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Статті в журналах з теми "Energy conversion systems"
Sówka, Izabela, Sławomir Pietrowicz, and Piotr Kolasiński. "Energy Processes, Systems and Equipment." Energies 14, no. 6 (March 18, 2021): 1701. http://dx.doi.org/10.3390/en14061701.
Повний текст джерелаPapadopoulos, M. "Book Review: Wind Energy Conversion Systems." International Journal of Electrical Engineering & Education 29, no. 3 (July 1992): 264. http://dx.doi.org/10.1177/002072099202900309.
Повний текст джерелаVocadlo, Jaro J., Brian Richards, and Michael King. "Hydraulic Kinetic Energy Conversion (HKEC) Systems." Journal of Energy Engineering 116, no. 1 (April 1990): 17–38. http://dx.doi.org/10.1061/(asce)0733-9402(1990)116:1(17).
Повний текст джерелаYates, D. A. "Book Review: Wind Energy Conversion Systems." International Journal of Mechanical Engineering Education 22, no. 1 (January 1994): 76–77. http://dx.doi.org/10.1177/030641909402200112.
Повний текст джерелаMiguel, A. F., and M. Aydin. "Ocean exergy and energy conversion systems." International Journal of Exergy 10, no. 4 (2012): 454. http://dx.doi.org/10.1504/ijex.2012.047507.
Повний текст джерелаDemirbas, Ayhan. "Biofuel Based Cogenerative Energy Conversion Systems." Energy Sources, Part A: Recovery, Utilization, and Environmental Effects 28, no. 16 (December 2006): 1509–18. http://dx.doi.org/10.1080/009083190932187.
Повний текст джерелаJansen, D., and M. Mozaffarian. "Advanced fuel cell energy conversion systems." Energy Conversion and Management 38, no. 10-13 (July 1997): 957–67. http://dx.doi.org/10.1016/s0196-8904(96)00126-4.
Повний текст джерелаSuda, S. "Energy Conversion Systems Using Metal Hydrides*." Zeitschrift für Physikalische Chemie 164, Part_2 (January 1989): 1463–74. http://dx.doi.org/10.1524/zpch.1989.164.part_2.1463.
Повний текст джерелаDeubener, J., G. Helsch, A. Moiseev, and H. Bornhöft. "Glasses for solar energy conversion systems." Journal of the European Ceramic Society 29, no. 7 (April 2009): 1203–10. http://dx.doi.org/10.1016/j.jeurceramsoc.2008.08.009.
Повний текст джерелаSubahan, G. M., G. Surendra Reddy, Y. Veera Reddy, G. Sudheer Reddy, G. Vishnu, and M. Srinivasulu. "PMSG Wind Energy Conversion Systems ZSI." International Journal for Research in Applied Science and Engineering Technology 11, no. 3 (March 31, 2023): 1708–17. http://dx.doi.org/10.22214/ijraset.2023.49534.
Повний текст джерелаДисертації з теми "Energy conversion systems"
Thorburn, Karin. "Electric Energy Conversion Systems : Wave Energy and Hydropower." Doctoral thesis, Uppsala : Acta Universitatis Upsaliensis, 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-7081.
Повний текст джерелаMuralidharan, Shylesh. "Assessment of ocean thermal energy conversion." Thesis, Massachusetts Institute of Technology, 2012. http://hdl.handle.net/1721.1/76927.
Повний текст джерелаCataloged from PDF version of thesis.
Includes bibliographical references (p. 103-109).
Ocean thermal energy conversion (OTEC) is a promising renewable energy technology to generate electricity and has other applications such as production of freshwater, seawater air-conditioning, marine culture and chilled-soil agriculture. Previous studies on the technology have focused on promoting it to generate electricity and produce energy-intensive products such as ammonia and hydrogen. Though the technology has been understood in the past couple of decades through academic studies and limited demonstration projects, the uncertainty around the financial viability of a large-scale plant and the lack of an operational demonstration project have delayed large investments in the technology. This study brings together a broad overview of the technology, market locations, technical and economic assessment of the technology, environmental impact of the technology and a comparison of the levelized costs of energy of this technology with competing ones. It also provides an analysis and discussion on application of this technology in water scarce regions of the world, emphasized with a case study of the economic feasibility of this technology for the Bahamas. It was found that current technology exists to build OTEC plants except for some components such as the cold water pipe which presents an engineering challenge when scaled for large-scale power output. The technology is capital intensive and unviable at small scale of power output but can become viable when approached as a sustainable integrated solution to co-generate electricity and freshwater, especially for island nations in the OTEC resource zones with supply constraints on both these commodities. To succeed, this technology requires the support of appropriate government regulation and innovative financing models to mitigate risks associated with the huge upfront investment costs. If the viability of this technology can be improved by integrating the production of by-products, OTEC can be an important means of producing more electricity, freshwater and food for the planet's increasing population.
by Shylesh Muralidharan.
