Hay Approach to investigate the effect of earth reflection coefficient on the solar collector operation

The performance of a solar collector is affected by its orientation and its slope angle with the horizontal plane. In the present article, the optimum slope angle and theoptimum slope and azimuth angles of solar collectors are calculated utilizing Liu, Klein and Hay models in Mazandaran-Iran. The results showed that the energyreached to the collector oriented at optimum slope angle increased about 25.4% comparing to the horizontal oneutilizing Liu model. This was about 31.28% and 57.76% for the collector oriented at optimum slope and azimuth angles utilizing Klein and Hay models, respectively.Moreover, the results showed that the collector oriented at Hay optimum angles received significantly more energy. Finally, the effect of earth reflection coefficienton the maximum radiation reached by the collector oriented at Klein and Hay optimum angles was investigated. The results showed that increasing of theearth reflection coefficient increases the maximum reached radiation

کلیدواژه ها:

Solar Collector ، Slope Angle ، Azimuth Angle ، Earth Reflection Coefficient