Analytical Investigations on the Thermal and Thermohydraulic Performance of Double Flow Double Exposer Solar Air Heater

摘要

This study presents an analytical investigation on thermal and thermohydraulic performance of double flow, double and single exposer solar air heaters with corrugated and flat plate absorber. The performance of collectors are analyzed with different parameters such as mass flow rate and insolation. In order to assess the accuracy of the present mathematical model, the results of single exposer collectors are compared with experimental results and found reasonably well. The results show that the performance of double exposer collectors have significantly higher than single exposer collectors. However, corrugated absorber performance is more superior to the flat plate absorber.