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Corresponding Author

Nasr, Amany

Subject Area

Electrical Engineering

Article Type

Original Study

Abstract

A concentrated photovoltaic-thermal (CPV/T) collector is a solar collector that combines a photovoltaic (PV) module with a solar thermal collector and produces electricity and heat simultaneously. This paper presents the modeling and simulation of CPV/T collector model fed a small campus in Mansoura university- Egypt (31° 04′N, 31° 21 ′ E) using MATLAB code. The campus needs the electricity and hot water for operation, so using CPV/T collector is a promising idea. The estimated load for different seasons is taken as 340 kWh/day for the summer season and 230 kWh/day for the winter. The electric and thermal energy and their efficiencies are calculated in the designed model. Also, the impact of the irradiation concentration ratio on both electric and thermal efficiencies are investigated. The simulation results show that the temperature of the CPV system using water cooling is reduced under 50oC and therefore the electrical efficiency and electrical power output of the CPV are increased. In addition, high water flow rate can directly extract thermal heat through the CPV/T array. This obviously enhances the thermal efficiency of CPV/T system. The average cogeneration efficiency of the CPV/T system reaches up to 60.52%.

Keywords

Photovoltaic (CPV); water cooling; PV electrical and thermal efficiency; Cogeneration efficiency

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