Experimental and analytical optical-thermal performance of evacuated cylindrical tube receiver for solar dish collector

文献类型： 外文期刊

第一作者： Yuan, Yu

作者： Yuan, Yu;Wu, Gang;Cheng, Ruifeng;Tong, Yuxin;Zhang, Yi;Fang, Hui;Yuan, Yu;Wu, Gang;Yang, Qichang;Cheng, Ruifeng;Tong, Yuxin;Zhang, Yi;Fang, Hui;Ma, Qianlei;Yang, Qichang;Ma, Qianlei

作者机构：

关键词： Solar dish collector; Evacuated cylindrical tube receiver; Optical-thermal efficiency; Economic analysis

期刊名称：ENERGY （ 影响因子：7.147； 五年影响因子：6.845 ）

ISSN： 0360-5442

年卷期： 2021 年 234 卷

页码：

收录情况： SCI

摘要： Evacuated cylindrical tube receiver (ECT) is a promising type of solar collector system, due to its mass production, low cost, and low heat loss. In this paper, a solar dish collector system with evacuated cylindrical tube receivers (SDEC) is proposed, designed and trial-manufactured. The optical-thermal efficiency and economic analysis are carried out to validate the comprehensive performance of the SDEC. The results show that the thermal efficiency of the SDEC is about 47.3%. The nonuniformity of the solar flux and temperature distributions at the top of the absorber are verified through the coupled multi physics simulation with the result of 0e50 mm. In addition, over 10 years of the lifetime of the SDEC with 20 ECTs, the cumulative present worth of annual saving for heat production turned out to be approximately 34,041 $ and 13,460 $ with respect to electricity coiler and gas-fired boiler, respectively, when the cost of heat production per kWh is 0.0264 $ and the payback period is 1.88 years. (c) 2021 Elsevier Ltd. All rights reserved.

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