摘要
综述了太阳集热管(器)寿命研究及选择性吸收材料老化性能检测方法的研究进展,分析认为单盖板平板型太阳集热器寿命研究同太阳选择性吸收材料的老化性能的检测方法一样要考虑温度(循环)、湿度及环境气氛的影响,而全玻璃真空太阳集热管(器)在长期运行过程中则会发生惰性气体及水分通过罩管玻璃向夹层渗透、吸气剂的变化而降低夹层真空度,气体导热损失增大,涂层(镀膜)和基底材料的相互作用、罩管积灰(尘)及内管结垢等改变涂层(镀膜)的光学性能,进而导致热性能的降低。最后,提出全玻璃真空太阳集热管(器)的寿命研究并形成检测方法的基本思路。
Test standards for durability of solar collectors and degradation of solar selective materials were reviewed. Elevated temperature （cycle） , humidity, and atmospheric corrosivity are the primary factors in the service life estimation investigation of single-glazed flat plate solar collectors, and standard practices for evaluating solar absorptive materials as well. However, degradation of all glass evacuated-tubular solar collectors is caused by diffusion of gases through the glass envelope, deterioration of getter, gas conduction loss, interaction between the coating and substrate, dust on the glazing, and fouling on the inner tube. Accelerated life testing procedure for all glass evacuated-tubular solar collectors was outlined based on the literature analysis.
出处
《能源工程》
2010年第1期19-25,共7页
Energy Engineering
