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Performance study of solar air heater having v-down discrete ribs on absorber plate

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  • Karwa, Rajendra
  • Chitoshiya, Girish

Abstract

The paper presents results of an experimental study of thermo-hydraulic performance of a solar air heater with 60° v-down discrete rib roughness on the airflow side of the absorber plate along with that for a smooth duct air heater. The enhancement in the thermal efficiency due to the roughness on the absorber plate is found to be 12.5–20% depending on the airflow rate; higher enhancement is at the lower flow rate. The experimental data have been generated and utilized to validate a mathematical model, which can be utilized for design and prediction of performance of both smooth and roughened air heaters under different operating conditions. The results of a detailed thermo-hydraulic performance study of solar air heater with v-down discrete rib roughness using the mathematical model are also presented along with the effect of variation of various parameters on the performance.

Suggested Citation

  • Karwa, Rajendra & Chitoshiya, Girish, 2013. "Performance study of solar air heater having v-down discrete ribs on absorber plate," Energy, Elsevier, vol. 55(C), pages 939-955.
    • Handle: RePEc:eee:energy:v:55:y:2013:i:c:p:939-955
    DOI: 10.1016/j.energy.2013.03.068
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    References listed on IDEAS

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    1. Singh, Sukhmeet & Chander, Subhash & Saini, J.S., 2012. "Investigations on thermo-hydraulic performance due to flow-attack-angle in V-down rib with gap in a rectangular duct of solar air heater," Applied Energy, Elsevier, vol. 97(C), pages 907-912.
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    8. Karwa, Rajendra & Solanki, S.C & Saini, J.S, 2001. "Thermo-hydraulic performance of solar air heaters having integral chamfered rib roughness on absorber plates," Energy, Elsevier, vol. 26(2), pages 161-176.
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    Cited by:

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    3. Qader, Bootan S. & Supeni, E.E. & Ariffin, M.K.A. & Talib, A.R. Abu, 2019. "Numerical investigation of flow through inclined fins under the absorber plate of solar air heater," Renewable Energy, Elsevier, vol. 141(C), pages 468-481.
    4. Kumar, Anil & Kumar, Raj & Maithani, Rajesh & Chauhan, Ranchan & Sethi, Muneesh & Kumari, Anita & Kumar, Sushil & Kumar, Sunil, 2017. "Correlation development for Nusselt number and friction factor of a multiple type V-pattern dimpled obstacles solar air passage," Renewable Energy, Elsevier, vol. 109(C), pages 461-479.
    5. Wang, Teng-yue & Zhao, Yao-hua & Diao, Yan-hua & Ren, Ru-yang & Wang, Ze-yu, 2019. "Performance of a new type of solar air collector with transparent-vacuum glass tube based on micro-heat pipe arrays," Energy, Elsevier, vol. 177(C), pages 16-28.
    6. Priyam, Abhishek & Chand, Prabha, 2018. "Effect of wavelength and amplitude on the performance of wavy finned absorber solar air heater," Renewable Energy, Elsevier, vol. 119(C), pages 690-702.
    7. Saxena, Abhishek & Varun, & El-Sebaii, A.A., 2015. "A thermodynamic review of solar air heaters," Renewable and Sustainable Energy Reviews, Elsevier, vol. 43(C), pages 863-890.
    8. Singh Yadav, Anil & Kumar Thapak, Manish, 2014. "Artificially roughened solar air heater: Experimental investigations," Renewable and Sustainable Energy Reviews, Elsevier, vol. 36(C), pages 370-411.
    9. Sharma, Sanjay K. & Kalamkar, Vilas R., 2015. "Thermo-hydraulic performance analysis of solar air heaters having artificial roughness–A review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 41(C), pages 413-435.
    10. 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.
    11. Kumar, Vikash & Murmu, Ramesh, 2021. "Experimental investigation for thermal performance of inclined spherical ball roughened solar air duct," Renewable Energy, Elsevier, vol. 172(C), pages 1365-1392.
    12. 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.
    13. Rajaseenivasan, T. & Srinivasan, S. & Srithar, K., 2015. "Comprehensive study on solar air heater with circular and V-type turbulators attached on absorber plate," Energy, Elsevier, vol. 88(C), pages 863-873.
    14. Kareem, M.W. & Habib, Khairul & Pasha, Amjad A. & Irshad, Kashif & Afolabi, L.O. & Saha, Bidyut Baran, 2022. "Experimental study of multi-pass solar air thermal collector system assisted with sensible energy-storing matrix," Energy, Elsevier, vol. 245(C).

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