IDEAS home Printed from https://ideas.repec.org/a/eee/renene/v261y2026ics0960148126000911.html

Correlation for convective heat transfer coefficient of a solar still glass cover with mixed convection consideration

Author

Listed:
  • Kaushal, Arvind Kumar

Abstract

In the present work, a series of experiments were carried out on the floating wick basin type vertical multiple effect diffusion solar still with waste heat recovery (FW-BVMED-HR) to determine the convective heat transfer coefficient hc from the outer glass cover surface with mixed convection consideration existing in low wind conditions. Time-averaged hourly values of RaL, ReL and NuL numbers were determined from experimentally measured variables and a correlation for Nusselt number NuL was found from non-linear regression analysis, which had a mean deviation of only 17 % from the experimental values. The hc values from correlations by previous researchers significantly overestimate the hc values, since they have neglected the influence of free convection effects at low wind conditions. Further, in the range of experiments carried out, the effect of the free convection was found to cause a reduction in the total heat transfer.

Suggested Citation

  • Kaushal, Arvind Kumar, 2026. "Correlation for convective heat transfer coefficient of a solar still glass cover with mixed convection consideration," Renewable Energy, Elsevier, vol. 261(C).
    • Handle: RePEc:eee:renene:v:261:y:2026:i:c:s0960148126000911
    DOI: 10.1016/j.renene.2026.125266
    as

    Download full text from publisher

    File URL: http://www.sciencedirect.com/science/article/pii/S0960148126000911
    Download Restriction: Full text for ScienceDirect subscribers only
    File URL: https://libkey.io/10.1016/j.renene.2026.125266?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    As the access to this document is restricted, you may want to

    for a different version of it.

    More about this item

    Keywords

    ;
    ;
    ;
    ;
    ;

    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:renene:v:261:y:2026:i:c:s0960148126000911. 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.

    We have no bibliographic references for this item. You can help adding them by using 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.journals.elsevier.com/renewable-energy .

    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.