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University of Ghana
1.
Tuyizere, S.
Design and Construction of a Source Holder for the Determination of Source Strength of Iodine-125 Low Dose Rate Brachytherapy Sources.
Degree: 2019, University of Ghana
URL: http://ugspace.ug.edu.gh/handle/123456789/34480 
► Iodine-125 brachytherapy (BT) sources have gained a wide application in the treatment of prostate and intraocular cancers. Determination of the source strength of I-125 seeds…
(more)
▼ Iodine-125 brachytherapy (BT) sources have gained a wide application in the treatment of prostate and intraocular cancers. Determination of the source strength of I-125 seeds is, therefore, mandatory to ensure accurate and optimal dose delivery to a patient undergoing BT treatment. There is the need to verify source strength stated or provided by a manufacturer of any BT source prior to clinical use of the source in fulfillment of American Association of Physicists in Medicine and European Society for Therapeutic Radiology and Oncology (AAPM-ESTRO) recommendations for low energy BT sources. For low energy source, this process is sometimes ignored due to unavailability of appropriate equipment to facilitate the measurement of the source strength under clinical conditions. The present study sought to find ways of measuring source strengths of I-125 BT seed sources (model number STM1251) in use at Korle-Bu Teaching Hospital (KBTH) for permanent low dose rate (LDR) prostate BT with a well-type ionization dosimetry system, which is dedicated to high dose rate (HDR) BT source calibration. The BT seed implants are manufactured by Bard BT Inc., and are loaded in a Mick® cartridge which has maximum loading capacity of 15 seeds. To achieve this, a source holder which could be accommodated within the well-type ionization chamber (WTIC) was designed and constructed from Perspex (PMMA). The constructed source holder was designed to hold a whole cartridge of I-125 BT seeds within the WTIC to facilitate batch source strength measurement. The source holder ensuring reproducibility of I-125 seeds placements during source calibration, also enabled placement of a cartridge such that the point of concentration of activity of I-125 seeds coincided with the most sensitive part of the WTIC. Calibration coefficient was established for the dosimeter system (including source holder) through correlation and regression analysis of source strength measurements performed with the dosimeter system which were compared to source strengths with national institute of standards and technology (NIST) traceability provided by manufacturer of the I-125 seed sources. The obtained calibration coefficient was validated by performing I-125 seed source calibrations with the dosimetry system and comparing the source strengths with their counterparts stated by manufacturer of the I-125 seed sources. The dosimeter system was found to have calibration coefficient of 3.372 ± 0.200 ×1011U/A for the I-125 seed sources. The mean percentage deviation of the source strengths was found to be 2.588% which is in agreement with AAPM-ESTRO recommendations. The constructed low cost source holder is, therefore, recommended to be used for Bard I-125 seed source calibration with a HDR 1000 plus WTIC. This source calibration approach comes in handy for BT departments with limited resources.
Subjects/Keywords: Brachytherapy Sources;
LDR Brachytherapy Sources;
Prostate Cancer
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APA (6th Edition):
Tuyizere, S. (2019). Design and Construction of a Source Holder for the Determination of Source Strength of Iodine-125 Low Dose Rate Brachytherapy Sources.
(Masters Thesis). University of Ghana. Retrieved from http://ugspace.ug.edu.gh/handle/123456789/34480
Chicago Manual of Style (16th Edition):
Tuyizere, S. “Design and Construction of a Source Holder for the Determination of Source Strength of Iodine-125 Low Dose Rate Brachytherapy Sources.
” 2019. Masters Thesis, University of Ghana. Accessed January 26, 2021.
http://ugspace.ug.edu.gh/handle/123456789/34480.
MLA Handbook (7th Edition):
Tuyizere, S. “Design and Construction of a Source Holder for the Determination of Source Strength of Iodine-125 Low Dose Rate Brachytherapy Sources.
” 2019. Web. 26 Jan 2021.
Vancouver:
Tuyizere S. Design and Construction of a Source Holder for the Determination of Source Strength of Iodine-125 Low Dose Rate Brachytherapy Sources.
[Internet] [Masters thesis]. University of Ghana; 2019. [cited 2021 Jan 26].
Available from: http://ugspace.ug.edu.gh/handle/123456789/34480.
Council of Science Editors:
Tuyizere S. Design and Construction of a Source Holder for the Determination of Source Strength of Iodine-125 Low Dose Rate Brachytherapy Sources.
[Masters Thesis]. University of Ghana; 2019. Available from: http://ugspace.ug.edu.gh/handle/123456789/34480
2.
Diallo, Amadou thierno.
Etude de l’effet plasmonique des nanoparticules métalliques aléatoires sur les performances des diodes électroluminescences organiques. : Study of the plasmonic effect of random metallic nanoparticules on the performances of organic electroluminescence diodes.
Degree: Docteur es, Physique - Option Physique des matériaux et composants, 2018, Sorbonne Paris Cité
URL: http://www.theses.fr/2018USPCD079
► Ce travail de thèse porte sur l’utilisation des résonances plasmon de surface localisées (LSPR) de nanoparticules (NPs) métalliques pour améliorer les performances des diodes électroluminescentes…
(more)
▼ Ce travail de thèse porte sur l’utilisation des résonances plasmon de surface localisées (LSPR) de nanoparticules (NPs) métalliques pour améliorer les performances des diodes électroluminescentes organiques (OLED). Nous nous sommes, particulièrement, intéressés aux NPs dispersées aléatoirement par évaporation thermique lors du processus de fabrication des OLED. Dans la première partie du travail expérimental, nous nous sommes concentrés sur la fabrication et l’étude des NPs aléatoires d’argent. Les effets de leur position par rapport à la couche émissive (EML) ont été étudiés. Les résultats montrent des améliorations des performances électriques et optiques des OLED incorporant ces NPs pour des distances EML-NPs supérieures à 15 nm. Par la suite nous nous sommes intéressés à l’étude de la portée du champ plasmonique en développant une méthode originale qui se base sur l’utilisation d’une couche d’émission dans le rouge de type DCM incorporée dans l’EML de type Alq3 émettant dans le vert. En variant la position de cette fine couche de DCM, il était possible de sonder à l’échelle nanométrique la portée des effets des NPs d’Au notamment sur la variation de l’efficacité lumineuse de l’OLED. Enfin, nous avons étudié l'influence des nanoparticules (NPs) plasmoniques d’Al sur les performances d’une OLED bleue soumise à l'émission d'exciplexes.Les résultats montrent que dans le cas de l’OLED avec NPs d’Al, l'émission d'exciplexes est réduite grâce à l’effet LSPR et l'efficacité lumineuse du dispositif plasmonique indique une amélioration de53% par rapport à l’OLED sans NPs.
This thesis focuses on the utilization of localized surface plasmon resonances (LSPR) of metallic nanoparticles (NPs) to improve the performance of Organic Light Emitting Diodes (OLEDs). In particular, we focused on randomly dispersed NPs by thermal evaporation during the OLED fabrication process. In the first part of the experimental work, we focused on the fabrication and study of random NPs of silver. The effects of their position with respect to the emissive layer (EML) were studied. The results show improvements in electrical and optical performance of OLEDs incorporating these NPs for EML-NPs distances greater than 15 nm. Subsequently, we were interested in the study of the plasmonic field range action by developing an original method based on the use of a DCM red-emitting layer embedded in Alq3 green EML. By varying the position of this thin layer of DCM, it was possible to probe at the nanoscale the extent of the effects of Au NPs in particular on the variation of the luminous efficiency of the OLED. Finally, we studied the influence of Al plasmonic nanoparticles (NPs) on the performance of a blue OLED subjected to the emission of exciplexes. The results show that in the case of OLED with Al-NPs, the emission of exciplexes is reduced thanks to the LSPR effect and the luminous efficiency of the plasmonic device indicates a 53% improvement over that of the OLED without NPs.
Advisors/Committee Members: Boudrioua, Azzedine (thesis director).
Subjects/Keywords: Sources organiques; Exciplexe; Organic sources; Exciplex
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APA (6th Edition):
Diallo, A. t. (2018). Etude de l’effet plasmonique des nanoparticules métalliques aléatoires sur les performances des diodes électroluminescences organiques. : Study of the plasmonic effect of random metallic nanoparticules on the performances of organic electroluminescence diodes. (Doctoral Dissertation). Sorbonne Paris Cité. Retrieved from http://www.theses.fr/2018USPCD079
Chicago Manual of Style (16th Edition):
Diallo, Amadou thierno. “Etude de l’effet plasmonique des nanoparticules métalliques aléatoires sur les performances des diodes électroluminescences organiques. : Study of the plasmonic effect of random metallic nanoparticules on the performances of organic electroluminescence diodes.” 2018. Doctoral Dissertation, Sorbonne Paris Cité. Accessed January 26, 2021.
http://www.theses.fr/2018USPCD079.
MLA Handbook (7th Edition):
Diallo, Amadou thierno. “Etude de l’effet plasmonique des nanoparticules métalliques aléatoires sur les performances des diodes électroluminescences organiques. : Study of the plasmonic effect of random metallic nanoparticules on the performances of organic electroluminescence diodes.” 2018. Web. 26 Jan 2021.
Vancouver:
Diallo At. Etude de l’effet plasmonique des nanoparticules métalliques aléatoires sur les performances des diodes électroluminescences organiques. : Study of the plasmonic effect of random metallic nanoparticules on the performances of organic electroluminescence diodes. [Internet] [Doctoral dissertation]. Sorbonne Paris Cité; 2018. [cited 2021 Jan 26].
Available from: http://www.theses.fr/2018USPCD079.
Council of Science Editors:
Diallo At. Etude de l’effet plasmonique des nanoparticules métalliques aléatoires sur les performances des diodes électroluminescences organiques. : Study of the plasmonic effect of random metallic nanoparticules on the performances of organic electroluminescence diodes. [Doctoral Dissertation]. Sorbonne Paris Cité; 2018. Available from: http://www.theses.fr/2018USPCD079
3.
Clement, Nicolas.
Contribution à la pensée juridique des sources d'obligation : Etude de doctrine à l'heure de la réforme du Code civil : The sources of obligations at the time of the french civil Code reform : A theorization essay.
Degree: Docteur es, Doctorat Droit Privé, 2018, Université Grenoble Alpes (ComUE)
URL: http://www.theses.fr/2018GREAA006
► Le bicentenaire du Code civil était l’occasion du bilan ; la réforme du Code civil ouvre le temps des perspectives. Ou plutôt, d’une perspective :…
(more)
▼ Le bicentenaire du Code civil était l’occasion du bilan ; la réforme du Code civil ouvre le temps des perspectives. Ou plutôt, d’une perspective : celle des sources d’obligations qui, bien qu’elle fixe la ligne des dispositions du nouveau Titre III du Livre III, n’en reste pas moins à dessiner à leur image. L’affirmation peut surprendre. Il est en effet souvent soutenu que la réforme s’inscrit, à bien des égards, dans la continuité, et qu’il n’est de notions aux contours mieux tracés au cours de l’histoire que celles du contrat, du quasi-contrat, de la responsabilité civile, ou de l’engagement unilatéral de volonté. Qui ne voit, pourtant, que cette impression d’une inébranlable constance pourrait bien tenir de l’indistinction d’un droit nouveau qui se meut encore dans les limbes ?Le présent travail entend profiter de la césure introduite par la réforme pour opérer un retour sur nos doctrines. À l’inverse du praticien, qui en redoute les soubresauts, le théoricien ne craint pas les mouvements du droit, qui lui offrent de contempler les dynamiques de fond à l’œuvre. L’étude des évolutions consommées par la réforme du droit des obligations, menée dans une double optique historique et systématique, laissera ainsi apparaître, tant au plan particulier de chaque source qu’à leur conjonction, d’importants bouleversements qui pourraient bien interdire, dans l’avenir, de penser en théorie l’ouvrage rénové autrement qu’à travers un nouveau paradigme
The bicentenary of the french civil Code was the occasion for an assessment ; with the reform of the french civil Code it’s time to look ahead to the prospects. From that point of view, one of the major preoccupations should be the definition of the sources of obligations, which determines the implementation of the new law of obligations. This assertion can be surprising. It is often suggested that the reform mostly provides continuity and that there are no other notions as known as contract, quasi-contract, civil liability or commitment by unilateral will. Yet, how can we fail to see that this impression of an unwavering consistency could be an effect of the new provisions’ shadows ?This work aims to take advantage of the gap of the reform to come back to our doctrines. Unlike practitioner, who fears instability, theoretician is not afraid by the motions of the law, which provide him to consider their background. The study of the evolutions implied by the law of obligations’ reform, conducted through an historical and systematic lens, will thus reveal, at the level of each source and at the conjunction of all, significant upheavals which would probably require to think about the law of obligations differently that we used to do
Advisors/Committee Members: Pignarre, Geneviève (thesis director), Gout, Olivier (thesis director).
