Abstract
A trapezoidal cavity receiver for a Linear Fresnel Solar Collector was investigated in this paper. Seven parameters are analyzed to visualize the effect of each one on the Output Thermal Power (OTP) in order to optimize it by finding the optimum dimensions. A Monte Carlo ray tracing method was used to predict the optics and energy behavior of the studied plant, then a mathematical program was developed to obtain the heat flux density distribution in absorber tubes. CFD simulation was carried out to determine temperature distribution on the absorber tubes. The effect of distance between Fresnel mirrors, absorber tubes diameter, distance between absorber tubes, their position according to cavity depth and HTF velocity are evaluated. The cavity is considered to be under vaccum and Air/ Haynes 6B are the chosen couple HTF/Material tubes.
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