IDEAS home Printed from https://ideas.repec.org/a/gam/jeners/v13y2020i24p6573-d461482.html
   My bibliography  Save this article

Experimental Study of Heat Transfer on the Internal Surfaces of a Double-Wall Structure with Pin Fin Array

Author

Listed:
  • Wei Zhang

    (School of Power and Energy, Northwestern Polytechnical University, Xi’an 710072, China
    School of Aero-Engine, Shenyang Aerospace University, Shenyang 110136, China)

  • Huiren Zhu

    (School of Power and Energy, Northwestern Polytechnical University, Xi’an 710072, China)

  • Guangchao Li

    (School of Aero-Engine, Shenyang Aerospace University, Shenyang 110136, China)

Abstract

The double-wall structure is one of the most effective cooling techniques used in many engineering applications, such as turbine vane/blade, heat exchangers, etc. Heat transfer on the internal surfaces of a double-wall structure was studied at impinging Reynolds numbers ranging from 1 × 10 4 to 6 × 10 4 using the transient thermochromic liquid crystal (TLC) technique. The two-dimensional distributions of Nusselt numbers and their averaged values were obtained on the impingement surface, target surface and the pin fin surface. The Nusselt number correlations on the surfaces mentioned above were determined as a function of Reynolds number. The results show that the second peak values of the Nusselt number distribution appear on the target surface at all Reynolds numbers studied in this paper for a short distance of the target surface to impingement surface. This phenomenon becomes significant with the further increase of the Reynolds number. The difference between the Nusselt number at the second peak and the stagnation point decreases with the increasing Reynolds number. The maximal Nusselt number regions on the impingement surface appear at the left and right sides of the pin fins between the two impingement holes. The Nusselt numbers of the pin fin surfaces are highly dependent on their various locations in the double-wall structures. The contributions of the impingement surface, pin fin surface and target surface to the overall heat transfer rate are analyzed. The target surface contributed the largest amount of heat transfer rate with a value of about 62%. The heat transfer contribution is from 18% to 21% for the impingement surface and 16% to 18% for the pin fin surfaces within the studied Reynolds numbers.

Suggested Citation

  • Wei Zhang & Huiren Zhu & Guangchao Li, 2020. "Experimental Study of Heat Transfer on the Internal Surfaces of a Double-Wall Structure with Pin Fin Array," Energies, MDPI, vol. 13(24), pages 1-17, December.
    • Handle: RePEc:gam:jeners:v:13:y:2020:i:24:p:6573-:d:461482
    as

    Download full text from publisher

    File URL: https://www.mdpi.com/1996-1073/13/24/6573/pdf
    Download Restriction: no
    File URL: https://www.mdpi.com/1996-1073/13/24/6573/
    Download Restriction: no
    ---><---

    References listed on IDEAS

    as
    1. Abdulrahman H. Alenezi & Abdulrahman Almutairi & Hamad M. Alhajeri & Abdulmajid Addali & Abdelaziz A. A. Gamil, 2018. "Flow Structure and Heat Transfer of Jet Impingement on a Rib-Roughened Flat Plate," Energies, MDPI, vol. 11(6), pages 1-16, June.
    2. Florian Ries & Yongxiang Li & Dario Klingenberg & Kaushal Nishad & Johannes Janicka & Amsini Sadiki, 2018. "Near-Wall Thermal Processes in an Inclined Impinging Jet: Analysis of Heat Transport and Entropy Generation Mechanisms," Energies, MDPI, vol. 11(6), pages 1-23, May.
    3. Mahir Faris Abdullah & Rozli Zulkifli & Zambri Harun & Shahrir Abdullah & Wan Aizon Wan Ghopa, 2018. "Experimental and Numerical Simulation of the Heat Transfer Enhancement on the Twin Impingement Jet Mechanism," Energies, MDPI, vol. 11(4), pages 1-21, April.
    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. Liang Xu & Zineng Sun & Qicheng Ruan & Lei Xi & Jianmin Gao & Yunlong Li, 2023. "Development Trend of Cooling Technology for Turbine Blades at Super-High Temperature of above 2000 K," Energies, MDPI, vol. 16(2), pages 1-19, January.

    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. Parkpoom Sriromreun & Paranee Sriromreun, 2019. "A Numerical and Experimental Investigation of Dimple Effects on Heat Transfer Enhancement with Impinging Jets," Energies, MDPI, vol. 12(5), pages 1-16, March.
    2. Thomas Jackowski & Maximilian Elfner & Hans-Jörg Bauer & Katharina Stichling & Marco Hahn, 2021. "Experimental Study of Impingement Effusion Cooled Double-Wall Combustor Liners: Aerodynamic Analysis with Stereo-PIV," Energies, MDPI, vol. 14(19), pages 1-23, September.
    3. Salman, Mohammad & Park, Myeong Hyeon & Chauhan, Ranchan & Kim, Sung Chul, 2021. "Experimental analysis of single loop solar heat collector with jet impingement over indented dimples," Renewable Energy, Elsevier, vol. 169(C), pages 618-628.
    4. Mahir Faris Abdullah & Rozli Zulkifli & Hazim Moria & Asmaa Soheil Najm & Zambri Harun & Shahrir Abdullah & Wan Aizon Wan Ghopa & Noor Humam Sulaiman, 2021. "Assessment of TiO 2 Nanoconcentration and Twin Impingement Jet of Heat Transfer Enhancement—A Statistical Approach Using Response Surface Methodology," Energies, MDPI, vol. 14(3), pages 1-29, January.
    5. Simone Ferrari & Riccardo Rossi & Annalisa Di Bernardino, 2022. "A Review of Laboratory and Numerical Techniques to Simulate Turbulent Flows," Energies, MDPI, vol. 15(20), pages 1-56, October.
    6. Liang Xu & Tao Yang & Yanhua Sun & Lei Xi & Jianmin Gao & Yunlong Li, 2021. "Flow and Heat Transfer Characteristics of a Swirling Impinging Jet Issuing from a Threaded Nozzle of 45 Degrees," Energies, MDPI, vol. 14(24), pages 1-26, December.
    7. Flavia V. Barbosa & Senhorinha F. C. F. Teixeira & José C. F. Teixeira, 2021. "Experimental and Numerical Study of Multiple Jets Impinging a Step Surface," Energies, MDPI, vol. 14(20), pages 1-23, October.
    8. Robert Keser & Alberto Ceschin & Michele Battistoni & Hong G. Im & Hrvoje Jasak, 2020. "Development of a Eulerian Multi-Fluid Solver for Dense Spray Applications in OpenFOAM," Energies, MDPI, vol. 13(18), pages 1-18, September.
    9. Yu, An & Tang, Qinghong & Chen, Huixiang & Zhou, Daqing, 2021. "Investigations of the thermodynamic entropy evaluation in a hydraulic turbine under various operating conditions," Renewable Energy, Elsevier, vol. 180(C), pages 1026-1043.
    10. Artur J. Jaworski, 2019. "Special Issue “Fluid Flow and Heat Transfer”," Energies, MDPI, vol. 12(16), pages 1-4, August.
    11. Senda Agrebi & Louis Dreßler & Hendrik Nicolai & Florian Ries & Kaushal Nishad & Amsini Sadiki, 2021. "Analysis of Local Exergy Losses in Combustion Systems Using a Hybrid Filtered Eulerian Stochastic Field Coupled with Detailed Chemistry Tabulation: Cases of Flames D and E," Energies, MDPI, vol. 14(19), pages 1-21, October.

    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:13:y:2020:i:24:p:6573-:d:461482. 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.