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Texas A&M University
1.
Jeon, Ju Won.
Charge Storage in Organic Electrodes for Energy & Electrochemical Applications.
Degree: PhD, Chemical Engineering, 2014, Texas A&M University
URL: http://hdl.handle.net/1969.1/153935
► Energy storage has been emerging as an important research topic because of the lack of fossil fuels and growing energy consumption. This thesis focuses on…
(more)
▼ Energy storage has been emerging as an important research topic because of the lack of fossil fuels and growing
energy consumption. This thesis focuses on synthesis and characterization of electrode materials such as polyaniline, graphene, and nitrogen-doped porous carbon for use in
energy storage applications.
Polyaniline (PANI), a conjugated polymer, has been widely investigated as an electrode material for
energy storage. In order to enhance its oxidative stability, polyaniline:poly(2-acrylamido-2-methyl-1-propanesulfonic acid) (PANI:PAAMPSA) complex was synthesized using template polymerization. PANI:PAAMPSA possessed significantly increased oxidative stability up to 4.5 V (vs. Li/Li+) due to electrostatic and hydrogen bonding interactions between PANI and PAAMPSA. This polyacid-doped PANI showed a reversible capacity of 230 mAh/gPANI for over 800 cycles.
Three different polyaniline-based layer-by-layer (LbL) electrodes, PANI/PAAMPSA, PANI/PANI:PAAMPSA, and linear poly(ethylenimine)/PANI:PAAMPSA were fabricated and their charge
storage natures were assessed in non-aqueous
energy storage systems. PANI:PAAMPSA retained its oxidative stability within LbL electrodes. The PANI/PAAMPSA LbL electrode did not show enhanced oxidative stability as compared to PANI:PAAMPSA complexes, which indicates that the interactions between PANI and PAAMPSA are not as strong as in PANI:PAAMPSA complexes.
Porous PANI nanofiber/graphene hybrid electrodes were prepared by electrochemical reduction of PANI nanofiber/graphene oxide (PANI NF/GO) LbL assemblies at 1.5 V (vs. Li/Li+). The limited processibility of reduced graphene oxide was circumvented by using GO to build up PANI NF/GO LbL films followed by electrochemical reduction. PANI NF/electrochemically reduced graphene oxide (ERGO) LbL electrodes show high capacity and enhanced cycling stability. Its performance is strongly dependent on electrode thickness.
Nitrogen-doped porous carbon was synthesized by one-step carbonization of isorecticular metal-organic frameworks (IRMOF-3). Porous IRMOF-3 itself acts as a self-sacrificial template to provide porous structure. Furthermore, additional carbon and nitrogen sources were not required. The nitrogen content can be easily controlled by varying carbonization temperature. Nitrogen-doped porous carbon possessed significantly higher capacitance due to additional pseudocapacitance originating from nitrogen as compared to analogous nitrogen-free porous carbons.
Advisors/Committee Members: Lutkenhaus, Jodie L (advisor), Balbuena, Perla (committee member), Grunlan, Jamie (committee member), Wooley, Karen L (committee member).
Subjects/Keywords: Energy storage
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APA (6th Edition):
Jeon, J. W. (2014). Charge Storage in Organic Electrodes for Energy & Electrochemical Applications. (Doctoral Dissertation). Texas A&M University. Retrieved from http://hdl.handle.net/1969.1/153935
Chicago Manual of Style (16th Edition):
Jeon, Ju Won. “Charge Storage in Organic Electrodes for Energy & Electrochemical Applications.” 2014. Doctoral Dissertation, Texas A&M University. Accessed April 10, 2021.
http://hdl.handle.net/1969.1/153935.
MLA Handbook (7th Edition):
Jeon, Ju Won. “Charge Storage in Organic Electrodes for Energy & Electrochemical Applications.” 2014. Web. 10 Apr 2021.
Vancouver:
Jeon JW. Charge Storage in Organic Electrodes for Energy & Electrochemical Applications. [Internet] [Doctoral dissertation]. Texas A&M University; 2014. [cited 2021 Apr 10].
Available from: http://hdl.handle.net/1969.1/153935.
Council of Science Editors:
Jeon JW. Charge Storage in Organic Electrodes for Energy & Electrochemical Applications. [Doctoral Dissertation]. Texas A&M University; 2014. Available from: http://hdl.handle.net/1969.1/153935

Tampere University
2.
Tuomola, Topias.
Improving the use of renewable energy in Nykarleby
.
Degree: 2021, Tampere University
URL: https://trepo.tuni.fi/handle/10024/124809
► This master’s thesis is concentrating on the state of renewable energy production in Nykarleby and what kind of plans have already been made to increase…
(more)
▼ This master’s thesis is concentrating on the state of renewable energy production in Nykarleby and what kind of plans have already been made to increase the share of renewable energy production in the future. There are hydro power, wind power and biogas power plants already in the city and the number of wind power plants will increase in the next few years.The amount of wind power would increase from 7 MW to 370 MW.
In addition to reviewing the current plans, the thesis gives an estimation of how much energy can be produced with solar power in Nykarleby. The amount of produced energy stays close to that of the most southern city of Finland, Hanko, when the power of the plant is taken into consideration. For the solar power plant there are two different business models. In the first one, there is one company which builds the plant and then sells it to the investor, who takes care of it for its 30 years of operation time. This is not profitable for the builder, because of the low estimation of the selling price. However, for the investor it would be good business, since the payback time for the investor is under 19 years. In the second model, one company takes care of the plant all the way from the building phase to the 30 years of operation time and gets the income from selling the electricity. With this model the payback time is under 22 years, so it is feasible for the company.
The latter part of the thesis concentrates on how the energy storage system could be used alongside a wind power plant. Profitability calculations have been made for Björkbacken wind power plant, which is planned to be built in Nykarleby. Financial point of view concentrates on the first 10 years of operation, during which there usually is a contract, stating that the plant must produce a specific amount of energy every hour. The deficit must be compensated by energy purchases from the market. Then there is another company, which buys the amount of energy stated in the contract at fixed price. The need to buy energy is reduced from 37 % of annual hours to 24-36 % when the energy storage is taken into use. The reduction depends on the capacity of the storage and how much energy must be produced according to the contract. Today the price for the contract could be 3.1 c/kWh and with that price the savings from the decreased amount of electricity that must be bought will not cover the investment costs of the storage. For profitable investment the price of the contract should be at least 3.3 c/kWh.
In addition to the energy storage setup described above, another option could be a power-to-gas system, which could produce hydrogen out of water. Hydrogen could be used in the biogas plant, which is located right next to the wind farm, and they could use the hydrogen with carbon dioxide to produce methane. If 20 % of the energy produced by the wind farm would be used for hydrogen production, it would cover 95 % of the maximum hydrogen need of the biogas plant. Surplus hydrogen could be used as fuel for passenger cars, he popularity of which will…
Subjects/Keywords: energy storage
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
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APA (6th Edition):
Tuomola, T. (2021). Improving the use of renewable energy in Nykarleby
. (Masters Thesis). Tampere University. Retrieved from https://trepo.tuni.fi/handle/10024/124809
Chicago Manual of Style (16th Edition):
Tuomola, Topias. “Improving the use of renewable energy in Nykarleby
.” 2021. Masters Thesis, Tampere University. Accessed April 10, 2021.
https://trepo.tuni.fi/handle/10024/124809.
MLA Handbook (7th Edition):
Tuomola, Topias. “Improving the use of renewable energy in Nykarleby
.” 2021. Web. 10 Apr 2021.
Vancouver:
Tuomola T. Improving the use of renewable energy in Nykarleby
. [Internet] [Masters thesis]. Tampere University; 2021. [cited 2021 Apr 10].
Available from: https://trepo.tuni.fi/handle/10024/124809.
Council of Science Editors:
Tuomola T. Improving the use of renewable energy in Nykarleby
. [Masters Thesis]. Tampere University; 2021. Available from: https://trepo.tuni.fi/handle/10024/124809

