Recycle Effect on Device Performance of Wire Mesh Packed Double-Pass Solar Air Heaters

Chii-Dong Ho, Chun-Sheng Lin, Tz-Jin Yang and Chun-Chieh Chao
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Chii-Dong Ho: Department of Chemical and Materials Engineering, Tamkang University, 151 Yingzhuan Road, Tamsui District, New Taipei 251, Taiwan
Chun-Sheng Lin: Department of Chemical and Materials Engineering, Tamkang University, 151 Yingzhuan Road, Tamsui District, New Taipei 251, Taiwan
Tz-Jin Yang: Department of Chemical and Materials Engineering, Tamkang University, 151 Yingzhuan Road, Tamsui District, New Taipei 251, Taiwan
Chun-Chieh Chao: Department of Chemical and Materials Engineering, Tamkang University, 151 Yingzhuan Road, Tamsui District, New Taipei 251, Taiwan

Energies, 2014, vol. 7, issue 11, 1-18

Abstract: A new device for inserting an absorber plate to divide a flat-plate channel into two subchannels to conduct double-pass wire mesh packed operations was developed. The proposed wire mesh packed device improves the heat transfer efficiency substantially as compared that to flat-plate single-pass and double-pass operations using the same working dimensions, and the improvement of device performance was investigated experimentally and theoretically. Good agreement between the theoretical prediction and the measured values from the experimental results was achieved. Considerable heat transfer improvement was obtained employing wire mesh packed double-pass operations under the absorber plate with external recycle. The influences of recycle ratio on the heat transfer efficiency and the power consumption increase were also discussed.

Keywords: wire mesh; recycle; heat transfer efficiency; double-pass; solar air heater (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2014
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