Subjects/Keywords: Sources; Obligations; Réforme; Sources; Obligation; Reform; 340
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APA ·
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APA (6th Edition):
Clement, N. (2018). Contribution à la pensée juridique des sources d'obligation : Etude de doctrine à l'heure de la réforme du Code civil : The sources of obligations at the time of the french civil Code reform : A theorization essay. (Doctoral Dissertation). Université Grenoble Alpes (ComUE). Retrieved from http://www.theses.fr/2018GREAA006
Chicago Manual of Style (16th Edition):
Clement, Nicolas. “Contribution à la pensée juridique des sources d'obligation : Etude de doctrine à l'heure de la réforme du Code civil : The sources of obligations at the time of the french civil Code reform : A theorization essay.” 2018. Doctoral Dissertation, Université Grenoble Alpes (ComUE). Accessed January 26, 2021.
http://www.theses.fr/2018GREAA006.
MLA Handbook (7th Edition):
Clement, Nicolas. “Contribution à la pensée juridique des sources d'obligation : Etude de doctrine à l'heure de la réforme du Code civil : The sources of obligations at the time of the french civil Code reform : A theorization essay.” 2018. Web. 26 Jan 2021.
Vancouver:
Clement N. Contribution à la pensée juridique des sources d'obligation : Etude de doctrine à l'heure de la réforme du Code civil : The sources of obligations at the time of the french civil Code reform : A theorization essay. [Internet] [Doctoral dissertation]. Université Grenoble Alpes (ComUE); 2018. [cited 2021 Jan 26].
Available from: http://www.theses.fr/2018GREAA006.
Council of Science Editors:
Clement N. Contribution à la pensée juridique des sources d'obligation : Etude de doctrine à l'heure de la réforme du Code civil : The sources of obligations at the time of the french civil Code reform : A theorization essay. [Doctoral Dissertation]. Université Grenoble Alpes (ComUE); 2018. Available from: http://www.theses.fr/2018GREAA006
4.
Ou, Chouly.
Floodplain River Foodwebs in the Lower Mekong Basin.
Degree: 2013, Texas Digital Library
URL: http://hdl.handle.net/1969;
http://hdl.handle.net/2249.1/66669
► The Mekong River is one of the world???s most important rivers in terms of its size, economic importance, cultural significance, productivity, and biodiversity. The Mekong…
(more)
▼ The Mekong River is one of the world???s most important rivers in terms of its size, economic importance, cultural significance, productivity, and biodiversity. The Mekong River???s fisheries and biodiversity are threatened by major hydropower development and over-exploitation. Knowledge of river food web ecology is essential for management of the impacts created by anthropogenic activities on plant and animal populations and ecosystems. In the present study, I surveyed four tropical rivers in Cambodia within the Mekong River Basin. I examined the basal production
sources supporting fish biomass in the four rivers during the dry and wet seasons and explored the relationship between trophic position and body size of fish at various taxonomic levels, among local species assemblages, and across trophic guilds. I used stable isotopes of carbon and nitrogen to estimate fish trophic levels and the principal primary production
sources supporting fishes. My study provides evidence that food web dynamics in tropical rivers undergo significant seasonal shifts and emphasizes that river food webs are altered by dams and flow regulation. Seston and benthic algae were the most important production
sources supporting fish biomass during the dry season, and riparian macrophytes appeared to be the most important production source supporting fishes during the wet season. In the river with strong flow regulation from an upstream impoundment, seston and benthic algae were even more important production
sources supporting fishes during the dry season. My findings challenge the Eltonian theory of size-based trophic structure in food webs and also contradict the broadly accepted prediction of the fishing-down-the-food-web concept. Eltonian and fishing-down-the-food-web concepts propose that trophic level is strongly correlated with body size, but I found no significant correlation between body size and trophic position for fish assemblages. Results suggest that body size distributions are not useful for prediction the trophic structure of communities with diverse detritivores, omnivores and insectivores, but that it is a good predictor of trophic position among piscivorous fishes.
Advisors/Committee Members: Winemiller, Kirk O (advisor).
Subjects/Keywords: Primary production sources
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APA (6th Edition):
Ou, C. (2013). Floodplain River Foodwebs in the Lower Mekong Basin. (Thesis). Texas Digital Library. Retrieved from http://hdl.handle.net/1969; http://hdl.handle.net/2249.1/66669
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):
Ou, Chouly. “Floodplain River Foodwebs in the Lower Mekong Basin.” 2013. Thesis, Texas Digital Library. Accessed January 26, 2021.
http://hdl.handle.net/1969; http://hdl.handle.net/2249.1/66669.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Ou, Chouly. “Floodplain River Foodwebs in the Lower Mekong Basin.” 2013. Web. 26 Jan 2021.
Vancouver:
Ou C. Floodplain River Foodwebs in the Lower Mekong Basin. [Internet] [Thesis]. Texas Digital Library; 2013. [cited 2021 Jan 26].
Available from: http://hdl.handle.net/1969; http://hdl.handle.net/2249.1/66669.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Ou C. Floodplain River Foodwebs in the Lower Mekong Basin. [Thesis]. Texas Digital Library; 2013. Available from: http://hdl.handle.net/1969; http://hdl.handle.net/2249.1/66669
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
University of Namibia
5.
Balhao, Anna M.
Exploring strategies to fund and manage school development funds in public secondary schools in the Khomas region in Namibia
.
Degree: 2016, University of Namibia
URL: http://hdl.handle.net/11070/2057
► Since Independence the government of the day strives towards quality education for all. Educational financial constraint issues came to the fore, when the announcement was…
(more)
▼ Since Independence the government of the day strives towards quality education for all. Educational financial constraint issues came to the fore, when the announcement was made by the Minister of Finance that the paying of compulsory school fees for secondary education will be abolished as from the beginning of the 2016 academic year. Although about 25% of the National Budget is for education, only about 20% of that amount is for education resources and day-to-day expenses. This required that schools should find alternative funds to finance the School Development Fund, since various authors indicated that funds supplied by government are just not enough for effective and efficient education delivery. The study therefore aims to identify financial sources and financial management strategies to fund School Development Funds. The study will also investigate to what extend public secondary schools are aware of these resources and if the human resources have the necessary expertise to manage the School Development Fund effectively.
The qualitative research design was used. Three public secondary schools, excluding special schools, from the twenty seven registered schools in the Khomas Region were selected. One school each was randomly selected from the low income group, the average income group and the high income group, using the maximum variation sampling method, whereby financial information from previous years was used. The major findings of this study were that principals do not have the financial knowledge and skills to find or efficiently manage various financial resources, like sponsors, donors, alumni, crowd funding, thrift shops, On-Line-Landing-Pages and investments, as well as investing these funds for sustainable income, which is available for effective education delivery. The study recommended that persons with due knowledge should be appointed at schools and that their job descriptions extended in order to take advantage from the various financing sources obtainable by schools. Secondly, principals should receive in-depth financial training and have more authority in the financial decision making by using an effective School Management Model. Lastly, management of school buildings and facilities should be part of the Ministry of Education, Arts and Culture who should decentralise the control there-of.
Subjects/Keywords: Sources of funds
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APA ·
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Export
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APA (6th Edition):
Balhao, A. M. (2016). Exploring strategies to fund and manage school development funds in public secondary schools in the Khomas region in Namibia
. (Thesis). University of Namibia. Retrieved from http://hdl.handle.net/11070/2057
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):
Balhao, Anna M. “Exploring strategies to fund and manage school development funds in public secondary schools in the Khomas region in Namibia
.” 2016. Thesis, University of Namibia. Accessed January 26, 2021.
http://hdl.handle.net/11070/2057.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Balhao, Anna M. “Exploring strategies to fund and manage school development funds in public secondary schools in the Khomas region in Namibia
.” 2016. Web. 26 Jan 2021.
Vancouver:
Balhao AM. Exploring strategies to fund and manage school development funds in public secondary schools in the Khomas region in Namibia
. [Internet] [Thesis]. University of Namibia; 2016. [cited 2021 Jan 26].
Available from: http://hdl.handle.net/11070/2057.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Balhao AM. Exploring strategies to fund and manage school development funds in public secondary schools in the Khomas region in Namibia
. [Thesis]. University of Namibia; 2016. Available from: http://hdl.handle.net/11070/2057
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
University of Hawaii – Manoa
6.
Gemba, Kay Leonard.
Characterization of underwater acoustic sources recorded in reverberant environments with application to scuba signatures.
Degree: 2015, University of Hawaii – Manoa
URL: http://hdl.handle.net/10125/101075
► Ph.D. University of Hawaii at Manoa 2014.
The ability to accurately characterize an underwater sound source is an important prerequisite for many applications including detection,…
(more)
▼ Ph.D. University of Hawaii at Manoa 2014.
The ability to accurately characterize an underwater sound source is an important prerequisite for many applications including detection, classification, monitoring and mitigation. Unfortunately, anechoic underwater recording environments, required to make ideal recordings, are generally not available. Current methods adjust source recordings with spatially averaged estimates of reverberant levels. However, adjustments can introduce significant errors due to a high degree of energy variability in reverberant enclosures and solutions are inherently limited to incoherent approximations. This dissertation introduces an approach towards a practical, improved procedure to obtain an anechoic estimate of an unknown source recorded in a reverberant environment. Corresponding research is presented in three self-contained chapters. An anechoic estimate of the source is obtained by equalizing the recording with the inverse of the channel's impulse response (IR). The IR is deconvolved using a broadband logarithmic excitation signal. The length of the IR is estimated using methods borrowed from room acoustics and inversion of non-minimum phase IR is accomplished in the least-squares sense. The proposed procedure is validated by several experiments conducted in a reverberant pool environment. Results indicate that the energy of control sources can be recovered coherently and incoherently with root-mean-square error (RMSE) of-70 dB (10-70 kHz band). The proposed method is subsequently applied to four recorded SCUBA configurations. Results indicate that reverberation added as much as 6.8 dB of energy. Mean unadjusted sound pressure levels (0.3-80 kHz band) were 130 5.9 dB re 1 Pa at 1 m. While the dereverberation method is applied here to SCUBA signals, it is generally applicable to other sources if the impulse response of the recording channel can be obtained separately. This dissertation also presents an approach to separate all coloration from the deconvolved IR. This method can be used to estimate the channel's IR or the magnitude spectrum of the combined electrical equipment. The procedure is validated using synthetic results of an imagesource model and the channel's IR is recovered over the full band with a RMSE of-31 dB.
Subjects/Keywords: underwater acoustic sources
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APA (6th Edition):
Gemba, K. L. (2015). Characterization of underwater acoustic sources recorded in reverberant environments with application to scuba signatures. (Thesis). University of Hawaii – Manoa. Retrieved from http://hdl.handle.net/10125/101075
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):
Gemba, Kay Leonard. “Characterization of underwater acoustic sources recorded in reverberant environments with application to scuba signatures.” 2015. Thesis, University of Hawaii – Manoa. Accessed January 26, 2021.
http://hdl.handle.net/10125/101075.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Gemba, Kay Leonard. “Characterization of underwater acoustic sources recorded in reverberant environments with application to scuba signatures.” 2015. Web. 26 Jan 2021.
Vancouver:
Gemba KL. Characterization of underwater acoustic sources recorded in reverberant environments with application to scuba signatures. [Internet] [Thesis]. University of Hawaii – Manoa; 2015. [cited 2021 Jan 26].
Available from: http://hdl.handle.net/10125/101075.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Gemba KL. Characterization of underwater acoustic sources recorded in reverberant environments with application to scuba signatures. [Thesis]. University of Hawaii – Manoa; 2015. Available from: http://hdl.handle.net/10125/101075
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Oregon State University
7.
Halamay, Douglas A.
Methods for evaluating the impact of renewable resource variability on grid operation and planning.