Ryerson University
3.
Liu, Rongqiang.
Sensorless speed estimation for long term flywheel energy storage system in standby mode.:.
Degree: 2014, Ryerson University
URL: https://digital.library.ryerson.ca/islandora/object/RULA%3A2665
► A novel technique for sensorless speed estimation is presented in this thesis for squirrel cage induction machine (SCIM) drived long-term flywheel energy storage system (FESS)…
(more)
▼ A novel technique for sensorless speed estimation is presented in this thesis for squirrel cage induction machine (SCIM) drived long-term flywheel
energy storage system (FESS) in standby mode.
The SCIM model for long-term large-capacity FESS is presented. Based on dynamic model , a hybrid rotor flux observer and speed observer are derived. The hybrid rotor flux observer takes advantages of both the current model and voltage model flux observers by seamlessly incorporating these two models together for a better flux estimation performance even at low speed range. The fundamental speed observer is derived from the dynamic model for speed estimation with a fast response time for a tradeoff of the adaptive capabilities.
In order to observe the speed in standby mode, a modified field-oriented control (FOC) scheme is presented. The hybrid flux observer and speed observer are tested in association with the modified FOC. The proposed control technique adopts approaches in an effort to minimize the impact generated by the excitation and speed estimation process to the FESS.
Simulation and experiments are conducted to verify the feasibility of the proposed speed estimation at the standby mode. It is also observed that a step change of excitation current has a significant impact to the existing FESS. A ramp control for excitation current is added to avoid the possible oscillation of the estimated speed and the disturbance to the FESS. The speed estimation settling time is optimized based on the experiment and simulation.
Advisors/Committee Members: Xu, David (Degree supervisor), Ryerson University (Degree grantor).
Subjects/Keywords: Energy storage.; Energy storage. – -; Flywheels.; Flywheels. – -
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Liu, R. (2014). Sensorless speed estimation for long term flywheel energy storage system in standby mode.:. (Thesis). Ryerson University. Retrieved from https://digital.library.ryerson.ca/islandora/object/RULA%3A2665
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Liu, Rongqiang. “Sensorless speed estimation for long term flywheel energy storage system in standby mode.:.” 2014. Thesis, Ryerson University. Accessed April 10, 2021.
https://digital.library.ryerson.ca/islandora/object/RULA%3A2665.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Liu, Rongqiang. “Sensorless speed estimation for long term flywheel energy storage system in standby mode.:.” 2014. Web. 10 Apr 2021.
Vancouver:
Liu R. Sensorless speed estimation for long term flywheel energy storage system in standby mode.:. [Internet] [Thesis]. Ryerson University; 2014. [cited 2021 Apr 10].
Available from: https://digital.library.ryerson.ca/islandora/object/RULA%3A2665.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Liu R. Sensorless speed estimation for long term flywheel energy storage system in standby mode.:. [Thesis]. Ryerson University; 2014. Available from: https://digital.library.ryerson.ca/islandora/object/RULA%3A2665
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Ryerson University
4.
Syed, Irtaza Mohammad.
Predictive energy management and control for renewable energy plus battery energy storage systems.
Degree: 2016, Ryerson University
URL: https://digital.library.ryerson.ca/islandora/object/RULA%3A5817
► Renewable energy (RE) is one of the solutions to rising energy demands and growing environmental concerns. However, due to the intrinsic intermittency of RE resources,…
(more)
▼ Renewable energy (RE) is one of the solutions to rising energy demands and growing environmental concerns. However, due to the intrinsic intermittency of RE resources, generated power is irregular and the supplied energy is intermittent. Intermittency renders RE systems non-dispatchable and can cause energy surplus and shortage. RE surplus can translate into curtailment and shortage can cause supply and demand issues. Curtailment wastes RE and supply and demand issues result in loss of load compromising service quality and system reliability.
Battery energy storage system (BESS) is the widely accepted solution to mitigate the negative impacts of intermittency. However, this solution has relied on the conventional energy management and control (EMC) techniques that: 1) cause curtailment, 2) cause supply and demand issues, 3) cannot exploit BESS potential, 4) use RE passively (if and when available), and (5) are suitable only for readily dispatchable generation systems.
This work proposes predictive EMC (PEMC) over conventional EMC (CEMC) to predictively perform EMC of RE systems (photovoltaic (PV) and wind) plus BESS (RE-BESS). PEMC predictively optimizes resources, makes control decisions and manages RE system operations based on the present and future (forecasted) load (or commitments) and RE potential over 24 hours horizon. PEMC 1) minimizes curtailment (maximize RE proportions), 2) minimizes supply and demand issues, 3) exploits BESS potential, 4) uses RE proactively (instead of operating on the mercy of weather), 5) compensates for forecast errors, and 6) maximizes savings (or revenue).
Subjects/Keywords: Renewable energy sources; Storage batteries; Energy storage
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APA (6th Edition):
Syed, I. M. (2016). Predictive energy management and control for renewable energy plus battery energy storage systems. (Thesis). Ryerson University. Retrieved from https://digital.library.ryerson.ca/islandora/object/RULA%3A5817
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Syed, Irtaza Mohammad. “Predictive energy management and control for renewable energy plus battery energy storage systems.” 2016. Thesis, Ryerson University. Accessed April 10, 2021.
https://digital.library.ryerson.ca/islandora/object/RULA%3A5817.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Syed, Irtaza Mohammad. “Predictive energy management and control for renewable energy plus battery energy storage systems.” 2016. Web. 10 Apr 2021.
Vancouver:
Syed IM. Predictive energy management and control for renewable energy plus battery energy storage systems. [Internet] [Thesis]. Ryerson University; 2016. [cited 2021 Apr 10].
Available from: https://digital.library.ryerson.ca/islandora/object/RULA%3A5817.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Syed IM. Predictive energy management and control for renewable energy plus battery energy storage systems. [Thesis]. Ryerson University; 2016. Available from: https://digital.library.ryerson.ca/islandora/object/RULA%3A5817
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Uppsala University
5.
Östergård, Rickard.
Flywheel energy storage : a conceptucal study.
Degree: Electricity, 2011, Uppsala University
URL: http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-164500
► This master thesis was provided by ABB Cooperate Research in Västerås. This study has two major purposes: (1) to identify the characteristics of a…
(more)
▼ This master thesis was provided by ABB Cooperate Research in Västerås. This study has two major purposes: (1) to identify the characteristics of a flywheel energy storage system (FESS), (2) take the first steps in the development of a simulation model of a FESS.
For the first part of this master thesis a literature reviews was conducted with focus on energy storage technologies in general and FESS in particular. The model was developed in the simulation environment PSCAD/EMTDC; with the main purpose to provide working model for future studies of the electrical dynamics of a flywheel energy storage system.
The main conclusion of the literature review was that FESS is a promising energy storage solution; up to multiple megawatt scale. However, few large scale installations have so far been built and it is not a mature technology. Therefore further research and development is needed in multiple areas, including high strength composite materials, magnetic bearings and electrical machines. The model was implemented with the necessary control system and tested in a simulation case showing the operational characteristics.
Subjects/Keywords: Energy storage; Smart Grid; Flywheel energy storage
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Östergård, R. (2011). Flywheel energy storage : a conceptucal study. (Thesis). Uppsala University. Retrieved from http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-164500
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Östergård, Rickard. “Flywheel energy storage : a conceptucal study.” 2011. Thesis, Uppsala University. Accessed April 10, 2021.
http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-164500.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Östergård, Rickard. “Flywheel energy storage : a conceptucal study.” 2011. Web. 10 Apr 2021.
Vancouver:
Östergård R. Flywheel energy storage : a conceptucal study. [Internet] [Thesis]. Uppsala University; 2011. [cited 2021 Apr 10].
Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-164500.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Östergård R. Flywheel energy storage : a conceptucal study. [Thesis]. Uppsala University; 2011. Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-164500
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Waterloo
6.
Huang, Shucheng.
A New Adiabatic Compressed Air Energy Storage System: Modeling, Design, Optimization, and Experiments.
Degree: 2020, University of Waterloo
URL: http://hdl.handle.net/10012/16211
► Wind farms and solar farms often face challenges in delivering consistent power output during peak demand due to the inconsistency of wind and solar resources.…
(more)
▼ Wind farms and solar farms often face challenges in delivering consistent power output during peak demand due to the inconsistency of wind and solar resources. An adiabatic compressed air energy storage (ACAES) system based on the novel compression strategy is proposed to store and release energy when needed to reduce CO2 emission. Compared to existing ACAES system designs, the main potential advantages of the proposed system are the reduced cost, space, and simplicity. A prototype, originally developed for the air hybrid engine project at the University of Waterloo, was adopted for this project. Mathematical models were developed for the system under air compression (AC) and air motor (AM) mode. Simulations ran in GT-Suite yielded consistent results with mathematical models'. The previous prototype was thoroughly tested and evaluated. Design issues were addressed, and changes were incorporated into the new prototype design. The new experimental system models were developed in GT-Suite and evaluated through experimental analysis. The ACAES system with a separate thermal energy storage (TES) was detailed. Specifically, a low-temperature ACAES was selected for practical reasons, and water was chosen as the heat transfer medium (HTM). Simulation results confirmed the TES system's ability to maintain high pressure (HP) tank temperature of 150 deg C. A mean value model was developed to predict engine brake power, and a throttle controller was used to regulate the engine brake power during the air expansion process. Considering operational safety constraints and feasibility, system components were analyzed and optimized to improve the ACAES system roundtrip efficiency. Additionally, the genetic algorithm (GA) was used to optimize the valve timing, and simulation results showed that the optimized valve timing could improve the engine brake power by 13.38%. A comparison study was presented to analyze the roundtrip efficiency of the optimized ACAES system over the baseline system. It was observed that the AC/AM mode efficiency was improved by 108% and 70.3%, respectively.
Subjects/Keywords: adiabatic compressed air energy storage; energy storage
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Huang, S. (2020). A New Adiabatic Compressed Air Energy Storage System: Modeling, Design, Optimization, and Experiments. (Thesis). University of Waterloo. Retrieved from http://hdl.handle.net/10012/16211
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Huang, Shucheng. “A New Adiabatic Compressed Air Energy Storage System: Modeling, Design, Optimization, and Experiments.” 2020. Thesis, University of Waterloo. Accessed April 10, 2021.
http://hdl.handle.net/10012/16211.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Huang, Shucheng. “A New Adiabatic Compressed Air Energy Storage System: Modeling, Design, Optimization, and Experiments.” 2020. Web. 10 Apr 2021.
Vancouver:
Huang S. A New Adiabatic Compressed Air Energy Storage System: Modeling, Design, Optimization, and Experiments. [Internet] [Thesis]. University of Waterloo; 2020. [cited 2021 Apr 10].
Available from: http://hdl.handle.net/10012/16211.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Huang S. A New Adiabatic Compressed Air Energy Storage System: Modeling, Design, Optimization, and Experiments. [Thesis]. University of Waterloo; 2020. Available from: http://hdl.handle.net/10012/16211
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

McMaster University
7.
Milne, Jordan.
SYNTHESIS AND PROCESSING TECHNIQUES OF ADVANCED ELECTRODE MATERIALS FOR SUPERCAPACITOR APPLICATIONS.
Degree: MASc, 2019, McMaster University
URL: http://hdl.handle.net/11375/24258
► In a world that relies heavily on electricity and portable energy, the development of high performing energy storage devices is crucial. The ongoing push for…
(more)
▼ In a world that relies heavily on electricity and portable energy, the development of high performing energy storage devices is crucial. The ongoing push for energy storage devices such as batteries and supercapacitors to store more energy and charge/discharge faster has become exponentially stronger over the past decade. In order to meet the high demands, new materials and processing techniques must be developed.
A particle extraction through the liquid-liquid interface (PELLI) technique was used with a versatile extracting molecule, Octyl Gallate (OG). It was found that OG was able to extract a variety of materials including oxides, oxyhydroxides, and pure silver. The advantage of PELLI is that it circumvents the drying stage that occurs in many electrode synthesis techniques where metal oxides are synthesized in aqueous then dried and mixed with conductive additives dispersed in organic solvent. This drying stage causes a practically irreversible agglomeration which hinders mixing with conductive additives as well as reduces the surface area of the material, limiting its electrochemical performance. Using hydroxamates such as octanohydroxamic acid and bufexamac, a novel PELLI technique was developed based on the use of OHA as an extracting agent as well as a capping agent.
In addition, a preliminary investigation was started on advanced negative electrode material for supercapacitors. FeOOH-based electrodes exhibit high capacitance but low cyclic stability. Zn2+ ions were introduced during synthesis forming a doped Zn/FeOOH electrode which showed a significant increase in cyclic stability.
Thesis
Master of Applied Science (MASc)
Advisors/Committee Members: Zhitomirsky, Igor, Materials Science and Engineering.
Subjects/Keywords: Supercapacitors; Energy Storage
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Milne, J. (2019). SYNTHESIS AND PROCESSING TECHNIQUES OF ADVANCED ELECTRODE MATERIALS FOR SUPERCAPACITOR APPLICATIONS. (Masters Thesis). McMaster University. Retrieved from http://hdl.handle.net/11375/24258
Chicago Manual of Style (16th Edition):
Milne, Jordan. “SYNTHESIS AND PROCESSING TECHNIQUES OF ADVANCED ELECTRODE MATERIALS FOR SUPERCAPACITOR APPLICATIONS.” 2019. Masters Thesis, McMaster University. Accessed April 10, 2021.
http://hdl.handle.net/11375/24258.
MLA Handbook (7th Edition):
Milne, Jordan. “SYNTHESIS AND PROCESSING TECHNIQUES OF ADVANCED ELECTRODE MATERIALS FOR SUPERCAPACITOR APPLICATIONS.” 2019. Web. 10 Apr 2021.
Vancouver:
Milne J. SYNTHESIS AND PROCESSING TECHNIQUES OF ADVANCED ELECTRODE MATERIALS FOR SUPERCAPACITOR APPLICATIONS. [Internet] [Masters thesis]. McMaster University; 2019. [cited 2021 Apr 10].
Available from: http://hdl.handle.net/11375/24258.
Council of Science Editors:
Milne J. SYNTHESIS AND PROCESSING TECHNIQUES OF ADVANCED ELECTRODE MATERIALS FOR SUPERCAPACITOR APPLICATIONS. [Masters Thesis]. McMaster University; 2019. Available from: http://hdl.handle.net/11375/24258

Victoria University of Wellington
8.
Devese, Sam.
Use of a zeolite slurry to increase the charge retention of a low-cost aqueous supercapacitor.
Degree: 2019, Victoria University of Wellington
URL: http://hdl.handle.net/10063/8174
► To increase the viability of renewable energy technology, improvements must be made to existing energy storage devices. One such device is the supercapacitor, which is…
(more)
▼ To increase the viability of renewable
energy technology, improvements must be made to existing
energy storage devices. One such device is the supercapacitor, which is able to store
energy like a battery, but with faster charge-discharge times and increased cyclability. The two main factors limiting the widespread use of supercapacitor technology are the high component cost and high rate of self-discharge. In this project, both of these aspects were addressed, and a supercapacitor was successfully constructed using a carbon black slurry containing zeolitic structures with a pore size of 4 Å to accommodate the electrolyte ions of potassium and chloride.
Low-cost materials and production methods were used to create a supercapacitor with a measured capacitance of 17.25 F g⁻¹ and a coulombic efficiency of 100% determined by galvanostatic charge-discharge curve measurements.
Advisors/Committee Members: Nann, Thomas.
Subjects/Keywords: Energy; Storage; Supercapacitor
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Devese, S. (2019). Use of a zeolite slurry to increase the charge retention of a low-cost aqueous supercapacitor. (Masters Thesis). Victoria University of Wellington. Retrieved from http://hdl.handle.net/10063/8174
Chicago Manual of Style (16th Edition):
Devese, Sam. “Use of a zeolite slurry to increase the charge retention of a low-cost aqueous supercapacitor.” 2019. Masters Thesis, Victoria University of Wellington. Accessed April 10, 2021.
http://hdl.handle.net/10063/8174.
MLA Handbook (7th Edition):
Devese, Sam. “Use of a zeolite slurry to increase the charge retention of a low-cost aqueous supercapacitor.” 2019. Web. 10 Apr 2021.
Vancouver:
Devese S. Use of a zeolite slurry to increase the charge retention of a low-cost aqueous supercapacitor. [Internet] [Masters thesis]. Victoria University of Wellington; 2019. [cited 2021 Apr 10].
Available from: http://hdl.handle.net/10063/8174.
Council of Science Editors:
Devese S. Use of a zeolite slurry to increase the charge retention of a low-cost aqueous supercapacitor. [Masters Thesis]. Victoria University of Wellington; 2019. Available from: http://hdl.handle.net/10063/8174

