ENGINEERING JOURNAL CHIANG MAI UNIVERSITY

Volume 27, No. 01, Month APRIL, Year 2020, Pages 118 - 129

Effect of water mass flow rate on pv/t module for electrical power and hot water generation

Thoranis Deethayat and Attakorn Asanakham

Abstract Download PDF

This paper studied effect of water flow rate on power generation and hot water production performance of a 150 Wp photovoltaic/thermal (PV/T) single crystalline module having an area of 828 mm x 1,600 mm. The unit was connected to a 50 L hot water storage tank. The module was facing south with 18o inclination. A model for predicting hot water temperature generated from the module, average module temperature and generated electrical power was presented and the calculated results agreed well with those of the experimental data. The model was also used to predict the performance on generated power and hot water temperature at various water mass flow rates. It could be found that with adjusting the suitable mass flow rate related to the solar radiation level, the performance on power generation could be improved without any effect on the hot water temperature in the storage tank. At low solar radiation level and high temperature of hot water in the storage tank, lower the mass flow rate resulted in higher the generated electrical power.

Keywords

Power Generation, Hot Water Generation, PV/T Module, Performance, Mass Flow Rate

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