Abstract
The current study conducts the performance estimate of a new photovoltaic thermal (PV/T) system using compact linear Fresnel reflector (CLFR) and Ag/CoSO 4 -PG nanofluids beam splitting device (BSD). Design method and working flow of the PV/T system are introduced. The absorption rate of the nanofluids BSD is 58.6% in the full spectral range. The optical behaviour evaluation results reveal a relatively high uniform sunlight irradiance distribution on the nanofluids BSD bottom and a single-peak shape sunlight irradiance distribution on the PV module. The optical efficiency of the PV/T system is 91.5% with a sun-tracking error of 0.2°. The operation behaviour of the PV/T system is analyzed by using the Computational Fluid Dynamics method. The analysis results indicate that the photoelectric efficiency of the PV module and thermal efficiency of the PV/T system are 30.2% and 49.3%. The thermal efficiency will increase when the inlet nanofluids flow velocity augments, or when the inlet nanofluids temperature decreases.
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