IDEAS home Printed from https://ideas.repec.org/a/gam/jeners/v16y2023i9p3631-d1130849.html
   My bibliography  Save this article

Correlations of Heat Transfer and Fluid Flow Data for Lattice Brick Settings in Tunnel Kilns

Author

Listed:
  • Issa F. Almesri

    (Mechanical Power Engineering Department, College of Technological Studies, PAAET, Shuwaikh 70654, Kuwait)

  • Mosab A. Alrahmani

    (Mechanical Power Engineering Department, College of Technological Studies, PAAET, Shuwaikh 70654, Kuwait)

  • Jaber H. Almutairi

    (Mechanical Power Engineering Department, College of Technological Studies, PAAET, Shuwaikh 70654, Kuwait)

  • Hosny Z. Abou-Ziyan

    (Mechanical Power Engineering Department, College of Technological Studies, PAAET, Shuwaikh 70654, Kuwait
    Mechanical Power Engineering Department, Faculty of Engineering, Helwan University, Cairo 11795, Egypt)

Abstract

This paper proposes correlation equations of heat transfer and pressure drop for the design and operation of tunnel kilns loaded with lattice brick settings of different geometrical parameters in the form of Nusselt number and friction factor. The developed correlation equations considered parameters that were not investigated in previous studies, such as the relative roughness of the bricks and the stack channels, and they also extended the Reynolds numbers to a practical range that was not covered before in a simple, practical form. The correlation equations are valid for Reynolds number between 125 and 10,200, Prandtl number between 0.68 and 0.73, brick’s relative roughness between 0.23 and 0.93, voidage fraction between 0.48 and 0.653, and the geometrical parameters of the tested lattice brick settings. The achieved correlations of the Nusselt number and the friction factor are well compared with the available correlations in the literature in their valid range of parameters. It is found that Nusselt numbers and the friction factors for low-density are higher than those of high-density settings for all considered parameters except the voidage fraction. The effect of the considered parameters confirms that Nusselt numbers increase and the friction factors decrease substantially with the Reynolds number and slightly with the Prandtl number. At a constant Reynolds number, both the Nusselt number and the friction factor increase as the brick’s relative roughness is increased. Moreover, as the stack channel spacing is increased, the Nusselt number decreases, and the friction factor increases. The voidage fraction of the setting has a monotonic effect on both Nusselt numbers and friction factors. Nusselt numbers for high-density are higher than those for low-density settings as the voidage fraction varies.

Suggested Citation

  • Issa F. Almesri & Mosab A. Alrahmani & Jaber H. Almutairi & Hosny Z. Abou-Ziyan, 2023. "Correlations of Heat Transfer and Fluid Flow Data for Lattice Brick Settings in Tunnel Kilns," Energies, MDPI, vol. 16(9), pages 1-25, April.
  • Handle: RePEc:gam:jeners:v:16:y:2023:i:9:p:3631-:d:1130849
    as

    Download full text from publisher

    File URL: https://www.mdpi.com/1996-1073/16/9/3631/pdf
    Download Restriction: no

    File URL: https://www.mdpi.com/1996-1073/16/9/3631/
    Download Restriction: no
    ---><---

    References listed on IDEAS

    as
    1. Mosab Alrahmani & Issa Almesri & Jaber Almutairi & Hosny Abou-Ziyan, 2022. "Combined Effect of Brick Surface Roughness and Lattice Setting Density on Brick Firing in Tunnel Kilns," Energies, MDPI, vol. 15(15), pages 1-22, August.
    Full references (including those not matched with items on IDEAS)

    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.

      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:gam:jeners:v:16:y:2023:i:9:p:3631-:d:1130849. 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: MDPI Indexing Manager (email available below). General contact details of provider: https://www.mdpi.com .

      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.