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Improvement in device performance of multi-pass flat-plate solar air heaters with external recycle

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  • Ho, C.D.
  • Yeh, C.W.
  • Hsieh, S.M.

Abstract

A study on improvement in device performance of multi-pass solar air heaters with external recycle has been carried out under countercurrent-flow operations. An absorbing plate and insulation sheet were inserted horizontally and vertically, respectively, into a parallel-plate channel to divide the open duct into four subchannels. The coupled nonlinear ordinary differential equations were derived and solved numerically. The theoretical results show that the new device of four-pass flat-plate solar air heater with external recycle can enhance the heat transfer rate compared with that in an open conduit (without the vertical insulation sheet inserted and the absorbing plate glued on the bottom insulation plate, the so-called a downward-type single-pass solar air heater) under the same flow rate and working dimensions. The effects of inserting the absorbing plate and insulation sheet on the transfer efficiency enhancement as well as on the hydraulic dissipated power increment have been also discussed.

Suggested Citation

  • Ho, C.D. & Yeh, C.W. & Hsieh, S.M., 2005. "Improvement in device performance of multi-pass flat-plate solar air heaters with external recycle," Renewable Energy, Elsevier, vol. 30(10), pages 1601-1621.
    • Handle: RePEc:eee:renene:v:30:y:2005:i:10:p:1601-1621
    DOI: 10.1016/j.renene.2004.11.009
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    Cited by:

    1. Poongavanam, Ganesh Kumar & Panchabikesan, Karthik & Leo, Anto Joseph Deeyoko & Ramalingam, Velraj, 2018. "Experimental investigation on heat transfer augmentation of solar air heater using shot blasted V-corrugated absorber plate," Renewable Energy, Elsevier, vol. 127(C), pages 213-229.
    2. Singh, Satyender & Chaurasiya, Shailendra Kumar & Negi, Bharat Singh & Chander, Subhash & Nemś, Magdalena & Negi, Sushant, 2020. "Utilizing circular jet impingement to enhance thermal performance of solar air heater," Renewable Energy, Elsevier, vol. 154(C), pages 1327-1345.
    3. Kareem, M.W. & Habib, Khairul & Ruslan, M.H. & Saha, Bidyut Baran, 2017. "Thermal performance study of a multi-pass solar air heating collector system for drying of Roselle (Hibiscus sabdariffa)," Renewable Energy, Elsevier, vol. 113(C), pages 281-292.
    4. Ganesh Kumar, P. & Balaji, K. & Sakthivadivel, D. & Vigneswaran, V.S. & Velraj, R. & Kim, Sung Chul, 2021. "Enhancement of heat transfer in a combined solar air heating and water heater system," Energy, Elsevier, vol. 221(C).
    5. Ramadan, M.R.I. & El-Sebaii, A.A. & Aboul-Enein, S. & El-Bialy, E., 2007. "Thermal performance of a packed bed double-pass solar air heater," Energy, Elsevier, vol. 32(8), pages 1524-1535.
    6. Sabzpooshani, M. & Mohammadi, K. & Khorasanizadeh, H., 2014. "Exergetic performance evaluation of a single pass baffled solar air heater," Energy, Elsevier, vol. 64(C), pages 697-706.
    7. Chii-Dong Ho & Hsuan Chang & Chun-Sheng Lin & Chun-Chieh Chao & Yi-En Tien, 2016. "Device Performance Improvement of Double-Pass Wire Mesh Packed Solar Air Heaters under Recycling Operation Conditions," Energies, MDPI, vol. 9(2), pages 1-10, January.
    8. Ho, C.D. & Yeh, H.M. & Cheng, T.W. & Chen, T.C. & Wang, R.C., 2009. "The influences of recycle on performance of baffled double-pass flat-plate solar air heaters with internal fins attached," Applied Energy, Elsevier, vol. 86(9), pages 1470-1478, September.
    9. Chii Dong Ho & Hsuan Chang & Rei Chi Wang & Chun Sheng Lin, 2013. "Analytical and Experimental Study of Recycling Baffled Double-Pass Solar Air Heaters with Attached Fins," Energies, MDPI, vol. 6(4), pages 1-22, March.
    10. Tchinda, Réné, 2009. "A review of the mathematical models for predicting solar air heaters systems," Renewable and Sustainable Energy Reviews, Elsevier, vol. 13(8), pages 1734-1759, October.
    11. 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.
    12. Ho, C.D. & Chen, T.C., 2008. "Collector efficiency improvement of recyclic double-pass sheet-and-tube solar water heaters with internal fins attached," Renewable Energy, Elsevier, vol. 33(4), pages 655-664.
    13. Zheng, Wandong & Li, Bojia & Zhang, Huan & You, Shijun & Li, Ying & Ye, Tianzhen, 2016. "Thermal characteristics of a glazed transpired solar collector with perforating corrugated plate in cold regions," Energy, Elsevier, vol. 109(C), pages 781-790.
    14. Singh, Satyender & Dhiman, Prashant, 2016. "Thermal performance of double pass packed bed solar air heaters – A comprehensive review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 53(C), pages 1010-1031.
    15. Ho, Chii-Dong & Chang, Hsuan & Wang, Rei-Chi & Lin, Chun-Sheng, 2012. "Performance improvement of a double-pass solar air heater with fins and baffles under recycling operation," Applied Energy, Elsevier, vol. 100(C), pages 155-163.

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