Selective Absorber Coatings and Technological Advancements in Performance Enhancement for Parabolic Trough Solar Collector  

作　　者：ASAAD YASSEEN Al-Rabeeah ISTVAN Seres ISTVAN Farkas 

机构地区：[1]Doctoral School of Mechanical Engineering,Hungarian University of Agriculture and Life Sciences,Godollo H-2100,Hungary [2]Institute of Mathematics and Basic Science,Hungarian University of Agriculture and Life Sciences,Godollo H-2100,Hungary [3]Institute of Technology,Hungarian University of Agriculture and Life Sciences,Godoll,H-2100,Hungary

出　　处：《Journal of Thermal Science》2022年第6期1990-2008,共19页热科学学报（英文版）

基　　金：supported by the Stipendium Hungaricum Program;by the Doctoral School of Mechanical Engineering,Hungarian University of Agriculture and Life Sciences,Godollo,Hungary。

摘　　要：Parabolic trough solar collector systems are the most advanced concentrating solar power technology for large-scale power generation purposes. The current work reviews various selective coating materials and their characteristics for different designs in concentrating solar power. Solar selective absorbing coatings collect solar radiation and convert it to heat. To promote higher efficiency and lower energy costs at higher temperatures requires, this study aims to analyse the fundamental chemistry and thermal stability of some key coatings currently being used and even under investigation to find reasons for differences, information gaps and potential for improvement in results. In recent years, several novel and useful solar absorber coatings have been developed. However, qualification test methods such as corrosion resistance, thermal stability testing and prediction of service life, which have essential technical value for large-scale solar absorbers, are lacking. Coatings are used to enhance the performance of reflectors and absorbers in terms of quality, efficiency, maintenance and cost. Differentiated coatings are required as there are no uniformly perfect materials in various applications, working conditions and material variations. Much more knowledge of the physical and chemical properties and durability of the coatings is required, which will help prevent failures that could not be discovered previously.

关 键 词：Parabolic trough solar collector selective coatings absorber receivers optical properties thermal stability 

分 类 号：TK513.1[动力工程及工程热物理—热能工程]