IDEAS home Printed from https://ideas.repec.org/a/eee/appene/v62y1999i2p81-95.html
   My bibliography  Save this article

Forced convection from a horizontal ribbed rectangular base-plate penetrated by arrays of holes

Author

Listed:
  • Leung, C. W.
  • Chan, T. L.
  • Probert, S. D.
  • Kang, H. J.

Abstract

A method has been employed to augment the forced convection to ambient air from a horizontal rectangular plate with its upper surface mounted with transverse (to the mean air-flow) rectangular ribs, which are uniformly spaced and heated. The enhancement has been achieved by drilling uniformly-spaced holes in the base plate between consecutive ribs. The steady-state effects of varying the penetration ratio, [beta], (i.e. of the total cross-sectional areas of the holes to the whole base-plate area between consecutive ribs), diameter of the hole, d, ratio of channel's height to rib's common height, H/B, and Reynolds number, Rec, of the air-flow on the rate of forced convection from the rectangular plate were investigated experimentally for both laminar and turbulent flows over the ribs. Heat-transfer measurements were obtained for the ranges: 500[less-than-or-equals, slant]Rec[less-than-or-equals, slant]19,000; 4[less-than-or-equals, slant]H/B[less-than-or-equals, slant]10 and 0.05[less-than-or-equals, slant][beta][less-than-or-equals, slant]0.20. The following correlation applied for the prediction of the average heat-transfer coefficient for this heat-transfer system (i.e. as contained in the wind-tunnel): To achieve the maximum heat-transfer performance with this type of heat exchanger--for a specified application in which the degree of inhibition experienced by the air in flowing through the holes is known--optimised choices of the location, diameter and number of holes, as well as for the materials of the ribs and base, have to be made.

Suggested Citation

  • Leung, C. W. & Chan, T. L. & Probert, S. D. & Kang, H. J., 1999. "Forced convection from a horizontal ribbed rectangular base-plate penetrated by arrays of holes," Applied Energy, Elsevier, vol. 62(2), pages 81-95, February.
    • Handle: RePEc:eee:appene:v:62:y:1999:i:2:p:81-95
    as

    Download full text from publisher

    File URL: http://www.sciencedirect.com/science/article/pii/S0306-2619(98)00046-4
    Download Restriction: Full text for ScienceDirect subscribers only
    ---><---

    As the access to this document is restricted, you may want to search for a different version of it.

    References listed on IDEAS

    as
    1. Tam, W. C. & Leung, C. W. & Probert, S. D., 1993. "Forced convective air-cooling of simulated printed-circuit boards," Applied Energy, Elsevier, vol. 46(3), pages 197-214.
    Full references (including those not matched with items on IDEAS)

    Citations

    Citations are extracted by the CitEc Project, subscribe to its RSS feed for this item.
    as


    Cited by:

    1. 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).
    2. Ma, Ting & Wang, Qiu-wang & Zeng, Min & Chen, Yi-tung & Liu, Yang & Nagarajan, Vijaisri, 2012. "Study on heat transfer and pressure drop performances of ribbed channel in the high temperature heat exchanger," Applied Energy, Elsevier, vol. 99(C), pages 393-401.
    3. Leung, C. W. & Chen, S. & Wong, T. T. & Probert, S. D., 2000. "Forced convection and pressure drop in a horizontal triangular-sectional duct with V-grooved (i.e. orthogonal to the mean flow) inner surfaces," Applied Energy, Elsevier, vol. 66(3), pages 199-211, July.

    Most related items

    These are the items that most often cite the same works as this one and are cited by the same works as this one.
    1. Leung, C. W. & Kang, H. J. & Probert, S. D., 1997. "Horizontal simulated printed-circuit board assembly in fully-developed laminar-flow convection," Applied Energy, Elsevier, vol. 56(1), pages 71-91, January.

    More about this item

    Statistics

    Access and download statistics

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:eee:appene:v:62:y:1999:i:2:p:81-95. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    If CitEc recognized a bibliographic reference but did not link an item in RePEc to it, you can help with this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Catherine Liu (email available below). General contact details of provider: http://www.elsevier.com/wps/find/journaldescription.cws_home/405891/description#description .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.