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Forced-convective internal cooling of a horizontal equilateral-triangle cross-sectioned duct

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  • Leung, C. W.
  • Probert, S. D.

Abstract

An experimental determination of the steady-state forced convection from the internal surfaces of a horizontal, uniformly heated electrically, equilateral-triangle cross-sectioned duct with sharp corners has been undertaken. The average Nusselt number D, using the hydraulic diameter as the characteristic physical dimension, is a constant if the flow in the duct is laminar, but a function of the air's Reynolds number, when the flow is turbulent. Non-dimensional correlations, which can be used for predicting the value of the steady-state rate of convective heat transfer from such a triangular duct into the airflow, have been deduced, viz. D = 3·25 for laminar flows, i.e. ReD = 1450.

Suggested Citation

  • Leung, C. W. & Probert, S. D., 1995. "Forced-convective internal cooling of a horizontal equilateral-triangle cross-sectioned duct," Applied Energy, Elsevier, vol. 50(4), pages 313-321.
    • Handle: RePEc:eee:appene:v:50:y:1995:i:4:p:313-321
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    Cited by:

    1. Leung, C. W. & Probert, S. D., 1997. "Forced-convective turbulent-flows through horizontal ducts with isosceles-triangular internal cross-sections," Applied Energy, Elsevier, vol. 57(1), pages 13-24, May.
    2. Kumar, Rajneesh & Varun, & Kumar, Anoop, 2016. "Thermal and fluid dynamic characteristics of flow through triangular cross-sectional duct: A review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 61(C), pages 123-140.

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