University of Cambridge
9.
McTigue, Joshua.
Analysis and optimisation of thermal energy storage.
Degree: PhD, 2016, University of Cambridge
URL: https://www.repository.cam.ac.uk/handle/1810/263019https://www.repository.cam.ac.uk/bitstream/1810/263019/3/McTigue-2016-PhD.pdf.txt
;
https://www.repository.cam.ac.uk/bitstream/1810/263019/4/McTigue-2016-PhD.pdf.jpg
► The focus of this project is the storage of thermal energy in packed beds for bulk electricity storage applications. Packed beds are composed of pebbles…
(more)
▼ The focus of this project is the storage of thermal energy in packed beds for bulk electricity storage applications. Packed beds are composed of pebbles through which a heat transfer fluid passes, and a thermodynamic model of the heat transfer processes within the store is described. The packed beds are investigated using second law analysis which reveals trade-offs between several heat transfer processes and the importance of various design parameters. Parametric studies of the reservoir behaviour informs the design process and leads to a set of design guidelines. Two innovative design features are proposed and investigated. These features are segmented packed beds and radial-flow packed beds respectively. Thermal reservoirs are an integral component in a storage system known as Pumped Thermal Energy Storage (PTES). To charge, PTES uses a heat pump to create a difference in internal energy between two thermal stores; one hot and one cold. The cycle reverses during discharge with PTES operating as a heat engine. The heat pumps/engines require compression and expansion devices, for which simple models are described and are integrated with the packed bed models. The PTES system behaviour is investigated with parametric studies, and alternative design configurations are explored. A multi-objective genetic algorithm is used to undertake thermo-economic optimisations of packed-bed thermal reservoirs and PTES systems. The algorithm generates a set of optimal designs that illustrate the trade-off between capital cost and round-trip efficiency. Segmentation is found to be particularly beneficial in cold stores, and can add up to 1% to the round-trip efficiency of a PTES system. On the basis of the assumptions made, PTES can achieve efficiencies and energy densities comparable with other bulk electricity storage systems. However, the round-trip efficiency is very sensitive to the efficiency of the compression–expansion system. For designs that utilised bespoke reciprocating compressors and expanders, PTES might be expected to achieve electricity-to-electricity efficiencies of 64%. However, using compression and expansion efficiencies typical of off-theshelf devices the round-trip efficiency is around 45%.
Subjects/Keywords: thermal energy storage
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Chicago ·
MLA ·
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APA (6th Edition):
McTigue, J. (2016). Analysis and optimisation of thermal energy storage. (Doctoral Dissertation). University of Cambridge. Retrieved from https://www.repository.cam.ac.uk/handle/1810/263019https://www.repository.cam.ac.uk/bitstream/1810/263019/3/McTigue-2016-PhD.pdf.txt ; https://www.repository.cam.ac.uk/bitstream/1810/263019/4/McTigue-2016-PhD.pdf.jpg
Chicago Manual of Style (16th Edition):
McTigue, Joshua. “Analysis and optimisation of thermal energy storage.” 2016. Doctoral Dissertation, University of Cambridge. Accessed April 10, 2021.
https://www.repository.cam.ac.uk/handle/1810/263019https://www.repository.cam.ac.uk/bitstream/1810/263019/3/McTigue-2016-PhD.pdf.txt ; https://www.repository.cam.ac.uk/bitstream/1810/263019/4/McTigue-2016-PhD.pdf.jpg.
MLA Handbook (7th Edition):
McTigue, Joshua. “Analysis and optimisation of thermal energy storage.” 2016. Web. 10 Apr 2021.
Vancouver:
McTigue J. Analysis and optimisation of thermal energy storage. [Internet] [Doctoral dissertation]. University of Cambridge; 2016. [cited 2021 Apr 10].
Available from: https://www.repository.cam.ac.uk/handle/1810/263019https://www.repository.cam.ac.uk/bitstream/1810/263019/3/McTigue-2016-PhD.pdf.txt ; https://www.repository.cam.ac.uk/bitstream/1810/263019/4/McTigue-2016-PhD.pdf.jpg.
Council of Science Editors:
McTigue J. Analysis and optimisation of thermal energy storage. [Doctoral Dissertation]. University of Cambridge; 2016. Available from: https://www.repository.cam.ac.uk/handle/1810/263019https://www.repository.cam.ac.uk/bitstream/1810/263019/3/McTigue-2016-PhD.pdf.txt ; https://www.repository.cam.ac.uk/bitstream/1810/263019/4/McTigue-2016-PhD.pdf.jpg

UCLA
10.
Zhong, Xing.
In the Investigation of New Materials/Structures and Their Applications in Energy Storage/Conversion Systems.
Degree: Chemistry, 2014, UCLA
URL: http://www.escholarship.org/uc/item/333438bm
► As the need for energy is increasing fast these days, it is imperative to develop new and reliable energy conversion and storage technology strategies that…
(more)
▼ As the need for energy is increasing fast these days, it is imperative to develop new and reliable energy conversion and storage technology strategies that are alternative to the fossil fuels. In the first part of my thesis, we investigate the possibility of utilizing silicon as potential photocatalyst in the organic waste degradation. We first demonstrate that the platinum nanoparticle loaded porous silicon nanowires can be used as effective photocatalysts for photocatalytic degradation of organic dyes and toxic pollutants under visible irradiation. Secondly, we demonstrate a facile and simple solution phase method to enhance and stabilize the photoactivity of silicon nanowires, by functionalizing the silicon nanowires with reduced graphene oxide sheets. Photocatalytic IC dye degradation testing shows that the photoactivity of silicon nanowires can be enhanced and maintained without decay, featured with an initial activation process. In the second part of my thesis, we investigate various high energy density air battery systems. First of all, a silicon-air battery using an alkaline solution as electrolyte is investigated, achieving a high anode specific capacity. Second we demonstrate a new family of silicide based anode materials for high energy density primary air batteries. We show various silicide anodes (Mg2Si, TiSi2, CoSi2 and VSi2) can exhibit excellent electrochemical performance with unparalleled capacity in both thin film and bulk power pellet form. Lastly, we invent a hydrophobic three-dimensional (3D) graphene membrane as a moisture-resistive cathode for high performance Li-air batteries, enabling a robust Li-air battery with exceptional performance. All of these new technology strategies will open up exciting opportunities for many applications in the energy field.
Subjects/Keywords: Chemistry; Energy conversion; Energy Storage
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Zhong, X. (2014). In the Investigation of New Materials/Structures and Their Applications in Energy Storage/Conversion Systems. (Thesis). UCLA. Retrieved from http://www.escholarship.org/uc/item/333438bm
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Zhong, Xing. “In the Investigation of New Materials/Structures and Their Applications in Energy Storage/Conversion Systems.” 2014. Thesis, UCLA. Accessed April 10, 2021.
http://www.escholarship.org/uc/item/333438bm.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Zhong, Xing. “In the Investigation of New Materials/Structures and Their Applications in Energy Storage/Conversion Systems.” 2014. Web. 10 Apr 2021.
Vancouver:
Zhong X. In the Investigation of New Materials/Structures and Their Applications in Energy Storage/Conversion Systems. [Internet] [Thesis]. UCLA; 2014. [cited 2021 Apr 10].
Available from: http://www.escholarship.org/uc/item/333438bm.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Zhong X. In the Investigation of New Materials/Structures and Their Applications in Energy Storage/Conversion Systems. [Thesis]. UCLA; 2014. Available from: http://www.escholarship.org/uc/item/333438bm
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Penn State University
11.
Zhou, Yue.
High Performance Ionic Capacitive Energy Storage and Harvesting Devices.
Degree: 2015, Penn State University
URL: https://submit-etda.libraries.psu.edu/catalog/27156
► Due to the deep concerns of environmental issues and the consumption of fossil fuels, such as petroleum, natural gas and coal, as well as the…
(more)
▼ Due to the deep concerns of environmental issues and the consumption of fossil fuels, such as petroleum, natural gas and coal, as well as the accelerated greenhouse effect, the renewable
energy sources e.g., wind, solar and hydroelectricity have attracted enormous interests. The large fluctuations of these renewable
energy sources in power output have brought the vigorous development of the area of
energy storage system. Supercapacitors, which bridge the gap of power and
energy between batteries and dielectric capacitors, have developed fast in the last decades among these
energy storage devices. Although batteries can store a large quantity of
energy, they release
energy in a slow rate, resulting in a very low power density with a limited lifetime. On the other hand, dielectric capacitors can be charged and discharged at high rate and hence possess very high power density, but their
energy density is low. With relatively high power, mid-high
energy density and long cycle lifetime, supercapacitors are attractive for many applications, such as in grid scale renewable
energy storage and in hybrid electric vehicles where high
energy, high power and reasonable lifetime are all required. However, the current commercial supercapacitor product still suffers from the low
energy density (less than 10 Wh/kg) and low power density (1 kW/kg). Hence, it is highly desired to further improve electrochemcial performance of supercapacitors cells for the advanced and wide applications. In this dissertation, different supercapacitor cells are introduced to improve the performance by several strategies such as controlling the nanomorphology of electrodes and optimizing the cell configuration.
The tortuous ion transport pathways formed in activated carbon, which is widely used as electrodes in the current commerical products, have influenced the power denisty of the cell. To overcome this drawback, the aligned carbon nanotubes (A-CNTs) were investigated in this dissetation due to the superior electrical conductivity and parallel ion pathways of electrodes. Meanwhile, to achieve high volumetric
energy and power densities of the cells, a unique mechanical densification method was developed to allow the density of A-CNTs to be tuned precisely over a broad range from 1% volume fraction (Vf) to 40% Vf while preserving the straight ion pathway between A-CNTs. As a result, the supercapacitors fabricated from 40% volumetric fraction (Vf) of A-CNTs as the electrodes with the thickness of 0.8 mm exhibit a power density of 25 kW L-1 (50 kW kg-1), which is much higher than that of the A-CNTs electrodes with similar thickness fabricated by other methods and that of activated carbon electrodes.
Pseudocapacitive materials, such as conducitng polymers and transition metal oxides, can be incorporated into the electrode to increase the specific capacitance because the whole bulk (not only the surface for pure carbon electrode) of pseudocapacitive material has involved the electrochemical
energy storage. Poly(ethylenedioxythiophene) (PEDOT) was studied as…
Advisors/Committee Members: Qiming Zhang, Dissertation Advisor/Co-Advisor, Qiming Zhang, Committee Chair/Co-Chair, Shizhuo Yin, Committee Member, Noel Christopher Giebink, Committee Member, Qing Wang, Committee Member.
Subjects/Keywords: Energy storage; Energy harvesting; supercapacitor
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Zhou, Y. (2015). High Performance Ionic Capacitive Energy Storage and Harvesting Devices. (Thesis). Penn State University. Retrieved from https://submit-etda.libraries.psu.edu/catalog/27156
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Zhou, Yue. “High Performance Ionic Capacitive Energy Storage and Harvesting Devices.” 2015. Thesis, Penn State University. Accessed April 10, 2021.
https://submit-etda.libraries.psu.edu/catalog/27156.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Zhou, Yue. “High Performance Ionic Capacitive Energy Storage and Harvesting Devices.” 2015. Web. 10 Apr 2021.
Vancouver:
Zhou Y. High Performance Ionic Capacitive Energy Storage and Harvesting Devices. [Internet] [Thesis]. Penn State University; 2015. [cited 2021 Apr 10].
Available from: https://submit-etda.libraries.psu.edu/catalog/27156.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Zhou Y. High Performance Ionic Capacitive Energy Storage and Harvesting Devices. [Thesis]. Penn State University; 2015. Available from: https://submit-etda.libraries.psu.edu/catalog/27156
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
12.
Schweitz, Anders.
The potential of grid energy storage: a case study of the Nordic countries and Germany.
Degree: Energy Systems and Building Technology, 2019, University of Gävle
URL: http://urn.kb.se/resolve?urn=urn:nbn:se:hig:diva-30465
► The increasing share of renewable electricity will make energy storage technologies indispensable in the future. In this study, the potential of grid energy storage…
(more)
▼ The increasing share of renewable electricity will make energy storage technologies indispensable in the future. In this study, the potential of grid energy storage technologies is discussed, focusing on the Nordic countries as well as Germany. It is challenging to balance the intermittency of wind power and solar power production in the energy system. In Norway and Sweden, and to some extent Finland, hydropower is a very important balancing resource. Compressed Air Energy Storage (CAES) is a technology that has not had a real breakthrough yet. There are ongoing projects at different locations where one of the targets is to achieve better round-trip efficiency by taking care of the heat generated at compression. Pumped hydroelectric storage (PHS) has advantages in being cost-efficient and has a high round-trip efficiency. There is probably a high theoretical potential of new generating capacity in Norway and Sweden, but the electricity cost does not vary enough for new developments to be profitable at the moment. The environmental and social impact of PHS plants is an important and difficult aspect to handle. Power-to-gas, power-to-power and hydrogen storage has been getting more attention recently but needs more research to increase the round-trip efficiency and to reduce the costs of electrolysers, storage and fuel cells. Batteries can be well suited as a minute reserve or for peak shaving but are currently not cost-efficient for long-time storage. With lower prices and the possibility of using more abundant metals with less environmental and social impact batteries could play a larger role in electric grids. There might be possibilities of integrating batteries in electric vehicles with power systems as well.To speed up the development of energy storage technologies, governmental subsidies might be necessary. In the future, a larger variation in electricity cost can be expected during different times of the day and the year, which will make energy storage facilities more profitable.
Subjects/Keywords: energy storage; Energy Engineering; Energiteknik
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Schweitz, A. (2019). The potential of grid energy storage: a case study of the Nordic countries and Germany. (Thesis). University of Gävle. Retrieved from http://urn.kb.se/resolve?urn=urn:nbn:se:hig:diva-30465
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Schweitz, Anders. “The potential of grid energy storage: a case study of the Nordic countries and Germany.” 2019. Thesis, University of Gävle. Accessed April 10, 2021.
http://urn.kb.se/resolve?urn=urn:nbn:se:hig:diva-30465.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Schweitz, Anders. “The potential of grid energy storage: a case study of the Nordic countries and Germany.” 2019. Web. 10 Apr 2021.
Vancouver:
Schweitz A. The potential of grid energy storage: a case study of the Nordic countries and Germany. [Internet] [Thesis]. University of Gävle; 2019. [cited 2021 Apr 10].
Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:hig:diva-30465.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Schweitz A. The potential of grid energy storage: a case study of the Nordic countries and Germany. [Thesis]. University of Gävle; 2019. Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:hig:diva-30465
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Arizona State University
13.
Whitcraft, Daniel Scott.
Implementing Load Shifting Using Thermal Energy Ice
Storage.
Degree: Construction, 2016, Arizona State University
URL: http://repository.asu.edu/items/40351
► For decades, load shifting control, one of the most effective peak demand management methods, has attracted attention from both researchers and engineers. Various load shifting…
(more)
▼ For decades, load shifting control, one of the most
effective peak demand management methods, has attracted attention
from both researchers and engineers. Various load shifting controls
have been developed and introduced in mainly commercial buildings.
Utility companies typically penalize consumers with “demand rates”.
This along with increased population and increased customer energy
demand will only increase the need for load shifting. There have
been many white papers, thesis papers and case studies written on
the different types of Thermal Energy Storage and their uses.
Previous papers have been written by Engineers, Manufacturers and
Researchers. This thesis paper is unique because it will be
presented from the application and applied perspective of the
Facilities Manager. There is a need in the field of Facilities
Management for relevant applications. This paper will present and
discuss the methodology, process applications and challenges of
load shifting using (TES) Thermal Energy Storage, mainly ice
storage.
Subjects/Keywords: Sustainability; Energy; Thermal Energy Storage
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Whitcraft, D. S. (2016). Implementing Load Shifting Using Thermal Energy Ice
Storage. (Masters Thesis). Arizona State University. Retrieved from http://repository.asu.edu/items/40351
Chicago Manual of Style (16th Edition):
Whitcraft, Daniel Scott. “Implementing Load Shifting Using Thermal Energy Ice
Storage.” 2016. Masters Thesis, Arizona State University. Accessed April 10, 2021.
http://repository.asu.edu/items/40351.
MLA Handbook (7th Edition):
Whitcraft, Daniel Scott. “Implementing Load Shifting Using Thermal Energy Ice
Storage.” 2016. Web. 10 Apr 2021.
Vancouver:
Whitcraft DS. Implementing Load Shifting Using Thermal Energy Ice
Storage. [Internet] [Masters thesis]. Arizona State University; 2016. [cited 2021 Apr 10].
Available from: http://repository.asu.edu/items/40351.
Council of Science Editors:
Whitcraft DS. Implementing Load Shifting Using Thermal Energy Ice
Storage. [Masters Thesis]. Arizona State University; 2016. Available from: http://repository.asu.edu/items/40351

