The Effect of Mass Flow Rate on the Thermal Performance for Solar Collector with Compound Parabolic Concentrator During the Summer Season

Abstract

Present study investigated the effect of the summer season, on the thermal performance (heat energy and thermal efficiency) of the solar collector with CPC without cover, by designing a proper solar collector with compound parabolic concentrator (CPC). It was implemented a solar collector with a cylindrical receiver diameter 1.5 inches and an acceptance angle of 45˚with concentration ratio of 2.613. The surface reflector was made from stainless steel an aperture area of 0.87 m2. The orientation of the solar collector at 150˚ was set as (south-east) direction and 45˚ inclined angle at Baghdad city. The experimental results showed that the performance of the solar collector was improved significantly as the water circulation mass flow rate increased. The percentage increase in the heat energy and thermal efficiency are ( 69.95 and 68.68) % resectivelly in case of the mass flow rate of 300 kg/hr with respect to 60 kg/hr.