THE GLASS-TO-METAL SEALING PROCESS IN PARABOLIC TROUGH SOLAR RECEIVERS

摘要：

This paper introduces the structure and components of the receiver tube (HCE) in the parabolic trough solar thermal power system, and presents the technologic difficulty of achieving good glass-to-metal sealing during the process of receiver tube manufacture. The glass-to-metal sealing of HCE failure /degradation is the single largest cost factor in the 9 parabolic trough solar power plants in the USA, which also results in the system efficiency reduction. The article also elaborates the principle of glass-to-metal sealing and various demands on material for the sake of fine sealing. Aiming to the current technique practice of Kovar-to-glass sealing, technological process and optimal processing parameters are put forward based on research and experiments.

作者: Dongqiang Lei Zhifeng Wang Fengli Du

作者单位: Institute of Electrical Engineering, CAS P.O.Box 2703 Beijing 100080, China Himin Solar Energy Group Co.Ltd De zhou, Shandong

会议类型: 国际会议

会议名称: 2007世界太阳能大会(Proceedings of ISES Solar World Congress 2007)

会议地点: 北京

会议语种:英文

在线出版日期: 2007-09-18（万方平台首次上网日期，不代表论文的发表时间）