Texas A&M University
14.
Abu-Elrub, Ahmad Mohammad Amin.
Planning of a Hybrid Energy System Connected to a Distribution System.
Degree: PhD, Electrical Engineering, 2016, Texas A&M University
URL: http://hdl.handle.net/1969.1/158597
► Global warming and excessive use of depletable energy resources are considered as some of the most serious problems that need to be solved. As a…
(more)
▼ Global warming and excessive use of depletable
energy resources are considered as some of the most serious problems that need to be solved. As a response, renewable
energy sources (RES) have been gaining an increasing importance in recent years. The electrical power generated from RES tends to be fluctuating due to intermittency of wind speed and solar radiation which may result in frequency and voltage deviations in the grid as well as loss of the capacity to serve the load. Distributed generation of wind-photovoltaic hybrid systems connected to
energy storage (ES) is proposed to overcome the variability of RES. However, the high cost of the equipment for such systems is also a challenge.
In this dissertation, planning of a hybrid wind-photovoltaic
energy system combined with ES connected to a distribution system is described. The planning procedure is done in two different configurations. In the first one, the objective is to find optimal ES size for a wind farm. The objective function measures the economic benefit gained from selling of the dispatched power to the grid against the cost of ES. The result of the optimization gives the optimal size of ES. A probability distribution function (pdf) is created to represent the optimal size of ES for the planning horizon and then a case study for one year is conducted to illustrate the proposed method. For the second configuration, optimization techniques which use linear programming, two stage stochastic programming and scenario aggregation are deployed in order to find the optimal plan for the hybrid
energy system. The proposed procedure uses historical wind speed, solar radiation,
energy market price, and load data to determine the system design. The objective function measures the total annual cost of the proposed system. The results of the optimization procedure give the optimal size for wind farm, solar farm, and ES needed to meet the load requirements, minimize the annual cost, and consider system uncertainties and system reliability.
Advisors/Committee Members: Singh, Chanan (advisor), Xie, Le (committee member), Kish, Laszlo (committee member), Butenko, Sergiy (committee member).
Subjects/Keywords: hybrid energy system; energy storage
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Abu-Elrub, A. M. A. (2016). Planning of a Hybrid Energy System Connected to a Distribution System. (Doctoral Dissertation). Texas A&M University. Retrieved from http://hdl.handle.net/1969.1/158597
Chicago Manual of Style (16th Edition):
Abu-Elrub, Ahmad Mohammad Amin. “Planning of a Hybrid Energy System Connected to a Distribution System.” 2016. Doctoral Dissertation, Texas A&M University. Accessed April 10, 2021.
http://hdl.handle.net/1969.1/158597.
MLA Handbook (7th Edition):
Abu-Elrub, Ahmad Mohammad Amin. “Planning of a Hybrid Energy System Connected to a Distribution System.” 2016. Web. 10 Apr 2021.
Vancouver:
Abu-Elrub AMA. Planning of a Hybrid Energy System Connected to a Distribution System. [Internet] [Doctoral dissertation]. Texas A&M University; 2016. [cited 2021 Apr 10].
Available from: http://hdl.handle.net/1969.1/158597.
Council of Science Editors:
Abu-Elrub AMA. Planning of a Hybrid Energy System Connected to a Distribution System. [Doctoral Dissertation]. Texas A&M University; 2016. Available from: http://hdl.handle.net/1969.1/158597

Delft University of Technology
15.
Hendriks, M. (author).
Local Hydroelectric Energy Storage: A feasibility study about a small scale energy storage system combining hydropower, gravity power, spring power and air pressure.
Degree: 2016, Delft University of Technology
URL: http://resolver.tudelft.nl/uuid:2abe6274-dcb4-4811-b344-0caa182cce09
► Renewable energy sources, like wind- and solar power, are expected to generate a greater part of the electricity production in the Netherlands each upcoming year.…
(more)
▼ Renewable energy sources, like wind- and solar power, are expected to generate a greater part of the electricity production in the Netherlands each upcoming year. Besides all the advantages, the energy supply of these renewable energy sources fluctuates heavily as they mainly depend on the amount of wind and sun. Therefore, the electricity market is in need of a solution to mitigate supply fluctuations and deliver sustainable electricity even during dark and low-wind periods. My research focusses on the feasibility of a Local Hydroelectric Energy Storage system which can be applied in the built environment (see figure below). The use of proven technology from Pumped Hydro Storage plants combined with compressed air increases the water pressure and results in an energy dense storage solution which would be well suitable for flat countries such as the Netherlands.
Civil Engineering and Geosciences
Hydraulic Engineering
Advisors/Committee Members: Jonkman, S.N. (mentor), Reinders, K.J. (mentor), Van der Toorn, A. (mentor), De Vries, P.A. (mentor), Hornschuh, J. (mentor), Bitter, G. (mentor).
Subjects/Keywords: LHES; energy storage; local energy storage; hydro storage; hydroelectric energy storage; electricity storage; electricity; storage; hydro; hydroelectric; local; energy
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Hendriks, M. (. (2016). Local Hydroelectric Energy Storage: A feasibility study about a small scale energy storage system combining hydropower, gravity power, spring power and air pressure. (Masters Thesis). Delft University of Technology. Retrieved from http://resolver.tudelft.nl/uuid:2abe6274-dcb4-4811-b344-0caa182cce09
Chicago Manual of Style (16th Edition):
Hendriks, M (author). “Local Hydroelectric Energy Storage: A feasibility study about a small scale energy storage system combining hydropower, gravity power, spring power and air pressure.” 2016. Masters Thesis, Delft University of Technology. Accessed April 10, 2021.
http://resolver.tudelft.nl/uuid:2abe6274-dcb4-4811-b344-0caa182cce09.
MLA Handbook (7th Edition):
Hendriks, M (author). “Local Hydroelectric Energy Storage: A feasibility study about a small scale energy storage system combining hydropower, gravity power, spring power and air pressure.” 2016. Web. 10 Apr 2021.
Vancouver:
Hendriks M(. Local Hydroelectric Energy Storage: A feasibility study about a small scale energy storage system combining hydropower, gravity power, spring power and air pressure. [Internet] [Masters thesis]. Delft University of Technology; 2016. [cited 2021 Apr 10].
Available from: http://resolver.tudelft.nl/uuid:2abe6274-dcb4-4811-b344-0caa182cce09.
Council of Science Editors:
Hendriks M(. Local Hydroelectric Energy Storage: A feasibility study about a small scale energy storage system combining hydropower, gravity power, spring power and air pressure. [Masters Thesis]. Delft University of Technology; 2016. Available from: http://resolver.tudelft.nl/uuid:2abe6274-dcb4-4811-b344-0caa182cce09

University of Waterloo
16.
Kakodkar, Siddharth Atul.
Extensible Modeling of Compressed Air Energy Storage Systems.
Degree: 2018, University of Waterloo
URL: http://hdl.handle.net/10012/13858
► There is a growing number of renewable energy sources that can supply power to the electrical grid. These renewable sources of energy are intermittent in…
(more)
▼ There is a growing number of renewable energy sources that can supply power to the electrical grid.
These renewable sources of energy are intermittent in nature and therefore the transition from using
fossil fuels to green renewables requires the use of energy storage technologies to maintain and
regulate a reliable supply of electricity. Energy storage technologies play a key role in allowing
energy providers to provide a steady supply of electricity by balancing the fluctuations caused by
sources of renewable energy. Compressed Air Energy Storage (CAES) is a promising utility scale
energy storage technology that is suitable for long-duration energy storage and can be used to
integrate renewable energy (such as Wind energy) to the electrical grid. CAES technologies can be
broadly classified into 3 types: Diabatic-CAES (D-CAES), Adiabatic-CAES (A-CAES) and
Isothermal-CAES (I-CAES).
The author first performs a review on the different types of energy storage available today and a
literature review on of CAES system level models, Turbomachinery models, and cavern models.
After the gaps in literature are identified, the author then develops a flexible and extensible model of
an A-CAES system, which can be used a CAES plant designer to obtain a first order thermodynamic
evaluation of a particular plant configuration. The developed model is scalable, modular and can be
connected to a control strategy. The model is able to capture time dependent losses and part load
behavior of turbomachinery. The modeling methodology is focused around keeping the model
extensible, i.e. components and their fidelity can be easily altered for the model’s future growth. The
components modeled are the compressor, the turbine, the induction motor, the generator, and a
thermal energy storage device to the make the CAES plant adiabatic. The model is created using the
Matlab/Simulink® software, which is commonly used tool for modeling.
The A-CAES plant model was simulated for 23.3 hours comprising of 12.47 hours of charging
using a mass flow rate of 107.5 kg/s, 8 hours of storage and 2.83 hours of discharge using a mass
flow rate of 400 kg/s. The maximum and minimum cavern pressures were 72 bar and 42 bar
respectively. The obtained round trip efficiency is 76.24%. Additionally, the turbine start-up time was
found to be 760 seconds. The compressor train average efficiency was calculated as 70%, the
expansion train average efficiency was calculated as 81% and the TES efficiency was calculated as
91%. The models simulated the behavior of an A-CAES plant accurately with the compressor and
turbine showing a close resemblance to their performance maps. The results indicate that Adiabatic-CAES is a promising and emerging technology. However, further research and development is
required beyond this thesis; specifically, in the area of thermal energy storage and management.
Finally, the author makes recommendations on how to further improve upon the achieved objectives
in this work.
Subjects/Keywords: Compressed Air Energy Storage; Grid storage; Energy storage; Renewable energy; Sustainable energy; Cavern; Turbomachinery
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APA (6th Edition):
Kakodkar, S. A. (2018). Extensible Modeling of Compressed Air Energy Storage Systems. (Thesis). University of Waterloo. Retrieved from http://hdl.handle.net/10012/13858
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Kakodkar, Siddharth Atul. “Extensible Modeling of Compressed Air Energy Storage Systems.” 2018. Thesis, University of Waterloo. Accessed April 10, 2021.
http://hdl.handle.net/10012/13858.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Kakodkar, Siddharth Atul. “Extensible Modeling of Compressed Air Energy Storage Systems.” 2018. Web. 10 Apr 2021.
Vancouver:
Kakodkar SA. Extensible Modeling of Compressed Air Energy Storage Systems. [Internet] [Thesis]. University of Waterloo; 2018. [cited 2021 Apr 10].
Available from: http://hdl.handle.net/10012/13858.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Kakodkar SA. Extensible Modeling of Compressed Air Energy Storage Systems. [Thesis]. University of Waterloo; 2018. Available from: http://hdl.handle.net/10012/13858
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

