subject:(compression ignition engines)

Texas A&M University

1. Kroeger, Timothy Herbert. Reducing the Emissions and Efficiency Penalties of Low Temperature Combustion through Low Heat Rejection Operation.

Degree: MS, Mechanical Engineering, 2017, Texas A&M University

URL: http://hdl.handle.net/1969.1/173211

► Low temperature combustion (LTC) is popular among diesel engine researchers because it dramatically reduces NOx and smoke emissions. However, LTC is limited by increased CO… (more)

Subjects/Keywords: IC engines; diesel engines; compression ignition; low temperature combustion; advanced combustion; low heat rejection engines

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APA (6^th Edition):

Kroeger, T. H. (2017). Reducing the Emissions and Efficiency Penalties of Low Temperature Combustion through Low Heat Rejection Operation. (Masters Thesis). Texas A&M University. Retrieved from http://hdl.handle.net/1969.1/173211

Chicago Manual of Style (16^th Edition):

Kroeger, Timothy Herbert. “Reducing the Emissions and Efficiency Penalties of Low Temperature Combustion through Low Heat Rejection Operation.” 2017. Masters Thesis, Texas A&M University. Accessed February 27, 2021. http://hdl.handle.net/1969.1/173211.

MLA Handbook (7^th Edition):

Kroeger, Timothy Herbert. “Reducing the Emissions and Efficiency Penalties of Low Temperature Combustion through Low Heat Rejection Operation.” 2017. Web. 27 Feb 2021.

Vancouver:

Kroeger TH. Reducing the Emissions and Efficiency Penalties of Low Temperature Combustion through Low Heat Rejection Operation. [Internet] [Masters thesis]. Texas A&M University; 2017. [cited 2021 Feb 27]. Available from: http://hdl.handle.net/1969.1/173211.

Council of Science Editors:

Kroeger TH. Reducing the Emissions and Efficiency Penalties of Low Temperature Combustion through Low Heat Rejection Operation. [Masters Thesis]. Texas A&M University; 2017. Available from: http://hdl.handle.net/1969.1/173211

University of KwaZulu-Natal

2. Awogbemi, Omojola. Numerical and experimental investigations of optimal fatty acid methyl ester hybrid for enhanced engine performance and emission mitigation in the conventional compression ignition strategy.

Degree: 2020, University of KwaZulu-Natal

URL: https://researchspace.ukzn.ac.za/handle/10413/19090

► The utilization of petroleum-based diesel fuel to power compression ignition (CI) engines has been hampered by inefficient combustion process resulting in unsatisfactory engine performance and… (more)

Subjects/Keywords: FAME yield.; Biodiesel.; Engine performace.; Compression ignition engines.; Vegetable oil.

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APA (6^th Edition):

Awogbemi, O. (2020). Numerical and experimental investigations of optimal fatty acid methyl ester hybrid for enhanced engine performance and emission mitigation in the conventional compression ignition strategy. (Thesis). University of KwaZulu-Natal. Retrieved from https://researchspace.ukzn.ac.za/handle/10413/19090

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Awogbemi, Omojola. “Numerical and experimental investigations of optimal fatty acid methyl ester hybrid for enhanced engine performance and emission mitigation in the conventional compression ignition strategy.” 2020. Thesis, University of KwaZulu-Natal. Accessed February 27, 2021. https://researchspace.ukzn.ac.za/handle/10413/19090.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Awogbemi, Omojola. “Numerical and experimental investigations of optimal fatty acid methyl ester hybrid for enhanced engine performance and emission mitigation in the conventional compression ignition strategy.” 2020. Web. 27 Feb 2021.

Vancouver:

Awogbemi O. Numerical and experimental investigations of optimal fatty acid methyl ester hybrid for enhanced engine performance and emission mitigation in the conventional compression ignition strategy. [Internet] [Thesis]. University of KwaZulu-Natal; 2020. [cited 2021 Feb 27]. Available from: https://researchspace.ukzn.ac.za/handle/10413/19090.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Awogbemi O. Numerical and experimental investigations of optimal fatty acid methyl ester hybrid for enhanced engine performance and emission mitigation in the conventional compression ignition strategy. [Thesis]. University of KwaZulu-Natal; 2020. Available from: https://researchspace.ukzn.ac.za/handle/10413/19090

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Stellenbosch University

3. Grobbelaar, Eben. The development of a small diesel engine test bench employing an electric dynamometer.

Degree: MEng, Mechanical and Mechatronic Engineering, 2017, Stellenbosch University

URL: http://hdl.handle.net/10019.1/101207

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ENGLISH ABSTRACT: Global efforts to combat climate change, reduce greenhouse gas emissions and increase energy security has led to renewed interest in the use of… (more)

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ENGLISH ABSTRACT: Global efforts to combat climate change, reduce greenhouse gas emissions and increase energy security has led to renewed interest in the use of biofuels as an alternative to fossil fuels. Therefore, it has become increasingly important to understand the effects that the use of biofuel has on the performance and emissions of internal combustion engines. The subject of this report is the development of a small diesel engine test bench employing an electric dynamometer. The purpose of the project is to establish an engine testing platform which can be used to test small quantities of biofuel, as well as to expand the testing capabilities of the Biofuel Test Facility at Stellenbosch University. In this report, a review of the literature surrounding various aspects of engine performance testing and engine indicating testing is presented. In addition, literature research regarding the different types of dynamometers available is also presented. A thorough evaluation of the various dynamometer options is performed and a suitable electric dynamometer system is selected for the development of the test bench. Further aspects surrounding the development of the test bench covered in this report include integrating the dynamometer with a small test bench employing a single-cylinder, compression-ignition engine, designing a driveshaft to couple the dynamometer to the test engine, as well as instrumenting the test bench. In addition, this report also details the instrumentation of the test engine with a fibre-optic pressure transducer to measure in-cylinder pressure data, as well as the development of software which is used to measure and record all engine indicating data. The obtained engine indicating data is then used to construct a zero-dimensional, single-zone heat release model. Calibration of the dynamometer system is performed and it is concluded that the dynamometer’s signal output exhibits excellent repeatability and displays very little hysteresis. Engine tests are also performed during which it is found that the developed test bench produces accurate and repeatable results, both during engine performance testing and engine indicating testing. It is also concluded that the test setup is sensitive enough to detect small changes in engine performance and engine particulate emissions when switching from petroleum diesel to B10 biodiesel.

AFRIKAANSE OPSOMMING: Globale pogings om klimaatsverandering te bestry, vrystelling van kweekhuisgasse te verminder en energie sekuriteit te verhoog, het gelei tot hernude belangstelling in die gebruik van biobrandstowwe as 'n alternatief vir fossielbrandstowwe. Gevolglik het dit al hoe belangriker geword om die effek wat die gebruik van biobrandstof op die werkverrigting en uitlaatgasse van binnebrandenjins het te verstaan. Die onderwerp van hierdie verslag is die ontwikkeling van 'n klein dieselenjin toetsbank wat gebruik maak van 'n elektriese enjin rem. Die doel van hierdie projek is om 'n enjin toets platform te ontwikkel wat gebruik kan word om klein hoeveelhede…

Advisors/Committee Members: Haines, Richard Walter, Stellenbosch University. Faculty of Engineering. Dept. of Mechanical and Mechatronic Engineering..

Subjects/Keywords: Compression ignition engines; Electric dynamometer; Biodiesel fuels; Greenhouse gases; UCTD

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APA (6^th Edition):

Grobbelaar, E. (2017). The development of a small diesel engine test bench employing an electric dynamometer. (Thesis). Stellenbosch University. Retrieved from http://hdl.handle.net/10019.1/101207

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Grobbelaar, Eben. “The development of a small diesel engine test bench employing an electric dynamometer.” 2017. Thesis, Stellenbosch University. Accessed February 27, 2021. http://hdl.handle.net/10019.1/101207.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Grobbelaar, Eben. “The development of a small diesel engine test bench employing an electric dynamometer.” 2017. Web. 27 Feb 2021.

Vancouver:

Grobbelaar E. The development of a small diesel engine test bench employing an electric dynamometer. [Internet] [Thesis]. Stellenbosch University; 2017. [cited 2021 Feb 27]. Available from: http://hdl.handle.net/10019.1/101207.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Grobbelaar E. The development of a small diesel engine test bench employing an electric dynamometer. [Thesis]. Stellenbosch University; 2017. Available from: http://hdl.handle.net/10019.1/101207

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Toronto

4. Sookrah, Vijai Christopher. Reduced Pressure Distillation of Wood Derived Pyrolysis Liquid Biofuels and their Emulsion with Diesel Fuel in a Compression Ignition, Indirect Injection Engine.

Degree: 2016, University of Toronto

URL: http://hdl.handle.net/1807/72795

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Reduced pressure distillation was used to reduce water content of crude WPLs from 24.81 to 14.51 wt%, named dewatered WPL (dWPL). Five emulsions were produced… (more)

Subjects/Keywords: Biofuels; Compression Ignition Engines; Emulsions; Fast Pyrolysis Liquid Biofuel; Indirect Injection Engines; Pyrolysis Liquids; 0363

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APA (6^th Edition):

Sookrah, V. C. (2016). Reduced Pressure Distillation of Wood Derived Pyrolysis Liquid Biofuels and their Emulsion with Diesel Fuel in a Compression Ignition, Indirect Injection Engine. (Masters Thesis). University of Toronto. Retrieved from http://hdl.handle.net/1807/72795

Chicago Manual of Style (16^th Edition):

Sookrah, Vijai Christopher. “Reduced Pressure Distillation of Wood Derived Pyrolysis Liquid Biofuels and their Emulsion with Diesel Fuel in a Compression Ignition, Indirect Injection Engine.” 2016. Masters Thesis, University of Toronto. Accessed February 27, 2021. http://hdl.handle.net/1807/72795.

