带遮热板的热管式真空管集热器中温性能的理论与实验研究  

THEORETICAL AND EXPERIMENTAL RESEARCH ON THE MEDIUM TEMPERATURE THERMAL PERFORMANCE OF HEAT PIPE BASED EVACUATED TUBE SOLAR COLLECTOR WITH HEAT SHIELD

作　　者：张昕宇[1,2] 由世俊[2] 葛洪川 高岩 徐伟[1] 何涛[1] 郑雪晶[2] 邓昱[1] 

机构地区：[1]中国建筑科学研究院国家太阳能热水器质量监督检验中心(北京),北京100013 [2]天津大学环境科学与工程学院,天津300072 [3]北京金阳科创太阳能技术有限公司,北京100083 [4]"绿色建筑与节能技术"北京市重点实验室,北京100044

出　　处：《太阳能学报》2016年第1期116-121,共6页Acta Energiae Solaris Sinica

摘　　要：对带遮热板的真空管型集热器进行理论分析和实验研究,通过与不带遮热板的真空管型集热器传热过程进行对比分析,计算表明带遮热板的真空管型集热器的辐射热损降低约22.7%。对两种集热器的中温性能进行对比实验,结果表明:带遮热板的真空管型集热器的中温热性能更加优越,在129℃高温工况时,其热效率为55%。The thermal performance of evacuated tube solar collector with heat shield was determined by theory analysis and comparative test. The comparative theoretical analysis has been done on the heat transfer procedure of the solar collector with and without heat shield. The calculation results showed that the radiation heat loss from the evacuated tube solar collector with heat shield was lower 22.7% than that without heat shield. The comparative test on the medium temperature thermal performance to the solar collector with and without heat shield has been done, the test results implied that the solar collector with heat shield has a better thermal performance at medium temperature situation, and the collection efficiency is 55% at the inlet temperature 129 ℃.

关 键 词：热管式真空管集热器 遮热板 辐射热损 集热器热效率 

分 类 号：TK511[动力工程及工程热物理—热能工程]