California State University – Sacramento
17.
Lausterer, Maria Loise Lani.
Optimizing a flywheel for residential use in Sacramento.
Degree: MS, Mechanical Engineering, 2020, California State University – Sacramento
URL: http://hdl.handle.net/10211.3/217474
► Renewable energy technology such as solar energy has variable outputs. Examples of variable outputs are situations where there is cloud coverage or there is not…
(more)
▼ Renewable
energy technology such as solar
energy has variable outputs. Examples of variable outputs are situations where there is cloud coverage or there is not a balance between supply and demand.
Energy storage, specifically a flywheel, has great potential for smoothing out the power supply from solar panels and trying to balance fluctuating
energy. Flywheels have been around for centuries to serve as a means to store
energy. A flywheel power plant can power a city, but if the plant were to stop supplying
energy, the entire city would be affected. If each house had its own flywheel and one unit were to stop working, the other flywheels would not be affected and would therefore continue running. The primary goal of this research is to design an optimized flywheel and solar panel unit based on the amount of
energy production needed. The components optimized are the size and geometry of the flywheel based on
energy consumption data of a house in Sacramento, California. According to SMUD, the average yearly
energy consumption of a residential home in Sacramento is about 10,000-kilowatt hour. Based on this value, a flywheel made out of either 1026 carbon steel or T1000G/epoxy with the dimensions 36??? ID by 48??? OD by 48??? in height will both be able to reach the
energy consumption value so long as there are 129 and 10 units respectively. The flywheel is designed to be coupled with a solar panel. The flywheel stores excess
energy from the solar panel and uses it to provide
energy to the home when the solar panel cannot provide a sufficient amount.
Advisors/Committee Members: Tang, Hong-Yue.
Subjects/Keywords: Renewable energy; Energy storage system; Kinetic energy
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Lausterer, M. L. L. (2020). Optimizing a flywheel for residential use in Sacramento. (Masters Thesis). California State University – Sacramento. Retrieved from http://hdl.handle.net/10211.3/217474
Chicago Manual of Style (16th Edition):
Lausterer, Maria Loise Lani. “Optimizing a flywheel for residential use in Sacramento.” 2020. Masters Thesis, California State University – Sacramento. Accessed April 10, 2021.
http://hdl.handle.net/10211.3/217474.
MLA Handbook (7th Edition):
Lausterer, Maria Loise Lani. “Optimizing a flywheel for residential use in Sacramento.” 2020. Web. 10 Apr 2021.
Vancouver:
Lausterer MLL. Optimizing a flywheel for residential use in Sacramento. [Internet] [Masters thesis]. California State University – Sacramento; 2020. [cited 2021 Apr 10].
Available from: http://hdl.handle.net/10211.3/217474.
Council of Science Editors:
Lausterer MLL. Optimizing a flywheel for residential use in Sacramento. [Masters Thesis]. California State University – Sacramento; 2020. Available from: http://hdl.handle.net/10211.3/217474

Delft University of Technology
18.
Pollux, Jerry (author).
Hydrogen as seasonal energy storage for Floriade: The implications of hydrogen in the built environment as part of an energy system.
Degree: 2019, Delft University of Technology
URL: http://resolver.tudelft.nl/uuid:91bbfde6-077c-41a2-95d3-5f06e46f77d7
► Hydrogen is known for a variety of applications and is often associated with The Energy Transition. This thesis aims to explore the possibilities of applying…
(more)
▼ Hydrogen is known for a variety of applications and is often associated with The Energy Transition. This thesis aims to explore the possibilities of applying hydrogen as a seasonal buffer of renewable energy. The research is applied to the case study Floriade, which is a neighborhood currently under development and set to be completed in 2022. The research consists of four parts, each of which contributes the integral design of an energy system that incorporates hydrogen as a seasonal buffer. The first part focusses on the design of the energy system and the elements that are part of an energy system. Multiple energy system designs, including systems without hydrogen incorporated are evaluated. A multiple criteria analysis is undertaken in order to come to a design with an optimal configuration of elements. The system layout and components are dependent on the energy demand and the production potential of the neighborhood. The energy demand and the production capacity is calculated with an energy model, which is described in the second part of the research. Multiple software packages are used to calculate and validate data necessary for the research. The consumption and production data are used to make up the balance of energy consumption and production. The energy balance is used to calculate the efficiency of the energy system. The efficiency determines the feasibility in terms of energy losses and gains. This is described in the third part of the thesis. The overall system efficiency are calculated and the added value of storing renewable energy as hydrogen is evaluated. To minimize energy losses by means of transport all system components for making and storing hydrogen are located in one building in a central location. The final part of the thesis describes the design of this energy hub. The design of the building is based on safety measures that should be taken into account when introducing hydrogen in the built environment. The research results in the design of an energy system in which hydrogen is applied as a season buffer for renewable energy. The aspects of both energy system design as well as the application of hydrogen in de built environment are evaluated to draw conclusions on the opportunities and challenges of applying hydrogen as a seasonal buffer.
Architecture, Urbanism and Building Sciences | Building Technology
Advisors/Committee Members: van den Dobbelsteen, A.A.J.F. (mentor), Klein, T. (graduation committee), Delft University of Technology (degree granting institution).
Subjects/Keywords: Hydrogen; Energy storage; Energy transition; Energy system
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Pollux, J. (. (2019). Hydrogen as seasonal energy storage for Floriade: The implications of hydrogen in the built environment as part of an energy system. (Masters Thesis). Delft University of Technology. Retrieved from http://resolver.tudelft.nl/uuid:91bbfde6-077c-41a2-95d3-5f06e46f77d7
Chicago Manual of Style (16th Edition):
Pollux, Jerry (author). “Hydrogen as seasonal energy storage for Floriade: The implications of hydrogen in the built environment as part of an energy system.” 2019. Masters Thesis, Delft University of Technology. Accessed April 10, 2021.
http://resolver.tudelft.nl/uuid:91bbfde6-077c-41a2-95d3-5f06e46f77d7.
MLA Handbook (7th Edition):
Pollux, Jerry (author). “Hydrogen as seasonal energy storage for Floriade: The implications of hydrogen in the built environment as part of an energy system.” 2019. Web. 10 Apr 2021.
Vancouver:
Pollux J(. Hydrogen as seasonal energy storage for Floriade: The implications of hydrogen in the built environment as part of an energy system. [Internet] [Masters thesis]. Delft University of Technology; 2019. [cited 2021 Apr 10].
Available from: http://resolver.tudelft.nl/uuid:91bbfde6-077c-41a2-95d3-5f06e46f77d7.
Council of Science Editors:
Pollux J(. Hydrogen as seasonal energy storage for Floriade: The implications of hydrogen in the built environment as part of an energy system. [Masters Thesis]. Delft University of Technology; 2019. Available from: http://resolver.tudelft.nl/uuid:91bbfde6-077c-41a2-95d3-5f06e46f77d7

Delft University of Technology
19.
Hofman, Dick (author).
Energy storage for decentralized renewable energy generation to mitigate connection scarcity on the MV-grid.
Degree: 2020, Delft University of Technology
URL: http://resolver.tudelft.nl/uuid:de2e2daa-067c-4077-b110-87133d53584a
► The goal of this research is to be used as a framework for adding energy storage to aid in the connection of decentralized renewable energy…
(more)
▼ The goal of this research is to be used as a framework for adding
energy storage to aid in the connection of decentralized renewable
energy generation in areas with limited connection availability to the electricity grid. The dependence on fossil fuels is reduced with the aim to reduce greenhouse gas emissions. In the Netherlands this means that natural gas is slowly faded out of our society. One consequence of this is the electrification of some functionalities that natural gas had, like heating houses and cooking. Additionally, more and more people are choosing to drive electric vehicles. On the supply side more and more renewable
energy sources are being installed to increase the renewable
energy mix in our electricity market. Because the supply and demand of electricity increases faster than new cables can be installed, the electricity grid is put under strain. The electricity grid was designed, decades ago, to only transport electricity from central, large
energy generation plants to the consumer. However, nowadays there are also developers that are building 'decentralized' PV parks and wind farms. These decentralized generation systems are unable to be connected to the MV-grid.
Energy storage has been identified to be a valuable asset to help with the penetration of renewable
energy.
Energy storage can help to match the supply and demand, improve the power quality, improve the variability of the power supply and smooth out the peaks of over-generation most associated with the congestion on the MV-grid. It is also possible to (temporally) replace the necessary grid reinforcement. However,
energy storage is still very expensive. So it needs to be examined how
energy storage can be interesting for this problem. A knowledge gap exist on
energy storage for decentralized renewable
energy generation for the Dutch medium-voltage grid. Additionally, no method was available to simulate such an problem. So this was researched in this study. The study has included a suitable financial model, various
energy storage systems and operating strategies. Additionally, the interest of the developer of the DG plant and the DSO were included. For the developer the study has investigated the profitability of the system. The DSO is interested in minimizing the cost and resources of the connection of the hybrid DG system. From this the following research questions are formulated: Under what conditions can
energy storage for decentralized renewable
energy generation be economically feasible to mitigate connection scarcity on the medium-voltage grid? This was answered in three steps. Firstly, a model was built to accurately simulate
energy storage in a hybrid DG system. This model must satisfy all technical requirements and be applicable to the Dutch electricity markets. Secondly, the simulation model was used to examine the hybrid system design to optimally profit from the
storage system. From this it was concluded that a small
energy storage system adds relatively more value in
energy output and earnings than a large
storage system.…
Advisors/Committee Members: Herder, Paulien (mentor), Gerritse, Emma (graduation committee), de Jong, Wiebren (graduation committee), Verzijlbergh, Remco (graduation committee), Delft University of Technology (degree granting institution).
Subjects/Keywords: Energy Storage; Decentralized Energy Systems; Connection scarcity; Energy Storage Devices
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Hofman, D. (. (2020). Energy storage for decentralized renewable energy generation to mitigate connection scarcity on the MV-grid. (Masters Thesis). Delft University of Technology. Retrieved from http://resolver.tudelft.nl/uuid:de2e2daa-067c-4077-b110-87133d53584a
Chicago Manual of Style (16th Edition):
Hofman, Dick (author). “Energy storage for decentralized renewable energy generation to mitigate connection scarcity on the MV-grid.” 2020. Masters Thesis, Delft University of Technology. Accessed April 10, 2021.
http://resolver.tudelft.nl/uuid:de2e2daa-067c-4077-b110-87133d53584a.
MLA Handbook (7th Edition):
Hofman, Dick (author). “Energy storage for decentralized renewable energy generation to mitigate connection scarcity on the MV-grid.” 2020. Web. 10 Apr 2021.
Vancouver:
Hofman D(. Energy storage for decentralized renewable energy generation to mitigate connection scarcity on the MV-grid. [Internet] [Masters thesis]. Delft University of Technology; 2020. [cited 2021 Apr 10].
Available from: http://resolver.tudelft.nl/uuid:de2e2daa-067c-4077-b110-87133d53584a.
Council of Science Editors:
Hofman D(. Energy storage for decentralized renewable energy generation to mitigate connection scarcity on the MV-grid. [Masters Thesis]. Delft University of Technology; 2020. Available from: http://resolver.tudelft.nl/uuid:de2e2daa-067c-4077-b110-87133d53584a