MLA Handbook (7^th Edition):

Sookrah, Vijai Christopher. “Reduced Pressure Distillation of Wood Derived Pyrolysis Liquid Biofuels and their Emulsion with Diesel Fuel in a Compression Ignition, Indirect Injection Engine.” 2016. Web. 27 Feb 2021.

Vancouver:

Sookrah VC. Reduced Pressure Distillation of Wood Derived Pyrolysis Liquid Biofuels and their Emulsion with Diesel Fuel in a Compression Ignition, Indirect Injection Engine. [Internet] [Masters thesis]. University of Toronto; 2016. [cited 2021 Feb 27]. Available from: http://hdl.handle.net/1807/72795.

Council of Science Editors:

Sookrah VC. Reduced Pressure Distillation of Wood Derived Pyrolysis Liquid Biofuels and their Emulsion with Diesel Fuel in a Compression Ignition, Indirect Injection Engine. [Masters Thesis]. University of Toronto; 2016. Available from: http://hdl.handle.net/1807/72795

University of California – Berkeley

5. Vuilleumier, David Malcolm. The Effect of Ethanol Addition to Gasoline on Low- and Intermediate-Temperature Heat Release under Boosted Conditions in Kinetically Controlled Engines.

Degree: Mechanical Engineering, 2016, University of California – Berkeley

URL: http://www.escholarship.org/uc/item/6jd8g04n

► AbstractThe Effect of Ethanol Addition to Gasoline on Low- and Intermediate-Temperature Heat Release under Boosted Conditions in Kinetically Controlled EnginesbyDavid Malcolm VuilleumierDoctor of Philosophy in… (more)

▼ AbstractThe Effect of Ethanol Addition to Gasoline on Low- and Intermediate-Temperature Heat Release under Boosted Conditions in Kinetically Controlled EnginesbyDavid Malcolm VuilleumierDoctor of Philosophy in Mechanical EngineeringUniversity of California, BerkeleyProfessor Jyh-Yuan Chen, ChairThe detailed study of chemical kinetics in engines has become required to further advance engine efficiency while simultaneously lowering engine emissions. This push for higher efficiency engines is not caused by a lack of oil, but by efforts to reduce anthropogenic carbon dioxide emissions, that cause global warming. To operate in more efficient manners while reducing traditional pollutant emissions, modern internal combustion piston engines are forced to operate in regimes in which combustion is no longer fully transport limited, and instead is at least partially governed by chemical kinetics of combusting mixtures. Kinetically-controlled combustion allows the operation of piston engines at high compression ratios, with partially-premixed dilute charges; these operating conditions simultaneously provide high thermodynamic efficiency and low pollutant formation.The investigations presented in this dissertation study the effect of ethanol addition on the low-temperature chemistry of gasoline type fuels in engines. These investigations are carried out both in a simplified, fundamental engine experiment, named Homogeneous Charge Compression Ignition, as well as in more applied engine systems, named Gasoline Compression Ignition engines and Partial Fuel Stratification engines. These experimental investigations, and the accompanying modeling work, show that ethanol is an effective scavenger of radicals at low temperatures, and this inhibits the low temperature pathways of gasoline oxidation. Further, the investigations measure the sensitivity of gasoline auto-ignition to system pressure at conditions that are relevant to modern engines. It is shown that at pressures above 40 bar and temperatures below 850 Kelvin, gasoline begins to exhibit Low-Temperature Heat Release. However, the addition of 20% ethanol raises the pressure requirement to 60 bar, while the temperature requirement remains unchanged.These findings have major implications for a range of modern engines. Low-Temperature Heat Release significantly enhances the auto-ignition process, which limits the conditions under which advanced combustion strategies may operate. As these advanced combustion strategies are required to meet emissions and fuel-economy regulations, the findings of this dissertation may benefit and be incorporated into future engine design toolkits, such as detailed chemical kinetic mechanisms.

Subjects/Keywords: Mechanical engineering; Energy; Advanced Combustion Engines; Ethanol; Gasoline; Gasoline Compression Ignition; Homogeneous Charge Compression Ignition; Low-Temperature Heat Release

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Vuilleumier, D. M. (2016). The Effect of Ethanol Addition to Gasoline on Low- and Intermediate-Temperature Heat Release under Boosted Conditions in Kinetically Controlled Engines. (Thesis). University of California – Berkeley. Retrieved from http://www.escholarship.org/uc/item/6jd8g04n

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Vuilleumier, David Malcolm. “The Effect of Ethanol Addition to Gasoline on Low- and Intermediate-Temperature Heat Release under Boosted Conditions in Kinetically Controlled Engines.” 2016. Thesis, University of California – Berkeley. Accessed February 27, 2021. http://www.escholarship.org/uc/item/6jd8g04n.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Vuilleumier, David Malcolm. “The Effect of Ethanol Addition to Gasoline on Low- and Intermediate-Temperature Heat Release under Boosted Conditions in Kinetically Controlled Engines.” 2016. Web. 27 Feb 2021.

Vancouver:

Vuilleumier DM. The Effect of Ethanol Addition to Gasoline on Low- and Intermediate-Temperature Heat Release under Boosted Conditions in Kinetically Controlled Engines. [Internet] [Thesis]. University of California – Berkeley; 2016. [cited 2021 Feb 27]. Available from: http://www.escholarship.org/uc/item/6jd8g04n.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Vuilleumier DM. The Effect of Ethanol Addition to Gasoline on Low- and Intermediate-Temperature Heat Release under Boosted Conditions in Kinetically Controlled Engines. [Thesis]. University of California – Berkeley; 2016. Available from: http://www.escholarship.org/uc/item/6jd8g04n

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Penn State University

6. Raj Mohan, Vivek Raja. Development and application of a transported probability density function model for advanced compression-ignition engines.

Degree: 2014, Penn State University

URL: https://submit-etda.libraries.psu.edu/catalog/22944

► A transported probability density function (PDF) method is coupled with a deforming/moving grid with periodic removal/addition of layers of cells to accommodate piston motion in… (more)

▼ A transported probability density function (PDF) method is coupled with a deforming/moving grid with periodic removal/addition of layers of cells to accommodate piston motion in engine modeling. The coupled model is used to simulate in-cylinder combustion processes for heavy-duty compression-ignition engines. First, the influences of unresolved turbulent fluctuations in composition and temperature (turbulence-chemistry interactions – TCI) on heat release, flame structure, and emissions are explored at four operating conditions in a conventional diesel engine. TCI are isolated and quantified by comparing results from the transported PDF model with those from a model that neglects the influence of fluctuations on local mean reaction rates (a well-stirred-reactor – WSR-model), with all other aspects of the modeling being the same (e.g., spray model, gas-phase chemical mechanism, and soot model). Computed pressure and heat-release traces, turbulent flame structure, and emissions from the WSR and PDF models show marked differences, with the PDF-model results being in closer agreement with experiment in most cases. While the peak cylinder pressure values predicted by the PDF model are within 3% of the measured data, those predicted by the WSR model differ up to 10.5% from experimental data. The soot results are especially striking. Computed soot levels from the PDF model are within a factor of five of the measured engine-out particulate matter, and computed soot levels from the WSR and PDF models differ by up to several orders of magnitude, with the PDF-model results being in much closer agreement with experiment. These results highlight the importance of TCI in compression-ignition engines. Second, one of the advanced combustion modes – partially premixed combustion – is studied using gasoline as fuel. It is observed that at least four components are required to form a gasoline surrogate to predict the ignition characteristics, flame structure and emissions accurately. A good surrogate chemical mechanism needs to be validated for two-component primary reference fuel (PRF) mixtures (mixtures of n-heptane and iso-octane) and three-component toluene reference fuel mixtures (mixtures of n-heptane, iso-octane and toluene) under heavy-duty engine conditions before using it to predict gasoline combustion characteristics. Several PRF chemical mechanisms are tested to model the combustion of two-component PRF mixtures, and none of them satisfactorily match the experimental data. Those mechanisms that have been primarily developed to study leaner combustion conditions predict a longer ignition delay compared to experiments. Finally, a new combustion concept based on advanced combustion strategies has been explored. A preliminary study of this concept shows tremendous potential to increase efficiency. Advisors/Committee Members: Daniel Connell Haworth, Dissertation Advisor/Co-Advisor, Daniel Connell Haworth, Committee Chair/Co-Chair, Andre Louis Boehman, Committee Member, Stephen R Turns, Committee Member, Savas Yavuzkurt, Committee Member.

Subjects/Keywords: PDF model; compression-ignition engines; engine modeling; soot modeling; gasoline engine; heavy-duty engines; CFD modeling

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APA (6^th Edition):

Raj Mohan, V. R. (2014). Development and application of a transported probability density function model for advanced compression-ignition engines. (Thesis). Penn State University. Retrieved from https://submit-etda.libraries.psu.edu/catalog/22944

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Raj Mohan, Vivek Raja. “Development and application of a transported probability density function model for advanced compression-ignition engines.” 2014. Thesis, Penn State University. Accessed February 27, 2021. https://submit-etda.libraries.psu.edu/catalog/22944.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Raj Mohan, Vivek Raja. “Development and application of a transported probability density function model for advanced compression-ignition engines.” 2014. Web. 27 Feb 2021.

