平板微热管阵列-CPC太阳能空气集热器集热特性  

Experimental Investigation on the Thermal Performance of a New CPC Solar Air Collector Based on Flat Micro-Heat Pipe Arrays

作　　者：朱婷婷[1] 刁彦华[1] 赵耀华[1] 李凤飞[1] 邓月超[1] 

机构地区：[1]北京工业大学建筑工程学院,北京100124

出　　处：《工程热物理学报》2015年第11期2471-2476,共6页Journal of Engineering Thermophysics

基　　金：北京市自然科学基金重点项目(No.Z1004020201201);北京市教委科技计划面上项目(No.KM201510005022)

摘　　要：对新型平板微热管阵列-复合抛物面太阳能空气集热器的结构、集热特性,包括时间常数、集热效率及阻力性能进行了理论分析和实验研究。通过实验研究和对集热器性能的分析,得出了该集热器的瞬时效率曲线和阻力特性曲线。研究结果表明,该集热器在春季的平均集热效率在53%左右,在风量60~320 m^3/h的工况下,阻力小于22 Pa。此外,在空气流量为260 m^3/h时,测得该集热器的时间常数约为16 min。An investigation on the design,thermal performance（time constant and efficiency）and flow resistance characteristic of a novel type of CPC（Compound Parabolic Concentrator）solar air collector by using flat micro-heat pipe arrays（FMHPA） was carried out theoretically and experimentally.Instantaneous efficiency and flow resistance curves are obtained in the study.The experimental results showed that the heat collecting efficiency of the collector is approximately 53% in spring.And the flow resistance is less than 22 Pa when the air flow rate is less than 320 m^3/h.Moreover,the time constant of the collector is about 16 min with the air flow rate of 260 m^3/h.

关 键 词：太阳能 CPC 微热管阵列 集热效率 时间常数 

分 类 号：TK513[动力工程及工程热物理—热能工程]