S.M.in Engineering and Management
Ahmed, Shehab. "Compact harsh environment energy conversion systems." [College Station, Tex. : Texas A&M University, 2007. http://hdl.handle.net/1969.1/ETD-TAMU-1289.
Повний текст джерелаBoström, Cecilia. "Electrical Systems for Wave Energy Conversion." Doctoral thesis, Uppsala universitet, Elektricitetslära, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-140116.
Повний текст джерелаFelaktigt tryckt som Digital Comprehensive Summaries of Uppsala Dissertations from the Faculty of Science and Technology 727
Michas, Marios. "Control of turbine-based energy conversion systems." Thesis, Cardiff University, 2018. http://orca.cf.ac.uk/117586/.
Повний текст джерелаOh, Sang Joon. "Electromagnetics of inertial energy storage systems with fast electromechanical energy conversion /." Digital version accessible at:, 2000. http://wwwlib.umi.com/cr/utexas/main.
Повний текст джерелаMcEnaney, Kenneth. "Thermoelectrics and aerogels for solar energy conversion systems." Thesis, Massachusetts Institute of Technology, 2015. http://hdl.handle.net/1721.1/97770.
Повний текст джерелаThis electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.
Cataloged from student-submitted PDF version of thesis.
Includes bibliographical references (pages 115-124).
Concerns about climate change, the world's growing energy needs, and energy independence are driving demand for solar energy conversion technologies. Solar thermal electricity generation has the potential to ll this demand. Solar thermal technology could also be used to displace fossil fuels in applications which require heat as an input. This thesis addresses the potential of two solar thermal technologies: solar thermoelectric generators and aerogel-based solar thermal receivers. Thermoelectrics are materials which produce a voltage when subjected to a temperature gradient. In a solar thermoelectric generator (STEG), sunlight heats one end of the thermoelectric materials, generating a voltage across the device. The voltage can be connected to a load and useful work can be extracted. By adding optical concentration and using higher-temperature materials, the power output and energy conversion eciency of STEGs can be increased. In this work, segmented thermoelectric generators (TEGs) made of bismuth telluride and skutterudite alloys are modeled, optimized, built, and tested. These TEGs achieve a heat-to-electricity conversion efficiency of 10.7% at a hot side of 550° C, the highest TEG eciency reported in this temperature range. From these TEGs, STEGs are built which achieve a sunlight-to-electricity conversion eciency of 5.7% at less than 60 suns, higher than the best reported literature values in this concentration range. With further improvements, it is projected that these STEGs will achieve 10% eciency at 100 suns. In any type of solar thermal system, heat losses from the system must be suppressed to achieve high eciency. Aerogels, which are stable ultra-low density foams, can suppress radiative and convective losses. It is shown that aerogel-based solar thermal receivers can increase the eciency of traditional solar thermal electricity and hot water generation. These results can help advance the field and expand the scope of solar thermal technologies.
by Kenneth McEnaney.
Ph. D.
Yassin, Ali M. "Functional conjugated systems for energy conversion and storage." Angers, 2011. http://www.theses.fr/2011ANGE0080.
Повний текст джерелаThis work entitled « Functional Conjugated Systems for Energy Conversion and Storage » involves the design and synthesis of new classes of functional π-conjugated systems for photovoltaic conversion and the development of new microporous materials. After a general introduction to the structure and electronic properties of the major classes of conjugated systems and more particularly conjugated molecules used as donor material in organic solar cells (OSC), the second chapter describes the synthesis and study of a series of molecular donors obtained by grafting dicyanovinylene on three types of conjugated rigid blocks : carbazole, cyclopentadithiophene and dithienopyrrole (DTP). The evaluation of these systems in donor-acceptor bilayer heterojunction OSCs shows that the DTP leads to best results. A study of the evolution of the electronic properties, of a series of oligo-DTPs, with the chain length further confirms the interest of the donor block for low band gap conjugated systems. The next chapter deals with the synthesis of a series of conjugated molecules of donor-acceptor-donor (D-A-D) type, built around a core of isoindigo, and describes a first evaluation of their potential as donor materials in OSCs. The fourth chapter deals with the synthesis of a series of 3D molecules derived from the grafting of donor groupas on a quaterthiophene core with a quasi-tetrehedral geometry caused by steric effect, and examine the relationship between the structure of the molecules, the mobility of positive charges in these materials and their performance in OSCs. Finally the fift and last chapter describes the first steps towards the design and use of 3D conjugated molecules in order to develop new classes of electro-active materials by polymerization of microporous 3D molecular systems provided with reactive end groups
Buehrle, Bridget Erin. "Modeling of Small-Scale Wind Energy Conversion Systems." Thesis, Virginia Tech, 2013. http://hdl.handle.net/10919/50920.