Degree: MS, Electrical and Computer Engineering, 2010, Oregon State University
URL: http://hdl.handle.net/1957/18830
► With the recent interest in increasing the penetration of renewable energy sources onto the power grid, there has been an unprecedented rapid deployment of wind…
(more)
▼ With the recent interest in increasing the penetration of renewable energy
sources onto the power grid, there has been an unprecedented rapid deployment of wind generation, especially in the US Pacific Northwest. While wind farm developers have continued to expand their operations, power system operators are left to deal with the consequences – specifically, the uncontrollable, variable nature of the wind. While this variability can be quantified using traditional statistical measures, these statistics are often not directly usable by system operators. Composed of two papers, this research explores other methods for evaluating the variability of renewable resources to better understand their impact on the grid. The first paper examines how renewable penetration can be increased by diversifying the types of resources used (e.g., integrating an equal mix of wind, solar, and ocean wave power). The second paper builds off of the first by developing a solution to the lack of available power generation data necessary to conduct this research and then by using generated synthetic data to examine the impacts of increasing renewable resource penetration levels. Both papers point to the value of a diversified renewable energy portfolio, including high-levels of wind, solar, and ocean wave power generation.
Advisors/Committee Members: Brekken, Ted K.A. (advisor), von Jouanne, Annette (committee member).
Subjects/Keywords: Renewable Energy; Renewable energy sources
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Manager
APA (6th Edition):
Halamay, D. A. (2010). Methods for evaluating the impact of renewable resource variability on grid operation and planning. (Masters Thesis). Oregon State University. Retrieved from http://hdl.handle.net/1957/18830
Chicago Manual of Style (16th Edition):
Halamay, Douglas A. “Methods for evaluating the impact of renewable resource variability on grid operation and planning.” 2010. Masters Thesis, Oregon State University. Accessed January 26, 2021.
http://hdl.handle.net/1957/18830.
MLA Handbook (7th Edition):
Halamay, Douglas A. “Methods for evaluating the impact of renewable resource variability on grid operation and planning.” 2010. Web. 26 Jan 2021.
Vancouver:
Halamay DA. Methods for evaluating the impact of renewable resource variability on grid operation and planning. [Internet] [Masters thesis]. Oregon State University; 2010. [cited 2021 Jan 26].
Available from: http://hdl.handle.net/1957/18830.
Council of Science Editors:
Halamay DA. Methods for evaluating the impact of renewable resource variability on grid operation and planning. [Masters Thesis]. Oregon State University; 2010. Available from: http://hdl.handle.net/1957/18830
University of Pretoria
8.
[No author].
Renewable energy : benefits of converting urban
households to solar water heating
.
Degree: 2010, University of Pretoria
URL: http://upetd.up.ac.za/thesis/available/etd-03302010-145656/
► Modern man’s addiction to fossil fuels or non-renewable energy is the key reason behind the unprecedented economic growth experienced globally over the past 100 years.…
(more)
▼ Modern man’s addiction to fossil fuels or
non-renewable energy is the key reason behind the unprecedented
economic growth experienced globally over the past 100 years.
However, by definition these energy resources are not only finite,
but their widespread use is causing massive environmental damage
through air pollution and its associated impact on people’s health,
as well as the emission of greenhouse gases which are attributed to
the unprecedented rate of global warming - And it is for this
reason that international initiatives such as the Kyoto Protocol,
(which South Africa is a signatory of), aim to mitigate global
warming by reducing member countries’ CO2 emissions.Simultaneously,
South Africa (SA) is experiencing its own electricity supply
problems due to under investment in the sector. While new power
plants are being built, they utilize non-renewable energy
sources
and will take time to build (up to 5 years). It is also important
to note that due to large coal reserves, South Africans enjoy
amongst the lowest electricity tariffs in the world, but SA is
amongst this planet’s biggest per capita polluters.The research
thus aims to identify whether high income households are wasteful
users of electricity - due to historic low prices, lack of
knowledge regarding energy efficiency and the impact that
electricity generation has on the environment - while at the same
time determining the group's perception of domestic solar water
heaters (DSWH), given our country’s favourable
climaticconditions.
Advisors/Committee Members: Mr R Shipp (advisor).
Subjects/Keywords: UCTD;
Renewable energy sources
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Manager
APA (6th Edition):
author], [. (2010). Renewable energy : benefits of converting urban
households to solar water heating
. (Masters Thesis). University of Pretoria. Retrieved from http://upetd.up.ac.za/thesis/available/etd-03302010-145656/
Chicago Manual of Style (16th Edition):
author], [No. “Renewable energy : benefits of converting urban
households to solar water heating
.” 2010. Masters Thesis, University of Pretoria. Accessed January 26, 2021.
http://upetd.up.ac.za/thesis/available/etd-03302010-145656/.
MLA Handbook (7th Edition):
author], [No. “Renewable energy : benefits of converting urban
households to solar water heating
.” 2010. Web. 26 Jan 2021.
Vancouver:
author] [. Renewable energy : benefits of converting urban
households to solar water heating
. [Internet] [Masters thesis]. University of Pretoria; 2010. [cited 2021 Jan 26].
Available from: http://upetd.up.ac.za/thesis/available/etd-03302010-145656/.
Council of Science Editors:
author] [. Renewable energy : benefits of converting urban
households to solar water heating
. [Masters Thesis]. University of Pretoria; 2010. Available from: http://upetd.up.ac.za/thesis/available/etd-03302010-145656/
9.
Pons, Josselin.
Identification robuste de sources vibratoires par méthode inverse : Dynamique et instabilités d'un écoulement dans un anévrisme artériel.
Degree: Docteur es, Mécanique, Energétique, Génie Civil et Acoustique, 2017, Lyon
URL: http://www.theses.fr/2017LYSEE048
► Pour l’industrie automobile, l’identification de sources vibratoires dans un but d’amélioration du confort acoustique est un enjeu majeur. L’identification d’une source vibratoire se résume le…
(more)
▼ Pour l’industrie automobile, l’identification de
sources vibratoires dans un but d’amélioration du confort acoustique est un enjeu majeur. L’identification d’une source vibratoire se résume le plus souvent à la connaissance de sa matrice des fonctions de transfert et des efforts vibratoires au niveau des points de fixation entre la source et son récepteur. Le moyen le plus simple pour effectuer des mesures d’efforts vibratoires est de réaliser des mesures directement à l’aide de capteurs d’effort. Cependant, pour diverses raisons pratiques (accessibilité, encombrement... ), ces efforts vibratoires sont bien souvent impossibles à mesurer de manière directe. Dans ces circonstances on a alors recours à une mesure indirecte des efforts à partir des réponses de la structure en fonctionnement et d’un modèle dynamique de la structure. La mise en œuvre d’une telle démarche est souvent difficile car les problèmes inverses sont en général mal posés au sens d’Hadamard. L’objectif du présent travail de thèse a été l’amélioration de la robustesse de l’identification de source vibratoire par méthode inverse. Le manuscrit est découpé en cinq chapitres : — Le premier chapitre aborde en détail la problématique de la reconstruction des efforts par méthode inverse. On y présente un état de l’art permettant d’appréhender les enjeux et les difficultés de la reconstruction des efforts par méthode inverse. Nous explicitons également dans ce chapitre un certain nombre de relations permettant le couplage des matrices des fonctions de transfert, la caractérisation de la réceptance d’une source vibratoire, la reconstruction des efforts transmis à l’interface, des "réponses libres" et des "forces de blocage" dans le cas général. — Dans le second chapitre sont présentées, dans un premier temps, certaines des méthodes de régularisation du problème inverse les plus utilisées puis dans un second temps nous proposons deux approches de régularisation originales : — La méthode de sélection de points de mesure "CIM". L’objectif de cette méthode est de positionner de manière optimale un ensemble de capteurs de réponse sur la structure étudiée. La méthode opère par itérations initialisées par une matrice des fonctions de transfert contenant tous les points de mesure envisageables et en éliminant progressivement ces derniers pour ne conserver au final que les points de mesure offrant le maximum d’information. — Afin d’éliminer le bruit pouvant entacher les fonctions de transfert et donc améliorer le conditionnement du problème, nous proposons de les lisser à l’aide d’une décomposition modale. Pour ce faire, nous exprimons les fonctions de transfert en fonction des paramètres modaux de la structure, obtenus à l’aide d’une analyse modale expérimentale. Ces méthodes de régularisation ont été validées sur un système numérique simple mais représentatif de la transmission d’efforts vibratoires. — Dans le troisième chapitre nous abordons la prise en compte des incertitudes lors de la reconstruction des efforts par méthode inverse. Nous y présentons en détail la…
Advisors/Committee Members: Jézéquel, Louis (thesis director), Besset, Sébastien (thesis director).
Subjects/Keywords: Sources vibratoires; Vibratory forces
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Manager
APA (6th Edition):
Pons, J. (2017). Identification robuste de sources vibratoires par méthode inverse : Dynamique et instabilités d'un écoulement dans un anévrisme artériel. (Doctoral Dissertation). Lyon. Retrieved from http://www.theses.fr/2017LYSEE048
Chicago Manual of Style (16th Edition):
Pons, Josselin. “Identification robuste de sources vibratoires par méthode inverse : Dynamique et instabilités d'un écoulement dans un anévrisme artériel.” 2017. Doctoral Dissertation, Lyon. Accessed January 26, 2021.
http://www.theses.fr/2017LYSEE048.
MLA Handbook (7th Edition):
Pons, Josselin. “Identification robuste de sources vibratoires par méthode inverse : Dynamique et instabilités d'un écoulement dans un anévrisme artériel.” 2017. Web. 26 Jan 2021.
Vancouver:
Pons J. Identification robuste de sources vibratoires par méthode inverse : Dynamique et instabilités d'un écoulement dans un anévrisme artériel. [Internet] [Doctoral dissertation]. Lyon; 2017. [cited 2021 Jan 26].
Available from: http://www.theses.fr/2017LYSEE048.
Council of Science Editors:
Pons J. Identification robuste de sources vibratoires par méthode inverse : Dynamique et instabilités d'un écoulement dans un anévrisme artériel. [Doctoral Dissertation]. Lyon; 2017. Available from: http://www.theses.fr/2017LYSEE048
Ryerson University
10.
Regmi, Udaya Raj.
Energy efficient operation of a base transceiver station using markov decision process.
Degree: 2017, Ryerson University
URL: https://digital.library.ryerson.ca/islandora/object/RULA%3A6553
► Around 3.15% of the total world energy consumption accounts for Information and Com- munication Technology (ICT) sector. ICT's contribution to global greenhouse gas emission is…
(more)
▼ Around 3.15% of the total world energy consumption accounts for Information and Com-
munication Technology (ICT) sector. ICT's contribution to global greenhouse gas emission is expected to double in the coming five years.
Base transceiver station (BTS), an important but energy hungry component of access network in a cellular communication system, is usually resourced to serve busy hour traffic but remains under-utilized for most of the 24-hour period irrespective of the traffic load.
Hence, self organizing networks (SON) that react to the variable traffic load are being studied to minimize energy consumption without compromising the QoS of the network.
Discrete time Markov decision process (DTMDP) as an optimization tool to manage the operation of BTS is investigated in this thesis. MDP _nds an optimal policy that takes state specific optimal decisions, i.e. actions, and gets immediate rewards which maximizes the long term expected reward. The rewards obtained are the power savings when BTS operates as a SON by means of dynamic sectorization against the operation of BTS in uppermost mode irrespective of the traffic load. Further, transition cost to address mode switching cost and delay cost to address QoS are also discussed and elaborated through appropriate simulation to realize the actual energy savings.
Subjects/Keywords: Energy conservation; Renewable energy sources
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CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Regmi, U. R. (2017). Energy efficient operation of a base transceiver station using markov decision process. (Thesis). Ryerson University. Retrieved from https://digital.library.ryerson.ca/islandora/object/RULA%3A6553
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):
Regmi, Udaya Raj. “Energy efficient operation of a base transceiver station using markov decision process.” 2017. Thesis, Ryerson University. Accessed January 26, 2021.
https://digital.library.ryerson.ca/islandora/object/RULA%3A6553.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Regmi, Udaya Raj. “Energy efficient operation of a base transceiver station using markov decision process.” 2017. Web. 26 Jan 2021.
Vancouver:
Regmi UR. Energy efficient operation of a base transceiver station using markov decision process. [Internet] [Thesis]. Ryerson University; 2017. [cited 2021 Jan 26].
