Effects of Receiver Parameters on Solar Flux Distribution for Triangle Cavity Receiver in the Fixed Linear-Focus Fresnel Lens Solar Concentrator

The objective of the study is to investigate and optimize solar flux uniformity a fixed linear-focus Fresnel lens concentrator using triangle cavity receiver. effects receiver parameters including vertical distance from opening plane f, internal surface absorptivity αab, end reflection reflectivity ρr, declination angle δ ω on factor (UF) were carried out. are evaluated with significance test critical factors. results showed that increase in f would result an UF. average UF = 600, 625, 650, 675 700 mm, respectively, 0.5030, 0.5858, 0.6337, 0.6576 0.6784 for range 0–60°. Moreover, increases as αab decreases when other constant 0–8°. ρr has limited effect until becomes relatively larger smaller. Furthermore, most significant UF, followed by δ, αab. Setting suitable economical effective way improve