Exploring the influence of optical and thermal parameters on the effectiveness of parabolic trough collector receiver units

作     者：Khaled Mohamad 

作者机构：Engineering and Natural Sciences FacultySDU UniversityAlmatyKazakhstan 

出 版 物：《Clean Energy》 (清洁能源（英文）)

年 卷 期：2024年第8卷第4期

页      面：15-33页

核心收录：

学科分类：070207[理学-光学] 07[理学] 08[工学] 0803[工学-光学工程] 0702[理学-物理学] 

基　　金：following entities for their kind support:Engineering and Natural Sciences Department at SDU University MITP(Mandelstam Institute for Theoretical Research)at the University of the Witwatersrand 

主　　题：parabolic trough collector heat transfer fluid receiver unit outer cover absorber pipe 

摘      要：This study investigates the optimization of physical parameters in a parabolic trough collector receiver unit to improve its thermal and optical *** parameters include the transmissivity,reflectivity,absorptivity,emissivity and thermal conductivity of the outer cover and absorber *** study utilizes a novel experimental design and a simulation model that accounts for the infrared reflectivity inside the *** simulation results were validated by the experimental data,with a maximum deviation of 8%.The study analyses the effects of varying the physical parameters on the heat transfer fluid temperature,total plant efficiency,temperature profiles,temperature gradients and thermal *** study finds that increasing the reflectivity and decreasing the emissivity of the outer cover and the absorber pipe significantly enhance the performance,with maximum increases of 25.8%and 26.5%in total efficiency,*** study also finds that increasing the thermal conductivity of the absorber pipe reduces the temperature gradients and thermal stress,with maximum decreases of 42.2%and 29%,*** study provides valuable in­sights for optimizing the receiver design and operation in solar-thermal systems.