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Performance of solar air heater ducts with different types of ribs on the absorber plate


  • Tanda, Giovanni


Repeated ribs are considered an effective technique to enhance forced convection heat transfer in channels. In order to establish the performance of rib-roughened channels, both heat transfer and friction characteristics have to be accounted for. In the present paper, heat transfer coefficients and friction factors have been experimentally investigated for a rectangular channel having one wall roughened by repeated ribs and heated at uniform flux, while the remaining three walls were smooth and insulated. Angled continuous ribs, transverse continuous and broken ribs, and discrete V-shaped ribs were considered as rib configurations. Different performance evaluation criteria, based on energy balance or entropy generation analysis, were proposed to assess the relative merit of each rib configuration. All the rib-roughened channels performed better than the reference smooth channel in the medium-low range of the investigated Reynolds number values, which is that typically encountered in solar air heater applications.

Suggested Citation

  • Tanda, Giovanni, 2011. "Performance of solar air heater ducts with different types of ribs on the absorber plate," Energy, Elsevier, vol. 36(11), pages 6651-6660.
  • Handle: RePEc:eee:energy:v:36:y:2011:i:11:p:6651-6660
    DOI: 10.1016/

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    References listed on IDEAS

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    Cited by:

    1. Yang, Ming & Yang, Xudong & Li, Xing & Wang, Zhifeng & Wang, Pengsu, 2014. "Design and optimization of a solar air heater with offset strip fin absorber plate," Applied Energy, Elsevier, vol. 113(C), pages 1349-1362.
    2. Varun Kumar B. & G. Manikandan & P. Rajesh Kanna & Dawid Taler & Jan Taler & Marzena Nowak-Ocłoń & Karol Mzyk & Hoong Thiam Toh, 2018. "A Performance Evaluation of a Solar Air Heater Using Different Shaped Ribs Mounted on the Absorber Plate—A Review," Energies, MDPI, Open Access Journal, vol. 11(11), pages 1-20, November.
    3. Chauhan, Ranchan & Thakur, N.S., 2014. "Investigation of the thermohydraulic performance of impinging jet solar air heater," Energy, Elsevier, vol. 68(C), pages 255-261.
    4. Singh, Simarpreet, 2017. "Performance evaluation of a novel solar air heater with arched absorber plate," Renewable Energy, Elsevier, vol. 114(PB), pages 879-886.
    5. Mohammadi, K. & Sabzpooshani, M., 2013. "Comprehensive performance evaluation and parametric studies of single pass solar air heater with fins and baffles attached over the absorber plate," Energy, Elsevier, vol. 57(C), pages 741-750.
    6. Shams, S.M.N. & Mc Keever, M. & Mc Cormack, S. & Norton, B., 2016. "Design and experiment of a new solar air heating collector," Energy, Elsevier, vol. 100(C), pages 374-383.
    7. Nidhul, Kottayat & Kumar, Sachin & Yadav, Ajay Kumar & Anish, S., 2020. "Enhanced thermo-hydraulic performance in a V-ribbed triangular duct solar air heater: CFD and exergy analysis," Energy, Elsevier, vol. 200(C).
    8. Mahian, Omid & Mahmud, Shohel & Heris, Saeed Zeinali, 2012. "Analysis of entropy generation between co-rotating cylinders using nanofluids," Energy, Elsevier, vol. 44(1), pages 438-446.
    9. Singh, Amritpal & Singh, Sukhmeet, 2017. "CFD investigation on roughness pitch variation in non-uniform cross-section transverse rib roughness on Nusselt number and friction factor characteristics of solar air heater duct," Energy, Elsevier, vol. 128(C), pages 109-127.
    10. Kumar, Rajneesh & Kumar, Anoop & Goel, Varun, 2019. "Performance improvement and development of correlation for friction factor and heat transfer using computational fluid dynamics for ribbed triangular duct solar air heater," Renewable Energy, Elsevier, vol. 131(C), pages 788-799.
    11. Yu-Jin Kim & Kwang-Seob Lee & Libing Yang & Evgueniy Entchev & Eun-Chul Kang & Euy-Joon Lee, 2020. "Validation and Numerical Sensitivity Study of Air Baffle Photovoltaic-Thermal Module," Energies, MDPI, Open Access Journal, vol. 13(8), pages 1-13, April.
    12. Hamid, Mohammed O.A. & Zhang, Bo, 2015. "Field synergy analysis for turbulent heat transfer on ribs roughened solar air heater," Renewable Energy, Elsevier, vol. 83(C), pages 1007-1019.
    13. 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.
    14. 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.
    15. 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.
    16. Yadav, Anil Singh & Bhagoria, J.L., 2013. "A CFD (computational fluid dynamics) based heat transfer and fluid flow analysis of a solar air heater provided with circular transverse wire rib roughness on the absorber plate," Energy, Elsevier, vol. 55(C), pages 1127-1142.
    17. Evangelisti, Luca & De Lieto Vollaro, Roberto & Asdrubali, Francesco, 2019. "Latest advances on solar thermal collectors: A comprehensive review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 114(C), pages 1-1.
    18. 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.


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