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简化CPC式全真空玻璃集热管太阳能高温空气集热器的传热模型研究
引用本文:陆琳,陈秀娟,何志兵,刘振华. 简化CPC式全真空玻璃集热管太阳能高温空气集热器的传热模型研究[J]. 热科学与技术, 2012, 11(2): 118-124
作者姓名:陆琳  陈秀娟  何志兵  刘振华
作者单位:1. 上海交通大学机械与动力工程学院,上海200240;景德镇陶瓷学院材料科学与工程学院,江西景德镇333001
2. 上海交通大学机械与动力工程学院,上海,200240
摘    要:对一种新型简化CPC(非追踪式复合抛物线聚光板)式全真空玻璃集热管太阳能高温空气集热系统的传热过程进行了理论分析和数值模拟计算,通过实验数据对该传热模型进行了验证分析。该系统由多个集热单元组成,每个集热单元包括一个简化CPC集热板,一根全真空玻璃集热管,在玻璃集热管内安装一个U形铜管。流动空气在各级U形铜管内被逐级加热。计算研究表明:系统空气最大出口温度可达到200℃,系统平均集热效率达到0.3以上,整个系统表现了良好的高温集热特性。同时,计算也表明当系统工质流量增加时,只要系统增加更多的集热管以增加系统总功率即可满足工质温度达到200℃的设计要求。研究提出的新型简化CPC式全真空玻璃集热管太阳能高温空气集热系统是一种有工业实用前途的太阳能集热器;研究提出的传热模型模拟效果也可以满足一般性工程计算需求。

关 键 词:太阳能  高温集热器  数值模拟  传热模型

Performance analysis of new all-glass evacuated tubular solar high temperature air collector with simplified CPC
LU Lin , CHEN Xiu-juan , HE Zhi-bing , LIU Zhen-hua. Performance analysis of new all-glass evacuated tubular solar high temperature air collector with simplified CPC[J]. Journal of Thermal Science and Technology, 2012, 11(2): 118-124
Authors:LU Lin    CHEN Xiu-juan    HE Zhi-bing    LIU Zhen-hua
Affiliation:1 1.School of Mechanical Engineering,Shanghai Jiao Tong University,Shanghai 200240,China; 2.School of Material Science and Engineering,Jingdezhen Ceramic Institute,Jingdezhen 333001,China
Abstract:Theoretical analysis and numerical simulation were carried out on a new all-glass evacuated tubular solar high temperature air collector with simplified CPC(Compound Parabolic Concentrator).The system consists of multiple collecting units.Each unit includes a simplified CPC heating panel and an all-glass evacuated tube.A U-shaped copper tube is installed in the glass tube.Air is progressively heated in each U-shaped copper tube.Computational and experimental studies show that the maximum air outlet temperature can be as high as 200 ℃ and the average collector efficiency of the system is more than 0.3 at the outlet temperature of 200 ℃.The whole system has a good high-temperature heat characteristic.The present heat transfer model can meet the general requirements of engineering calculations.
Keywords:solar energy  high temperature collector  numerical simulation  heat transfer model
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