Energy and exergy analysis of hybrid photovoltaic thermal water collector for constant collection temperature mode |
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| Affiliation: | 1. Department of Mechanical Engineering, University of Sistan and Baluchestan, Zahedan, Iran;2. Department of Mechanical Engineering, Mashhad Branch, Islamic Azad University, Mashhad, Iran;1. Centre for Energy Studies, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India;2. Department of Agricultural Engineering, College of Food & Agricultural Sciences, King Saud University, P.O. Box 2460, Riyadh 11451, Saudi Arabia;1. Independent Researcher, Tehran, Iran;2. Young Researchers and Elite Club, Tehran, Iran;3. School of Engineering, RMIT University, Australia;1. Faculty of Science and Technology, Universiti Kebangsaan Malaysia, 43600 Bangi, Selangor, Malaysia;2. Solar Energy Research Institute, Universiti Kebangsaan Malaysia, 43600 Bangi, Selangor, Malaysia;1. Faculty of Applied Sciences, Universiti Teknologi MARA, Perlis, 02600 Arau, Perlis, Malaysia;2. Faculty of Computer Sciences and Mathematics, Universiti Teknologi MARA, Perlis, 02600 Arau, Perlis, Malaysia;3. Faculty of Applied Sciences, Universiti Teknologi MARA Shah Alam, 40450 Shah Alam, Selangor, Malaysia |
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| Abstract: | This paper deals with the analysis of hybrid photovoltaic thermal (PVT) water collectors under constant collection temperature mode unlike constant flow rate mode. The analysis has been carried out in terms of thermal energy, electrical energy and exergy gain for two different configurations namely case A (collector partially covered by PV module) and case B (collector fully covered by PV module). The results are compared with the conventional flat plate collector (FPC). The effect of collector area covered by PV module on the performance of hybrid PVT water collector has been studied. The characteristic equations have also been developed for both the cases.It has been observed that case A is more favorable for thermal energy point of view, while case B is suitable for electricity generation. On the basis of the numerical calculations the annual thermal energy gain is found to be 4167.3 and 1023.7 and annual net electrical energy gain is 320.65 and 1377.63 for cases A and B respectively. The annual overall thermal energy gain is decreased by 9.48% and an annual overall exergy gain is increased by 39.16% from case A to case B. |
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