Vancouver:

Raj Mohan VR. Development and application of a transported probability density function model for advanced compression-ignition engines. [Internet] [Thesis]. Penn State University; 2014. [cited 2021 Feb 27]. Available from: https://submit-etda.libraries.psu.edu/catalog/22944.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Raj Mohan VR. Development and application of a transported probability density function model for advanced compression-ignition engines. [Thesis]. Penn State University; 2014. Available from: https://submit-etda.libraries.psu.edu/catalog/22944

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Indian Institute of Science

7. Pandey, Sunil Kumar. Exploration And Assessment of HCCI Strategies for a Multi-Cylinder Heavy-Duty Diesel Engine.

Degree: PhD, Faculty of Engineering, 2017, Indian Institute of Science

URL: http://etd.iisc.ac.in/handle/2005/2720

► Homogeneous Charge Compression Ignition (HCCI) combustion is an alternative combustion mode in which the fuel is homogeneously mixed with air and is auto-ignited by compression.… (more)

▼ Homogeneous Charge Compression Ignition (HCCI) combustion is an alternative combustion mode in which the fuel is homogeneously mixed with air and is auto-ignited by compression. Due to charge homogeneity, this mode is characterized by low equivalence ratios and temperatures giving simultaneously low nitric oxide (NOx) and soot in diesel engines. The conventional problem of NOx-soot trade-off is avoided in this mode due to absence of diffusion combustion. This mode can be employed at part load conditions while maintaining conventional combustion at high load thus minimizing regulatory cycle emissions and reducing cost of after-treatment systems. The present study focuses on achieving this mode in a turbocharged, common rail, direct injection, four-cylinder, heavy duty diesel engine. Specifically, the work involves a combination of three-dimensional CFD simulations and experiments on this engine to assess both traditional and novel strategies related to fuel injection. The first phase of the work involved a quasi-dimensional simulation of the engine to assess potential of achieving HCCI. This was done using a zero-dimensional, single-zone HCCI combustion model with n-heptane skeletal chemistry along with a one-dimensional model of intake and exhaust systems. The feasibility of operation with realistic knock values with high EGR rate of 60% was observed. The second aspect of the work involved three-dimensional CFD simulations of the in-cylinder process with wall film prediction to evaluate injection strategies associated with Early Direct Injection (EDI). The extended Coherent Flame Model-3Zone (ECFM-3Z) was employed for combustion simulation of conventional CI and EDI, and was validated with experimental in-cylinder pressure data from the engine. A new Uniformity Index (UI) parameter was defined to assess charge homogeneity. Results showed significant in-homogeneity and presence of wall film for EDI. Simulations were conducted to assess improvement of charge homogeneity by several strategies; narrow spray cone angle, injection timing, multiple injections, intake air heating, Port Fuel Injection (PFI) as well as combination of PFI and EDI. The maximum UI achieved by EDI was 0.78. The PFI strategy could achieve UI of 0.95; however, up to 50% of fuel remained trapped in the port after valve closure. This indicated that except EDI, none of the above-mentioned strategies could help achieve the benefits of the HCCI mode. The third part of the work involved engine experimentation to assess the EDI strategy. This strategy produced lower soot than that of conventional CI combustion with very short combustion duration, but led to high knock and NOx which is attributed to pool fire burning phenomenon of the wall film, as confirmed by CFD. An Optimized EDI (OptimEDI) strategy was then developed based on results of CFD and Design of Experiments. The Optim EDI consisted of triple injections with split ratio of 41%-45%-14% and advancing the first injection. This strategy gave 20% NOx and soot reduction over the conventional CI… Advisors/Committee Members: Ravikrishna, R V (advisor).

Subjects/Keywords: Homogeneous Charge Compression Ignition Engines (HCCI); Low Temperature Combustion; Multi-Cylinder Heavy-Duty Diesel Engines; Diesel Motor; Diesel Engines; Early Direct Injection; Air-Assisted Injection; Combustion; Diesel Homogeneous Charge Compression Ignition; Diesel Fuels; Diesel-Fueled Engines; Fuel Injection; Internal Combustion Engines; Computational Fluid Dynamics; Mechanical Engineering

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Pandey, S. K. (2017). Exploration And Assessment of HCCI Strategies for a Multi-Cylinder Heavy-Duty Diesel Engine. (Doctoral Dissertation). Indian Institute of Science. Retrieved from http://etd.iisc.ac.in/handle/2005/2720

Chicago Manual of Style (16^th Edition):

Pandey, Sunil Kumar. “Exploration And Assessment of HCCI Strategies for a Multi-Cylinder Heavy-Duty Diesel Engine.” 2017. Doctoral Dissertation, Indian Institute of Science. Accessed February 27, 2021. http://etd.iisc.ac.in/handle/2005/2720.

MLA Handbook (7^th Edition):

Pandey, Sunil Kumar. “Exploration And Assessment of HCCI Strategies for a Multi-Cylinder Heavy-Duty Diesel Engine.” 2017. Web. 27 Feb 2021.

Vancouver:

Pandey SK. Exploration And Assessment of HCCI Strategies for a Multi-Cylinder Heavy-Duty Diesel Engine. [Internet] [Doctoral dissertation]. Indian Institute of Science; 2017. [cited 2021 Feb 27]. Available from: http://etd.iisc.ac.in/handle/2005/2720.

Council of Science Editors:

Pandey SK. Exploration And Assessment of HCCI Strategies for a Multi-Cylinder Heavy-Duty Diesel Engine. [Doctoral Dissertation]. Indian Institute of Science; 2017. Available from: http://etd.iisc.ac.in/handle/2005/2720

University of Michigan

8. Natarajan, Vinod Kumar. Spark -assisted compression ignition: An experimental investigation into how spark ignition advances combustion phasing in gasoline HCCI engines.

Degree: PhD, Mechanical engineering, 2006, University of Michigan

URL: http://hdl.handle.net/2027.42/126242

► Implementation of homogeneous charge compression ignition (HCCI) combustion in gasoline engines, while operating with improved fuel economy and reduced NOx emissions, is limited by the… (more)

▼ Implementation of homogeneous charge compression ignition (HCCI) combustion in gasoline engines, while operating with improved fuel economy and reduced NOx emissions, is limited by the inability to control combustion phasing. Spark-assisted compression ignition (SACI) is a mechanism that controls HCCI combustion phasing, using spark ignition to advance the onset of compression ignition (CI). SACI was employed at two light-load operating points (200 kPa and 300 kPa IMEP at fueling rates of 7 and 10 mg per cycle, respectively) to advance the phasing of a marginally-stable HCCI operating point. At the lower load, stratification by means of direct injection of 3 mg fuel at the time of spark ignition was required to advance phasing using SACI. At the higher load, robust SACI operation required less stratification (late injection of 1 mg). NOx emissions increased two- and four-fold in SACI relative to HCCI operation at the lower and higher load, respectively; this increase was shown to result primarily from the stratification. This study identified two issues confounding SACI, only observed at the lower load: cyclic variability in CI combustion phasing and inability to sufficiently advance phasing. To address these issues, new metrics were created in this study to identify four stages of the SACI combustion process: spark discharge, early kernel growth (EKG), flame propagation, and CI. Experiments were performed using an optical HCCI engine to simultaneously acquire steady-state emissions, in-cylinder pressure data, spark-discharge current and voltage waveforms, images of the plasma channel, and images of combustion chemiluminescence from two orthogonal views at sub-crank-angle resolution; these measurements were used to identify the four stages for each engine cycle and thereby the cyclic variability of each stage. It was concluded that cyclic variability in the EKG, the period of low flame growth-rate and weak chemiluminescence, was the dominant cause of cyclic variability in combustion phasing. Also, findings indicated only a weak correlation between the creation of large kernels and motion of the plasma channel away from the spark gap. At the higher load, robust flame propagation immediately followed the spark discharge. It was inferred that local fuel/air distribution affected the transition to flame propagation. Advisors/Committee Members: Sick, Volker (advisor).

Subjects/Keywords: Advances; Combustion; Engines; Experimental; Gasoline; Hcci; Homogeneous Charge Compression Ignition; How; Investigation; Phasing; Spark Ignition; Spark-assisted Compression Ignition; Spark-ignition

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APA (6^th Edition):

Natarajan, V. K. (2006). Spark -assisted compression ignition: An experimental investigation into how spark ignition advances combustion phasing in gasoline HCCI engines. (Doctoral Dissertation). University of Michigan. Retrieved from http://hdl.handle.net/2027.42/126242

Chicago Manual of Style (16^th Edition):

Natarajan, Vinod Kumar. “Spark -assisted compression ignition: An experimental investigation into how spark ignition advances combustion phasing in gasoline HCCI engines.” 2006. Doctoral Dissertation, University of Michigan. Accessed February 27, 2021. http://hdl.handle.net/2027.42/126242.

MLA Handbook (7^th Edition):

Natarajan, Vinod Kumar. “Spark -assisted compression ignition: An experimental investigation into how spark ignition advances combustion phasing in gasoline HCCI engines.” 2006. Web. 27 Feb 2021.

Vancouver:

Natarajan VK. Spark -assisted compression ignition: An experimental investigation into how spark ignition advances combustion phasing in gasoline HCCI engines. [Internet] [Doctoral dissertation]. University of Michigan; 2006. [cited 2021 Feb 27]. Available from: http://hdl.handle.net/2027.42/126242.

