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In this communication, a hybrid CPC-PVT-TEG collector integrated with the VAR system has been analyzed, taking into consideration 3 different types of PV modules based on their back cover material, namely Tedlar (Case 1), Aluminium (Case 2) and semi-transparent (glass to glass) (Case 3). The simulation of the whole system, including the hybrid collector and VARS, has been done for a clear day in May in New Delhi using MATLAB 2021b. A comparative study has been conducted between the three cases and based on the results obtained from the analysis, the overall exergy (E EX ), overall exergy efficiency (η EX ), daily electrical energy and overall exergy attained their highest values for Case 2 [Aluminum based] with their values being 289.33 Wh, 28.92%, 2.37 kWh and 2.55 kWh, respectively. The coefficient of performance (COP), which is a measure of the refrigeration effect of the VAR system, attained its highest value for Case 3 [glass to glass based] at 1.28 and lowest value for Case 1 [Tedlar based] at 0.28. Also, from a purely overall exergy aspect, the aluminum-based hybrid CPC-PVT-TEG collector integrated with the VAR system (Case 2) is found to be the most suitable with exergy and exergy efficiency values and from the refrigeration as well as from a thermal exergy aspect, the semitransparent-based or glass to glass-based hybrid CPC-PVT-TEG collector integrated with a VAR system (Case 3) is found to be the most suitable.

energy sources, part a: recovery, utilization, and environmental effects

Comparative study of compound parabolic concentrator - photovoltaic thermal – thermoelectric generator (CPC-PVT-TEG) collector integrated with vapour absorption refrigeration (VAR) system