An online tool was also developed to help researchers to quickly calculate the μ value for their PTC designs. A useful visual tool is also presented for obtaining and comparing μ for a range of concentration ratios and rim angles. The values of μ for several real PTC designs were then evaluated and compared. The relationship between the visual flux distribution and μ is discussed. Then, taking a PTC with a concentration ratio C = 10, the model was simulated for various rim angles ( ψ). ![]() Validation was performed by comparing the ray tracing of a single ray with measurements obtained in a 2D drafting program. The approach, based on ray tracing, was used to determine the locations on a receiver surface where the incoming rays are captured. This paper presents a method for quantifying the uniformity of flux distribution as a single numerical factor ( μ), that can be applied to any PTC design. The existing studies have used only a visual approach to depict the homogenization of solar flux, which is subjective rather than quantitative. In the second step, computational fluid dynamics (CFD) simulations are carried out to analyze and to. In the first step, the concentrated solar heat flux densities in the solar concentrator focal zone are calculated by SOLTRACE software. In order to achieve this goal, the adopted procedure comprises two main steps. ![]() In a parabolic trough collector (PTC), the varying solar flux distribution at the receiver’s surface causes high temperature gradients, which are harmful to the material. In this study, the parabolic trough collector's (PTC) performance is analyzed.
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