The solar reflector used here with the solar collector to increase the reflectivity of the collector. The reflector concentrates both direct and diffuse radiation of the sun toward the collector. To maximize the intensity of incident radiation, the reflector was allowed to change its angle with daytime. The radiations coming from the sun’s energy were converted into heat, and then this heat was transferred to the collector fluid, water. A prototype of a solar water heating system may be constructed and obtained the improvement of the collector efficiency experimentally with the application of reflector. Thus, the solar water heating systems provide the best thermal performance compared to the previous available systems for performance measurement of Flat plat Collector.
Sorry B.K. but I do NOT understand your answer. Please explain.
The efficiency of the collector is the ratio between the energy introduced in the fluid and the received radiant energy. As far as I understand the question it is not yet the problem of how to increase the efficiency but only how to analyze it.
The problem is how to quantify the radiant incoming energy since the energy introduced in the fluid is easy to compute as E(J)=Q(m^3/s)*Rho(kg/m^3)*Cp(J/kg/°C)*(Tout-Tin)(°C).
It will be interesting especially for Mr. Saad Najeeb to get suggestions in this direction.
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