Повний текст джерелаThe study of the diffuser augmented wind turbine provides optimum dimensions for achieving high power density that can address the challenges associated with small scale wind energy systems; these challenges are to achieve a lower start-up speed and low wind speed operation. The diffuser design was modeled using commercial computational fluid dynamics code. Two-dimensional modeling using actuator disk theory was used to optimize the diffuser design. A statistical study was then conducted to reduce the computational time by selecting a descriptive set of models to simulate and characterize relevant parameters\' effects instead of checking all the possible combinations of input parameters. Individual dimensions were incorporated into JMP® software and randomized to design the experiment. The results of the JMP® analysis are discussed in this paper. Consistent with the literature, a long outlet section with length one to three times the diameter coupled with a sharp angled inlet was found to provide the highest amplification for a wind turbine diffuser.
The second study consisted of analyzing the capabilities of a small-scale vertical axis wind turbine. The turbine consisted of six blades of extruded aluminum NACA 0018 airfoils of 0.08732 m (3.44 in) in chord length. Small-scale wind turbines often operate at Reynolds numbers less than 200,000, and issues in modeling their flow characteristics are discussed throughout this thesis. After finding an appropriate modeling technique, it was found that the vertical axis wind turbine requires more accurate turbulence models to appropriately discover its performance capabilities.
The use of tubercles on aerodynamic blades has been found to delay stall angle and increase the aerodynamic efficiency. Models of 440 mm (17.33 in) blades with and without tubercles were fabricated in Virginia Tech\'s Center for Energy Harvesting Materials and Systems (CEHMS) laboratory. Comparative analysis using three dimensional models of the blades with and without the tubercles will be required to determine whether the tubercle technology does, in fact, delays the stall. Further computational and experimental testing is necessary, but preliminary results indicate a 2% increase in power coefficient when tubercles are present on the blades.
Master of Science
Trilla, Romero Lluís. "Power converter optimal control for wind energy conversion systems." Doctoral thesis, Universitat Politècnica de Catalunya, 2013. http://hdl.handle.net/10803/134602.
Повний текст джерелаWind energy has increased its presence in many countries and it is expected to have even a higher weight in the electrical generation share with the implantation of offshore wind farms. Consequently, the wind energy industry has to take greater responsibility towards the integration and stability of the power grid. In this sense, there are proposed in the present work control systems that aim to improve the response and robustness of the wind energy conversion systems without increasing their complexity in order to facilitate their applicability. In the grid-side converter it is proposed to implement an optimal controller with its design based on H-infinity control theory in order to ensure the stability, obtain an optimal response of the system and also provide robustness. In the machine-side converter the use of a Linear Parameter-Varying controller is selected, this choice provides a controller that dynamically adapts itself to the operating point of the system, in this way the response obtained is always the desired one, the one defined during the design process. Preliminary analysis of the controllers are performed using models validated with field test data obtained from operational wind turbines, the validation process followed the set of rules included in the official regulations of the electric sector or grid codes. In the last stage an experimental test bench has been developed in order to test and evaluate the proposed controllers and verify its correct performance.
Книги з теми "Energy conversion systems"
Muyeen, S. M., ed. Wind Energy Conversion Systems. London: Springer London, 2012. http://dx.doi.org/10.1007/978-1-4471-2201-2.
Повний текст джерелаL, Freris L., ed. Wind energy conversion systems. New York: Prentice Hall, 1990.
Знайти повний текст джерелаEnergy conversion. St. Paul: West Pub. Co., 1992.
Знайти повний текст джерелаE, Salvagin Carlton, ed. Energy technologies and conversion systems. Englewood Cliffs, N.J: Prentice Hall, 1986.
Знайти повний текст джерелаAssociation, American Wind Energy, ed. Wind energy conversion systems terminology. Alexandria, Va: American Wind Energy Association, 1985.
Знайти повний текст джерелаFuchs, Ewald F., and Mohammad A. S. Masoum. Power Conversion of Renewable Energy Systems. Boston, MA: Springer US, 2011. http://dx.doi.org/10.1007/978-1-4419-7979-7.
Повний текст джерелаJ, McEvoy A., and Commission of the European Communities. Directorate-General for Science, Research and Development., eds. Photoelectrochemical systems for solar energy conversion. Luxembourg: Commission of the European Communities, 1985.
