Thermal performance study of two-pass solar air heaters

作者: N.E. Wijeysundera , Lee Lee Ah , Lim Ek Tjioe

DOI: 10.1016/0038-092X(82)90253-5

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摘要: Abstract The operation of a conventional solar air heater with two covers in two-pass mode offers an inexpensive method improving the collector efficiency by about 10–15 per cent. Heat transfer models are developed for such flow arrangements and compared performance single pass design. computer validated comparing experimental data from series testing experiments. is examined over wide range design operating conditions designs found to perform better than system. For closed-loop systems recirculation have some limitations performance. Design curves variables presented.

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