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Optical, Energetic and Exergetic Analyses of Parabolic Trough Collectors |
| OZTURK Murat;CICEK BEZIR Nalan;OZEK Nuri |
| Department of Physics, Science-Literature Faculty, Suleyman Demirel University, Isparta, Turkey |
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| Cite this article: |
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OZTURK Murat, CICEK BEZIR Nalan, OZEK Nuri 2007 Chin. Phys. Lett. 24 1787-1790 |
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Abstract Parabolic trough collectors generate thermal energy from solar energy. Especially, they are very convenient for applications in high temperature solar power systems. To determine the design parameters, parabolic trough collectors must be analysed with optical analysis. In addition, thermodynamics (energy and exergy) analysis in the development of an energy efficient system must be achieved. Solar radiation passes through Earth's atmosphere until it reaches on Earth's surface and is focused from the parabolic trough collector to the tube receiver with a transparent insulated envelope. All of them constitute a complex mechanism. We investigate the geometry of parabolic trough reflector and characteristics of solar radiation to the reflecting surface through Earth's atmosphere, and calculate the collecting total energy in the receiver. The parabolic trough collector, of which design
parameters are given, is analysed in regard to the energy and exergy
analysis considering the meteorological specification in May, June, July and August in Isparta/Turkey, and the results are presented.
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| Keywords:
01.55.+b
45.20.Dh
92.60.Vb
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Received: 22 December 2006
Published: 25 June 2007
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[1] Sahin A 1995 PhD Thesis (Middle East TechnicalUniversity, Ankara)
[2] Duffie J A, Beckman W A 1984 Solar Engineering of ThermalProcesses (New York: Wiley)
[3] Look D C and Sundvold P D 1983 Solar Energy 31 545
[4] You Y and Hu E J 2002 Appl. Therm. Engin. 357
[5] Kotas T J 1985 The Exergy Method of Thermal PlantAnalysis (Malabar, FL: Krieger) |
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