Council of Science Editors:

Natarajan VK. Spark -assisted compression ignition: An experimental investigation into how spark ignition advances combustion phasing in gasoline HCCI engines. [Doctoral Dissertation]. University of Michigan; 2006. Available from: http://hdl.handle.net/2027.42/126242

University of Michigan

9. Martin, Jonathan. Exploring the Combustion Modes of A Dual-Fuel Compression Ignition Engine.

Degree: PhD, Mechanical Engineering, 2019, University of Michigan

URL: http://hdl.handle.net/2027.42/153383

► Compression-ignition (CI) engines, also known as “diesel” engines, can produce higher thermal efficiency (TE) than spark-ignition (SI) engines, which allows them to emit less carbon… (more)

▼ Compression-ignition (CI) engines, also known as “diesel” engines, can produce higher thermal efficiency (TE) than spark-ignition (SI) engines, which allows them to emit less carbon dioxide (CO2) per unit of energy generated. Unfortunately, in practice the TE of CI engines is limited by the need to maintain sufficiently low emissions of nitrogen oxides (NOx) and soot. This problem can be mitigated by operating CI engines in dual-fuel modes with port fuel injection (PFI) of gasoline supplementing the direct injection (DI) of diesel fuel. Several strategies for doing this have been introduced in recent years, but these operating modes are usually studied individually at discrete conditions. This thesis introduces a classification system for dual-fuel CI modes that links together several previously studied modes across a continuous two-dimensional diagram. The combustion modes covered by this system include the standard modes of conventional diesel combustion (CDC) and conventional dual-fuel (CDF); the well-explored advanced combustion modes of HCCI, RCCI, PCCI, and PPCI; and a relatively unexplored combustion mode that is herein titled “Piston-split Dual-Fuel Combustion” or PDFC. The results show that dual-fuel CI engines can simultaneously increase TE and lower NOx and/or soot emissions at high loads through the use of Partial HCCI (PHCCI), despite an increase in emissions of carbon monoxide (CO) and unburnt hydrocarbons (UHC). At low loads, PHCCI is not possible, but either PDFC or RCCI can be used to further improve NOx and/or soot emissions, albeit at slightly lower TE and still higher emissions of CO and UHC. This multi-mode strategy of PHCCI at high loads and PDFC or RCCI at low loads is particularly useful when low engine-out NOx emissions are required. Advisors/Committee Members: Boehman, Andre L (committee member), Lastoskie, Christian M (committee member), Lavoie, George A (committee member), Middleton, Robert John (committee member), Wooldridge, Margaret S (committee member).

Subjects/Keywords: compression-ignition engines; dual-fuel combustion; advanced combustion modes; RCCI; HCCI; thermal efficiency; Mechanical Engineering; Engineering

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APA (6^th Edition):

Martin, J. (2019). Exploring the Combustion Modes of A Dual-Fuel Compression Ignition Engine. (Doctoral Dissertation). University of Michigan. Retrieved from http://hdl.handle.net/2027.42/153383

Chicago Manual of Style (16^th Edition):

Martin, Jonathan. “Exploring the Combustion Modes of A Dual-Fuel Compression Ignition Engine.” 2019. Doctoral Dissertation, University of Michigan. Accessed February 27, 2021. http://hdl.handle.net/2027.42/153383.

MLA Handbook (7^th Edition):

Martin, Jonathan. “Exploring the Combustion Modes of A Dual-Fuel Compression Ignition Engine.” 2019. Web. 27 Feb 2021.

Vancouver:

Martin J. Exploring the Combustion Modes of A Dual-Fuel Compression Ignition Engine. [Internet] [Doctoral dissertation]. University of Michigan; 2019. [cited 2021 Feb 27]. Available from: http://hdl.handle.net/2027.42/153383.

Council of Science Editors:

Martin J. Exploring the Combustion Modes of A Dual-Fuel Compression Ignition Engine. [Doctoral Dissertation]. University of Michigan; 2019. Available from: http://hdl.handle.net/2027.42/153383

Anna University

10. Venkata ramanan M. Some studies on gasification of cashew shell char and dual fuelling of cashew shell char based producer gas in compression ignition engines;.

Degree: Some studies on gasification of cashew shell char and dual fuelling of cashew shell char based producer gas in compression ignition engines, 2014, Anna University

URL: http://shodhganga.inflibnet.ac.in/handle/10603/27175

►

With ongoing depletion of conventional fossil fuel reserves and associated environmental concerns there is a renewed interest in the utilization of biomass for supplementing the… (more)

Subjects/Keywords: Cashew Nut Shell; Cashew shell char; Compression ignition engines; Dual fuelling; Gasification; Gasification of Cashew shell Char; Mechanical engineering

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APA (6^th Edition):

M, V. r. (2014). Some studies on gasification of cashew shell char and dual fuelling of cashew shell char based producer gas in compression ignition engines;. (Thesis). Anna University. Retrieved from http://shodhganga.inflibnet.ac.in/handle/10603/27175

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

M, Venkata ramanan. “Some studies on gasification of cashew shell char and dual fuelling of cashew shell char based producer gas in compression ignition engines;.” 2014. Thesis, Anna University. Accessed February 27, 2021. http://shodhganga.inflibnet.ac.in/handle/10603/27175.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

M, Venkata ramanan. “Some studies on gasification of cashew shell char and dual fuelling of cashew shell char based producer gas in compression ignition engines;.” 2014. Web. 27 Feb 2021.

Vancouver:

M Vr. Some studies on gasification of cashew shell char and dual fuelling of cashew shell char based producer gas in compression ignition engines;. [Internet] [Thesis]. Anna University; 2014. [cited 2021 Feb 27]. Available from: http://shodhganga.inflibnet.ac.in/handle/10603/27175.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

M Vr. Some studies on gasification of cashew shell char and dual fuelling of cashew shell char based producer gas in compression ignition engines;. [Thesis]. Anna University; 2014. Available from: http://shodhganga.inflibnet.ac.in/handle/10603/27175

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

11. Palvannan V. Experimental investigation of cashew nut shell liquid as alternative fuel in DI and IDI compression ignition engines;.

Degree: Experimental investigation of cashew nut shell liquid as alternative fuel in DI and IDI compression ignition engines, 2014, Anna University

URL: http://shodhganga.inflibnet.ac.in/handle/10603/26370

►

Energy plays a vital role in the socio economic development and human welfare of a country It has a major contribution in the entire process… (more)

Subjects/Keywords: Cashew nut shell liquid; Compression ignition engines; Direct Injection; Indirect Injection; Internal Combustion Engine; Mechanical engineering

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APA (6^th Edition):

V, P. (2014). Experimental investigation of cashew nut shell liquid as alternative fuel in DI and IDI compression ignition engines;. (Thesis). Anna University. Retrieved from http://shodhganga.inflibnet.ac.in/handle/10603/26370

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

V, Palvannan. “Experimental investigation of cashew nut shell liquid as alternative fuel in DI and IDI compression ignition engines;.” 2014. Thesis, Anna University. Accessed February 27, 2021. http://shodhganga.inflibnet.ac.in/handle/10603/26370.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

V, Palvannan. “Experimental investigation of cashew nut shell liquid as alternative fuel in DI and IDI compression ignition engines;.” 2014. Web. 27 Feb 2021.

Vancouver:

V P. Experimental investigation of cashew nut shell liquid as alternative fuel in DI and IDI compression ignition engines;. [Internet] [Thesis]. Anna University; 2014. [cited 2021 Feb 27]. Available from: http://shodhganga.inflibnet.ac.in/handle/10603/26370.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

V P. Experimental investigation of cashew nut shell liquid as alternative fuel in DI and IDI compression ignition engines;. [Thesis]. Anna University; 2014. Available from: http://shodhganga.inflibnet.ac.in/handle/10603/26370

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Brno University of Technology

12. Kovář, Lukáš. Lokomotivní motory ČKD: Locomotive engines ČKD.

Degree: 2019, Brno University of Technology

URL: http://hdl.handle.net/11012/39820

► The work contains summary of locomotive diesel engines ČKD and description of the basic specification of these engines and its comparison with modern engines from… (more)

Subjects/Keywords: Motory ČKD; lokomotivní; vznětový motor; dieselový motor; kolejové vozidlo; ČKD engines; locomotive; compression-ignition engine; diesel engine; rail vehicle

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APA (6^th Edition):

Kovář, L. (2019). Lokomotivní motory ČKD: Locomotive engines ČKD. (Thesis). Brno University of Technology. Retrieved from http://hdl.handle.net/11012/39820

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Kovář, Lukáš. “Lokomotivní motory ČKD: Locomotive engines ČKD.” 2019. Thesis, Brno University of Technology. Accessed February 27, 2021. http://hdl.handle.net/11012/39820.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Kovář, Lukáš. “Lokomotivní motory ČKD: Locomotive engines ČKD.” 2019. Web. 27 Feb 2021.

Vancouver:

Kovář L. Lokomotivní motory ČKD: Locomotive engines ČKD. [Internet] [Thesis]. Brno University of Technology; 2019. [cited 2021 Feb 27]. Available from: http://hdl.handle.net/11012/39820.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Kovář L. Lokomotivní motory ČKD: Locomotive engines ČKD. [Thesis]. Brno University of Technology; 2019. Available from: http://hdl.handle.net/11012/39820

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Michigan

13. Ortiz-Soto, Elliott Alexander. Combustion Modeling of Spark Assisted Compression Ignition for Experimental Analysis and Engine System Simulations.

Degree: PhD, Mechanical Engineering, 2013, University of Michigan

URL: http://hdl.handle.net/2027.42/102314

► Advanced combustion strategies provide significant efficiency and emissions benefits compared to conventional spark ignited (SI) combustion, but challenges related to combustion control and load limits… (more)

▼ Advanced combustion strategies provide significant efficiency and emissions benefits compared to conventional spark ignited (SI) combustion, but challenges related to combustion control and load limits have made these technologies difficult to implement in practical systems. Until now, low cost reduced order models necessary for large parametric and multi-cycle studies capable of accurately capturing the full range of combustion modes from homogeneous charge compression ignition (HCCI) and spark-assisted compression ignition (SACI) to SI have not been available. This important computational gap for advanced combustion engine research was the primary motivation for this doctoral work. The outcomes of this study include powerful new tools to evaluate advanced combustion strategies as well as novel methods to incorporate important advanced combustion characteristics into reduced order models. A reduced order thermodynamic model of advanced SACI combustion was first proposed. The model was used with available experimental data and previous high fidelity simulation results to develop a new empirical auto-ignition burn rate model that captures the effects of ignition timing, composition, temperature, pressure, engine speed, stratification and flame propagation. A complete engine model was then developed and incorporated into the commercial simulation software GT-Power. The model included chemical kinetics for low temperature heat release and auto-ignition detection and the empirical burn rate model for post-ignition heat release, as well as a new flame propagation model with improved physical groundings. The calibrated engine model showed good agreement with experimental trends of HCCI, SACI and SI combustion modes. The engine model was then used to assess practical strategies for accessing the advanced combustion regime and improving engine efficiency. The results showed HCCI and SACI provide a pathway for significant efficiency benefits compared to throttled SI, with efficiency improvements between 15-25% across a range of loads from 1-7 bar BMEP. Further efficiency gains appear possible beyond the experimentally observed SACI limit. As a further exercise, the load extension potential of boosted SACI combustion was conceptually investigated using a simple thermodynamic framework incorporating the empirical burn rate model and practical operating constraints. The results indicate boosted SACI can nearly double the maximum engine load compared to naturally aspirated operation. Advisors/Committee Members: Wooldridge, Margaret S. (committee member), Assanis, Dionissios N. (committee member), Fidkowski, Krzysztof J. (committee member), Martz, Jason Brian (committee member), Lavoie, George A. (committee member), Babajimopoulos, Aristotelis (committee member), Borgnakke, Claus (committee member).

