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Performance improvement of a double-pass solar air heater with fins and baffles under recycling operation

Author

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  • Ho, Chii-Dong
  • Chang, Hsuan
  • Wang, Rei-Chi
  • Lin, Chun-Sheng

Abstract

The performance of a solar air heater featured with double-pass as well as fins and baffles design was investigated for the effect of recycling operation via both experimental and theoretical approaches. The experimental results deviate by 1.5–23% from the theoretical predictions. The performance of solar air heaters with different designs are compared, including the single-pass, double-pass with recycle, fined double-pass with recycle, and fined plus baffled double-pass with recycle. The double-pass device introduced in this study was proposed for aiming to strengthen the convective heat transfer coefficient and enlarge the heat transfer area. Based on both theoretical and experimental results, the collector efficiency of the fined plus baffled double-pass with recycle design is much higher than the other designs under different reflux ratios and mass flow rates. The optimal reflux ratio for the fined plus baffled double-pass design is about 0.5 while considering both the collector efficiency and the pumping power requirement. An economic consideration in terms of the heat transfer efficiency and power consumption increment for double-pass operation is delineated.

Suggested Citation

  • 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.
    • Handle: RePEc:eee:appene:v:100:y:2012:i:c:p:155-163
    DOI: 10.1016/j.apenergy.2012.03.065
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    References listed on IDEAS

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    1. Hassan, Hamdy & Abo-Elfadl, Saleh, 2018. "Experimental study on the performance of double pass and two inlet ports solar air heater (SAH) at different configurations of the absorber plate," Renewable Energy, Elsevier, vol. 116(PA), pages 728-740.
    2. Kabeel, A.E. & Hamed, Mofreh H. & Omara, Z.M. & Kandeal, A.W., 2017. "Solar air heaters: Design configurations, improvement methods and applications – A detailed review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 70(C), pages 1189-1206.
    3. Fudholi, Ahmad & Sopian, Kamaruzzaman, 2019. "A review of solar air flat plate collector for drying application," Renewable and Sustainable Energy Reviews, Elsevier, vol. 102(C), pages 333-345.
    4. 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.
    5. Khanlari, Ataollah & Tuncer, Azim Doğuş, 2023. "Analysis of an infrared-assisted triple-flow prototype solar drying system with nano-embedded absorber coating: An experimental and numerical study," Renewable Energy, Elsevier, vol. 216(C).
    6. Chii-Dong Ho & Hsuan Chang & Ching-Fang Hsiao & Chien-Chang Huang, 2018. "Device Performance Improvement of Recycling Double-Pass Cross-Corrugated Solar Air Collectors," Energies, MDPI, vol. 11(2), pages 1-18, February.
    7. Das, Biplab & Mondol, Jayanta Deb & Debnath, Suman & Pugsley, Adrian & Smyth, Mervyn & Zacharopoulos, A., 2020. "Effect of the absorber surface roughness on the performance of a solar air collector: An experimental investigation," Renewable Energy, Elsevier, vol. 152(C), pages 567-578.
    8. Hassan, Hamdy & Abo-Elfadl, Saleh & El-Dosoky, M.F., 2020. "An experimental investigation of the performance of new design of solar air heater (tubular)," Renewable Energy, Elsevier, vol. 151(C), pages 1055-1066.
    9. Hu, Jianjun & Liu, Kaitong & Guo, Meng & Zhang, Guangqiu & Chu, Zhongliang & Wang, Meida, 2019. "Performance improvement of baffle-type solar air collector based on first chamber narrowing," Renewable Energy, Elsevier, vol. 135(C), pages 701-710.
    10. Debnath, Suman & Das, Biplab & Randive, P.R. & Pandey, K.M., 2018. "Performance analysis of solar air collector in the climatic condition of North Eastern India," Energy, Elsevier, vol. 165(PB), pages 281-298.
    11. 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.
    12. 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.
    13. 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.

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