Abstract:
Present investigation studied the influence of flow and geometric factors on the behavior of solar air passage (SAP) offered
among the circular impingement air jets. The experimentation is performed for the variant criterion which is relevant to establish
the best design of SAP. The experimental examination shows that the air impingement jet improves the thermal efficiency of a
collector but at concurrent period friction factor rate also increases which reduces the whole functioning of arrangement. To
overcome this analytical hierarchy process and order of preference by similarity to ideal solution (AHP-TOPSIS) technique is
adopted using different performance condition in order to find out the best set of geometric parameters which provides the highest
thermal efficiency and lowest friction factor within the SAP. The superlative set of geometric parameters achieved as a response
of considered process is relative width ratio of 3, the relative height ratio of 1.0, relative pitch ratio of 9.5, the angle of arc 550 and
tream Reynolds number of 19,000 respectively