University of California – Berkeley
20.
Xin, Siyuan.
Design, Analysis, and Testing of Large Scale Kinetic Energy Storage Systems.
Degree: Mechanical Engineering, 2015, University of California – Berkeley
URL: http://www.escholarship.org/uc/item/9xn418t5
► AbstractDesign, Analysis, and Testing of Large Capacity Kinetic Energy Storage SystemsbySiyuan XinDoctor of Philosophy in Engineering – Mechanical EngineeringUniversity of California, BerkeleyProfessor David Steigmann, ChairGlobal…
(more)
▼ AbstractDesign, Analysis, and Testing of Large Capacity Kinetic Energy Storage SystemsbySiyuan XinDoctor of Philosophy in Engineering – Mechanical EngineeringUniversity of California, BerkeleyProfessor David Steigmann, ChairGlobal warming, climate change and pollution caused by the traditional energy generation technologies have become some of the biggest threats in today’s world. And the need for more energy is ever increasing. Development of renewable energy, such as solar and wind, as well as distributed smart grids are needed to replace the old energy production methods. Governments have set goals of increasing the proportion of clean energy generation. One major limiting factor of the development of renewable energy is that these energy sources is not as reliable and as stable as the traditional power sources to meet the energy demand. This problem can only be effectively solved by the use of energy storage to store excess power produced by the renewable energy sources. Therefore, energy storage, especially large scale energy storage systems, will be the key factor for enabling renewable energy to become the primary sources of energy. Current energy storage technologies include batteries, flywheel, supercapacitors, pumped hydro, and so on. But due to the issues of capacity, efficiency, life cycles or costs of these current energy storage technologies, a large scale energy storage system that has low cost, long life cycles and high efficiency is yet to be developed to be integrated with renewable energy generation and smart grids. In this work, the design, analysis and tests of large scale flywheel energy storage systems are carried out. The flywheel energy storage system will feature a large steel rotor. Theoretical analysis of the stress distribution of the rotor is discussed to give a parametric view of the key elements in the design. Material testing such as tensile tests, fracture toughness tests, and fatigue crack propagation tests are conducted to characterize the behavior of the rotor material. Finite element method is used to analyze the stress-strain distribution of the rotor in order to optimize the shape of the rotor and determine the rotational speed. Also frequency analysis using finite element method gives the dynamic response of the rotor. Catastrophic failure of the rotor can cause big damages and need to be prevented from happening. And therefore, fracture mechanics is applied to analyze the safety margin and estimate the lifetime of the flywheel system. Post failure analysis is also discussed in case of rotor failure. Energy storage efficiency is a crucial factor in order for the flywheel energy storage system to be applicable. The rotor is kept in low vacuum pressure to minimize aerodynamic drag and improve energy storage efficiency. An analytical model of aerodynamic drag on the rotor is developed. Experimental measurements of drag power loss on a disc rotor inside a controlled vacuum chamber are compared to the predicted results of the analytical model. Design of sub-systems such as bearings…
Subjects/Keywords: Mechanical engineering; Energy; Energy Storage; Flywheel; Kinetic Energy Storage; Rotor
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Xin, S. (2015). Design, Analysis, and Testing of Large Scale Kinetic Energy Storage Systems. (Thesis). University of California – Berkeley. Retrieved from http://www.escholarship.org/uc/item/9xn418t5
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Xin, Siyuan. “Design, Analysis, and Testing of Large Scale Kinetic Energy Storage Systems.” 2015. Thesis, University of California – Berkeley. Accessed April 10, 2021.
http://www.escholarship.org/uc/item/9xn418t5.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Xin, Siyuan. “Design, Analysis, and Testing of Large Scale Kinetic Energy Storage Systems.” 2015. Web. 10 Apr 2021.
Vancouver:
Xin S. Design, Analysis, and Testing of Large Scale Kinetic Energy Storage Systems. [Internet] [Thesis]. University of California – Berkeley; 2015. [cited 2021 Apr 10].
Available from: http://www.escholarship.org/uc/item/9xn418t5.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Xin S. Design, Analysis, and Testing of Large Scale Kinetic Energy Storage Systems. [Thesis]. University of California – Berkeley; 2015. Available from: http://www.escholarship.org/uc/item/9xn418t5
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Ottawa
21.
Lefebvre, Dominique.
Thermal Energy Storage Using Adsorption Processes for Solar and Waste Heat Applications: Material Synthesis, Testing and Modeling
.
Degree: 2016, University of Ottawa
URL: http://hdl.handle.net/10393/34173
► As the worldwide energy demand continues to increase, scientists and engineers are faced with the increasingly difficult task of meeting these needs. Currently, the major…
(more)
▼ As the worldwide energy demand continues to increase, scientists and engineers are faced with the increasingly difficult task of meeting these needs. Currently, the major energy sources, consisting of oil, coal, and natural gas, are non-renewable, contribute to climate change, and are rapidly depleting. Renewable technology research has become a major focus to provide energy alternatives which are environmentally-friendly and economically competitive to sustain the future worldwide needs. Thermal energy storage using adsorption is a promising technology which can provide energy for heating and cooling applications using solar and waste heat sources. The current work aims to improve adsorption systems to provide higher energy outputs and therefore, more economical systems. New adsorbents and operating conditions were tested with the goal of storing the available energy more efficiently. A model was also developed to gain a better understanding of the adsorption system to improve this developing technology.
Subjects/Keywords: Thermal energy storage;
Adsorption
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Lefebvre, D. (2016). Thermal Energy Storage Using Adsorption Processes for Solar and Waste Heat Applications: Material Synthesis, Testing and Modeling
. (Thesis). University of Ottawa. Retrieved from http://hdl.handle.net/10393/34173
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Lefebvre, Dominique. “Thermal Energy Storage Using Adsorption Processes for Solar and Waste Heat Applications: Material Synthesis, Testing and Modeling
.” 2016. Thesis, University of Ottawa. Accessed April 10, 2021.
http://hdl.handle.net/10393/34173.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Lefebvre, Dominique. “Thermal Energy Storage Using Adsorption Processes for Solar and Waste Heat Applications: Material Synthesis, Testing and Modeling
.” 2016. Web. 10 Apr 2021.
Vancouver:
Lefebvre D. Thermal Energy Storage Using Adsorption Processes for Solar and Waste Heat Applications: Material Synthesis, Testing and Modeling
. [Internet] [Thesis]. University of Ottawa; 2016. [cited 2021 Apr 10].
Available from: http://hdl.handle.net/10393/34173.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Lefebvre D. Thermal Energy Storage Using Adsorption Processes for Solar and Waste Heat Applications: Material Synthesis, Testing and Modeling
. [Thesis]. University of Ottawa; 2016. Available from: http://hdl.handle.net/10393/34173
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Texas A&M University
22.
Shankar, Sandhya.
Thermal cycling effect on the nanoparticle distribution and specific heat of a carbonate eutectic with alumina nanoparticles.
Degree: MS, Mechanical Engineering, 2011, Texas A&M University
URL: http://hdl.handle.net/1969.1/ETD-TAMU-2011-05-9483
► The objective of this research was to measure the effect of thermal cycling on the nanoparticle distribution and specific heat of a nanocomposite material consisting…
(more)
▼ The objective of this research was to measure the effect of thermal cycling on the nanoparticle distribution and specific heat of a nanocomposite material consisting of a eutectic of lithium carbonate and potassium carbonate and 1% by mass alumina nanoparticles. The material was subjected to thermal cycling in a stainless steel tube using a temperature controlled furnace. After thermal cycling, the stainless steel tube was sectioned into three equal parts – top, middle and bottom. Composite material samples were taken from the central region and near the wall region of each section.
The specific heat of this material in the temperature range of 290°C-397°C was measured using the Modulated Differential Scanning Calorimeter (MDSC) method. The concentration of alumina nanoparticles in this material was measured using neutron activation analysis. The average specific heat of the uncycled material was found to be 1.37 J/g°C.The average specific heat of the thermally cycled material was between 1.7-2.1 J/g°C. It was found that the concentration of the nanoparticle varied along the height of the sample tube. The nanoparticles tended to settle towards the bottom of the tube with thermal cycling. There was also migration of nanoparticles towards the wall of the sample tube with thermal cycling. Despite these gross movements of nanoparticles, there was no significant change in the specific heat of the nanocomposite due to thermal cycling.
Advisors/Committee Members: Lalk, Thomas (advisor), Lau, Sai (advisor), Schuller, Michael (committee member).
Subjects/Keywords: Thermal energy storage; Specific heat
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Shankar, S. (2011). Thermal cycling effect on the nanoparticle distribution and specific heat of a carbonate eutectic with alumina nanoparticles. (Masters Thesis). Texas A&M University. Retrieved from http://hdl.handle.net/1969.1/ETD-TAMU-2011-05-9483
Chicago Manual of Style (16th Edition):
Shankar, Sandhya. “Thermal cycling effect on the nanoparticle distribution and specific heat of a carbonate eutectic with alumina nanoparticles.” 2011. Masters Thesis, Texas A&M University. Accessed April 10, 2021.
http://hdl.handle.net/1969.1/ETD-TAMU-2011-05-9483.
MLA Handbook (7th Edition):
Shankar, Sandhya. “Thermal cycling effect on the nanoparticle distribution and specific heat of a carbonate eutectic with alumina nanoparticles.” 2011. Web. 10 Apr 2021.
Vancouver:
Shankar S. Thermal cycling effect on the nanoparticle distribution and specific heat of a carbonate eutectic with alumina nanoparticles. [Internet] [Masters thesis]. Texas A&M University; 2011. [cited 2021 Apr 10].
Available from: http://hdl.handle.net/1969.1/ETD-TAMU-2011-05-9483.
Council of Science Editors:
Shankar S. Thermal cycling effect on the nanoparticle distribution and specific heat of a carbonate eutectic with alumina nanoparticles. [Masters Thesis]. Texas A&M University; 2011. Available from: http://hdl.handle.net/1969.1/ETD-TAMU-2011-05-9483