Available from: https://digital.library.ryerson.ca/islandora/object/RULA%3A6553.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Regmi UR. Energy efficient operation of a base transceiver station using markov decision process. [Thesis]. Ryerson University; 2017. Available from: https://digital.library.ryerson.ca/islandora/object/RULA%3A6553
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Ryerson University
11.
Roy, Pallavi.
Mutagenesis of novel clostridial fusants for enhanced green biobutanol production using renewable and sustainable feedstock.
Degree: 2014, Ryerson University
URL: https://digital.library.ryerson.ca/islandora/object/RULA%3A3688
► Biobutanol was produced in the present work through Simultaneous Saccharification and Fermentation (SSF) of cellulosic feedstock (i.e. wheat straw (WS)) and algal biomass. Novel Clostridial…
(more)
▼ Biobutanol was produced in the present work through Simultaneous Saccharification and Fermentation (SSF) of cellulosic feedstock (i.e. wheat straw (WS)) and algal biomass. Novel Clostridial fused strains developed earlier underwent mutagenesis for strain enhancement using UV and chemical mutagen (ethyl methanesulphonate). Results for mutated strains showed higher biobutanol production of 14.6 g/L, with total acetone, biobutanol and ethanol (ABE) yield of 0.6 g/g. Moreover, mutated strains showed tolerance to biobutanol toxicity at 15g/L; ~15% increase over literature values. Algal biomass was pre-treated using different thermal, chemical and enzymatic pre-treatments to define its biobutanol production potential compared to WS. A total sugar concentration of 26.4 g/L and glucose concentration of 12.48 g/L was obtained with enzymatic pre-treatment. Biobutanol production through SSF of algal biomass showed maximum concentration of biobutanol of 7.52 g/L with a total ABE yield of 0.48 g/g.
Advisors/Committee Members: Ryerson University (Degree grantor).
Subjects/Keywords: Renewable energy sources; Sustainable engineering
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Roy, P. (2014). Mutagenesis of novel clostridial fusants for enhanced green biobutanol production using renewable and sustainable feedstock. (Thesis). Ryerson University. Retrieved from https://digital.library.ryerson.ca/islandora/object/RULA%3A3688
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):
Roy, Pallavi. “Mutagenesis of novel clostridial fusants for enhanced green biobutanol production using renewable and sustainable feedstock.” 2014. Thesis, Ryerson University. Accessed January 26, 2021.
https://digital.library.ryerson.ca/islandora/object/RULA%3A3688.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Roy, Pallavi. “Mutagenesis of novel clostridial fusants for enhanced green biobutanol production using renewable and sustainable feedstock.” 2014. Web. 26 Jan 2021.
Vancouver:
Roy P. Mutagenesis of novel clostridial fusants for enhanced green biobutanol production using renewable and sustainable feedstock. [Internet] [Thesis]. Ryerson University; 2014. [cited 2021 Jan 26].
Available from: https://digital.library.ryerson.ca/islandora/object/RULA%3A3688.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Roy P. Mutagenesis of novel clostridial fusants for enhanced green biobutanol production using renewable and sustainable feedstock. [Thesis]. Ryerson University; 2014. Available from: https://digital.library.ryerson.ca/islandora/object/RULA%3A3688
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
University of Alberta
12.
Jiang, Chen.
A Probabilistic Bottom-up Technique for Modeling and
Simulation of Residential Distributed Harmonic Sources.
Degree: MS, Department of Electrical and Computer
Engineering, 2011, University of Alberta
URL: https://era.library.ualberta.ca/files/x346d536v
► The proliferation of energy-efficient appliances and modern consumer electronics has resulted in numerous power-electronic-based harmonic sources penetrating into residential households. Due to the huge number…
(more)
▼ The proliferation of energy-efficient appliances and
modern consumer electronics has resulted in numerous
power-electronic-based harmonic sources penetrating into
residential households. Due to the huge number and wide adoption of
these new harmonic sources, techniques for determining the
cumulative harmonic impact of them are urgently needed. A
probabilistic bottom-up technique is proposed in this thesis to
model aggregated harmonic sources and other linear loads. This
technique not only takes into account appliances’ daily usage
pattern as well as household activities, but also provides the
flexibility to represent future market trends and policy changes.
By modeling the residential distribution systems with this
technique, one can estimate how serious the harmonic impacts become
when more harmonic-producing appliances penetrate into the
residential loads. The proposed technique has also been applied to
evaluate the power quality impact of charging plug-in hybrid
electric vehicles (PHEVs) on residential distribution
systems.
Subjects/Keywords: residential distributed harmonic sources
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APA (6th Edition):
Jiang, C. (2011). A Probabilistic Bottom-up Technique for Modeling and
Simulation of Residential Distributed Harmonic Sources. (Masters Thesis). University of Alberta. Retrieved from https://era.library.ualberta.ca/files/x346d536v
Chicago Manual of Style (16th Edition):
Jiang, Chen. “A Probabilistic Bottom-up Technique for Modeling and
Simulation of Residential Distributed Harmonic Sources.” 2011. Masters Thesis, University of Alberta. Accessed January 26, 2021.
https://era.library.ualberta.ca/files/x346d536v.
MLA Handbook (7th Edition):
Jiang, Chen. “A Probabilistic Bottom-up Technique for Modeling and
Simulation of Residential Distributed Harmonic Sources.” 2011. Web. 26 Jan 2021.
Vancouver:
Jiang C. A Probabilistic Bottom-up Technique for Modeling and
Simulation of Residential Distributed Harmonic Sources. [Internet] [Masters thesis]. University of Alberta; 2011. [cited 2021 Jan 26].
Available from: https://era.library.ualberta.ca/files/x346d536v.
Council of Science Editors:
Jiang C. A Probabilistic Bottom-up Technique for Modeling and
Simulation of Residential Distributed Harmonic Sources. [Masters Thesis]. University of Alberta; 2011. Available from: https://era.library.ualberta.ca/files/x346d536v
13.
Osman, Mustafe Adam.
Feasibility study of renewable energy-based microgrid hybrid system in Berbera Somaliland.
Degree: Faculty of Electrical and Electronic Engineering, 2018, Universiti Tun Hussein Onn Malaysia
URL: http://eprints.uthm.edu.my/id/eprint/10243/
► Somaliland is a country that has not recognised internationally since it gets its independence in 1991, which has been suffering from electricity crisis due to…
(more)
▼ Somaliland is a country that has not recognised internationally since it gets its independence in 1991, which has been suffering from electricity crisis due to high losses of electricity, less trained personnel, shortage of efficient technical plan, poor infrastructure and high cost of energy (COE) comparing to neighbour countries. The purpose of this project is to come up with plan to reduce this high COE by making economic feasibility to both the existing system of diesel system and proposing renewable energy-based microgrid system in Berbera Power Generation Company. Hybrid Optimization Model of Renewable Energy (HOMER) simulation software is applied to implement cost benefit analysis for both the existing and proposed model. The existing system is evaluated and studded how many litters of diesel the generators uses annually, the cost of energy and the amount of carbon emission that the system produces yearly. Renewable based hybrid microgrid system that consist of two renewable energy resources (wind and PV), two diesel generators, battery storage and converter is optimized in this project. Hence, the proposed system with renewable fraction of 55% can reduce the cost of energy 29% and provides less carbon emission of 40% then the existing system of diesel based system. Last but not least, this project recommended hybrid microgrid system that has less cost of energy of USD 0.262/kWh and environmental friendly system in Berbera Somaliland.
Subjects/Keywords: TJ807-830 Renewable energy sources
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MLA ·
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to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Osman, M. A. (2018). Feasibility study of renewable energy-based microgrid hybrid system in Berbera Somaliland. (Masters Thesis). Universiti Tun Hussein Onn Malaysia. Retrieved from http://eprints.uthm.edu.my/id/eprint/10243/
Chicago Manual of Style (16th Edition):
Osman, Mustafe Adam. “Feasibility study of renewable energy-based microgrid hybrid system in Berbera Somaliland.” 2018. Masters Thesis, Universiti Tun Hussein Onn Malaysia. Accessed January 26, 2021.
http://eprints.uthm.edu.my/id/eprint/10243/.
MLA Handbook (7th Edition):
Osman, Mustafe Adam. “Feasibility study of renewable energy-based microgrid hybrid system in Berbera Somaliland.” 2018. Web. 26 Jan 2021.
Vancouver:
Osman MA. Feasibility study of renewable energy-based microgrid hybrid system in Berbera Somaliland. [Internet] [Masters thesis]. Universiti Tun Hussein Onn Malaysia; 2018. [cited 2021 Jan 26].
Available from: http://eprints.uthm.edu.my/id/eprint/10243/.
Council of Science Editors:
Osman MA. Feasibility study of renewable energy-based microgrid hybrid system in Berbera Somaliland. [Masters Thesis]. Universiti Tun Hussein Onn Malaysia; 2018. Available from: http://eprints.uthm.edu.my/id/eprint/10243/
14.
Seng, Sue Men.
Location theory based wind energy system planning
.
Degree: Fakulti Kejuruteraan Elektrik dan Elektronik, 2011, Universiti Tun Hussein Onn Malaysia
URL: http://eprints.uthm.edu.my/id/eprint/1746/
► Wind Energy is the one of the fastest growing renewable energy in the last two decades. Besides having the most rapid growth, wind energy has…
(more)
▼ Wind Energy is the one of the fastest growing renewable energy in the last two
decades. Besides having the most rapid growth, wind energy has become a big part
of the energy consumed globally. However, some of the key factors for a successful
wind power project can be overlooked at times, leading to the failure of such projects
and posing negative effects on its contribution. This project studies the key
parameters that are crucial in the process of selecting potential location for optimal
success in wind power planning at its initial stage. The aim is to build a model that
can be generally applied during wind power planning. A multi-criteria decision
making tool: Analytic Hierarchy Process (AHP) is implemented using Saaty scale
ranging from 1-9 to form pairwise comparisons and evaluate the weightage of each
criteria. The result shows the priorities of the parameters and their significance,
indicating the order of which they should be carried out during planning process.
Subjects/Keywords: TJ807-830 Renewable energy sources
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Manager
APA (6th Edition):
Seng, S. M. (2011). Location theory based wind energy system planning
. (Masters Thesis). Universiti Tun Hussein Onn Malaysia. Retrieved from http://eprints.uthm.edu.my/id/eprint/1746/
Chicago Manual of Style (16th Edition):
Seng, Sue Men. “Location theory based wind energy system planning
.” 2011. Masters Thesis, Universiti Tun Hussein Onn Malaysia. Accessed January 26, 2021.
http://eprints.uthm.edu.my/id/eprint/1746/.
MLA Handbook (7th Edition):
Seng, Sue Men. “Location theory based wind energy system planning
.” 2011. Web. 26 Jan 2021.
Vancouver:
Seng SM. Location theory based wind energy system planning
. [Internet] [Masters thesis]. Universiti Tun Hussein Onn Malaysia; 2011. [cited 2021 Jan 26].
Available from: http://eprints.uthm.edu.my/id/eprint/1746/.
Council of Science Editors:
Seng SM. Location theory based wind energy system planning
. [Masters Thesis]. Universiti Tun Hussein Onn Malaysia; 2011. Available from: http://eprints.uthm.edu.my/id/eprint/1746/
15.
Samiran, Nor Afzanizam.
Simulation study on the performance of vertical axis wind turbine.
Degree: Fakulti Kejuruteraan Mekanikal dan Pembuatan, 2013, Universiti Tun Hussein Onn Malaysia
URL: http://eprints.uthm.edu.my/id/eprint/3726/
► Nowadays, people start to think the Drag type of vertical axis wind turbine (VAWT) as a potential and reliable wind machine in the future. It…
(more)
▼ Nowadays, people start to think the Drag type of vertical axis wind turbine (VAWT) as a
potential and reliable wind machine in the future. It advantageous of simpler and
significantly cheap to build and maintain than conventional Horizontal axis wind turbine
(HAWT) attract the world attention. However, such rotor is suffering from poor
efficiency problems. The present study will consider the design improvement of
Savonius rotor, which is the basic geometry of drag machine, as a critical step to
increase the efficiency of output power. Investigation is conducted to study the effect of
geometrical configuration on the performance of the rotor in terms of coefficient of
torque, coefficient of power and power output. There are three different types of
modification; number of blades variable, shielding method and combination of both
configuration. Computerized Fluid Dynamics (CFD) simulation is conducted to analyze
the flow characteristic of all the rotor types. The continuity and Reynolds Averaged
Navier-Stokes (RANS) equations and realizable k- E epsilon turbulence model are
numerically solved by commercial software Ansys-Fluent 14.0. Simulation computed
the pressure and velocity field of the flow and the force acting on the rotor blades. The
resultant force, pressure and torque coefficient obtained will be used to calculate power
coefficient and power output. The results obtained by transient and steady method for
the conventional two bladed Savonius rotor are in agreement with those obtained
experimentally by other authors and this indicates that the method can be successfully
used for such analysis. The modified 3 and 4 bladed rotors with hybrid shielding method
give the highest maximum power coefficient which 0.37 at TSR 0.5.
