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Second law optimization of a solar air heater having chamfered rib–groove roughness on absorber plate

Author

Listed:
  • Layek, Apurba
  • Saini, J.S.
  • Solanki, S.C.

Abstract

Artificially roughened solar air heaters perform better than the plane ones under the same operating conditions. However, artificial roughness leads to even more fluid pressure thereby increasing the pumping power. The entropy generation in the duct of solar air heater having repeated transverse chamfered rib–groove roughness on one broad wall is studied numerically. Roughness parameters, viz., relative roughness pitch P/e, relative roughness height e/Dh relative groove position g/P, chamfer angle φ and flow Reynolds number Re have a combined effect on the heat transfer as well as fluid friction. The entropy generation is minimized and reasonably optimized designs of roughness are found.

Suggested Citation

  • Layek, Apurba & Saini, J.S. & Solanki, S.C., 2007. "Second law optimization of a solar air heater having chamfered rib–groove roughness on absorber plate," Renewable Energy, Elsevier, vol. 32(12), pages 1967-1980.
    • Handle: RePEc:eee:renene:v:32:y:2007:i:12:p:1967-1980
    DOI: 10.1016/j.renene.2006.11.005
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    Citations

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    Cited by:

    1. Karwa, Rajendra & Chauhan, Kalpana, 2010. "Performance evaluation of solar air heaters having v-down discrete rib roughness on the absorber plate," Energy, Elsevier, vol. 35(1), pages 398-409.
    2. Bhushan, Brij & Singh, Ranjit, 2010. "A review on methodology of artificial roughness used in duct of solar air heaters," Energy, Elsevier, vol. 35(1), pages 202-212.
    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. Sahu, Mukesh Kumar & Prasad, Radha Krishna, 2016. "Exergy based performance evaluation of solar air heater with arc-shaped wire roughened absorber plate," Renewable Energy, Elsevier, vol. 96(PA), pages 233-243.
    6. Patil, Anil Kumar, 2015. "Heat transfer mechanism and energy efficiency of artificially roughened solar air heaters—A review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 42(C), pages 681-689.
    7. 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.
    8. Alam, Tabish & Saini, R.P. & Saini, J.S., 2014. "Use of turbulators for heat transfer augmentation in an air duct – A review," Renewable Energy, Elsevier, vol. 62(C), pages 689-715.
    9. Singh, Sukhmeet & Chander, Subhash & Saini, J.S., 2012. "Exergy based analysis of solar air heater having discrete V-down rib roughness on absorber plate," Energy, Elsevier, vol. 37(1), pages 749-758.
    10. Luna, D. & Nadeau, J.-P. & Jannot, Y., 2009. "Solar timber kilns: State of the art and foreseeable developments," Renewable and Sustainable Energy Reviews, Elsevier, vol. 13(6-7), pages 1446-1455, August.
    11. Chamoli, Sunil & Thakur, N.S. & Saini, J.S., 2012. "A review of turbulence promoters used in solar thermal systems," Renewable and Sustainable Energy Reviews, Elsevier, vol. 16(5), pages 3154-3175.
    12. Li, Qi & Flamant, Gilles & Yuan, Xigang & Neveu, Pierre & Luo, Lingai, 2011. "Compact heat exchangers: A review and future applications for a new generation of high temperature solar receivers," Renewable and Sustainable Energy Reviews, Elsevier, vol. 15(9), pages 4855-4875.
    13. Yadav, Anil Singh & Bhagoria, J.L., 2013. "Heat transfer and fluid flow analysis of solar air heater: A review of CFD approach," Renewable and Sustainable Energy Reviews, Elsevier, vol. 23(C), pages 60-79.
    14. 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).
    15. Gupta, M.K. & Kaushik, S.C., 2009. "Performance evaluation of solar air heater for various artificial roughness geometries based on energy, effective and exergy efficiencies," Renewable Energy, Elsevier, vol. 34(3), pages 465-476.
    16. Nidhul, Kottayat & Yadav, Ajay Kumar & Anish, S. & Kumar, Sachin, 2021. "Critical review of ribbed solar air heater and performance evaluation of various V-rib configuration," Renewable and Sustainable Energy Reviews, Elsevier, vol. 142(C).
    17. Nazri, Nurul Syakirah & Fudholi, Ahmad & Mustafa, Wan & Yen, Chan Hoy & Mohammad, Masita & Ruslan, Mohd Hafidz & Sopian, Kamaruzzaman, 2019. "Exergy and improvement potential of hybrid photovoltaic thermal/thermoelectric (PVT/TE) air collector," Renewable and Sustainable Energy Reviews, Elsevier, vol. 111(C), pages 132-144.
    18. Kumar, Vikash, 2021. "Experimental investigation of exergetic efficiency of 3 side concave dimple roughened absorbers," Energy, Elsevier, vol. 215(PB).
    19. Oztop, Hakan F. & Bayrak, Fatih & Hepbasli, Arif, 2013. "Energetic and exergetic aspects of solar air heating (solar collector) systems," Renewable and Sustainable Energy Reviews, Elsevier, vol. 21(C), pages 59-83.
    20. Kumar, Sharad & Saini, R.P., 2009. "CFD based performance analysis of a solar air heater duct provided with artificial roughness," Renewable Energy, Elsevier, vol. 34(5), pages 1285-1291.
    21. Hans, Vishavjeet Singh & Saini, R.P. & Saini, J.S., 2009. "Performance of artificially roughened solar air heaters--A review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 13(8), pages 1854-1869, October.
    22. Fudholi, Ahmad & Zohri, Muhammad & Rukman, Nurul Shahirah Binti & Nazri, Nurul Syakirah & Mustapha, Muslizainun & Yen, Chan Hoy & Mohammad, Masita & Sopian, Kamaruzzaman, 2019. "Exergy and sustainability index of photovoltaic thermal (PVT) air collector: A theoretical and experimental study," Renewable and Sustainable Energy Reviews, Elsevier, vol. 100(C), pages 44-51.
    23. Akpinar, Ebru Kavak & Koçyigit, Fatih, 2010. "Energy and exergy analysis of a new flat-plate solar air heater having different obstacles on absorber plates," Applied Energy, Elsevier, vol. 87(11), pages 3438-3450, November.
    24. 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.

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