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Heat-exchanger performance: Influence of gap width between consecutive vertical rectangular fin-arrays

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  • Leung, C. W.
  • Probert, S. D.

Abstract

Two identical rectangular heat-exchanger fin-arrays, with their bases in the same vertical plane, arranged in series one above the other, were used instead of a single array of double the original length fins to dissipate heat from a vertical rectangular base, which was kept at 40°C above the ambient environment. The effect of the magnitude of the gap width between the two consecutive arrays, upon the steady-state rate of heat transfer from the heated base of the exchanger under natural-convection conditions, was investigated experimentally. When a gap width of 18 ± 2 mm is used, a saving in fin material ensues together with a slight (~ 3%) increase in the rate of heat dissipation, being achieved.

Suggested Citation

  • Leung, C. W. & Probert, S. D., 1997. "Heat-exchanger performance: Influence of gap width between consecutive vertical rectangular fin-arrays," Applied Energy, Elsevier, vol. 56(1), pages 1-8, January.
    • Handle: RePEc:eee:appene:v:56:y:1997:i:1:p:1-8
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    References listed on IDEAS

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    1. Leung, C.W. & Probert, S.D. & Shilston, M.J., 1985. "Heat exchanger design: Optimal uniform separation between rectangular fins protruding from a vertical rectangular base," Applied Energy, Elsevier, vol. 19(4), pages 287-299.
    2. Leung, C.W. & Probert, S.D. & Shilston, M.J., 1985. "Heat exchanger: Optimal separation for vertical rectangular fins protruding from a vertical rectangular base," Applied Energy, Elsevier, vol. 19(2), pages 77-85.
    3. Leung, C.W. & Probert, S.D., 1989. "Heat-exchanger performance: Effect of orientation," Applied Energy, Elsevier, vol. 33(4), pages 235-252.
    4. Ko, Y. M. & Leung, C. W. & Probert, S. D., 1989. "Steady-state free-convective cooling of heat exchangers with vertical rectangular fins: Effect of fin material," Applied Energy, Elsevier, vol. 34(3), pages 181-191.
    5. Ho, S. F. & Leung, C. W. & Probert, S. D., 1991. "Performances of heat exchangers with tapered fins," Applied Energy, Elsevier, vol. 38(2), pages 95-103.
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    Cited by:

    1. Jang, Daeseok & Yook, Se-Jin & Lee, Kwan-Soo, 2014. "Optimum design of a radial heat sink with a fin-height profile for high-power LED lighting applications," Applied Energy, Elsevier, vol. 116(C), pages 260-268.

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