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A modified tubeless solar collector partially filled with porous substrate

Author

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  • Al-Nimr, M.A.
  • Alkam, M.K.

Abstract

In this work, the thermal performance of a conventional tubeless collector is improved by inserting porous substrates at the inner side of the collector absorber plate. The porous substrates improve the convective heat transfer coefficient between the absorber plate and the fluid. This improvement is investigated numerically and its effects on the efficiency and the useful gain of the collector are evaluated. It is found that inserting the porous substrate may raise the collector efficiency by 3–32% especially at high values of the overall heat loss coefficient.

Suggested Citation

  • Al-Nimr, M.A. & Alkam, M.K., 1998. "A modified tubeless solar collector partially filled with porous substrate," Renewable Energy, Elsevier, vol. 13(2), pages 165-173.
    • Handle: RePEc:eee:renene:v:13:y:1998:i:2:p:165-173
    DOI: 10.1016/S0960-1481(97)00047-5
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    Cited by:

    1. Reddy, K.S. & Ravi Kumar, K. & Ajay, C.S., 2015. "Experimental investigation of porous disc enhanced receiver for solar parabolic trough collector," Renewable Energy, Elsevier, vol. 77(C), pages 308-319.
    2. Silveira, Jose Luz & Tuna, Celso Eduardo & Lamas, Wendell de Queiroz, 2013. "The need of subsidy for the implementation of photovoltaic solar energy as supporting of decentralized electrical power generation in Brazil," Renewable and Sustainable Energy Reviews, Elsevier, vol. 20(C), pages 133-141.
    3. Rashidi, Saman & Esfahani, Javad Abolfazli & Rashidi, Abbas, 2017. "A review on the applications of porous materials in solar energy systems," Renewable and Sustainable Energy Reviews, Elsevier, vol. 73(C), pages 1198-1210.
    4. Ayompe, L.M. & Duffy, A. & Mc Keever, M. & Conlon, M. & McCormack, S.J., 2011. "Comparative field performance study of flat plate and heat pipe evacuated tube collectors (ETCs) for domestic water heating systems in a temperate climate," Energy, Elsevier, vol. 36(5), pages 3370-3378.
    5. Kalogirou, Soteris A., 2012. "A detailed thermal model of a parabolic trough collector receiver," Energy, Elsevier, vol. 48(1), pages 298-306.
    6. Anirudh, K. & Dhinakaran, S., 2020. "Numerical study on performance improvement of a flat-plate solar collector filled with porous foam," Renewable Energy, Elsevier, vol. 147(P1), pages 1704-1717.
    7. Jouybari, H. Javaniyan & Saedodin, S. & Zamzamian, A. & Nimvari, M. Eshagh & Wongwises, S., 2017. "Effects of porous material and nanoparticles on the thermal performance of a flat plate solar collector: An experimental study," Renewable Energy, Elsevier, vol. 114(PB), pages 1407-1418.
    8. Wang, P. & Liu, D.Y. & Xu, C., 2013. "Numerical study of heat transfer enhancement in the receiver tube of direct steam generation with parabolic trough by inserting metal foams," Applied Energy, Elsevier, vol. 102(C), pages 449-460.
    9. Ravi Kumar, K. & Reddy, K.S., 2009. "Thermal analysis of solar parabolic trough with porous disc receiver," Applied Energy, Elsevier, vol. 86(9), pages 1804-1812, September.
    10. Prakash, J. & Siva, E.P. & Tripathi, D. & Kuharat, S. & Bég, O. Anwar, 2019. "Peristaltic pumping of magnetic nanofluids with thermal radiation and temperature-dependent viscosity effects: Modelling a solar magneto-biomimetic nanopump," Renewable Energy, Elsevier, vol. 133(C), pages 1308-1326.
    11. Anirudh, K. & Dhinakaran, S., 2021. "Numerical analysis of the performance improvement of a flat-plate solar collector using conjugated porous blocks," Renewable Energy, Elsevier, vol. 172(C), pages 382-391.
    12. Jamal-Abad, Milad Tajik & Saedodin, Seyfollah & Aminy, Mohammad, 2017. "Experimental investigation on a solar parabolic trough collector for absorber tube filled with porous media," Renewable Energy, Elsevier, vol. 107(C), pages 156-163.

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