Subjects/Keywords: TJ807-830 Renewable energy sources
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to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Samiran, N. A. (2013). Simulation study on the performance of vertical axis wind turbine. (Masters Thesis). Universiti Tun Hussein Onn Malaysia. Retrieved from http://eprints.uthm.edu.my/id/eprint/3726/
Chicago Manual of Style (16th Edition):
Samiran, Nor Afzanizam. “Simulation study on the performance of vertical axis wind turbine.” 2013. Masters Thesis, Universiti Tun Hussein Onn Malaysia. Accessed January 26, 2021.
http://eprints.uthm.edu.my/id/eprint/3726/.
MLA Handbook (7th Edition):
Samiran, Nor Afzanizam. “Simulation study on the performance of vertical axis wind turbine.” 2013. Web. 26 Jan 2021.
Vancouver:
Samiran NA. Simulation study on the performance of vertical axis wind turbine. [Internet] [Masters thesis]. Universiti Tun Hussein Onn Malaysia; 2013. [cited 2021 Jan 26].
Available from: http://eprints.uthm.edu.my/id/eprint/3726/.
Council of Science Editors:
Samiran NA. Simulation study on the performance of vertical axis wind turbine. [Masters Thesis]. Universiti Tun Hussein Onn Malaysia; 2013. Available from: http://eprints.uthm.edu.my/id/eprint/3726/
Loughborough University
16.
Zulkifli, Shamsul Aizam.
Energy recovery from landing aircraft.
Degree: phd, Department of Aeronautical and Automotive Engineering, 2012, Loughborough University
URL: http://eprints.uthm.edu.my/id/eprint/4656/
► Currently, renewable energy sources are the main driver for future electricity generation. This trend is growing faster in the developed countries in order to reduce…
(more)
▼ Currently, renewable energy sources are the main driver for future electricity generation.
This trend is growing faster in the developed countries in order to reduce the green
house effect and also in response to the limited supply of oil, gas and coal which are
currently the major sources for electric generation. For example, the main renewable
energy sources are from wind energy and solar energy but these energies are only available
to those countries that are exposed to these resources. In this thesis an alternative
energy source is investigated where it can be generated from the moving objects or in
form of kinetic energy. The idea is to convert the kinetic energy during landing aircraft
into electrical energy which it can also be stored and transferred to the existing electrical
network. To convert this kinetic energy to electrical energy, the linear generator (LG)
and uncontrolled rectifier have been used for energy conversion. The LG have been
modelled in 3-phase model or in dq model and combined with the diode rectitier that is
used to generate the dc signal outputs. Due to the uncontrolled rectitier the electrical
outputs will have decaying amplitude along the landing time. This condition also happen
to the LG outputs such as the force and the power output. In order to control these
outputs the cascaded buck-boost converter has been used. This converter is responsible
to control the output current at the rectitier and also the LG output power during
landing to more controllable power output. Here, the H1 current control strategy has
been used as it offers a very good performance for current tracking and to increase the
robustness of the controller. During landing huge power is produced at the beginning
and when the landing time is increased, the generated input power from LG is reduced
to zero. Due to this, the energy storage that consits of ultracapacitor, bidirectional converter
and boost converter are usedin order to store and to release the energy depends
on the input power source and load grid power. The voltage proportional-integral (PI)
control strategy has been used for both the converters. The last part is to transfer the
energy from the source and at the ultracapacitor to the load by using the inverter as the
processing device. The power controller and current controller are used at the inverter
in order to control the power flow between the inverter and the grid. This is when the
reference power is determined from the load power in order to generate the reference
current by using the voltage oriented controller (VOC), while the H1 current controller
is used to regulate the inverter current in order to inject the suitable amount of current
that refer to the load power. Finally, a complete energy recovery system for landing
aircraft with the grid connection have been put together to make the whole system to
be as a new renewable energy source for the future electricity generation.
Subjects/Keywords: TJ807-830 Renewable energy sources
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APA (6th Edition):
Zulkifli, S. A. (2012). Energy recovery from landing aircraft. (Doctoral Dissertation). Loughborough University. Retrieved from http://eprints.uthm.edu.my/id/eprint/4656/
Chicago Manual of Style (16th Edition):
Zulkifli, Shamsul Aizam. “Energy recovery from landing aircraft.” 2012. Doctoral Dissertation, Loughborough University. Accessed January 26, 2021.
http://eprints.uthm.edu.my/id/eprint/4656/.
MLA Handbook (7th Edition):
Zulkifli, Shamsul Aizam. “Energy recovery from landing aircraft.” 2012. Web. 26 Jan 2021.
Vancouver:
Zulkifli SA. Energy recovery from landing aircraft. [Internet] [Doctoral dissertation]. Loughborough University; 2012. [cited 2021 Jan 26].
Available from: http://eprints.uthm.edu.my/id/eprint/4656/.
Council of Science Editors:
Zulkifli SA. Energy recovery from landing aircraft. [Doctoral Dissertation]. Loughborough University; 2012. Available from: http://eprints.uthm.edu.my/id/eprint/4656/
17.
Ardi, Mohd Aidil.
Power factor improvement in power system with the integration of renewable energy.
Degree: Fakulti Kejuruteraan Elektrik dan Elektronik, 2013, Universiti Tun Hussein Onn Malaysia
URL: http://eprints.uthm.edu.my/id/eprint/4707/
► In the power grid system, the ultimate goals are to transmit power with high power quality and power factor, economical and low risk of system…
(more)
▼ In the power grid system, the ultimate goals are to transmit power with high power quality and power factor, economical and low risk of system failure. The ever increasing of power demands and loads especially non-linear loads making the power system network become complex to operate and the system becomes insecure with large power flows without adequate control. Renewable energy sources, which are expected to be a promising alternative energy source, can bring new challenges when connected to the power grid system. However, the generated power from renewable energy source is always fluctuating due to environmental conditions. In the same way, wind power source injection into an electric grid affects the power quality due to the fluctuation nature of the wind and the comparatively new types of its generators panel. One way to introduce power system control is by applying controller known as FACTS (Flexible AC Transmission System) controllers. STATCOM (Static Synchronous Compensator) and SSSC (Static Synchronous Series Compensator) is one of the FACTS controllers and can be introduced to the power system to regulate terminal voltage and to improve system’s stability and power quality. The FACTS devices (STATCOM and SSSC) control scheme for the grid connected with wind energy generation system is simulated using MATLAB/PSAT in power system block set. By using IEEE 14 bus power system network, the effectiveness of STATCOM and SSSC are tested by applying the controller at the critical location of the power system.
Subjects/Keywords: TJ807-830 Renewable energy sources
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Manager
APA (6th Edition):
Ardi, M. A. (2013). Power factor improvement in power system with the integration of renewable energy. (Masters Thesis). Universiti Tun Hussein Onn Malaysia. Retrieved from http://eprints.uthm.edu.my/id/eprint/4707/
Chicago Manual of Style (16th Edition):
Ardi, Mohd Aidil. “Power factor improvement in power system with the integration of renewable energy.” 2013. Masters Thesis, Universiti Tun Hussein Onn Malaysia. Accessed January 26, 2021.
http://eprints.uthm.edu.my/id/eprint/4707/.
MLA Handbook (7th Edition):
Ardi, Mohd Aidil. “Power factor improvement in power system with the integration of renewable energy.” 2013. Web. 26 Jan 2021.
Vancouver:
Ardi MA. Power factor improvement in power system with the integration of renewable energy. [Internet] [Masters thesis]. Universiti Tun Hussein Onn Malaysia; 2013. [cited 2021 Jan 26].
Available from: http://eprints.uthm.edu.my/id/eprint/4707/.
Council of Science Editors:
Ardi MA. Power factor improvement in power system with the integration of renewable energy. [Masters Thesis]. Universiti Tun Hussein Onn Malaysia; 2013. Available from: http://eprints.uthm.edu.my/id/eprint/4707/
18.
Sarnon, Mohd Zaki.
Two ways power flow with renewable energy integration.
Degree: Fakulti Kejuruteraan Elektrik dan Elektronik, 2013, Universiti Tun Hussein Onn Malaysia
URL: http://eprints.uthm.edu.my/id/eprint/4716/
► Today’s electric grid was designed to operate as a vertical structure consisting of generation, transmission and distribution and advanced control support devices for reliability, stability…
(more)
▼ Today’s electric grid was designed to operate as a vertical structure consisting of generation, transmission and distribution and advanced control support devices for reliability, stability and efficiency. However, our conventional system grid now facing new challenges including the penetration of Renewable Energy Resources (RER). The advanced development of power grid system for future will give immediate impacts of anew connection such as power flow direction, protection, voltage profile, power quality and stability. This project aims to find out the performance of smart grid system with renewable energy integration and focuses on power flow studies. Thus, modeling of electrical power grid for smart grid is a part of the project throughout some of conventional calculation. The calculation of power flow is based on Newton Raphson method and was developed with existing software for analysis. The power flow calculation aim to evaluate the parameters of that particular performance such as voltages, currents, real and reactive power flow in a system under a given load conditions. The standard test system that used was IEEE 14-Bus System and modification was made to the grid within the integration of renewable energy. Effect of FACTS also implemented in this project as additional case to study the power flow. The comparisons and results from simulation show the variation of power flow when the renewable energy and FACTS devices were applied. In conclusion, this project focus on research to study the power flow in the smart grid with renewable energy integration modeled.
Subjects/Keywords: TJ807-830 Renewable energy sources
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Manager
APA (6th Edition):
Sarnon, M. Z. (2013). Two ways power flow with renewable energy integration. (Masters Thesis). Universiti Tun Hussein Onn Malaysia. Retrieved from http://eprints.uthm.edu.my/id/eprint/4716/
Chicago Manual of Style (16th Edition):
Sarnon, Mohd Zaki. “Two ways power flow with renewable energy integration.” 2013. Masters Thesis, Universiti Tun Hussein Onn Malaysia. Accessed January 26, 2021.
http://eprints.uthm.edu.my/id/eprint/4716/.
MLA Handbook (7th Edition):
Sarnon, Mohd Zaki. “Two ways power flow with renewable energy integration.” 2013. Web. 26 Jan 2021.
Vancouver:
Sarnon MZ. Two ways power flow with renewable energy integration. [Internet] [Masters thesis]. Universiti Tun Hussein Onn Malaysia; 2013. [cited 2021 Jan 26].
Available from: http://eprints.uthm.edu.my/id/eprint/4716/.
Council of Science Editors:
Sarnon MZ. Two ways power flow with renewable energy integration. [Masters Thesis]. Universiti Tun Hussein Onn Malaysia; 2013. Available from: http://eprints.uthm.edu.my/id/eprint/4716/
19.
Kimpol, Norhanisa.
Study of solution towards ground leakage current via inverter switching in different topologies for grid connected PV system.
Degree: Fakulti Kejuruteraan Elektrik dan Elektronik, 2013, Universiti Tun Hussein Onn Malaysia
URL: http://eprints.uthm.edu.my/id/eprint/4727/
► Renewable energy sources are major issues in order to address the energy problem. Among them, the PV (Photovoltaic) system will be dominant because its availability…
(more)
▼ Renewable energy sources are major issues in order to address the energy problem.
Among them, the PV (Photovoltaic) system will be dominant because its availability
and reliability. One of the common problems that arise due to the formation of solar
PV panels is capacitive ground current. Although transformer helps in reducing this
problem, the poor side of having the transformer in PV systems is accounted to bulky
in size and hard to install the entire PV system. Indirectly, the cost is higher and led
to a lower efficiency due to higher losses of power. To solve this, transformerless
inverter topology offers a solution for the efficiency, size and weight. The leakage
current depends on both inverter topology and control strategy. In this report,
different inverter topologies have been reviewed with respect to ground current
formation due to inverter switching that causes varying common mode voltage that
will excite the resonant circuit as well as causes the leakage current phenomenon.