Subjects/Keywords: Spark Assisted Compression Ignition, Saci; Homogeneous Charge Compression Ignition, Hcci, Spark Ignition, Si, Knock; Advanced Combustion Engines; Combustion Modeling; Engine Simulation; Efficiency, Fuel Economy, Load Extension, Load Expansion; Mechanical Engineering; Engineering

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Ortiz-Soto, E. A. (2013). Combustion Modeling of Spark Assisted Compression Ignition for Experimental Analysis and Engine System Simulations. (Doctoral Dissertation). University of Michigan. Retrieved from http://hdl.handle.net/2027.42/102314

Chicago Manual of Style (16^th Edition):

Ortiz-Soto, Elliott Alexander. “Combustion Modeling of Spark Assisted Compression Ignition for Experimental Analysis and Engine System Simulations.” 2013. Doctoral Dissertation, University of Michigan. Accessed February 27, 2021. http://hdl.handle.net/2027.42/102314.

MLA Handbook (7^th Edition):

Ortiz-Soto, Elliott Alexander. “Combustion Modeling of Spark Assisted Compression Ignition for Experimental Analysis and Engine System Simulations.” 2013. Web. 27 Feb 2021.

Vancouver:

Ortiz-Soto EA. Combustion Modeling of Spark Assisted Compression Ignition for Experimental Analysis and Engine System Simulations. [Internet] [Doctoral dissertation]. University of Michigan; 2013. [cited 2021 Feb 27]. Available from: http://hdl.handle.net/2027.42/102314.

Council of Science Editors:

Ortiz-Soto EA. Combustion Modeling of Spark Assisted Compression Ignition for Experimental Analysis and Engine System Simulations. [Doctoral Dissertation]. University of Michigan; 2013. Available from: http://hdl.handle.net/2027.42/102314

University of Michigan

14. Chiang, Chia-Jui. Modeling and control of homogeneous charge compression ignition engines with high dilution.

Degree: PhD, Mechanical engineering, 2007, University of Michigan

URL: http://hdl.handle.net/2027.42/126384

► Homogeneous charge compression ignition (HCCI) engines provide the benefits such as low NOx emission and high fuel efficiency. Control of the HCCI engine, however, is… (more)

▼ Homogeneous charge compression ignition (HCCI) engines provide the benefits such as low NOx emission and high fuel efficiency. Control of the HCCI engine, however, is difficult since its ignition cannot be directly actuated. Controlled autoignition requires regulation of the charge properties, especially charge temperature, as observed by many experimental results and substantiated in this thesis. To facilitate the control analysis and development, this thesis first introduce a physics-based cycle-to-cycle model of' a gasoline HCCI engine with an internal feedback loop constituted by the recirculation of exhaust gas. One important assumption in our modeling work that propagates down to the multiplicity analysis and controller synthesis is that the charge composition does not affect combustion (autoignition timing, burn duration, combustion efficiency, etc). This assumption is validated by the dominance of thermal dynamics revealed by sensitivity analysis and balanced realization of plant linearizations. Good agreement with experimental data suggests that the charge composition effects probably are of secondary importance, at least, for the regulation of the crank angle of 50% fuel burned (theta_C_A50). Based on the balanced truncation of the linearized model, a decentralized feedback and cancellation feedforward controller is designed. This linear controller has minimal complexity and care be tuned using classical PID design rules or real-time identification. The impact of the: nonlinear temperature dynamics in the internal feedback loop is then investigated by using the returning maps. The returning maps reveal the existence of stable and unstable equilibria of the cycle-to-cycle thermal dynamics. In the end, a nonlinear observer-based feedback controller is developed to stabilize the cycle-to-cycle temperature dynamics and regulate the combustion timing during large load transitions within the HCCI operating range. Simulations and estimates of the region of attraction show that the designed controller is robust to uncertainties such as the manifold filling dynamics, exhaust runner heat transfer, the cycle-to-cycle variation of theta_C_A50 and the uncertainty in the nonlinearity of the temperature dynamics. Advisors/Committee Members: Stefanopoulou, Anna G. (advisor).

Subjects/Keywords: Dilution; Engines; High; Homogeneous Charge Compression Ignition; Homogeneous Charge-compression Ignition; Linear Control; Modeling

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Chiang, C. (2007). Modeling and control of homogeneous charge compression ignition engines with high dilution. (Doctoral Dissertation). University of Michigan. Retrieved from http://hdl.handle.net/2027.42/126384

Chicago Manual of Style (16^th Edition):

Chiang, Chia-Jui. “Modeling and control of homogeneous charge compression ignition engines with high dilution.” 2007. Doctoral Dissertation, University of Michigan. Accessed February 27, 2021. http://hdl.handle.net/2027.42/126384.

MLA Handbook (7^th Edition):

Chiang, Chia-Jui. “Modeling and control of homogeneous charge compression ignition engines with high dilution.” 2007. Web. 27 Feb 2021.

Vancouver:

Chiang C. Modeling and control of homogeneous charge compression ignition engines with high dilution. [Internet] [Doctoral dissertation]. University of Michigan; 2007. [cited 2021 Feb 27]. Available from: http://hdl.handle.net/2027.42/126384.

Council of Science Editors:

Chiang C. Modeling and control of homogeneous charge compression ignition engines with high dilution. [Doctoral Dissertation]. University of Michigan; 2007. Available from: http://hdl.handle.net/2027.42/126384

University of Michigan

15. Cho, Wooheum. A study on pressure reactive piston for spark ignition engines.

Degree: PhD, Mechanical engineering, 2004, University of Michigan

URL: http://hdl.handle.net/2027.42/124383

► The thrust toward improving vehicle fuel economy has stimulated the development of engine technologies including Variable Compression Ratio (VCR) piston designs. Pressure Reactive Piston (PRP)… (more)

▼ The thrust toward improving vehicle fuel economy has stimulated the development of engine technologies including Variable Compression Ratio (VCR) piston designs. Pressure Reactive Piston (PRP) technology separates the piston into two pieces with a spring set located between the upper and lower pistons. The unique feature of PRP is that the upper piston reacts to the cylinder pressure during the power stroke, accommodating rapid engine load changes passively. This mechanism effectively limits the peak cylinder pressures at high loads without an additional control device, while allowing high compression ratio under low loads. The maximum compression ratio without knocking was examined, and the preload and spring constant of spring set were obtained by using a quasi-dimensional simulation program. Belleville spring was selected as the spring set of the PRP because of its compactness and ability to carry high load with small deflection. Dynamic analysis of the piston crown was performed to calculate spring deflection and instantaneous chamber volume. The baseline and PRP engine were tested on single cylinder SI engine. Dynamometer test results demonstrated that BSFC improvement of the PRP engine over the baseline ranged from 8 to 18% at part loads. Full load torque was developed with the PRP engine without knocking at a similar magnitude as the baseline. The PRP engine combustion is characterized by Reverse and Flattened Motion of piston crown near the Top Dead Center (TDC) and higher thermal efficiency. An analytic model for the geometric interaction between the spherical flame and the combustion chamber was newly developed in order to calculate the flame entrainment rate of unburned charge. The program was modified for simulating PRP motion to investigate the effect of the spring set on engine performance and emissions over various operating conditions. It was found that BSFC improvement of the PRP engine increased with engine speed and fuel conversion efficiency was gradually increased with the increase of the spring set preload until the spring set could not be compressed any more due to high preload. However, NO emissions were increased at part loads compared to the baseline due to higher compression ratio. Advisors/Committee Members: Assanis, Dennis N. (advisor).

Subjects/Keywords: Piston; Pressure-reactive; Spark-ignition Engines; Study; Variable Compression Ratio

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APA (6^th Edition):

Cho, W. (2004). A study on pressure reactive piston for spark ignition engines. (Doctoral Dissertation). University of Michigan. Retrieved from http://hdl.handle.net/2027.42/124383

Chicago Manual of Style (16^th Edition):

Cho, Wooheum. “A study on pressure reactive piston for spark ignition engines.” 2004. Doctoral Dissertation, University of Michigan. Accessed February 27, 2021. http://hdl.handle.net/2027.42/124383.

MLA Handbook (7^th Edition):

Cho, Wooheum. “A study on pressure reactive piston for spark ignition engines.” 2004. Web. 27 Feb 2021.

Vancouver:

Cho W. A study on pressure reactive piston for spark ignition engines. [Internet] [Doctoral dissertation]. University of Michigan; 2004. [cited 2021 Feb 27]. Available from: http://hdl.handle.net/2027.42/124383.

Council of Science Editors:

Cho W. A study on pressure reactive piston for spark ignition engines. [Doctoral Dissertation]. University of Michigan; 2004. Available from: http://hdl.handle.net/2027.42/124383

Brno University of Technology

16. Šiška, Adam. Systém common rail v osobních automobilech: Common Rail System in Passenger Cars.

