Abstract
In this paper, a comparative analysis of different types of photovoltaic thermal (PVT) air collectors, namely: (i) unglazed hybrid PVT tiles, (ii) glazed hybrid PVT tiles, and (iii) conventional hybrid PVT air collectors, has been carried out for the composite climate of Srinagar, India. It has been observed that the overall annual thermal energy and exergy gain of unglazed hybrid PVT tiles air collector are higher by 27% and 29.3%, respectively, as compared to glazed hybrid PVT tiles air collector and by 61% and 59.8%, respectively, as compared to conventional hybrid PVT air collector. It has also been observed that the overall annual exergy efficiency of unglazed and glazed hybrid PVT tiles air collectors is higher by 9.6% and 53.8%, respectively, as compared to conventional hybrid PVT air collector. On the basis of a comparative study, it has been concluded that CO2 emission reduction per annum on the basis of overall thermal energy gain of unglazed and glazed hybrid PVT tiles air collectors is higher by 62.3% and 27.7%, respectively, as compared to conventional hybrid PVT air collector, and on the basis of overall exergy gain it is 59.7% and 22.7%.
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