Знайти повний текст джерелаIoinovici, Adrian. Power electronics and energy conversion systems. Chichester, West Sussex: John Wiley & Sons, 2012.
Знайти повний текст джерелаEdward, Doyle, Becker Frederick, and Lewis Research Center, eds. Thermophotovoltaic energy conversion development program. [Cleveland, Ohio]: National Aeronautics and Space Administration, Lewis Research Center, 1998.
Знайти повний текст джерелаDmitrievich, Varfolomeev Sergeĭ, Krylova L, and Zaikov Gennadiĭ Efremovich, eds. Molecular and nanoscale systems for energy conversion. New York: Nova Science Publishers, 2008.
Знайти повний текст джерелаЧастини книг з теми "Energy conversion systems"
Goswami, D. Yogi, and Frank Kreith. "Global Energy Systems." In Energy Conversion, 1–30. Second edition. | Boca Raton : CRC Press, 2017. | Series:: CRC Press, 2017. http://dx.doi.org/10.1201/9781315374192-1.
Повний текст джерелаGülen, Seyfettin C. (John). "Advanced Fossil Fuel Power Systems." In Energy Conversion, 281–445. Second edition. | Boca Raton : CRC Press, 2017. | Series:: CRC Press, 2017. http://dx.doi.org/10.1201/9781315374192-13.
Повний текст джерелаMathew, Sathyajith. "Wind energy conversion systems." In Wind Energy, 89–143. Berlin, Heidelberg: Springer Berlin Heidelberg, 2006. http://dx.doi.org/10.1007/3-540-30906-3_4.
Повний текст джерелаCourault, Jacques. "Electrical Conversion Systems." In Marine Renewable Energy Handbook, 463–570. Hoboken, NJ USA: John Wiley & Sons, Inc., 2013. http://dx.doi.org/10.1002/9781118603185.ch14.
Повний текст джерелаBronicki, Lucien Y. "Geothermal Power Conversion Technology geothermal power conversion technology." In Renewable Energy Systems, 818–923. New York, NY: Springer New York, 2013. http://dx.doi.org/10.1007/978-1-4614-5820-3_233.
Повний текст джерелаTanrioven, Mugdesem. "Energy and Energy Conversion." In Photovoltaic Systems Engineering for Students and Professionals, 1–10. Boca Raton: CRC Press, 2023. http://dx.doi.org/10.1201/9781003415572-1.
Повний текст джерелаStruchtrup, Henning. "Open Systems." In Thermodynamics and Energy Conversion, 177–207. Berlin, Heidelberg: Springer Berlin Heidelberg, 2014. http://dx.doi.org/10.1007/978-3-662-43715-5_9.
Повний текст джерелаKanoğlu, Mehmet, Yunus A. Çengel, and İbrahim Dinçer. "Energy Conversion Efficiencies." In Efficiency Evaluation of Energy Systems, 55–68. New York, NY: Springer New York, 2012. http://dx.doi.org/10.1007/978-1-4614-2242-6_4.
Повний текст джерелаSumathi, S., L. Ashok Kumar, and P. Surekha. "Wind Energy Conversion Systems." In Solar PV and Wind Energy Conversion Systems, 247–307. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-14941-7_4.
Повний текст джерелаKouro, Samir, Bin Wu, Haitham Abu-Rub, and Frede Blaabjerg. "Photovoltaic Energy Conversion Systems." In Power Electronics for Renewable Energy Systems, Transportation and Industrial Applications, 160–98. Chichester, UK: John Wiley & Sons, Ltd, 2014. http://dx.doi.org/10.1002/9781118755525.ch7.
Повний текст джерелаТези доповідей конференцій з теми "Energy conversion systems"
"Photovoltaic energy conversion systems." In IECON 2013 - 39th Annual Conference of the IEEE Industrial Electronics Society. IEEE, 2013. http://dx.doi.org/10.1109/iecon.2013.6700285.
Повний текст джерелаShen, Po-Sheng, Jen-Hao Teng, and Bo-Hsien Liu. "Conversion efficiency Enhancement for SeriesParallel Power Conversion Systems." In 2021 IEEE International Future Energy Electronics Conference (IFEEC). IEEE, 2021. http://dx.doi.org/10.1109/ifeec53238.2021.9661709.
Повний текст джерела"Force-of-gravity conversion systems." In Intersociety Energy Conversion Engineering Conference. Reston, Virigina: American Institute of Aeronautics and Astronautics, 1994. http://dx.doi.org/10.2514/6.1994-4090.
