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Efficiency improvement of flat-plate solar air heaters

Author

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  • Yeh, Ho-ming
  • Lin, Tong-Tshien

Abstract

The effect of parallel barriers on the collector efficiency of flat-plate solar air heaters has been investigated theoretically and experimentally. The barriers were placed with uniform spacing and in parallel, thereby dividing the air channel (collector) into parallel subchannels (subcollectors) of the same size. These subcollectors were connected in series so that air flowed through them in sequentially reversed directions. Experimental studies were performed for different locations of the barriers. The theoretical predictions agree reasonably well with experimental results. The optimal barrier location for maximum collector efficiency is the center line of the collector. The collector efficiency increases theoretically as the number of barriers increases.

Suggested Citation

  • Yeh, Ho-ming & Lin, Tong-Tshien, 1996. "Efficiency improvement of flat-plate solar air heaters," Energy, Elsevier, vol. 21(6), pages 435-443.
    • Handle: RePEc:eee:energy:v:21:y:1996:i:6:p:435-443
    DOI: 10.1016/0360-5442(96)00008-4
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    Cited by:

    1. Mohanty, Sthitapragyan & Patra, Prashanta Kumar & Sahoo, Sudhansu Sekhar, 2016. "Prediction and application of solar radiation with soft computing over traditional and conventional approach – A comprehensive review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 56(C), pages 778-796.
    2. Jia, Hao & Cheng, Xiaomei & Zhu, Jingjing & Li, Zhaoling & Guo, Jiansheng, 2018. "Mathematical and experimental analysis on solar thermal energy harvesting performance of the textile-based solar thermal energy collector," Renewable Energy, Elsevier, vol. 129(PA), pages 553-560.
    3. Gupta, M.K. & Kaushik, S.C., 2008. "Exergetic performance evaluation and parametric studies of solar air heater," Energy, Elsevier, vol. 33(11), pages 1691-1702.
    4. Yu Wang & Mikael Boulic & Robyn Phipps & Manfred Plagmann & Chris Cunningham, 2020. "Experimental Performance of a Solar Air Collector with a Perforated Back Plate in New Zealand," Energies, MDPI, vol. 13(6), pages 1-16, March.
    5. Karim, Md Azharul & Hawlader, M.N.A, 2006. "Performance investigation of flat plate, v-corrugated and finned air collectors," Energy, Elsevier, vol. 31(4), pages 452-470.

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