Thermal Analysis of Solar Parabolic Collector Using Goal Programming

Abstract

Energy is the key input to drive and improve the life cycle. Primarily, it is the gift of the nature to the mankind in various forms. Solar thermal systems play an important role in providing non-polluting energy for domestic and industrial applications. Concentrating solar technologies, such as, parabolic trough collectors are used to supply industrial process heat, off-grid electricity and bulk electrical power. In a Solar ParabolicCollector, the reflective surface focuses sunlight on aa heat collecting element (absorber tube) through which fluid is flows. The fluid captures solar energy in the form of heat that can be used in a variety of applications.In this system the main parts are reflecting surfaces and absorber tube. These arevery important for optimum performance of collector. In the present work the behavior of linear solar parabolic Collector for cooking system is studied and analyzed using a Mathematical model. This model has been simulated with MATLAB program. An experimental design is prepared based on the considered parabolic collector parameters: Absorptivity, Reflectivity and Period of Sun Incidence. The Absorber tube is considered at four levels and the reflective surface is considered at two levels, one is Glass mirror and other is polished aluminum. The experiments are conducted according to the Taguchi design on the solar parabolic collector. During experiments, outlet temperature of water and discharge are recorded for each experimental run. This data is analyzed using Goal Programming and optimal parameter combination has been identified.