Degree: 2019, Brno University of Technology

URL: http://hdl.handle.net/11012/10634

► Bachelor thesis is focused on the Common Rail system. On the whole this work shows that the Common Rail system is one of the top… (more)

Subjects/Keywords: Vznětové motory Vstřikovací systémy Emise výfukových plynů Common Rail – prvky; princip činnosti; výhody; nevýhody; diagnostika; použití; vývoj. Sdružené vstřikovací jednotky; Compression-ignition engines Injection engines Exhaust emissions Common Rail - elements; principles of operation; advantages; disadvantages; diagnostics; application; development Combined injection unit

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APA (6^th Edition):

Šiška, A. (2019). Systém common rail v osobních automobilech: Common Rail System in Passenger Cars. (Thesis). Brno University of Technology. Retrieved from http://hdl.handle.net/11012/10634

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Šiška, Adam. “Systém common rail v osobních automobilech: Common Rail System in Passenger Cars.” 2019. Thesis, Brno University of Technology. Accessed February 27, 2021. http://hdl.handle.net/11012/10634.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Šiška, Adam. “Systém common rail v osobních automobilech: Common Rail System in Passenger Cars.” 2019. Web. 27 Feb 2021.

Vancouver:

Šiška A. Systém common rail v osobních automobilech: Common Rail System in Passenger Cars. [Internet] [Thesis]. Brno University of Technology; 2019. [cited 2021 Feb 27]. Available from: http://hdl.handle.net/11012/10634.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Šiška A. Systém common rail v osobních automobilech: Common Rail System in Passenger Cars. [Thesis]. Brno University of Technology; 2019. Available from: http://hdl.handle.net/11012/10634

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

ETH Zürich

17. Mitakos, Dimitrios A. Experimental Investigations for Phenomenological Modelling of Two-Stage Auto-Ignition under HCCI Conditions.

Degree: 2014, ETH Zürich

URL: http://hdl.handle.net/20.500.11850/100287

Subjects/Keywords: INTERNAL COMBUSTION ENGINES (HEAT ENGINES); AUTOOXIDATION + SELBSTZÜNDUNG + ENTFLAMMBARKEIT + FLAMMPUNKT (CHEMISCHE KINETIK); ZÜNDUNG + ZÜNDTEMPERATUR + ZÜNDEIGENSCHAFTEN (BRENNSTOFFTECHNOLOGIE); HOMOGENE KOMPRESSIONSZÜNDUNG, HCCI (VERBRENNUNGSMOTOREN); IGNITION PROPERTIES + IGNITION TEMPERATURE (FUEL TECHNOLOGY); HOMOGENEOUS CHARGE COMPRESSION IGNITION, HCCI (INTERNAL COMBUSTION ENGINES); AUTO-OXIDATION + SELF-IGNITION + FLAMMABILITY + FLASH POINT (CHEMICAL KINETICS); VERBRENNUNGSKRAFTMASCHINEN (WÄRMEKRAFTMASCHINEN); info:eu-repo/classification/ddc/620; Engineering & allied operations

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Mitakos, D. A. (2014). Experimental Investigations for Phenomenological Modelling of Two-Stage Auto-Ignition under HCCI Conditions. (Doctoral Dissertation). ETH Zürich. Retrieved from http://hdl.handle.net/20.500.11850/100287

Chicago Manual of Style (16^th Edition):

Mitakos, Dimitrios A. “Experimental Investigations for Phenomenological Modelling of Two-Stage Auto-Ignition under HCCI Conditions.” 2014. Doctoral Dissertation, ETH Zürich. Accessed February 27, 2021. http://hdl.handle.net/20.500.11850/100287.

MLA Handbook (7^th Edition):

Mitakos, Dimitrios A. “Experimental Investigations for Phenomenological Modelling of Two-Stage Auto-Ignition under HCCI Conditions.” 2014. Web. 27 Feb 2021.

Vancouver:

Mitakos DA. Experimental Investigations for Phenomenological Modelling of Two-Stage Auto-Ignition under HCCI Conditions. [Internet] [Doctoral dissertation]. ETH Zürich; 2014. [cited 2021 Feb 27]. Available from: http://hdl.handle.net/20.500.11850/100287.

Council of Science Editors:

Mitakos DA. Experimental Investigations for Phenomenological Modelling of Two-Stage Auto-Ignition under HCCI Conditions. [Doctoral Dissertation]. ETH Zürich; 2014. Available from: http://hdl.handle.net/20.500.11850/100287

University of Michigan

18. Babajimopoulos, Aristotelis. Development of sequential and fully integrated CFD/multi-zone models with detailed chemical kinetics for the simulation of HCCI engines.

Degree: PhD, Mechanical engineering, 2005, University of Michigan

URL: http://hdl.handle.net/2027.42/124994

► Modeling the Homogeneous Charge Compression Ignition (HCCI) engine requires a balanced approach that captures both fluid motion as well as low and high temperature fuel… (more)

▼ Modeling the Homogeneous Charge Compression Ignition (HCCI) engine requires a balanced approach that captures both fluid motion as well as low and high temperature fuel oxidation. A fully coupled CFD and chemistry scheme would be the ideal HCCI modeling approach, but is computationally very expensive. As a result, modeling assumptions are required in order to develop tools that are computationally efficient, yet maintain an acceptable degree of accuracy. In the first part of this dissertation, KIVA-3V is used to investigate the mixing process in HCCI engines prior to combustion, particularly for operation with high levels of residual gas fraction. It is found that insufficient mixing of the hot residuals with the fresh charge can lead to the presence of significant temperature and composition nonuniformities in the cylinder. Then, in order to investigate the effect of temperature and composition stratification on HCCI combustion, two modeling approaches are explored. The first approach is a sequential fluid-mechanic - thermo-kinetic model. The KIVA-3V code is initiated before the exhaust event and operated over the gas exchange period, until a transition point before TDC. The three-dimensional computational domain is then mapped into a two-dimensional array of zones with different temperature and composition, which are used to initiate a multi-zone thermodynamic simulation. In the second approach, KIVA-3V is fully integrated with a multi-zone model with detailed chemical kinetics. The multi-zone model communicates with KIVA-3V at each computational timestep, as in the ideal fully coupled case. However, the composition of the cells is mapped back and forth between KIVA-3V and the multi-zone model, introducing significant computational time savings. The methodology uses a novel re-mapping technique that can account for both temperature and composition non-uniformities in the cylinder. Validation cases were developed by solving the detailed chemistry in every cell of a KIVA-3V grid. The new methodology shows good agreement with the detailed solutions. Hence, it can be used to provide insight into the fundamental effects of temperature and equivalence ratio distribution on ignition, burn duration, and emissions in HCCI engines. Advisors/Committee Members: Assanis, Dionissios N. (advisor).

Subjects/Keywords: Cfd; Chemical; Combustion; Detailed; Development; Engines; Fully; Hcci; Homogeneous Charge Compression Ignition; Integrated; Kinetics; Models; Multi; Sequential; Simulation; Zone

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APA (6^th Edition):

Babajimopoulos, A. (2005). Development of sequential and fully integrated CFD/multi-zone models with detailed chemical kinetics for the simulation of HCCI engines. (Doctoral Dissertation). University of Michigan. Retrieved from http://hdl.handle.net/2027.42/124994

Chicago Manual of Style (16^th Edition):

Babajimopoulos, Aristotelis. “Development of sequential and fully integrated CFD/multi-zone models with detailed chemical kinetics for the simulation of HCCI engines.” 2005. Doctoral Dissertation, University of Michigan. Accessed February 27, 2021. http://hdl.handle.net/2027.42/124994.

MLA Handbook (7^th Edition):

Babajimopoulos, Aristotelis. “Development of sequential and fully integrated CFD/multi-zone models with detailed chemical kinetics for the simulation of HCCI engines.” 2005. Web. 27 Feb 2021.

Vancouver:

Babajimopoulos A. Development of sequential and fully integrated CFD/multi-zone models with detailed chemical kinetics for the simulation of HCCI engines. [Internet] [Doctoral dissertation]. University of Michigan; 2005. [cited 2021 Feb 27]. Available from: http://hdl.handle.net/2027.42/124994.

Council of Science Editors:

Babajimopoulos A. Development of sequential and fully integrated CFD/multi-zone models with detailed chemical kinetics for the simulation of HCCI engines. [Doctoral Dissertation]. University of Michigan; 2005. Available from: http://hdl.handle.net/2027.42/124994

Penn State University

19. Chapman, Elana M. NOx Reduction Strategies for Compression Ignition Engines.

Degree: 2008, Penn State University

URL: https://submit-etda.libraries.psu.edu/catalog/8227

► The scope of this investigation is to explore strategies to reduce NOx emissions from compression ignition engines. Two methods are presented in this collection of… (more)

