DESIGN AND EVALUATION OF PERFORMANCE OF SOLAR AIR HEATER

In this paper, two Solar Air heaters (SAH) were designed, constructed and tested. The absorber plate of the first one was made of black painted wood, while the second one was made of black painted Aluminum sheet. Their performance were investigated and compared with each other under Jordanian climate. The experimental work was conducted under variable tilt angle and inlet velocity into the heater. In general, it was found that, the wood heater has higher efficiency that that of the metal one. The maximum efficiency for both the wood and metal air heaters were found to be 94.6 and 87.6 respectively. These efficiencies were found a tilted angle of 22 degree and inlet air velocity of 1.8 m/sec