新V型内聚光CPC热管式真空管集热器的热性能
Thermal Performance Research of a New V-type Internal-concentrating CPC Heat-pipe Evacuated Tube Collectors
摘 要
基于圆管型复合抛物聚光器(CPC)的研究, 由于接受体和CPC反光板之间存在缝隙而造成大量漏光损失, 设计了一种可以减少漏光损失和热损的新V型CPC反光板, 并综合利用热管式真空管集热器的优越性, 开发出一种新V型内聚光CPC热管式真空管集热器。首先给出了其设计结构, 并对其进行传热分析, 推导出该型集热器的集热效率、总热损系数的计算方法, 再进行室外动态性能试验, 测定了它的效率曲线, 试验结果与理论计算值较符合。
内聚光CPC
热管式真空管
集热效率
总损失系数
Light leakage losses
Internal-concentrating CPC
Heat-pipe evacuated tube collectors
Thermal collection efficiency
Total heat loss coefficient
Abstract
Based on the study of tube-type CPC, due to gaps between the acceptor and the CPC reflectors, a large number of light leakage losses are produced, this paper designs a new V-type CPC reflectors which can reduce light leakage loss and heat loss, and make the comprehensive utilization of the advantages of heat-pipe evacuated tube collector, then developing a new V-type Internal-concentrating CPC Heat-pipe evacuated tube collectors. First, the design structure is given, and produce the method of calculation of the instantaneous thermal collection efficiency and the total heat loss coefficient by analyzing its heat transfer process. Then in order to get its efficiency curve, the outdoor dynamic performance test is conducted, the test results and the theoretical value is more in line.
中图分类号 TK514
所属栏目 新能源技术
基金项目
收稿日期 2012/10/6
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备注王俊(1988-), 男, 硕士研究生, 从事太阳能热发电项目研究。
引用该论文: Wang Jun,Wang Jun,Li Kaichuang,Zhang Bowen. Thermal Performance Research of a New V-type Internal-concentrating CPC Heat-pipe Evacuated Tube Collectors[J]. Power & Energy, 2012, 33(6): 577～583
王俊,王军,李开创,张博文. 新V型内聚光CPC热管式真空管集热器的热性能[J]. 电力与能源, 2012, 33(6): 577～583
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参考文献
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【3】Yong Kim, GuiYoung Han, Taebeom Seo. An evaluation on thermal performance of CPC solar collector[J]. Interna-tional Communications in Heat and Mass Transfer,2008,35: 446-457.
【4】Dan Nchelatebe Nkwetta, Mervyn Smyth, AggelosZachar-opoulos, et al. Optical evaluation and analysis of an intern-al low-concentrated evacuated tube heat pipe solar collect-or for powering solar air-conditioning systems[J]. Renew-able Energy,2012(39): 65-70.
【5】许雪松,朱跃钊.CPC型热管式真空管集热器的热性能研究[J].南京工业大学学报,2004,26(6): 53-56.
【6】C K Hsieh. Thermal analysis of CPC collectors[J]. Solar energy,1980,27(1): 19-29.
【7】N Fraidenraich, CF DE Lima. Simulation model of a CPC collector with temperature dependent heat loss coefficient[J]. Solar energy,1999,65(2): 99-110.
【8】石玲.CPC热管式真空集热管传热模型的分析[D].[硕士学位论文].浙江: 浙江大学,2007.
【9】赵玉兰.CPC热管式真空管太阳能集热器传热特性的研究[D].[硕士学位论文].南京: 南京工业大学, 2006.
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