Efficiency of recycling double-pass V-corrugated solar air collectors

doi:10.3390/en10070875

淡江大學機構典藏 > 工學院 > 化學工程與材料工程學系暨研究所 > 期刊論文 > Item 987654321/112409

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题名:	Efficiency of recycling double-pass V-corrugated solar air collectors
作者:	Chii-Dong Ho;Ching-Fang Hsiao;Hsuan Chang;Yi-En Tien;Zih-Syuan Hong
关键词:	solar air heater;V-corrugated absorber;recycle effect;heat-transfer efficiency
日期:	2017-06-29
上传时间:	2017-12-13 02:11:24 (UTC+8)
摘要:	The influence of recycling on double-pass solar air collectors with welding of the V-corrugated absorber has been studied experimentally and theoretically. Welding the V-corrugated absorber and the recycle-effect concept to the solar air collector was proposed to strengthen the convective heat-transfer coefficient due to turbulence promotion. Both the recycle effect and the V-corrugated absorber can effectively enhance the heat transfer efficiency compared to various designs such as single-pass, flat-plate double-pass, and double-pass wire mesh packed devices. Recycling operations and welding the V-corrugated absorber could enhance the collector efficiency by increasing the recycle ratio, incident solar radiations, and air mass flow rates. The most efficient and economical operating conditions were found at R ≈ 0.5, with relatively small hydraulic dissipated energy compensation. It was found that the turbulence intensity increase from welding the V-corrugated absorber into the solar air collector channel could compensate for the power consumption increase, when considering economic feasibility.
關聯:	Energies 10(7), p.875-889
DOI:	10.3390/en10070875
显示于类别:	[化學工程與材料工程學系暨研究所] 期刊論文

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