The transformerless inverter topologies that are considered are Bipolar H-Bridge,
Modified HB-ZVR and NPC. In order to study the effect of having a transformer in
eliminating the ground current, Bipolar H-Bridge inverter with transformer also
include in this project. All proposed topologies are modelled and simulated to
compare the pattern and behavior of ground leakage current with other existing
topology. By comparing the pattern of the output from the simulation, a conclusion is
given which proves that NPC topology are suitable for PV application due to low
leakage current compared with other two topologies.
Subjects/Keywords: TJ807-830 Renewable energy sources
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Manager
APA (6th Edition):
Kimpol, N. (2013). Study of solution towards ground leakage current via inverter switching in different topologies for grid connected PV system. (Masters Thesis). Universiti Tun Hussein Onn Malaysia. Retrieved from http://eprints.uthm.edu.my/id/eprint/4727/
Chicago Manual of Style (16th Edition):
Kimpol, Norhanisa. “Study of solution towards ground leakage current via inverter switching in different topologies for grid connected PV system.” 2013. Masters Thesis, Universiti Tun Hussein Onn Malaysia. Accessed January 26, 2021.
http://eprints.uthm.edu.my/id/eprint/4727/.
MLA Handbook (7th Edition):
Kimpol, Norhanisa. “Study of solution towards ground leakage current via inverter switching in different topologies for grid connected PV system.” 2013. Web. 26 Jan 2021.
Vancouver:
Kimpol N. Study of solution towards ground leakage current via inverter switching in different topologies for grid connected PV system. [Internet] [Masters thesis]. Universiti Tun Hussein Onn Malaysia; 2013. [cited 2021 Jan 26].
Available from: http://eprints.uthm.edu.my/id/eprint/4727/.
Council of Science Editors:
Kimpol N. Study of solution towards ground leakage current via inverter switching in different topologies for grid connected PV system. [Masters Thesis]. Universiti Tun Hussein Onn Malaysia; 2013. Available from: http://eprints.uthm.edu.my/id/eprint/4727/
20.
Zainal Ramlan Noorazyze, Sarah Narimah Noorazyze.
Performance evaluation of slotted and continuous types wind turbine blade.
Degree: Fakulti Kejuruteraan Mekanikal dan Pembuatan, 2014, Universiti Tun Hussein Onn Malaysia
URL: http://eprints.uthm.edu.my/id/eprint/5658/
► Nowadays, wind turbine became one of the largest energy suppliers of energy in world. The focal point in the wind turbine system is where the…
(more)
▼ Nowadays, wind turbine became one of the largest energy suppliers of energy in world. The focal point in the wind turbine system is where the wind is harvested and converted into useable energy by the wind turbine blade. This study emphasized on determining the performance of continuous and slotted type of 5 meter diameter wind turbine blades for low wind speed in Malaysia. The Autodesk Inventor 2013 software was used as to develop the three dimensional model NACA 4412 airfoil blades with and without slot before evaluation of aerodynamic characteristics by using ANSYS software. This evaluation of aerodynamic characteristics of the slotted wind turbine blades with different slot configurations is believed could to benefit the material weight reduce its cost as it is constantly rising. Blades with lighter material would produce wind turbines with low rotational inertia and therefore would yield better energy performance at lower wind speeds. The aerodynamic results shows an increased value of lift coefficient with the increasing value of angle of attack (0 - 30).
Subjects/Keywords: TJ807-830 Renewable energy sources
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to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Zainal Ramlan Noorazyze, S. N. N. (2014). Performance evaluation of slotted and continuous types wind turbine blade. (Masters Thesis). Universiti Tun Hussein Onn Malaysia. Retrieved from http://eprints.uthm.edu.my/id/eprint/5658/
Chicago Manual of Style (16th Edition):
Zainal Ramlan Noorazyze, Sarah Narimah Noorazyze. “Performance evaluation of slotted and continuous types wind turbine blade.” 2014. Masters Thesis, Universiti Tun Hussein Onn Malaysia. Accessed January 26, 2021.
http://eprints.uthm.edu.my/id/eprint/5658/.
MLA Handbook (7th Edition):
Zainal Ramlan Noorazyze, Sarah Narimah Noorazyze. “Performance evaluation of slotted and continuous types wind turbine blade.” 2014. Web. 26 Jan 2021.
Vancouver:
Zainal Ramlan Noorazyze SNN. Performance evaluation of slotted and continuous types wind turbine blade. [Internet] [Masters thesis]. Universiti Tun Hussein Onn Malaysia; 2014. [cited 2021 Jan 26].
Available from: http://eprints.uthm.edu.my/id/eprint/5658/.
Council of Science Editors:
Zainal Ramlan Noorazyze SNN. Performance evaluation of slotted and continuous types wind turbine blade. [Masters Thesis]. Universiti Tun Hussein Onn Malaysia; 2014. Available from: http://eprints.uthm.edu.my/id/eprint/5658/
21.
Wong, Frederick Tsun Kiong.
A cost effective solar powered led street light.
Degree: Fakulti Kejuruteraan Elektrik dan Elektronik, 2014, Universiti Tun Hussein Onn Malaysia
URL: http://eprints.uthm.edu.my/id/eprint/6635/
► A cost effective solar powered LED street light was designed based on the current solar powered street light installed at Masjid Nurul Huda, Kampung Gentisan,…
(more)
▼ A cost effective solar powered LED street light was designed based on the current solar
powered street light installed at Masjid Nurul Huda, Kampung Gentisan, Sepanggar,
Sabah, Malaysia. A new load profile is obtained based on a thirty day data collection at
site utilizing motion sensor to record movement at the area. A proposed algorithm to
control the LED light intensity was presented. The new load profile was processed based
on the proposed algorithm. Simulation to design a new solar powered LED street light
was done using the new load profile. The design uses 180W Solar Panel, with 8 x 6V
(10Ah) batteries. The system has the design capability to last for 38.6 hours. Results are
compared with existing solar powered LED street light and also existing mercury vapor
street light. An economic analysis for 25 years is also performed to determine the cost
effectiveness of the new system where the Life Cycle Cost is found to be RM 11,143.00
compared to the existing conventional design of RM 13,626.00 which is equivalent to
18.22% of cost savings.
Subjects/Keywords: TJ807-830 Renewable energy sources
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Manager
APA (6th Edition):
Wong, F. T. K. (2014). A cost effective solar powered led street light. (Masters Thesis). Universiti Tun Hussein Onn Malaysia. Retrieved from http://eprints.uthm.edu.my/id/eprint/6635/
Chicago Manual of Style (16th Edition):
Wong, Frederick Tsun Kiong. “A cost effective solar powered led street light.” 2014. Masters Thesis, Universiti Tun Hussein Onn Malaysia. Accessed January 26, 2021.
http://eprints.uthm.edu.my/id/eprint/6635/.
MLA Handbook (7th Edition):
Wong, Frederick Tsun Kiong. “A cost effective solar powered led street light.” 2014. Web. 26 Jan 2021.
Vancouver:
Wong FTK. A cost effective solar powered led street light. [Internet] [Masters thesis]. Universiti Tun Hussein Onn Malaysia; 2014. [cited 2021 Jan 26].
Available from: http://eprints.uthm.edu.my/id/eprint/6635/.
Council of Science Editors:
Wong FTK. A cost effective solar powered led street light. [Masters Thesis]. Universiti Tun Hussein Onn Malaysia; 2014. Available from: http://eprints.uthm.edu.my/id/eprint/6635/
22.
Husain, Mohd Hazruwadi.
Evaluation of energy conversion and storage systems for vehicle's wind turbine.
Degree: Fakulti Kejuruteraan Mekanikal dan Pembuatan, 2015, Universiti Tun Hussein Onn Malaysia
URL: http://eprints.uthm.edu.my/id/eprint/7502/
► This project involved the design and fabrication of energy conversion and storage system for vehicle's wind turbine. The energy generated by wind turbine was stored…
(more)
▼ This project involved the design and fabrication of energy conversion and storage
system for vehicle's wind turbine. The energy generated by wind turbine was stored
in the 12 volt battery for the use of the vehicle components. In the early stage of the
project, a review of the existing energy conversion and storage for vehicle's power
system was carried out. Several circuit designs were proposed and tested by using
National Instrument Software. An optimum design for energy conversion system is
fabricated and mounted on a vehicle. A test was conducted on the energy conversion
and storage system to evaluate its performance. The results indicated that the power
generated by the system is directly proportional to the speed of the alternator. The
time taken for charging a battery was also recorded and it was found that about 2 to
3 hours was required to fully charge the 12-volt battery depending on the size and
capacity of the battery used. The power generated by the system was 20.4 watt and
120.5 watt at cruising speed of 60 km/h and 120 km/h, respectively. The final step in
the project is to increase the voltage stored in the battery up to 200 volts. The high
voltage is required to charge the battery with high voltage capacity.
Subjects/Keywords: TJ807-830 Renewable energy sources
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APA ·
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to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Husain, M. H. (2015). Evaluation of energy conversion and storage systems for vehicle's wind turbine. (Masters Thesis). Universiti Tun Hussein Onn Malaysia. Retrieved from http://eprints.uthm.edu.my/id/eprint/7502/
Chicago Manual of Style (16th Edition):
Husain, Mohd Hazruwadi. “Evaluation of energy conversion and storage systems for vehicle's wind turbine.” 2015. Masters Thesis, Universiti Tun Hussein Onn Malaysia. Accessed January 26, 2021.
http://eprints.uthm.edu.my/id/eprint/7502/.
MLA Handbook (7th Edition):
Husain, Mohd Hazruwadi. “Evaluation of energy conversion and storage systems for vehicle's wind turbine.” 2015. Web. 26 Jan 2021.
Vancouver:
Husain MH. Evaluation of energy conversion and storage systems for vehicle's wind turbine. [Internet] [Masters thesis]. Universiti Tun Hussein Onn Malaysia; 2015. [cited 2021 Jan 26].
Available from: http://eprints.uthm.edu.my/id/eprint/7502/.
Council of Science Editors:
Husain MH. Evaluation of energy conversion and storage systems for vehicle's wind turbine. [Masters Thesis]. Universiti Tun Hussein Onn Malaysia; 2015. Available from: http://eprints.uthm.edu.my/id/eprint/7502/
23.
Mohd Isa, Murniza.
Comparison of concentrating photovoltaic (CPV) configuration for photovoltaic (PV) application.
Degree: Faculty of Electrical and Electronic Engineering, 2016, Universiti Tun Hussein Onn Malaysia
URL: http://eprints.uthm.edu.my/id/eprint/9095/
► Concentrated Photovoltaic (CPV) is a well-known technology that relies essentially on the design and fabrication of a concentrator optic part and with the use of…
(more)
▼ Concentrated Photovoltaic (CPV) is a well-known technology that relies essentially
on the design and fabrication of a concentrator optic part and with the use of
Compound Parabolic Concentrator (CPC) as a basic shape. However, common
drawbacks of the 3-dimension (3-D) CPC are the decreasing geometrical
concentration ratio which leads to the reduction of the optical and cell output
performance. The aim of this research is to perform comparative studies of the
Rectangular Compound Parabolic Concentrator (RCPC) by combining reflective
surface and refractive dielectric materials. The proposed concentrator model was
designed by intersecting two 2-dimension (2-D) compound parabolic concentrators
(CPC). A basic formulation characteristic of CPC shape was used to create RCPC
design configuration with a geometrical concentration ratio of 4 and a maximum half
acceptance angle
Subjects/Keywords: TJ807-830 Renewable energy sources
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APA ·
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Manager
APA (6th Edition):
Mohd Isa, M. (2016). Comparison of concentrating photovoltaic (CPV) configuration for photovoltaic (PV) application. (Masters Thesis). Universiti Tun Hussein Onn Malaysia. Retrieved from http://eprints.uthm.edu.my/id/eprint/9095/
Chicago Manual of Style (16th Edition):
Mohd Isa, Murniza. “Comparison of concentrating photovoltaic (CPV) configuration for photovoltaic (PV) application.” 2016. Masters Thesis, Universiti Tun Hussein Onn Malaysia. Accessed January 26, 2021.
http://eprints.uthm.edu.my/id/eprint/9095/.
