 Experimental and analytical optical-thermal performance of evacuated cylindrical tube receiver for solar dish collectorYu Yuan, Gang Wu, Qichang Yang, Ruifeng Cheng, Yuxin Tong, Yi Zhang, Hui Fang and Qianlei Ma Energy, 2021, vol. 234, issue C Abstract: 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 multiphysics simulation with the result of 0–50 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. Keywords: Solar dish collector; Evacuated cylindrical tube receiver; Optical-thermal efficiency; Economic analysis (search for similar items in EconPapers) Downloads: (external link) Related works: Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:234:y:2021:i:c:s0360544221015498 DOI: 10.1016/j.energy.2021.121301 Access Statistics for this article Energy is currently edited by Henrik Lund and Mark J. Kaiser More articles in Energy from Elsevier |
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