In this paper, an attempt has been made for evaluating the overall thermal energy and exergy provided in the form of heat and electricity from hybrid photovoltaic/thermal (PV/T) solar water heating system considering five different cases with and without withdrawals. The annual heat and electricity are evaluated by considering the four types of weather conditions for five different cities of India (New Delhi, Bangalore, Mumbai, Srinagar, and Jodhpur). It is found that the annual maximum heat and electricity are obtained in case (ii) (energy: 4263.2 kW h and exergy: 529.7 kW h) and minimum in case (v) (energy: 1038.8 kW h and exergy: 196.9 kW h) as compared to all other cases for New Delhi condition. Annual maximum and minimum energy gains and efficiency are obtained for Jodhpur and Srinagar City, respectively. This type of configuration (hybrid PV/T) is very useful in the remote and urban areas, where the electricity and hot water can be obtained simultaneously.

Topics
Electrical properties and parameters, Electrical energy, Energy efficiency, Photovoltaics, Solar architecture, Solar energy, Laws of thermodynamics, Thermodynamic states and processes, Thermodynamic properties, Atmospheric radiation
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2010
American Institute of Physics
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