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The influence of collector aspect ratio on the collector efficiency of baffled solar air heaters

Author

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  • Yeh, Ho-Ming
  • Ho, Chii-Dong
  • Lin, Chi-Yen

Abstract

The effect of collector aspect ratio on the collector efficiency of baffled solar air heaters has been investigated theoretically. With constant collector area, the collector efficiency increases when the collector aspect ratio increases. This is the same results as those obtained in the previous work for flat-plate solar air heaters without fins and baffles. Although the collector efficiency of baffled solar air heaters is larger than that of flat-plate heaters without fins and baffles, the improvement of collector efficiency by increasing the collector aspect ratio is reverse.

Suggested Citation

  • Yeh, Ho-Ming & Ho, Chii-Dong & Lin, Chi-Yen, 1998. "The influence of collector aspect ratio on the collector efficiency of baffled solar air heaters," Energy, Elsevier, vol. 23(1), pages 11-16.
  • Handle: RePEc:eee:energy:v:23:y:1998:i:1:p:11-16
    DOI: 10.1016/S0360-5442(97)00054-6
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    Cited by:

    1. Youcef-Ali, S. & Desmons, J.Y., 2006. "Numerical and experimental study of a solar equipped with offset rectangular plate fin absorber plate," Renewable Energy, Elsevier, vol. 31(13), pages 2063-2075.
    2. Gawande, Vipin B. & Dhoble, A.S. & Zodpe, D.B., 2014. "Effect of roughness geometries on heat transfer enhancement in solar thermal systems – A review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 32(C), pages 347-378.
    3. Chamoli, Sunil & Thakur, N.S. & Saini, J.S., 2012. "A review of turbulence promoters used in solar thermal systems," Renewable and Sustainable Energy Reviews, Elsevier, vol. 16(5), pages 3154-3175.
    4. Singh, Satyender & Dhiman, Prashant, 2014. "Thermal and thermohydraulic performance evaluation of a novel type double pass packed bed solar air heater under external recycle using an analytical and RSM (response surface methodology) combined ap," Energy, Elsevier, vol. 72(C), pages 344-359.

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