▼ The scope of this investigation is to explore strategies to reduce NOx emissions from compression ignition engines. Two methods are presented in this collection of studies: 1) NOx reduction accomplished through a change in fuel formulation, specifically through a change in the saturated fuel carbon chains of biodiesel; and 2) NOx reduction accomplished through a mixed mode combustion process utilizing a fumigated fuel and a pilot injection of diesel fuel. In the first study, a light duty diesel engine was used to investigate the change in saturation of a biodiesel fuel and its impact on NOx emissions. Previous studies have shown that a reduction in the iodine value of a biodiesel fuel produces a reduction in NOx emissions. The iodine value of the fuel is reduced through the saturation of the C18 molecules via hydrogenation of biodiesel fuel. Experiments were performed at several speeds and loads without exhaust gas recirculation (EGR), and a NOx reduction with the hydrogenated diesel fuel was observed. For all the modes studied, the NOx emission was higher for the biodiesel and lower for the hydrogenated biodiesel in comparison to the ultra low sulfur diesel (ULSD) fuel. Results from the calculation of the adiabatic flame temperature shows that the results could be explained by the difference in adiabatic flame temperature of the fuel, thus influencing the prompt NOx contribution in addition to the thermal contribution. Since the adiabatic flame temperatures are similar for the hydrogenated biodiesel and the ULSD, yet the NOx reduction with the hydrogenated biodiesel is much lower than the USLD levels, another explanation for the reduction is suggested: the additional prompt NOx contribution from the change in fuel chemistry. The second study investigated the NOx reductions which could be achieved with a mixed mode combustion process utilizing a fumigated fuel and a pilot injection of diesel fuel. In this research, the fumigated fuel was dimethyl ether (DME) and DME/Methane blends, while the pilot injection fuel was ULSD. Several sets of experiments were performed to study the ignition of the fumigated fuel, and its impact on the NOx emissions. In the first set of experiments, the DME concentration was spanned over a range of 15 to 44% energy equivalent of the total fuel requirement. An approximately 20% reduction in NOx emissions was observed up to 35% DME energy equivalent. As the energy equivalent increased above 35%, the NOx emissions began to increase with the increase in the peak of the high temperature heat release (HTHR). While the NOx emissions decreased, there was also a significant shift in the NO to NO2 conversion for all DME fumigation test conditions in comparison to the baseline diesel cases. For 25% DME energy equivalent, the injection timing of the pilot diesel was retarded and a reduction in the NOx emissions was observed. The low temperature heat release (LTHR) and the HTHR remained constant in magnitude and timing while the injection timing of the pilot diesel was retarded. The peak pressure for… Advisors/Committee Members: Andre Louis Boehman, Committee Chair/Co-Chair, Alan W Scaroni, Committee Member, Angela Lueking, Committee Member, Thomas Litzinger, Committee Member, Daniel Connell Haworth, Committee Member.

Subjects/Keywords: NOx; oxides of nitrogen; compression ignition engines; biodiesel; DME; dimethyl ether; diesel; alternative fuels

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Chapman, E. M. (2008). NOx Reduction Strategies for Compression Ignition Engines. (Thesis). Penn State University. Retrieved from https://submit-etda.libraries.psu.edu/catalog/8227

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Chapman, Elana M. “NOx Reduction Strategies for Compression Ignition Engines.” 2008. Thesis, Penn State University. Accessed February 27, 2021. https://submit-etda.libraries.psu.edu/catalog/8227.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Chapman, Elana M. “NOx Reduction Strategies for Compression Ignition Engines.” 2008. Web. 27 Feb 2021.

Vancouver:

Chapman EM. NOx Reduction Strategies for Compression Ignition Engines. [Internet] [Thesis]. Penn State University; 2008. [cited 2021 Feb 27]. Available from: https://submit-etda.libraries.psu.edu/catalog/8227.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Chapman EM. NOx Reduction Strategies for Compression Ignition Engines. [Thesis]. Penn State University; 2008. Available from: https://submit-etda.libraries.psu.edu/catalog/8227

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Georgia Southern University

20. Lewis, Jeffery. Analysis of the Performance of Peanut Fame in a Single Cylinder Idi Engine and Investigations of Neat Methyl Ester Influence on Fuel Quality.

Degree: MSin Applied Engineering (M.S.A.E.), Department of Mechanical Engineering, 2011, Georgia Southern University

URL: https://digitalcommons.georgiasouthern.edu/etd/1041

► Author's abstract: To meet evolving standards set forth by the U.S. EPA and U.S. Energy Policy it is necessary to consider a variety of… (more)

Subjects/Keywords: ETD; Biodiesel; Peanuts; Combustion; Emissions; Transeterification; Compression ignition engines; Agriculture; Biological Engineering; Biology; Biomechanics and Biotransport; Biomedical Engineering and Bioengineering; Engineering; Life Sciences; Jack N. Averitt College of Graduate Studies, Electronic Theses & Dissertations, ETDs, Student Research

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APA (6^th Edition):

Lewis, J. (2011). Analysis of the Performance of Peanut Fame in a Single Cylinder Idi Engine and Investigations of Neat Methyl Ester Influence on Fuel Quality. (Masters Thesis). Georgia Southern University. Retrieved from https://digitalcommons.georgiasouthern.edu/etd/1041

Chicago Manual of Style (16^th Edition):

Lewis, Jeffery. “Analysis of the Performance of Peanut Fame in a Single Cylinder Idi Engine and Investigations of Neat Methyl Ester Influence on Fuel Quality.” 2011. Masters Thesis, Georgia Southern University. Accessed February 27, 2021. https://digitalcommons.georgiasouthern.edu/etd/1041.

MLA Handbook (7^th Edition):

Lewis, Jeffery. “Analysis of the Performance of Peanut Fame in a Single Cylinder Idi Engine and Investigations of Neat Methyl Ester Influence on Fuel Quality.” 2011. Web. 27 Feb 2021.

Vancouver:

Lewis J. Analysis of the Performance of Peanut Fame in a Single Cylinder Idi Engine and Investigations of Neat Methyl Ester Influence on Fuel Quality. [Internet] [Masters thesis]. Georgia Southern University; 2011. [cited 2021 Feb 27]. Available from: https://digitalcommons.georgiasouthern.edu/etd/1041.

Council of Science Editors:

Lewis J. Analysis of the Performance of Peanut Fame in a Single Cylinder Idi Engine and Investigations of Neat Methyl Ester Influence on Fuel Quality. [Masters Thesis]. Georgia Southern University; 2011. Available from: https://digitalcommons.georgiasouthern.edu/etd/1041

Indian Institute of Science

21. Kapadia, Bhavin Kanaiyalal. Development Of A Single Cylinder SI Engine For 100% Biogas Operation.

Degree: MSc Engg, Faculty Of Engineering, 2007, Indian Institute of Science

URL: http://etd.iisc.ac.in/handle/2005/283

► This work concerns a systematic study of IC engine operation with 100% biogas as fuel (as opposed to the dual-fuel mode) with particular emphasis on… (more)

▼ This work concerns a systematic study of IC engine operation with 100% biogas as fuel (as opposed to the dual-fuel mode) with particular emphasis on operational issues and the quest for high efficiency strategies. As a first step, a commercially available 1.2 kW genset engine is modified for biogas operation. The conventional premixing of air and biogas is compared with a new manifold injection strategy. The effect of biogas composition on engine performance is also studied. Results from the genset engine study indicate a very low overall efficiency of the system. This is mainly due to the very low compression ratio (4.5) of the engine. To gain further insight into factors that contribute to this low efficiency, thermodynamic engine simulations are conducted. Reasonable agreement with experiments is obtained after incorporating estimated combustion durations. Subsequently, the model is used as a tool to predict effect of different parameters such as compression ratio, spark timing and combustion durations on engine performance and efficiency. Simulations show that significant improvement in performance can be obtained at high compression ratios. As a step towards developing a more efficient system and based on insight obtained from simulations, a high compression ratio (9.2) engine is selected. This engine is coupled to a 3 kW alternator and operated on 100% biogas. Both strategies, i.e., premixing and manifold injection are implemented. The results show very high overall (chemical to electrical) efficiencies with a maximum value of 22% at 1.4 kW with the manifold injection strategy. The new manifold injection strategy proposed here is found to be clearly superior to the conventional premixing method. The main reasons are the higher volumetric efficiency (25% higher than that for the premixing mode of supply) and overall lean operation of the engine across the entire load range. Predictions show excellent agreement with measurements, enabling the model to be used as a tool for further study. Simulations suggest that a higher compression ratio (up to 13) and appropriate spark advance can lead to higher engine power output and efficiency. Advisors/Committee Members: Ravikrishna, R V (advisor).

Subjects/Keywords: Internal Combustion Engine; Biogas; Genset Engine; High Compression Ratio Engine; Spark Ignition Engines; Biogas Generation; Spark-Ignition Engine; Gaseous Fuels; Gasoline; IC Engine; SI Engine; Engines - Performance; Spark-Ignited Engine; Heat Engineering

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Kapadia, B. K. (2007). Development Of A Single Cylinder SI Engine For 100% Biogas Operation. (Masters Thesis). Indian Institute of Science. Retrieved from http://etd.iisc.ac.in/handle/2005/283

Chicago Manual of Style (16^th Edition):

Kapadia, Bhavin Kanaiyalal. “Development Of A Single Cylinder SI Engine For 100% Biogas Operation.” 2007. Masters Thesis, Indian Institute of Science. Accessed February 27, 2021. http://etd.iisc.ac.in/handle/2005/283.

MLA Handbook (7^th Edition):

Kapadia, Bhavin Kanaiyalal. “Development Of A Single Cylinder SI Engine For 100% Biogas Operation.” 2007. Web. 27 Feb 2021.

Vancouver:

Kapadia BK. Development Of A Single Cylinder SI Engine For 100% Biogas Operation. [Internet] [Masters thesis]. Indian Institute of Science; 2007. [cited 2021 Feb 27]. Available from: http://etd.iisc.ac.in/handle/2005/283.

