Recently, China National Solar Thermal Energy Alliance’s member-Weihai Golden Sun Co., Ltd.(hereinafter referred to as the Huiyin group) launched a new generation of heat collection element, to further consolidate its leading position in CSP industry.
This new generation of heat collection elements, which adopts selective absorption coating based on cermet coating, exhibits an excellent performance and high temperature stability. This coating which was especially designed for the molten salt heat collection element can withstand the working temperature of 600 ℃. Performance indicator for the absorption is 96.2%, emissivity under 400℃ is 7.8%, and heat loss at 400℃ is 220W/m.
The design of the heat collection element can also avoid intergranular stress corrosion of bellows, protecting bellows from thermal shock and increasing the effective length to 97.8%. In addition, the product also uses a unique solution to the hydrogen penetration problem, to solve the problem of 30% output power drop caused by hydrogen penetration.(translated by zhaorui Yang)
