Effective efficiency evaluation is one of the important parameters in designing and selection SAH. In this research article author have evaluated effective SAH using different coarseness configuration attached to underside collector used by various research. Correlation developed researchers for has been efficiency. each compared suggested that which be on basis comparison.

This paper focuses on Mathematical Modelling of Single Glazed and Double Solar air heater (SAH) which is special kind heat exchanger that transfers thermal energy from the solar radiation to fluid flowing inside collector. The most potential applications SAH supply hot for heating buildings, maintain a comfortable environment especially in winter season, preheating, desiccant refrigeration, dry...