University of Illinois – Chicago
23.
Zhang, Chengji.
Study on Performance Enhancement of Lithium-Oxygen Batteries.
Degree: 2017, University of Illinois – Chicago
URL: http://hdl.handle.net/10027/22236
► The electrification of transportation is well-recognized as alternative strategies to minimize the dependence on fossil fuels and eventually address the effects on Climate change. Among…
(more)
▼ The electrification of transportation is well-recognized as alternative strategies to minimize the dependence on fossil fuels and eventually address the effects on Climate change. Among all strong candidate for the next generation
energy storage technology, the lithium-air battery has attracted exclusively attention in terms of its high theoretical
energy density, which is even comparable to gasoline combustion. And as a result, makes it promise for powering the fully battery powered Electric Vehicles (EVs). However, the high overpotential while redox reaction happens between charge and discharge is the enormous challenges obstructed the way to success. On the other hand, electrolyte and electrode decomposition was almost inevitable as the battery keeps cycling and eventually leads to cathode clogging which is in responsible for poor
energy efficiency as well as limited cyclability after testing.
In this research, in order to achieve highly desirable battery developments, we first introduce Ir3Li, a lithium intermetallic, as new catalyst material that helps stabilize the formation of LiO2, a meta-stable intermediate product instead of the commonly reported Li2O2 after discharge, and as a result mechanically reducing the
energy barrier. In addition, the way to fabricate improved carbon black cathode and other performance perfection technique were also investigated. Different characterization techniques including SEM, Raman, and titration will be employed to investigate the morphology as well as the distribution of redox products. Along with battery cycling test, which helps better understand the two-step mechanism of the Li-Oxygen battery system.
With the help of all these characterization and justification, an improved Li-O2 cell will be presented with an
energy efficiency of 70% for more than 70 cycles with only moderate capacity loss. At the same time, the discharge products are believed to be Lithium superoxide as wanted instead of Lithium peroxide. As a result, the improved Li-O2 battery has been successfully explored that could keep running continuously for more than eight weeks.
Advisors/Committee Members: Indacochea, Ernesto J. (advisor), Wang, Hsien-Hau (advisor), McNallan, Michael J. (committee member), Indacochea, Ernesto J. (chair).
Subjects/Keywords: energy storage; Li-O2 battery
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Zhang, C. (2017). Study on Performance Enhancement of Lithium-Oxygen Batteries. (Thesis). University of Illinois – Chicago. Retrieved from http://hdl.handle.net/10027/22236
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Zhang, Chengji. “Study on Performance Enhancement of Lithium-Oxygen Batteries.” 2017. Thesis, University of Illinois – Chicago. Accessed April 10, 2021.
http://hdl.handle.net/10027/22236.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Zhang, Chengji. “Study on Performance Enhancement of Lithium-Oxygen Batteries.” 2017. Web. 10 Apr 2021.
Vancouver:
Zhang C. Study on Performance Enhancement of Lithium-Oxygen Batteries. [Internet] [Thesis]. University of Illinois – Chicago; 2017. [cited 2021 Apr 10].
Available from: http://hdl.handle.net/10027/22236.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Zhang C. Study on Performance Enhancement of Lithium-Oxygen Batteries. [Thesis]. University of Illinois – Chicago; 2017. Available from: http://hdl.handle.net/10027/22236
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Waterloo
24.
Park, Sunghyun.
Integrating Compressed Air Energy Storage with Borehole Thermal Energy Storage: A Feasibility Study.
Degree: 2020, University of Waterloo
URL: http://hdl.handle.net/10012/16574
► There is an increasing number of renewable energy projects deployed to supply electrical energy, thermal energy, or both. The trend is mainly driven by the…
(more)
▼ There is an increasing number of renewable energy projects deployed to supply electrical energy, thermal energy, or both. The trend is mainly driven by the continuing growth in global energy demand and effort to deviate from the emission-intensive hydrocarbon society. Despite the relative advantages of renewables, compared to fossil fuels, their intermittent availability often imposes limitations on deployment, as it can cause a supply-demand imbalance issue. For overcoming the challenge, Energy Storage Systems (ESS) are integrated into renewable energy systems. This thesis focuses on integrating existing ESS technologies, Compressed Air Energy Storage (CAES) and Borehole Thermal Energy Storage (BTES). In this thesis, the integrated ESS system is referred to as an integrated CAES-BTES system. The integrated system stores excess electricity from renewable sources in CAES, and the heat of compression is stored in BTES. The thermal energy can be transferred to the expansion side of the CAES or outside of the system.
The objective of this thesis is to conduct a first-order feasibility study on the design of the integrated CAES-BTES system. For the study, several existing configurations of CAES and BTES and their design methods outlined in the literature are reviewed first. A conceptual design of the integrated system is proposed, based on the literature review. From the literature review, key parameters that affect the overall performance of the ESS technologies are also identified. Then, a computer model of the integrated CAES-BTES system is produced with the Matlab®, which allows prompt thermodynamics simulation and sizing of the system, based on user-defined parameters, such as the energy demand and operational/physical constraints. A parametric study is conducted using the model to analyze the system's performance under different operating conditions. The integrated system's economic feasibility is determined relatively by comparing its Levelized Cost of Energy Storage (LCOS) with the other ESS technologies. A financial model is created using Microsoft Excel/VBA, which calculates the LCOS based on the technical and financial input parameters from the Matlab® model and existing literature.
An integrated CAES-BTES with a power output of 1.5 MW that operates in a continuous daily cycle of 8 hours of discharge is considered in the parametric study. Based on the scenarios considered for the parametric study, the CAES system can achieve up to 60% and 40% round-trip efficiency for Adiabatic CAES (A-CAES) and Diabatic CAES (D-CAES), within the range of parameters. The results have demonstrated the more notable influence of the expander inlet temperature and the number of compression expansion stages on the system's efficiency. For the BTES side of the integrated system, the thermal properties of the storage medium and grout materials have shown significant impacts on the configurations.
The LCOS is calculated for the integrated CAES-BTES system and compared to conventional D-CAES and A-CAES systems. Rated storage…
Subjects/Keywords: Borehole Thermal Energy Storage; BTES; Compressed Air Energy Storage; CAES; Energy Storage System; ESS; LCOS; Levelized Cost of Energy Storage
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
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APA (6th Edition):
Park, S. (2020). Integrating Compressed Air Energy Storage with Borehole Thermal Energy Storage: A Feasibility Study. (Thesis). University of Waterloo. Retrieved from http://hdl.handle.net/10012/16574
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Park, Sunghyun. “Integrating Compressed Air Energy Storage with Borehole Thermal Energy Storage: A Feasibility Study.” 2020. Thesis, University of Waterloo. Accessed April 10, 2021.
http://hdl.handle.net/10012/16574.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Park, Sunghyun. “Integrating Compressed Air Energy Storage with Borehole Thermal Energy Storage: A Feasibility Study.” 2020. Web. 10 Apr 2021.
Vancouver:
Park S. Integrating Compressed Air Energy Storage with Borehole Thermal Energy Storage: A Feasibility Study. [Internet] [Thesis]. University of Waterloo; 2020. [cited 2021 Apr 10].
Available from: http://hdl.handle.net/10012/16574.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Park S. Integrating Compressed Air Energy Storage with Borehole Thermal Energy Storage: A Feasibility Study. [Thesis]. University of Waterloo; 2020. Available from: http://hdl.handle.net/10012/16574
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Ontario Institute of Technology
25.
Hosseini, Mehdi.
Investigation of energy storage options for sustainable energy systems.
Degree: 2013, University of Ontario Institute of Technology
URL: http://hdl.handle.net/10155/346
► Determination of the possible energy storage options for a specific source of energy requires a thorough analysis from the points of energy, exergy, and exergoeconomics.…
(more)
▼ Determination of the possible
energy storage options for a specific source of
energy requires a thorough analysis from the points of
energy, exergy, and
exergoeconomics. The main objective of this thesis is to investigate
energy storage
options for sustainable
energy systems. A technology description and illustration of
concerns regarding each system is presented. Moreover, the possibility of
implementing each option into different sources of
energy is investigated. Thus,
integrated
energy systems are developed, utilizing
energy storage options with the aim
of achieving more efficient systems.
Energy and exergy analyses are performed for three novel, integrated renewable
energy-based systems.
Energy storage methods investigated here include hydrogen
storage, thermal
energy storage, compressed air
energy storage, and battery. Solar,
wind, and biomass are the
energy sources considered for the integrated systems. In
this research, a discussion on various
energy storage systems is presented, and the
potential of each
storage option in the current and future
energy market is studied.
Each of the integrated systems is described and its operating strategy is presented.
The components of the integrated systems are first modeled to obtain their operating
characteristics. The
energy, exergy, and exergoeconomic equations are applied to the
components to calculate the rates of
energy and exergy flows. The efficiencies are
subsequently calculated. The results of
energy and exergy analyses are combined with
exergoeconomic equations to report the unit exergy cost of flows in the components.
System 1 consists of a PV system, a water electrolyser and a fuel cell to generate
electricity for a house. Hydrogen and thermal
energy storage are considered as the
storage options. The results show that the capacities of the components depend on
weather data and electric power demand. In System 1, the PV electric power output
exceeds demand during months with high-solar irradiance. The results of a case study
based on the weather data in Toronto, Canada, and the electricity demand pattern of a
Canadian house (5.74 kW maximum demand) are presented. The photovoltaic system
capacity and the electrolyser nominal hydrogen production rate are 37.17 kW and 4.5
kg/day, respectively. The economic investigation of the hybrid system reports an
average cost of electricity of 0.84 $/kWh based on 25 years of operation. The optimal nominal capacity of the fuel cell is found to be 1.5 kW, according to the optimization
results. The optimal exergy efficiency varies from 9.91 to 9.94%.
System 2 consists of a wind park, a PV-fuel cell and a biomass-fuel cell-gas
turbine system. This integrated renewable
energy-based system is developed for
baseload power generation and utilizes wind, solar and biomass
energy resources. For
a 64 bar compressed air
storage system, and a 36 bar gas turbine inlet air pressure,
356 wind turbines are required. The lower the pressure difference between the
compressed air in the cavern and the gas…
Advisors/Committee Members: Dincer, Ibrahim.
Subjects/Keywords: Renewable energy; Storage; Solar; Exergy
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Hosseini, M. (2013). Investigation of energy storage options for sustainable energy systems. (Thesis). University of Ontario Institute of Technology. Retrieved from http://hdl.handle.net/10155/346
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Hosseini, Mehdi. “Investigation of energy storage options for sustainable energy systems.” 2013. Thesis, University of Ontario Institute of Technology. Accessed April 10, 2021.
http://hdl.handle.net/10155/346.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Hosseini, Mehdi. “Investigation of energy storage options for sustainable energy systems.” 2013. Web. 10 Apr 2021.
Vancouver:
Hosseini M. Investigation of energy storage options for sustainable energy systems. [Internet] [Thesis]. University of Ontario Institute of Technology; 2013. [cited 2021 Apr 10].
Available from: http://hdl.handle.net/10155/346.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Hosseini M. Investigation of energy storage options for sustainable energy systems. [Thesis]. University of Ontario Institute of Technology; 2013. Available from: http://hdl.handle.net/10155/346
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Tartu University
26.
Pajusalu, Mihkel.
Localized Photosynthetic Excitons
.
Degree: 2014, Tartu University
URL: http://hdl.handle.net/10062/43646
► Peaaegu kogu inimkonna poolt tarbitav toit ja näiteks ka fossiilsed kütused on toodetud elusorganismide poolt kinnipüütud päikesevalguse abil. Elusloodus on suutnud sellel viisil päikeseenergiat koguda…
(more)
▼ Peaaegu kogu inimkonna poolt tarbitav toit ja näiteks ka fossiilsed kütused on toodetud elusorganismide poolt kinnipüütud päikesevalguse abil. Elusloodus on suutnud sellel viisil päikeseenergiat koguda juba miljardeid aastaid ja väga suures mastaabis, saades samas hakkama väga väheste vahenditega. See kõik on võimalik tänu elusorgamismide võimele paigutada aatomeid väga täpselt mõnenanomeetrise suurusega struktuurideks.
Purpurbakterid on ühed vanimad organismid Maal, kes on võimelised päikesevalgust koguma ja enda toitmiseks kasutama. Bakterid on miljardite aastate jooksul suutnud välja töötada väga keerukaid energiakogumise meetodeid, mida saaks ka inimtehnoloogias kasutada. Nende süsteemide mõistmise keerukus tuleneb nende toimimise aluseks olevast kvantmehaanikast, mis tavaliselt avaldub äärmiselt korrapärastes tingimustes (nagu pooljuhtkristallides) väga madalatel temperatuuridel (nagu heeliumi keemistemperatuuril -270 °C juures).
Selles töös proovisime edendada arusaamu purpurbakterite valgust koguvate antennisüsteemide tööpõhimõtete kohta. Me suutsime tõestada, et need väikesed nanostruktuurid suudavad footoneid kinni püüda ja neid kvaasiosakesteks (eksitonideks) muundada. Neid eksitone saab siis transportida ja keemilise energiana salvestada. Tuleb välja, et see on siiski võimalik, kuigi tingimused eluslooduses on väga kaugel tingimustest, mis valitsevad pooljuhtkristallides absoluutse nulltemperatuuri lähedal. Uurimus põhines optilise spektroskoopia ja kvantmehaanilise modelleerimise ühendamisel. Koostatud mudel võimaldab ka seletada erinevusi üksikute valgust koguvate komplekside vahel, mis varem on põhjustanud eksperimentaalsete andmete väärtõlgendamist. Kokkuvõttes jõudsime paremale arusaamale nende komplekside tööst ja loodetavasti saab tulevikus nende tööpõhimõtteid rakendada ka inimkonna energiavajaduse rahuldamisel.; Virtually all of the food consumed by humans and, for example, fossil fuels, have been produced by capturing sunlight and storing it as chemical energy in the process of photosynthesis. Living nature has been able to collect solar energy this way for billions of years and in very large scales, managing at the same time to do this with very common chemical elements. This is possible thanks to living nature’s ability to place atoms into complex arrangements on the scale of a few nanometres.
Purple bacteria are possibly the oldest organisms on the Earth capable of harvesting the sunlight to feed themselves. During billions of years, bacteria have developed very complex methods for energy capture that could also prove useful in human technology. The complexity in understanding these systems lies in the fact that their operation is based on quantum mechanical effects, which ordinarily exhibit in highly regular systems (such as semiconductor crystals) at extremely low temperatures, such as at the boiling point of liquid helium (-270 °C).
In this work, we tried to expand our understanding of the mechanisms behind the functioning of the light-harvesting complexes of purple bacteria. We managed…
Subjects/Keywords: eksitonid;
energiasalvestus;
excitons;
energy storage
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Pajusalu, M. (2014). Localized Photosynthetic Excitons
. (Thesis). Tartu University. Retrieved from http://hdl.handle.net/10062/43646
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Pajusalu, Mihkel. “Localized Photosynthetic Excitons
.” 2014. Thesis, Tartu University. Accessed April 10, 2021.
http://hdl.handle.net/10062/43646.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Pajusalu, Mihkel. “Localized Photosynthetic Excitons
.” 2014. Web. 10 Apr 2021.
Vancouver:
Pajusalu M. Localized Photosynthetic Excitons
. [Internet] [Thesis]. Tartu University; 2014. [cited 2021 Apr 10].
Available from: http://hdl.handle.net/10062/43646.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Pajusalu M. Localized Photosynthetic Excitons
. [Thesis]. Tartu University; 2014. Available from: http://hdl.handle.net/10062/43646
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Hong Kong
27.
王中伟.
On some aspects of
frequency regulation market design and analysis.
Degree: 2017, University of Hong Kong
URL: http://hdl.handle.net/10722/241405
► To maintain the real-time balance of power generation and load, it is necessary to procure frequency regulation services in the power system operation. During past…
(more)
▼ To maintain the real-time balance of power
generation and load, it is necessary to procure frequency
regulation services in the power system operation. During past two
decades, the growing integration of intermittent renewable energy
sources has brought more uncertainties to grid operation, enhancing
the need for high-performance regulation services. Energy storage
systems have extensive applications in today’s power system
operation. Among all types of energy storage systems,
energy-limited and fast-responding storage devices including
battery energy storage, flywheel energy storage, superconducting
magnetic energy storage, and super-capacitor energy storage can
provide high-performance regulation services due to their fast
ramping capability and controllability. However, traditionally,
regulated systems do not distinguish high-performance frequency
from the rest. There is a lack of incentives for fast-ramping units
to provide regulation Therefore, it is necessary to adjust the
frequency regulation market design to encourage devices/units with
better regulation performance to participate in the market.
A
frequency regulation market model considering regulation
performance is proposed in this thesis. In the proposed market,
both regulation capacity constraints and regulation mileage
constraints are satisfied. Fast-ramping regulation units have
higher priorities to be cleared in providing regulation services.
Market clearing prices are derived with Lagrange relaxation. The
analysis of the components of market clearing prices accurately
indicates the relationship between regulation capacity and mileage.
In response to the performance-based regulation market model, an
adjusted AGC allocation method is proposed. The numerical results
show that the proposed market model could give incentives to
fast-ramping storage units to provide regulation and these
resources could be deployed appropriately in real-time operation
with the modified AGC allocation method.
Next, to investigate the
relationship between the prices of energy and regulation products,
energy and performance-based regulation are obtained simultaneously
in an OPF-based market model considering the participation of
energy storage units. In the proposed market model, the generation
schedule of thermal units, charging and discharging status of
energy storage units and the commitment of regulation resources are
determined. The proposed market model is tested to verify the
validity. The numerical results demonstrate that energy storage
devices could be used to provide both regulation and energy.
With
the implementation of a performance based regulation market,
fast-ramping energy storage units may become price-makers and
manipulate market clearing prices by strategically bidding.
Therefore, a framework to analyze the market power issues from the
perspective of the system operator is proposed. The market power
held by each regulation resource is quantified. Regulation market
power indices are developed to evaluate the market power held by
individual regulation…
Subjects/Keywords: Energy
storage
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
王中伟. (2017). On some aspects of
frequency regulation market design and analysis. (Thesis). University of Hong Kong. Retrieved from http://hdl.handle.net/10722/241405
Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
王中伟. “On some aspects of
frequency regulation market design and analysis.” 2017. Thesis, University of Hong Kong. Accessed April 10, 2021.
http://hdl.handle.net/10722/241405.
Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
王中伟. “On some aspects of
frequency regulation market design and analysis.” 2017. Web. 10 Apr 2021.
Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete
Vancouver:
王中伟. On some aspects of
frequency regulation market design and analysis. [Internet] [Thesis]. University of Hong Kong; 2017. [cited 2021 Apr 10].
Available from: http://hdl.handle.net/10722/241405.
Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
王中伟. On some aspects of
frequency regulation market design and analysis. [Thesis]. University of Hong Kong; 2017. Available from: http://hdl.handle.net/10722/241405
Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete
Not specified: Masters Thesis or Doctoral Dissertation

