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The effect of the number of tube rows on heat, mass and momentum transfer in flat-plate finned tube heat exchangers

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  • Halıcı, Fethi
  • Taymaz, İmdat
  • Gündüz, Mehmet

Abstract

The effect of the number of tube rows on heat, mass and momentum transfer is experimentally investigated for flat-plate, finned-tube heat exchangers which consist of aluminum fins and copper tubes. Four flat-plate finned-tube heat exchangers are identical except for changes in the number of tube rows (1 to 4). Heat-transfer coefficients for wet and dry surface conditions are obtained for both heating and cooling of moist air flowing over finned tubes. The air velocity was varied from 0.9 to 4 m/s. Heat transfer, Colburn and friction factors are determinated for different tube rows numbers while the Reynolds number were being warried. It is found that the values of Colburn and friction factors for wet surfaces are higher than for dry surfaces and for both conditions the Colburn and friction factors decrease with an increase in the tube row numbers.

Suggested Citation

  • Halıcı, Fethi & Taymaz, İmdat & Gündüz, Mehmet, 2001. "The effect of the number of tube rows on heat, mass and momentum transfer in flat-plate finned tube heat exchangers," Energy, Elsevier, vol. 26(11), pages 963-972.
    • Handle: RePEc:eee:energy:v:26:y:2001:i:11:p:963-972
    DOI: 10.1016/S0360-5442(01)00048-2
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    Cited by:

    1. Taler, Dawid & Taler, Jan & Trojan, Marcin, 2020. "Thermal calculations of plate–fin–and-tube heat exchangers with different heat transfer coefficients on each tube row," Energy, Elsevier, vol. 203(C).
    2. Tahseen, Tahseen Ahmad & Ishak, M. & Rahman, M.M., 2015. "An overview on thermal and fluid flow characteristics in a plain plate finned and un-finned tube banks heat exchanger," Renewable and Sustainable Energy Reviews, Elsevier, vol. 43(C), pages 363-380.
    3. Dawid Taler & Jan Taler & Marcin Trojan, 2020. "Experimental Verification of an Analytical Mathematical Model of a Round or Oval Tube Two-Row Car Radiator," Energies, MDPI, vol. 13(13), pages 1-23, July.
    4. Zhang, Pan & Ma, Ting & Li, Wei-Dong & Ma, Guang-Yu & Wang, Qiu-Wang, 2018. "Design and optimization of a novel high temperature heat exchanger for waste heat cascade recovery from exhaust flue gases," Energy, Elsevier, vol. 160(C), pages 3-18.
    5. Monteiro, Deiglys Borges & de Mello, Paulo Eduardo Batista, 2012. "Thermal performance and pressure drop in a ceramic heat exchanger evaluated using CFD simulations," Energy, Elsevier, vol. 45(1), pages 489-496.
    6. Kundu, Balaram & Barman, Debasis, 2011. "An analytical prediction for performance and optimization of an annular fin assembly of trapezoidal profile under dehumidifying conditions," Energy, Elsevier, vol. 36(5), pages 2572-2588.

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