MLA Handbook (7th Edition):
Mohd Isa, Murniza. “Comparison of concentrating photovoltaic (CPV) configuration for photovoltaic (PV) application.” 2016. Web. 26 Jan 2021.
Vancouver:
Mohd Isa M. Comparison of concentrating photovoltaic (CPV) configuration for photovoltaic (PV) application. [Internet] [Masters thesis]. Universiti Tun Hussein Onn Malaysia; 2016. [cited 2021 Jan 26].
Available from: http://eprints.uthm.edu.my/id/eprint/9095/.
Council of Science Editors:
Mohd Isa M. Comparison of concentrating photovoltaic (CPV) configuration for photovoltaic (PV) application. [Masters Thesis]. Universiti Tun Hussein Onn Malaysia; 2016. Available from: http://eprints.uthm.edu.my/id/eprint/9095/
24.
Hussein Abed, Abo Alwez Mustafa.
Modeling and simulation of standalone hybrid pv- wind renewable energy system base case study: Iraq.
Degree: mphil, Fakulti Kejuruteraan Elektrik dan Elektronik, 2019, Universiti Tun Hussein Onn Malaysia
URL: http://eprints.uthm.edu.my/id/eprint/12823/
► Energy is very important for countries growth and economy. The global warning of using fossil fuel to generate electricity increase which plays an important role…
(more)
▼ Energy is very important for countries growth and economy. The global warning of using fossil fuel to generate electricity increase which plays an important role to increase the demand for renewable energy to generate electricity. Renewable energy is the energy that collected from renewable sources like Solar, wind, waves and others. The problem of renewable sources that is unexpected and have intermittent nature. This thesis contain modeling of Photovoltaic renewable energy system to produces maximum 10 KW/h. Moreover, the study contains modeling of wind energy system to produces 14 KW/h. Reducing the effect of the intermittent nature of renewable sources on the electricity generation is a challenging task. The end of the project are proposed a hybrid modeling of both the PV and the wind systems by using DC link using Matlab 2017b Simulink software. The case study suffer huge shortage of electrical power production. The maximum power is 24 KW/h obtained using hybrid system. The demonstrated system as standalone or grid off system due to targeted the rural electrification. The resulted hybrid system noticed that it’s improve the power and the under worst case which the system tested on it the battery can charge and the system ready to extra load.
Subjects/Keywords: TJ807-830 Renewable energy sources
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APA ·
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Manager
APA (6th Edition):
Hussein Abed, A. A. M. (2019). Modeling and simulation of standalone hybrid pv- wind renewable energy system base case study: Iraq. (Masters Thesis). Universiti Tun Hussein Onn Malaysia. Retrieved from http://eprints.uthm.edu.my/id/eprint/12823/
Chicago Manual of Style (16th Edition):
Hussein Abed, Abo Alwez Mustafa. “Modeling and simulation of standalone hybrid pv- wind renewable energy system base case study: Iraq.” 2019. Masters Thesis, Universiti Tun Hussein Onn Malaysia. Accessed January 26, 2021.
http://eprints.uthm.edu.my/id/eprint/12823/.
MLA Handbook (7th Edition):
Hussein Abed, Abo Alwez Mustafa. “Modeling and simulation of standalone hybrid pv- wind renewable energy system base case study: Iraq.” 2019. Web. 26 Jan 2021.
Vancouver:
Hussein Abed AAM. Modeling and simulation of standalone hybrid pv- wind renewable energy system base case study: Iraq. [Internet] [Masters thesis]. Universiti Tun Hussein Onn Malaysia; 2019. [cited 2021 Jan 26].
Available from: http://eprints.uthm.edu.my/id/eprint/12823/.
Council of Science Editors:
Hussein Abed AAM. Modeling and simulation of standalone hybrid pv- wind renewable energy system base case study: Iraq. [Masters Thesis]. Universiti Tun Hussein Onn Malaysia; 2019. Available from: http://eprints.uthm.edu.my/id/eprint/12823/
25.
Hayder, Ali Mohammed.
Thermal performance of backflow solar air heating with integrated nanoparticle enhanced pcm absorber storage system.
Degree: phd, Fakulti Kejuruteraan Mekanikal dan Pembuatan, 2019, Universiti Tun Hussein Onn Malaysia
URL: http://eprints.uthm.edu.my/id/eprint/13193/
► The present study has been executed to clarify the advantage of using latent thermal storage integrated with a back pass solar air heater (SAH). The…
(more)
▼ The present study has been executed to clarify the advantage of using latent thermal storage integrated with a back pass solar air heater (SAH). The purpose of this study is to design, fabricate and evaluate the performance of SAH with integrated nanoparticles enhanced phase change material (PCM) absorber storage system. Three different SAH configurations have been designed and studied; without thermal storage, with thermal storage using paraffin wax as a PCM and with thermal storage using Al2O3-paraffin wax. A three-dimensional Navier-Stokes equation coupled with the energy balance equation is solved using the computational fluid dynamics (CFD) software program to implement numerical computations. The numerical analysis is conducted to determine the optimum collector dimensions in terms of length (L), width (W) and depth of air flow channel (Hch) at air mass flow rate of 0.03 kg/s and solar irradiance of 1000 W/m2. Results obtained from the numerical analysis indicate that the collector dimensions of (L = 1.8 m, W = 0.7 m, Hch = 0.07 m) which are the best design. The numerical results show that the SAH with Al2O3-paraffin wax have the thermal efficiency ranged between 73 % and 78 % with air temperature difference from 25 °C to 46.6 °C when the solar irradiance of 1000 W/m2 at the air mass flow rates of 0.03 kg/s and 0.06 kg/s, respectively. The experimental setup is constructed using these optimum dimensions for each configuration and validated using the numerical results. All configurations are fabricated and tested outdoor under the Iraq climatic conditions according to ASHRAE standard tests at different air mass flow rates. The two steps method is used to prepare the mixture of nanoparticles with PCM and ultrasonic device is used to suspend the nanoparticles in the PCM. The experimental results show that the SAH with Al2O3-paraffin wax has the highest daily performance and thermal efficiency followed by SAH with pure paraffin wax and SAH without storage. Moreover, the discharging time in the SAH with pure paraffin wax of heat stored took 5.5, 5, 4.5 and 4 hours at the air mass flow rate 0.03, 0.04, 0.05 and 0.06 kg/s, respectively. As for the SAH with Al2O3-paraffin
`
vi
wax, the discharge time are 5, 4.5, 4 and 3.5 hours at the air mass flow rates of 0.03, 0.04, 0.05 and 0.06 kg/s, respectively. The experimental results also show that increment in the thermal conductivity of PCM with the dispersion 1wt. % Al2O3 which led to raise the outlet air temperature and thermal efficiency of the SAH compared to SAH with pure paraffin wax. In addition, good agreement are obtained when comparing between the numerical and experimental results. It was the average differences in percentage on outlet air temperatures obtained in the numerical and experimental results from 2.11 % to 2.47 % and on the thermal efficiency from 2.70% to 3.50 %, respectively.
Subjects/Keywords: TJ807-830 Renewable energy sources
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APA (6th Edition):
Hayder, A. M. (2019). Thermal performance of backflow solar air heating with integrated nanoparticle enhanced pcm absorber storage system. (Doctoral Dissertation). Universiti Tun Hussein Onn Malaysia. Retrieved from http://eprints.uthm.edu.my/id/eprint/13193/
Chicago Manual of Style (16th Edition):
Hayder, Ali Mohammed. “Thermal performance of backflow solar air heating with integrated nanoparticle enhanced pcm absorber storage system.” 2019. Doctoral Dissertation, Universiti Tun Hussein Onn Malaysia. Accessed January 26, 2021.
http://eprints.uthm.edu.my/id/eprint/13193/.
MLA Handbook (7th Edition):
Hayder, Ali Mohammed. “Thermal performance of backflow solar air heating with integrated nanoparticle enhanced pcm absorber storage system.” 2019. Web. 26 Jan 2021.
Vancouver:
Hayder AM. Thermal performance of backflow solar air heating with integrated nanoparticle enhanced pcm absorber storage system. [Internet] [Doctoral dissertation]. Universiti Tun Hussein Onn Malaysia; 2019. [cited 2021 Jan 26].
Available from: http://eprints.uthm.edu.my/id/eprint/13193/.
Council of Science Editors:
Hayder AM. Thermal performance of backflow solar air heating with integrated nanoparticle enhanced pcm absorber storage system. [Doctoral Dissertation]. Universiti Tun Hussein Onn Malaysia; 2019. Available from: http://eprints.uthm.edu.my/id/eprint/13193/
University of Pretoria
26.
Covary, Theo.
Renewable energy
: benefits of converting urban households to solar water
heating.
Degree: Gordon Institute of Business
Science (GIBS), 2010, University of Pretoria
URL: http://hdl.handle.net/2263/23634
► Modern man’s addiction to fossil fuels or non-renewable energy is the key reason behind the unprecedented economic growth experienced globally over the past 100 years.…
(more)
▼ Modern man’s addiction to fossil fuels or non-renewable
energy is the key reason behind the unprecedented economic growth
experienced globally over the past 100 years. However, by
definition these energy resources are not only finite, but their
widespread use is causing massive environmental damage through air
pollution and its associated impact on people’s health, as well as
the emission of greenhouse gases which are attributed to the
unprecedented rate of global warming - And it is for this reason
that international initiatives such as the Kyoto Protocol, (which
South Africa is a signatory of), aim to mitigate global warming by
reducing member countries’ CO2 emissions.Simultaneously, South
Africa (SA) is experiencing its own electricity supply problems due
to under investment in the sector. While new power plants are being
built, they utilize non-renewable energy
sources and will take time
to build (up to 5 years). It is also important to note that due to
large coal reserves, South Africans enjoy amongst the lowest
electricity tariffs in the world, but SA is amongst this planet’s
biggest per capita polluters.The research thus aims to identify
whether high income households are wasteful users of electricity -
due to historic low prices, lack of knowledge regarding energy
efficiency and the impact that electricity generation has on the
environment - while at the same time determining the group's
perception of domestic solar water heaters (DSWH), given our
country’s favourable climaticconditions.
Advisors/Committee Members: Mr R Shipp (advisor).
Subjects/Keywords: UCTD; Renewable
energy sources
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APA ·
Chicago ·
MLA ·
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CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Covary, T. (2010). Renewable energy
: benefits of converting urban households to solar water
heating. (Masters Thesis). University of Pretoria. Retrieved from http://hdl.handle.net/2263/23634
Chicago Manual of Style (16th Edition):
Covary, Theo. “Renewable energy
: benefits of converting urban households to solar water
heating.” 2010. Masters Thesis, University of Pretoria. Accessed January 26, 2021.
http://hdl.handle.net/2263/23634.
MLA Handbook (7th Edition):
Covary, Theo. “Renewable energy
: benefits of converting urban households to solar water
heating.” 2010. Web. 26 Jan 2021.
Vancouver:
Covary T. Renewable energy
: benefits of converting urban households to solar water
heating. [Internet] [Masters thesis]. University of Pretoria; 2010. [cited 2021 Jan 26].
Available from: http://hdl.handle.net/2263/23634.
Council of Science Editors:
Covary T. Renewable energy
: benefits of converting urban households to solar water
heating. [Masters Thesis]. University of Pretoria; 2010. Available from: http://hdl.handle.net/2263/23634
Addis Ababa University
27.
Dibaba, Getachew.
A Study of Source Consideration and News Selection in Ethiopian Television
.
Degree: 2006, Addis Ababa University
URL: http://etd.aau.edu.et/dspace/handle/123456789/4916
► The study aims to examine the practice of source and story selection in Ethiopian Television (ETV). The study thus explores the dominant sources used within…
(more)
▼ The study aims to examine the practice of source and story selection in
Ethiopian Television (ETV). The study thus explores the dominant
sources used
within ETV news to see whose views are reflected most in the news and how
these
sources become frequently used by journalists in the news. The study
also examines criteria for selecting stories at ETV. The nature of methodology
employed in this study is qualitative. In-depth interviews with key informants
and content analysis were used as techniques to gather data.
Some 503 television news stories were collected between 1 May 2006 and 30
May 2006. Key informant interviews were also conducted with media
practitioners who are responsible for news production. Results showed that
government
sources were used as major information providers in 73.4 % of the
stories, and government officials were visible in 54.3 % of the stories. The
interpretation drawn from these results is that government voices are preferred
for news stories, with representatives from other sections of society being given
less chance to express their perspectives.
