Parabolic trough solar collector: A review on geometrical interpretation, mathematical model, and thermal performance augmentation

Abstract In recent decades, solar energy has emerged as the most promising renewable source and best alternative to conventional due its abundant availability, free, clean, no atmospheric hazards, eco-friendly, sustainable nature, other factors. Because of wide temperature range (up 400 °C), parabolic trough collector is commonly used in concentrated power technology. A can be divided into two types based on applications: low medium high temperature. The first category widely utilized household hot water, water purification, industrial process heating, desalination, food processing, among uses. Another electricity-producing process. present review paper focuses various aspects collector, such general description, geometrical interpretation, mathematical models dealing with parameters performance calculations, modeling using a computational fluid dynamics tool, simulator, thermal resistance model, losses. Furthermore, highlights advances enhancement by techniques, mainly modified working (nanofluid), turbulators, surface absorber tube, are presented literature form summarized table. This will great help researchers who have keen interest systems.