کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1551070 998115 2012 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Experimental study and exergetic analysis of a CPC-type solar water heater system using higher-temperature circulation in winter
موضوعات مرتبط
مهندسی و علوم پایه مهندسی انرژی انرژی های تجدید پذیر، توسعه پایدار و محیط زیست
پیش نمایش صفحه اول مقاله
Experimental study and exergetic analysis of a CPC-type solar water heater system using higher-temperature circulation in winter
چکیده انگلیسی

The common solar water heater system can meet low temperature requirements, but exhibits very low efficiency in attaining higher water temperatures (55–95 °C). In the current paper, a compound parabolic concentrator (CPC)-type solar water heater system experiment rig with a U-pipe was set up, and its performance in meeting higher temperature requirements was investigated. The experiments were conducted in December at Hefei (31°53′ N, 117°15′ E), in the eastern region of China. The system showed steady performance in winter, with overall thermal efficiency always above 43%. The water in the tank was heated from 26.9 °C to 55, 65, 75, 85, and 95 °C. Through the experimental study and exergetic analysis of the solar water heater system, results of the five experiments showed thermal efficiency of above 49.0% (attaining 95 °C water temperature) and exergetic efficiency of above 4.62% (attaining 55 °C water temperature). Based on these results, the CPC-type solar water heater system with a U-pipe shows superior thermal performance in attaining higher temperatures and has potential applications in space heating, heat-powered cooling, seawater desalination, industrial heating, and so on.


► A higher-temperature CPC-type solar water heater system was designed and constructed.
► The overall thermal efficiency was above 49% (attaining 95 °C water temperature).
► The exergetic efficiency was above 4.62% (attaining 55 °C water temperature).

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Solar Energy - Volume 86, Issue 5, May 2012, Pages 1280–1286
نویسندگان
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