This project is related to the "performance" of a solar collector, can be enhanced by several performance characteristics; the peak efficiency and artificial roughness range value is such type variable. The majority of thermal solar collectors typically have a value between 60% and 80%, although this number should be interpreted cautiously and taking into account the surface area it is based on.

CFD models were used to assess the performance of the solar flat plate collector (SFPC). It was found that water greater density and thermal conductivity contributed to its increased efficiency.

According to the modeling results, the air and water temperatures were increased to 73 °C and 79 °C, respectively. Hybrid Photo voltaic temperature (PVT) Systems simultaneously converts solar radiation to electricity and thermal power.

Performance, reliability and creditability besides they work on noiseless environment. Efficiency of solar cell will drop when the temperature of it increases.

The efficiency of the system will lose about 0. 3% when cells temperature increased by 1ºC.

Air can be used to cool the surface temperature of the photovoltaic panel. .