Council of Science Editors:

Kapadia BK. Development Of A Single Cylinder SI Engine For 100% Biogas Operation. [Masters Thesis]. Indian Institute of Science; 2007. Available from: http://etd.iisc.ac.in/handle/2005/283

22. Lee, Donghoon. Closed-Loop Combustion Control of Advanced Internal Combustion Engines.

Degree: PhD, Mechanical Engineering, 2011, University of Michigan

URL: http://hdl.handle.net/2027.42/84501

► Current emphasis on decreasing vehicle fuel consumption and carbon dioxide (CO2) emission from the automotive sector directs many research efforts towards two gasoline engine technologies,… (more)

▼ Current emphasis on decreasing vehicle fuel consumption and carbon dioxide (CO2) emission from the automotive sector directs many research efforts towards two gasoline engine technologies, namely, the Homogeneous Charge Compression Ignition (HCCI) engines, and the downsized TurboCharged (TC) Spark Ignition Direct Injection (SIDI) engines with variable valve timing (VVT). In the HCCI category, many actuation strategies have been proposed with the more popular being the dual-fuel strategies and the high residual recycling. In this thesis, a heat recycling strategy is considered, specifically, a heated-air inlet HCCI engine with two intake throttles that control the cold and hot air streams. To facilitate the control analysis and development, a physics-based crank-angle resolved and a mean-value models are developed for feedback controller design. We discover that the combustion duration defined as the duration between the crank angle of 10% and 90% fuel burned, provides a universal set point for all speeds and loads for both combustion stability and fuel efficiency. Based on a novel allocation of two actuators, the hot and cold throttles, a feedback controller is designed and simulated to regulate the combustion duration at a desired value during load changes. In the category of the TC SIDI engines, we address the important problem of reducing the calibration complexity when these engines are intended to run on gasoline (E0) and/or a blend of up to 85% ethanol (E85). Typically, there is variability in the optimal VVT and spark values for every blend of gasoline-ethanol. This variability burdens the calibration task for these engines with many degrees of freedom (throttle, VVT, wastegate, fuel injection timing and duration, and spark timing). We first address the transient coupling between throttle and VVT in controlling the air charge. A model-based valve compensator is designed to improve the transient behavior of cylinder charge and torque during tip-ins and tip-outs with the VVT system transitions from set-points. An extremum seeking (ES) controller tuned based on the engine model demonstrates the convergence of both spark timing and VVT to the optimal values to achieve the best fuel efficiency. Advisors/Committee Members: Stefanopoulou, Anna G. (committee member), Filipi, Zoran S. (committee member), Grizzle, Jessy W. (committee member), Kokkolaras, Michael (committee member).

Subjects/Keywords: Closed-loop Combustion Control; Homogeneous Charge Compression Ignition (HCCI) Engine; TurboCharged (TC) Spark Ignition Direct Injection (SIDI) Engines With Variable Valve Timing (VVT); Mechanical Engineering; Engineering

…compared to the typical spark ignition or compression ignition engines. Despite of these benefits… …towards two gasoline engine technologies, namely, the Homogeneous Charge Compression Ignition… …x28;HCCI) engines, and the downsized TurboCharged (TC) Spark Ignition Direct… …this dissertation, a heated-air inlet homogeneous charge compression ignition (HCCI)… …Homogeneous Charge compression Ignition (HCCI) engine concept, also called Active Thermo…

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Lee, D. (2011). Closed-Loop Combustion Control of Advanced Internal Combustion Engines. (Doctoral Dissertation). University of Michigan. Retrieved from http://hdl.handle.net/2027.42/84501

Chicago Manual of Style (16^th Edition):

Lee, Donghoon. “Closed-Loop Combustion Control of Advanced Internal Combustion Engines.” 2011. Doctoral Dissertation, University of Michigan. Accessed February 27, 2021. http://hdl.handle.net/2027.42/84501.

MLA Handbook (7^th Edition):

Lee, Donghoon. “Closed-Loop Combustion Control of Advanced Internal Combustion Engines.” 2011. Web. 27 Feb 2021.

Vancouver:

Lee D. Closed-Loop Combustion Control of Advanced Internal Combustion Engines. [Internet] [Doctoral dissertation]. University of Michigan; 2011. [cited 2021 Feb 27]. Available from: http://hdl.handle.net/2027.42/84501.

Council of Science Editors:

Lee D. Closed-Loop Combustion Control of Advanced Internal Combustion Engines. [Doctoral Dissertation]. University of Michigan; 2011. Available from: http://hdl.handle.net/2027.42/84501

ETH Zürich

23. Vandersickel, Annelies. Two approaches to auto-ignition modelling for HCCI applications.

Degree: 2011, ETH Zürich

URL: http://hdl.handle.net/20.500.11850/43686

Subjects/Keywords: ZÜNDUNG + ZÜNDTEMPERATUR + ZÜNDEIGENSCHAFTEN (BRENNSTOFFTECHNOLOGIE); SHOCK WAVES (FLUID DYNAMICS); HOMOGENEOUS CHARGE COMPRESSION IGNITION, HCCI (INTERNAL COMBUSTION ENGINES); COMBUSTION, COMBUSTION RESIDUES (FUEL TECHNOLOGY); AUTO-OXIDATION + SELF-IGNITION + FLAMMABILITY + FLASH POINT (CHEMICAL KINETICS); VERBRENNUNGSKRAFTMASCHINEN (WÄRMEKRAFTMASCHINEN); ANTRIEBE DURCH VERBRENNUNGSMOTOREN (MASCHINENBAU); AUTOOXIDATION + SELBSTZÜNDUNG + ENTFLAMMBARKEIT + FLAMMPUNKT (CHEMISCHE KINETIK); INTERNAL COMBUSTION ENGINES (HEAT ENGINES); STOSSWELLEN + SCHOCKWELLEN (FLUIDDYNAMIK); NUMERISCHE SIMULATION UND MATHEMATISCHE MODELLRECHNUNG; HOMOGENE KOMPRESSIONSZÜNDUNG, HCCI (VERBRENNUNGSMOTOREN); NUMERICAL SIMULATION AND MATHEMATICAL MODELING; VERBRENNUNG, VERBRENNUNGSRÜCKSTÄNDE (BRENNSTOFFTECHNOLOGIE); DRIVES BY COMBUSTION ENGINES (MECHANICAL ENGINEERING); IGNITION PROPERTIES + IGNITION TEMPERATURE (FUEL TECHNOLOGY); info:eu-repo/classification/ddc/620; info:eu-repo/classification/ddc/530; Engineering & allied operations; Physics

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Vandersickel, A. (2011). Two approaches to auto-ignition modelling for HCCI applications. (Doctoral Dissertation). ETH Zürich. Retrieved from http://hdl.handle.net/20.500.11850/43686

Chicago Manual of Style (16^th Edition):

Vandersickel, Annelies. “Two approaches to auto-ignition modelling for HCCI applications.” 2011. Doctoral Dissertation, ETH Zürich. Accessed February 27, 2021. http://hdl.handle.net/20.500.11850/43686.

MLA Handbook (7^th Edition):

Vandersickel, Annelies. “Two approaches to auto-ignition modelling for HCCI applications.” 2011. Web. 27 Feb 2021.

Vancouver:

Vandersickel A. Two approaches to auto-ignition modelling for HCCI applications. [Internet] [Doctoral dissertation]. ETH Zürich; 2011. [cited 2021 Feb 27]. Available from: http://hdl.handle.net/20.500.11850/43686.

Council of Science Editors:

Vandersickel A. Two approaches to auto-ignition modelling for HCCI applications. [Doctoral Dissertation]. ETH Zürich; 2011. Available from: http://hdl.handle.net/20.500.11850/43686

24. Ιωάννου, Γεώργιος. Αριθμητική διερεύνηση των φάσεων εισαγωγής και συμπίεσης και στρατηγικές άμεσου ψεκασμού σε μηχανές εσωτερικής καύσης.

Degree: 2004, National Technical University of Athens (NTUA); Εθνικό Μετσόβιο Πολυτεχνείο (ΕΜΠ)

URL: http://hdl.handle.net/10442/hedi/16408

Subjects/Keywords: Εισαγωγή; Συμπίεση; Μηχανές εσωτερικής καύσης; Άμεσος ψεκασμός; Συστροφή; Στρωματοποίηση μείγματος; Χρονισμός ανάφλεξης; Βύθισμα βαλβίδων εισαγωγής; Intake; Compression strokes; Internal combustion engines; Direct injection; Swirl; Tumble; Charge stratification; Ignition timing; Valve lift

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APA (6^th Edition):

Ιωάννου, . �. (2004). Αριθμητική διερεύνηση των φάσεων εισαγωγής και συμπίεσης και στρατηγικές άμεσου ψεκασμού σε μηχανές εσωτερικής καύσης. (Thesis). National Technical University of Athens (NTUA); Εθνικό Μετσόβιο Πολυτεχνείο (ΕΜΠ). Retrieved from http://hdl.handle.net/10442/hedi/16408

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Ιωάννου, Γεώργιος. “Αριθμητική διερεύνηση των φάσεων εισαγωγής και συμπίεσης και στρατηγικές άμεσου ψεκασμού σε μηχανές εσωτερικής καύσης.” 2004. Thesis, National Technical University of Athens (NTUA); Εθνικό Μετσόβιο Πολυτεχνείο (ΕΜΠ). Accessed February 27, 2021. http://hdl.handle.net/10442/hedi/16408.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Ιωάννου, Γεώργιος. “Αριθμητική διερεύνηση των φάσεων εισαγωγής και συμπίεσης και στρατηγικές άμεσου ψεκασμού σε μηχανές εσωτερικής καύσης.” 2004. Web. 27 Feb 2021.

Vancouver:

Ιωάννου �. Αριθμητική διερεύνηση των φάσεων εισαγωγής και συμπίεσης και στρατηγικές άμεσου ψεκασμού σε μηχανές εσωτερικής καύσης. [Internet] [Thesis]. National Technical University of Athens (NTUA); Εθνικό Μετσόβιο Πολυτεχνείο (ΕΜΠ); 2004. [cited 2021 Feb 27]. Available from: http://hdl.handle.net/10442/hedi/16408.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Ιωάννου �. Αριθμητική διερεύνηση των φάσεων εισαγωγής και συμπίεσης και στρατηγικές άμεσου ψεκασμού σε μηχανές εσωτερικής καύσης. [Thesis]. National Technical University of Athens (NTUA); Εθνικό Μετσόβιο Πολυτεχνείο (ΕΜΠ); 2004. Available from: http://hdl.handle.net/10442/hedi/16408

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Open Access Theses and Dissertations