Original Article |
2014, Vol.36, No.2, pp. 201-208
Performance study of solar air heater duct having absorber plate with V down perforated baffles
Sunil Chamoli and Narendra Thakur
pp. 201 - 208
Abstract
This paper presents results of a study of the performance of solar air heaters with V down perforated baffles as roughness on the air flow side of the absorber plate. Investigations have been carried out using a mathematical model to study the effects of ambient conditions, operating and design parameters on effective efficiency of such air heaters. The thermal and effective efficiencies differ only marginally at lower flow rates. With an increase in the flow rate, the difference between the thermal and effective efficiencies increases because of the increase in the pumping power. The results of the study are presented in the form of plots to show the effect of ambient, design and operating conditions on thermal and effective efficiency.