Повний текст джерелаPan, Tinglong, Zhicheng Ji, and Zhenhua Jiang. "Maximum Power Point Tracking of Wind Energy Conversion Systems Based on Sliding Mode Extremum Seeking Control." In 2008 IEEE Energy 2030 Conference (Energy). IEEE, 2008. http://dx.doi.org/10.1109/energy.2008.4781032.
Повний текст джерелаIkura, Michio. "Conversion of Glycerol to Gasoline Additive." In Power and Energy Systems. Calgary,AB,Canada: ACTAPRESS, 2011. http://dx.doi.org/10.2316/p.2011.714-158.
Повний текст джерела"Grid-connected photovoltaic energy conversion systems." In 2015 IEEE 24th International Symposium on Industrial Electronics (ISIE). IEEE, 2015. http://dx.doi.org/10.1109/isie.2015.7281625.
Повний текст джерелаTounsi, Asma, Hafedh Abid, and Khaled Elleuch. "On the Wind Energy Conversion Systems." In 2018 15th International Multi-Conference on Systems, Signals & Devices (SSD). IEEE, 2018. http://dx.doi.org/10.1109/ssd.2018.8570704.
Повний текст джерелаIvanenok, III, Joseph, and Robert Sievers. "Radioisotope powered AMTEC systems." In Intersociety Energy Conversion Engineering Conference. Reston, Virigina: American Institute of Aeronautics and Astronautics, 1994. http://dx.doi.org/10.2514/6.1994-4130.
Повний текст джерелаFord, Donnie R. "Cooperating Expert Systems for Power Systems." In 22nd Intersociety Energy Conversion Engineering Conference. Reston, Virginia: American Institute of Aeronautics and Astronautics, 1987. http://dx.doi.org/10.2514/6.1987-9289.
Повний текст джерелаSutliff, Thomas, and Leonard Dudzinski. "NASA Radioisotope Power System Program - Technology and Flight Systems." In 7th International Energy Conversion Engineering Conference. Reston, Virigina: American Institute of Aeronautics and Astronautics, 2009. http://dx.doi.org/10.2514/6.2009-4575.
Повний текст джерелаЗвіти організацій з теми "Energy conversion systems"
Wrighton, M. Interfacial systems for photochemical energy conversion. Office of Scientific and Technical Information (OSTI), January 1989. http://dx.doi.org/10.2172/5305179.
Повний текст джерелаDen Braven, K. R., and S. Stanger. Modeling and analysis of energy conversion systems. Office of Scientific and Technical Information (OSTI), October 1990. http://dx.doi.org/10.2172/6053752.
Повний текст джерелаMendez Cruz, Carmen Margarita, Gary E. Rochau, and Mollye C. Wilson. Systems Engineering Model for ART Energy Conversion. Office of Scientific and Technical Information (OSTI), February 2017. http://dx.doi.org/10.2172/1343252.
Повний текст джерелаTollin, G. Photochemical energy conversion by membrane-bound photoredox systems. Office of Scientific and Technical Information (OSTI), March 1992. http://dx.doi.org/10.2172/5784171.
Повний текст джерелаTollin, G. Photochemical energy conversion by membrane-bound photoredox systems. Final report. Office of Scientific and Technical Information (OSTI), June 1994. http://dx.doi.org/10.2172/10106148.
Повний текст джерелаThayer, G. R., and C. A. Mangeng. Assessment of dynamic energy conversion systems for radioisotope heat sources. Office of Scientific and Technical Information (OSTI), June 1985. http://dx.doi.org/10.2172/5585004.
Повний текст джерелаHoffert, Martin I. Innovative Energy conversion Schemes for Space Based Strategic Defense Systems. Fort Belvoir, VA: Defense Technical Information Center, January 1988. http://dx.doi.org/10.21236/ada338958.
Повний текст джерелаOstrum, Lee, and Milos Manic. Demonstrating Hybrid Heat Transport and Energy Conversion System Performance Characterization Using Intelligent Control Systems. Office of Scientific and Technical Information (OSTI), September 2017. http://dx.doi.org/10.2172/1407694.
Повний текст джерелаFendler, J. H. Photochemical solar energy conversion utilizing semiconductors localized in membrane-mimetic systems. Office of Scientific and Technical Information (OSTI), August 1991. http://dx.doi.org/10.2172/5489231.
Повний текст джерелаMiller, F. L. ,. Jr, and D. E. Zimmerman. Compilation of Failure Data and Fault Tree Analysis for Geothermal Energy Conversion Systems. Office of Scientific and Technical Information (OSTI), November 1990. http://dx.doi.org/10.2172/882394.
Повний текст джерела