几种太阳能空气集热器热性能测试与改进实验研究  

THERMAL PERFORMANCE INVESTIGATION AND IMPROVEMENT OF SOLAR AIR COLLECTOR

作　　者：洪亮[1,2] 原郭丰[2] 李兴[2] 徐立[2] 李志伟[2] 王志峰[2] 

机构地区：[1]西藏自治区能源研究示范中心,拉萨850001 [2]中国科学院电工研究所,中国科学院太阳能热利用及光伏系统重点实验室,北京100190

出　　处：《太阳能学报》2015年第2期467-472,共6页Acta Energiae Solaris Sinica

基　　金："十二五"国家科技支撑计划(2012BAA05B06);国家自然科学基金(51106150);西藏自治区自然科学基金

摘　　要：对几种现有的空气集热器性能进行测试和分析,并在相关测试基础上,对空气流道和配风方法进行改进,进一步强化空气集热器传热特性和气流的均匀性,改进后的平板空气集热器截距效率达到77%,综合热损系数为5.62 W/(m2·K)。Solar air collector is a simple device used for space heating, drying and desalination etc., and the key technology is to improve the thermal performance and decrease the pressure drop of the solar air collector at same time. Several kinds of solar air collectors were tested and compared firstly, and then an improved solar air collector was designed to improve the air channel and air distribution structure design which would strengthen heat transferring performance and air flow uniformity of solar air collector. The intercept efficiency and heat loss coefficient of improved solar air collector are 0.77 and 5.62 W/（m^2·K）, respectively.

关 键 词：太阳能空气集热器 热性能 综合热损系数 压降 

分 类 号：TK513.5[动力工程及工程热物理—热能工程]