Performance Analysis of a Solar PVT/Water System

Author(s) : Raviprasad C. Narayanan , Ajay Kumar PV

Volume & Issue : VOLUME 1 / 2016 , ISSUE 1

Page(s) : 22-32


Abstract

Solar PVT is a system that converts solar energy from the sun in to electrical energy as well as heat energy. For the conversion of solar energy in to electrical energy, solar PV cells will be used and for the conversion of solar energy in to heat energy, solar heat absorbers will be used. In a solar panel when the temperature of the PV cells increases, the electrical efficiency of the panel decreases. In PVT system, heat from the solar cells will be absorbed by the solar heat absorbers which results in the decrease in temperature of solar PV cells and hence increases the electrical efficiency along with thermal output. In the current paper four C-channels has been used as the heat absorbers which is adhered to the back surface of the solar panel. Fabrication of the experimental setup is done using the 12.7mm depth aluminium channels. The thermal and electrical analysis of the PVT and the normal solar panel at same operating conditions are conduct. The Electrical efficiency of the normal solar panel is obtained as 9.36%where in PVT, the same is obtained as 9.43% under test conditions. It has been found that the hourly based instantaneous thermal efficiency of PVT is between 32.72% and 36.92% and the hourly based overall thermal efficiency is between 55.34% and 60.33%. maximum.



Keywords

Solar energy, Solar PVT, Thermo syphon

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