双层中空玻璃盖板太阳能平板集热器集热性能实验测试研究  

Experimental research on thermal performance of a solar flat-plate collector with double-glass panels

作　　者：刘思宇 赵耀 代彦军[1] Liu Siyu;Zhao Yao;Dai Yanjun(Institute of Refrigeration and Cryogenics,Key Laboratory for Power Machinery and Engineering of M.O.E,Shanghai Jiao Tong University,Shanghai 200240,China)

机构地区：[1]上海交通大学机械与动力工程学院太阳能发电与制冷教育部工程研究中心,上海200240

出　　处：《可再生能源》2018年第8期1125-1130,共6页Renewable Energy Resources

基　　金：国家自然科学基金面上项目(51476099)

摘　　要：文章提出了一种采用双层中空玻璃盖板且吸热板表面镀有蓝钛膜的太阳能平板集热器,并在不同的工质流量和进口温度条件下对该集热器的集热性能进行实验测试,得到该集热器的瞬时集热效率曲线。研究结果表明,该集热器的集热效率曲线截距为0.83,热损系数为3.1 W/(m^2·K),该集热器的集热性能明显优于其他结构的平板集热器。此外,文章建立了该集热器的数学模型,得到该集热器的总热损系数和热迁移因子的数学表达式。The thermal performance of a solar flat-plate collector with double-glass panels has been tested in this paper. The outlet temperatures of the solar flat-plate collector have been measured at different mass flow rates and different inlet temperatures. The instantaneous efficiency curve has been plotted. The intercept efficiency of the solar flat-plate collector is about 83% and the total heat loss coefficient is 3.1 W/（m^2·K）. The expression of thetotal heat loss coefficient and theheat transfer factor of this solar collector has been deduced and the influence factors have been analyzed.

关 键 词：平板集热器 双层盖板 集热效率 热损系数 热迁移因子 

分 类 号：TK513.1[动力工程及工程热物理—热能工程]