University of North Texas
28.
Hasib, A. M. M. Golam.
Effect of Dispersed Particles and Branching on the Performance of a Medium Temperature Thermal Energy Storage System.
Degree: 2013, University of North Texas
URL: https://digital.library.unt.edu/ark:/67531/metadc499995/
► The main objective of my thesis is to develop a numerical model for small-scale thermal energy storage system and to see the effect of dispersing…
(more)
▼ The main objective of my thesis is to develop a numerical model for small-scale thermal
energy storage system and to see the effect of dispersing nano-particles and using fractal-like branching heat exchanger in phase change material for our proposed thermal
energy storage system. The associated research problems investigated for phase change material (PCM) are the low thermal conductivity and low rate of heat transfer from heat transfer fluid to PCM in thermal
energy storage system. In this study an intensive study is carried out to find the best material for thermal
storage and later on as a high conductive nano-particle graphite is used to enhance the effective thermal conductivity of the mixed materials. As a thermal
storage material molten solar Salt (60% NaNO3+40%KNO3) has been selected, after that detailed numerical modeling of the proposed design has been done using MATLAB algorithm and following the fixed grid enthalpy method. The model is based on the numerical computation of 1-D finite difference method using explicit scheme. The second part of the study is based on enhancing the heat transfer performance by introducing the concept of fractal network or branching heat exchanger. Results from the numerical computation have been utilized for the comparison between a conventional heating system (with a simple single tube as a heat exchanger) and a passive PCM thermal
energy storage system with branching heat exchanger using NTU-effectiveness method and charging time calculation. The comparison results show a significant amount improvement using branching network and mixing nano-particle in terms of heat transfer (13.5% increase in effectiveness of branching level-02 heat exchangers from the conventional one ), thermal conductivity (increased 73.6% with 20% graphite nano-particle mix with solid PCM), charging time (57% decrease of charging time for the effect of both the dispersion of Graphite nano-particle and branching heat exchange) and pressure drop (36% decrease in level-02 branching). The results of this study prove that the proposed medium temperature TES system coupled with solar ORC can be the stepping-stone for
energy efficient and sustainable future in small-scale/building level as the system proves to be better in terms of enhanced heat transfer, increased thermal conductivity and reduced pumping power and overall sustainability.
Advisors/Committee Members: Tao, Yong, Burzo, Mihai, Rayegan, Rambod.
Subjects/Keywords: Energy storage; branching; dispersed particles
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University of Limerick
29.
Connolly, David.
The integration of fluctuating renewable energy using energy storage.
Degree: 2011, University of Limerick
URL: http://hdl.handle.net/10344/1695
► peer-reviewed
Energy storage is often portrayed as an ideal solution for the integration of fluctuating renewable energy (RE) due to the flexibility it creates. However,…
(more)
▼ peer-reviewed
Energy storage is often portrayed as an ideal solution for the integration of fluctuating renewable energy (RE) due to the flexibility it creates. However, there is uncertainty surrounding energy storage in terms of the technologies that currently exist, the additional RE it enables, and its role in modern electricity markets. These uncertainties have hampered the
deployment of large‐scale energy storage and hence, this research examined these concerns.
This research began by identifying the most feasible energy storage technology available for the integration of fluctuating RE, specifically for Ireland. Due to its technical maturity and large‐scale capacities, pumped hydroelectric energy storage (PHES) was deemed the most
viable technology, but the literature outlined a lack of suitable sites for its construction.
Therefore, a new software tool was developed in this study to search for suitable PHES sites, which was then applied to two counties in Ireland. The results indicate that these two counties alone have over 15 sites suitable for freshwater PHES, which in some cases could be twice as large as Ireland’s only existing PHES facility. Hence, the next stage of this research assessed the benefits of constructing large‐scale energy storage in Ireland. To do this, a model of the Irish energy system was needed and so a review of 68 existing energy tools was completed. From this review, EnergyPLAN was chosen and subsequently it was used to simulate various capacities of wind power and PHES on the 2020 Irish energy system. The results reveal that PHES could technically enable RE to provide 100% of Ireland’s electricity if very large capacities were used under certain operating strategies. However, under conventional economic assumptions this would cost more than the reference 2020 scenario. In addition, alternatives were identified which could offer similar savings as PHES, while also being more robust to changes in fuel prices, interest rates, and annual wind generation, but they did consume more
fossil fuels. Finally, a new practical operating strategy was created for energy storage while operating in a wholesale electricity market. Results indicate that approximately 97% of the maximum feasible profits are achievable. However, the annual profit could vary by more than 50% and hence, energy storage will need more profit stability to become feasible for investors.
To summarise, this work concludes that PHES is the most promising energy storage technology for integrating fluctuating RE. More sites do exist than previously expected and constructing them will enable higher penetrations of fluctuating RE. However, based on predicted 2020 costs, using PHES is more expensive than the reference scenario and alternatives could be more cost‐effective, but this requires further analysis. Finally, if energy storage is required, electricity markets will need to create more certainty surrounding their potential profits.
Advisors/Committee Members: Leahy, Martin J..
Subjects/Keywords: energy storage; Ireland; hydroelectric; electricity
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Connolly, D. (2011). The integration of fluctuating renewable energy using energy storage. (Thesis). University of Limerick. Retrieved from http://hdl.handle.net/10344/1695
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Connolly, David. “The integration of fluctuating renewable energy using energy storage.” 2011. Thesis, University of Limerick. Accessed April 10, 2021.
http://hdl.handle.net/10344/1695.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Connolly, David. “The integration of fluctuating renewable energy using energy storage.” 2011. Web. 10 Apr 2021.
Vancouver:
Connolly D. The integration of fluctuating renewable energy using energy storage. [Internet] [Thesis]. University of Limerick; 2011. [cited 2021 Apr 10].
Available from: http://hdl.handle.net/10344/1695.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Connolly D. The integration of fluctuating renewable energy using energy storage. [Thesis]. University of Limerick; 2011. Available from: http://hdl.handle.net/10344/1695
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Massey University
30.
Mortensen, Kelsey Leigh.
Development of a new cathode for aqueous rechargeable batteries.
Degree: PhD, Chemistry, 2015, Massey University
URL: http://hdl.handle.net/10179/6976
► The demand for low/cost energy storage is a current issue. Existing batteries are unable to meet this constraint due to the high raw material prices,…
(more)
▼ The demand for low/cost energy storage is a current issue. Existing batteries are
unable to meet this constraint due to the high raw material prices, in particular
the metal content. The risk of fluctuating metal prices and future availability will
not meet the market demand and therefore alternative materials need to be
considered.
The focus of this project was to develop a non/metal based battery electrode
specifically for stationary battery systems. This study presents fundamental
concepts required to form a rechargeable electrochemical storage device
utilising hydrogen peroxide as the electroactive species. This involved two key
aspects: immobilisation of hydrogen peroxide in order to prevent self/discharge
and catalytic regeneration of hydrogen peroxide from hydroxide ions. Although
the construction of the device was not within the scope of this project, the
chemical and electrochemical analysis of potential compounds were evaluated at
a molecular level. In particular, the synthesis and molecular behaviour of a urea/
based ’binder‘ that will immobilise hydrogen peroxide, and an oxoammonium
’catalyst‘ to reform hydrogen peroxide during recharge of the battery.
Additionally, the attachment of these compounds to a surface was also
evaluated.
Analysis of the interactions between substituted ureas (‘binder’) and hydrogen
peroxide proved challenging. Although these findings suggest that adduct
formation is occurring, the methods undertaken were not able to determine the
equilibrium constant or strength of binding. They did however give an indication
of the quantity of hydrogen peroxide in the synthesised adducts and this
methodology can be applied to the range of hydrogen peroxide adducts.
Additionally, functionalisation of surfaces with a diazonium/containing
substituted urea was achieved and is a viable method for attaching the ‘binder’
to the electrode substrate material.
The second key step is to incorporate a rechargeable aspect to the battery
system. An oxoammonium cation was proposed to act as a ‘catalyst’ to replenish
H2O2 during charging. Details regarding the synthetic methodology for synthesis
of nitroxide/containing compounds, incorporating diazonium functionalities for
attachment to a surface, were obtained. Of particular interest was the amido/
TEMPO structure that was electrochemically attached to a carbon surface
electrode. Evaluation of its ability to form H2O2 was achieved using a
bi/potentiostat where a current density of 0.21 A m/2 was observed. This novel
idea shows promise and demonstrates the ability for the catalyst to replenish
H2O2 in an aqueous battery system.
Subjects/Keywords: Batteries;
Energy storage;
Battery design
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Mortensen, K. L. (2015). Development of a new cathode for aqueous rechargeable batteries. (Doctoral Dissertation). Massey University. Retrieved from http://hdl.handle.net/10179/6976
Chicago Manual of Style (16th Edition):
Mortensen, Kelsey Leigh. “Development of a new cathode for aqueous rechargeable batteries.” 2015. Doctoral Dissertation, Massey University. Accessed April 10, 2021.
http://hdl.handle.net/10179/6976.
MLA Handbook (7th Edition):
Mortensen, Kelsey Leigh. “Development of a new cathode for aqueous rechargeable batteries.” 2015. Web. 10 Apr 2021.
Vancouver:
Mortensen KL. Development of a new cathode for aqueous rechargeable batteries. [Internet] [Doctoral dissertation]. Massey University; 2015. [cited 2021 Apr 10].
Available from: http://hdl.handle.net/10179/6976.
Council of Science Editors:
Mortensen KL. Development of a new cathode for aqueous rechargeable batteries. [Doctoral Dissertation]. Massey University; 2015. Available from: http://hdl.handle.net/10179/6976
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