The thesis concludes that that political power is a major source consideration at
ETV. The powerful decision-makers at the editorial conference, gatekeepers of
the final product, are inevitably members of or sympathetic to the ruling party.
With regard to criteria for news selection, issues that deal with development are
given priority, and portraying the government positively is also an important
criterion for choosing stories. The findings also show that there are both
internal and external pressures affecting journalistic decisions, often forcing
journalists to practice self-censorship in order to depict the ruling party
positively and omit facts that are offensive to the ruling party.
The thesis concludes that different sections of society are not able to
communicate their perspectives on ETV since the organization serves as a
conduit for government policy messages instead of regularly entertaining
diversified views.
Advisors/Committee Members: Nicola Jones (PhD) (advisor).
Subjects/Keywords: dominant sources
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APA ·
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to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Dibaba, G. (2006). A Study of Source Consideration and News Selection in Ethiopian Television
. (Thesis). Addis Ababa University. Retrieved from http://etd.aau.edu.et/dspace/handle/123456789/4916
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):
Dibaba, Getachew. “A Study of Source Consideration and News Selection in Ethiopian Television
.” 2006. Thesis, Addis Ababa University. Accessed January 26, 2021.
http://etd.aau.edu.et/dspace/handle/123456789/4916.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Dibaba, Getachew. “A Study of Source Consideration and News Selection in Ethiopian Television
.” 2006. Web. 26 Jan 2021.
Vancouver:
Dibaba G. A Study of Source Consideration and News Selection in Ethiopian Television
. [Internet] [Thesis]. Addis Ababa University; 2006. [cited 2021 Jan 26].
Available from: http://etd.aau.edu.et/dspace/handle/123456789/4916.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Dibaba G. A Study of Source Consideration and News Selection in Ethiopian Television
. [Thesis]. Addis Ababa University; 2006. Available from: http://etd.aau.edu.et/dspace/handle/123456789/4916
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Addis Ababa University
28.
Abera, Kumie.
AIR POLLUTION IN ETHIOPIA: Indoor Air Pollution in a rural Butajira and Traffic Air Pollution in Addis Ababa
.
Degree: 2009, Addis Ababa University
URL: http://etd.aau.edu.et/dspace/handle/123456789/6847
► About half of the global population and over 70% of countries in the Sub-Saharan Africa rely on biomass fuel as a source of household energy.…
(more)
▼ About half of the global population and over 70% of countries in the Sub-Saharan Africa rely on
biomass fuel as a source of household energy. Over 95% of households in Ethiopia use biomass
fuel for cooking. Despite the prevailing major concerns among policy makers and professionals
on air pollution, the magnitude of air pollution from domestic and traffic
sources in Ethiopia is
not well established.
Objectives
This thesis attempted to examine the magnitude of air pollution by measuring 24-hr
concentrations of indoor nitrogen dioxide in rural Butajira and daily measurement of ambient
carbon monoxide in traffic congested areas of Addis Ababa.
Materials and Methods
A longitudinal study was conducted to assess the indoor air pollution component between March
2000 and April 2002. Concentrations of NO2 were measured cross-sectionally at about threemonth
interval using a modified Willems badge air samplers. Mothers of children in households
were interviewed within 24 hours of air sampling about characteristics of fire use, type of fuel
and cooking pattern. A Saltzman colorimetric method using a spectrometer calibrated at 540 nm
was used to analyze the mass of NO2 in field samples.
Roadside traffic air pollution was assessed using portable CO USB data loggers. CO monitor is
small electronic equipment installed along 40 roadside sampling points to continuously measure
and record CO concentrations at an average interval of 10 seconds for about 10 hours in the
daytime. Four on-road traffic light posts were also included to explore the association with the
results of roadside CO concentrations. Data were entered and analyzed using EPI INFO version
6.02 statistical software. SPSS version 15.0 was further used to run regression analysis. Data
from CO logger were downloaded in Excel format. Summary statistics, graphs, charts, and tables
were the main tools used to present findings. One-way ANOVA, multiple regression analysis
and linear mixed model analysis were also used to sort out any non-random differences in NO2
and factors affecting the levels of NO2.
viii
Results
Wood, crop residues and animal dung were the main fuels in rural households in the study area.
The mean 24-hr concentration of NO2 was 97.3 μg/m3 (95% CI: 95.9, 98.6). The median (IQR)
was 68.4 (98.7) μg/m3. Ecology and season have shown differences in the mean concentration of
NO2. Households in the highland areas and during wet season had higher indoor NO2
concentration. Biomass fuel type, ecology, purpose of fire use, cooking of at least one type of
food in a day, and frequency of fire use were important household variables to explain the
variations in the daily NO2 concentration. While ecology was the major predictor, housing
physical structures showed little influence on the variation of indoor NO2.
In Addis Ababa, the 15-minute mean (+SD) CO concentrations were 2.03 (1.94) and 2.64 (2.53)
ppm respectively observed during the wet and dry seasons of 2007 and 2008. The two means did
not vary significantly. There were…
Advisors/Committee Members: Professor Yemane Berhane and Professor Ahmed Ali (advisor).
Subjects/Keywords: agro-ecology; sources; biomass fuel
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APA ·
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MLA ·
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CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Abera, K. (2009). AIR POLLUTION IN ETHIOPIA: Indoor Air Pollution in a rural Butajira and Traffic Air Pollution in Addis Ababa
. (Thesis). Addis Ababa University. Retrieved from http://etd.aau.edu.et/dspace/handle/123456789/6847
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):
Abera, Kumie. “AIR POLLUTION IN ETHIOPIA: Indoor Air Pollution in a rural Butajira and Traffic Air Pollution in Addis Ababa
.” 2009. Thesis, Addis Ababa University. Accessed January 26, 2021.
http://etd.aau.edu.et/dspace/handle/123456789/6847.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Abera, Kumie. “AIR POLLUTION IN ETHIOPIA: Indoor Air Pollution in a rural Butajira and Traffic Air Pollution in Addis Ababa
.” 2009. Web. 26 Jan 2021.
Vancouver:
Abera K. AIR POLLUTION IN ETHIOPIA: Indoor Air Pollution in a rural Butajira and Traffic Air Pollution in Addis Ababa
. [Internet] [Thesis]. Addis Ababa University; 2009. [cited 2021 Jan 26].
Available from: http://etd.aau.edu.et/dspace/handle/123456789/6847.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Abera K. AIR POLLUTION IN ETHIOPIA: Indoor Air Pollution in a rural Butajira and Traffic Air Pollution in Addis Ababa
. [Thesis]. Addis Ababa University; 2009. Available from: http://etd.aau.edu.et/dspace/handle/123456789/6847
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Nelson Mandela Metropolitan University
29.
[No author].
Local content requirements and the impact on the South African renewable energy sector.
Degree: Faculty of Business and Economic Sciences, 2016, Nelson Mandela Metropolitan University
URL: http://hdl.handle.net/10948/6149
► Economies aim to expand over time, which always implies the need for increased energy availability in support of this growth. Governments can use their procurement…
(more)
▼ Economies aim to expand over time, which always implies the need for increased energy availability in support of this growth. Governments can use their procurement of energy generation to further enhance the benefit to their economies via certain policy tools. One such tool is Local Content Requirements (LCR) where procurement of a good dictates that a certain value has to be sourced locally. The argument for this tool is that spend is localised and manufacturing, as well as job creation, can be stimulated due to industry establishing in the host economy. However, this practice is distortionary in effect and it does not create a fair playing field for global trade. Furthermore, if the local content definition is weak, or open to manipulation, the goals of such a policy may not be achieved at all. This study looked into the local content requirements of South Africa’s Renewable Energy Independent Power Producer Procurement Programme (REIPPPP) and measured the impact of this policy on the renewable energy sector in general. It was found that, in order to implement a policy such as local content, the host economy had to have certain pre-existing conditions in order to avoid any negative welfare effects. Due to SA not holding all supportive pre-conditions for supporting local content policy, the impact and effect of LCRs has not been optimal and it has not been found to be a sustainable mechanism to continue using into the future indefinitely. The pricing of renewable energy was also found to be higher due to local content and such pricing is passed on to the energy consumer. Therefore, the net welfare impact created for South Africa is diminished in exchange for the creation of jobs and manufacturing, but due to the unsustainability and potential manipulation of the system the country is not maximising the welfare potential from the REIPPPP as it should. It was found that SA renewable energy resources do exist and the logistics infrastructure is strong, providing good potential for investment into renewable energy projects. The demand created by the REIPPPP provided a good market, but there was uncertainty in the long term planning and stability. So, from a market perspective this could be further enhanced. Government had created a sufficient platform for investment, but areas of development such as clusters, R&D and skills training would create a better support environment for LCR policy and strict monitoring of this would also be required to prevent any manipulation. The use of LCRs increases project costs and risk, which is passed onto the energy consumers, but this could be reduced if local goods were more readily available at the right price and at the right quality and quantity. Focus on clusters would once again assist in this regard as independent power producers (IPPs) and engineering procurement and construction (EPC) entities would be able to source components and goods locally in a more cost-effective manner. As the LCRs currently stand in the REIPPPP, it would seem that South Africa is making renewable…
Subjects/Keywords: Renewable energy sources – South Africa
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APA ·
Chicago ·
MLA ·
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CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
author], [. (2016). Local content requirements and the impact on the South African renewable energy sector. (Thesis). Nelson Mandela Metropolitan University. Retrieved from http://hdl.handle.net/10948/6149
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):
author], [No. “Local content requirements and the impact on the South African renewable energy sector.” 2016. Thesis, Nelson Mandela Metropolitan University. Accessed January 26, 2021.
http://hdl.handle.net/10948/6149.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
author], [No. “Local content requirements and the impact on the South African renewable energy sector.” 2016. Web. 26 Jan 2021.
Vancouver:
author] [. Local content requirements and the impact on the South African renewable energy sector. [Internet] [Thesis]. Nelson Mandela Metropolitan University; 2016. [cited 2021 Jan 26].
Available from: http://hdl.handle.net/10948/6149.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
author] [. Local content requirements and the impact on the South African renewable energy sector. [Thesis]. Nelson Mandela Metropolitan University; 2016. Available from: http://hdl.handle.net/10948/6149
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Nelson Mandela Metropolitan University
30.
[No author].
An organic rankine cycle heat engine using a rock thermal battery as the heat source.
Degree: Faculty of Engineering, the Built Environment and Information Technology, 2015, Nelson Mandela Metropolitan University
URL: http://hdl.handle.net/10948/10960
► Organic Rankine cycles (ORC) have unique properties that are well suited to power generation from low grade heat sources. It is envisaged that a domestic…
(more)
▼ Organic Rankine cycles (ORC) have unique properties that are well suited to power generation from low grade heat sources. It is envisaged that a domestic scale ORC Heat Engine can be developed that will be able to run off heat stored in a solar charged rock thermal battery. The use of a thermal battery as the heat source for the ORC system will provide the user with electricity during the day and for a number of hours into the night. The concept presented consists of four key components: rock thermal battery, 1 kW scroll expander, condenser and working fluid pump.
Subjects/Keywords: Heat engineering; Renewable energy sources
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
author], [. (2015). An organic rankine cycle heat engine using a rock thermal battery as the heat source. (Thesis). Nelson Mandela Metropolitan University. Retrieved from http://hdl.handle.net/10948/10960
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):
author], [No. “An organic rankine cycle heat engine using a rock thermal battery as the heat source.” 2015. Thesis, Nelson Mandela Metropolitan University. Accessed January 26, 2021.
http://hdl.handle.net/10948/10960.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
author], [No. “An organic rankine cycle heat engine using a rock thermal battery as the heat source.” 2015. Web. 26 Jan 2021.
Vancouver:
author] [. An organic rankine cycle heat engine using a rock thermal battery as the heat source. [Internet] [Thesis]. Nelson Mandela Metropolitan University; 2015. [cited 2021 Jan 26].
Available from: http://hdl.handle.net/10948/10960.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
author] [. An organic rankine cycle heat engine using a rock thermal battery as the heat source. [Thesis]. Nelson Mandela Metropolitan University; 2015. Available from: http://hdl.handle.net/10948/10960
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
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Open Access Theses and Dissertations