Energy and exergy analysis of solar photovoltaic thermal system: experimental and numerical verificatio
Özet
In this study, the electrical and thermodynamic performance of a
flat-plate liquid PV/T system was investigated, and the experimental results
were verified with a numerical model implemented. The simulation analyses
showed that the increasing inlet and ambient temperature had a negative effect
on thermal efficiency and the highest thermal efficiency was obtained at
800 W/m2 solar radiation. The optical efficiency of the experimental system
was verified with the simulation and reported as 45.8% and 47.9%,
respectively. Hourly electrical, thermal, and total energy efficiencies obtained
hourly on a daily basis were calculated and varied between 12–13.8%,
36.1–45.2%, and 49.1–58.4% respectively on daily basis. The hourly exergy
analyses were also carried out and the results showed that the exergy
efficiencies changed between 13.8–14.32%. The annual total thermal and
electricity energy outputs were calculated as 1,912 kWh and 556.8 kWh
respectively.
