IDEAS home Printed from https://ideas.repec.org/a/gam/jeners/v16y2023i5p2476-d1088355.html
   My bibliography  Save this article

Pool Boiling of Novec-649 on Inclined Microchannel

Author

Listed:
  • Robert Kaniowski

    (Faculty of Mechatronics and Mechanical Engineering, Kielce University of Technology, al. Tysiąclecia P.P. 7, 25-314 Kielce, Poland)

Abstract

Significant amounts of heat flow can be removed with small temperature differences by boiling. This process is used in a variety of industries, e.g., cooling electronics, digital circuits, power sources, etc. Heat dissipation from equipment that generates significant heat flows involves the movement of thermal energy through a wall into a cooling fluid. In the present study, this mechanism was analysed during the boiling of Novec-649 fluid at atmospheric pressure. The heat transfer surfaces were samples made of copper with milled, parallel grooves with a depth of 0.3 mm and a width ranging from 0.2 to 0.5 mm in 0.1 mm increments for straight channels and channels inclined with respect to the vertical by 30° and 60°, respectively. The study was carried out from the onset of nucleate boiling, approximately q = 7 kWm −2 with a heat flux increase until the critical heat flux was reached. The maximum heat flux was 262 kWm −2 and the heat transfer coefficient was 19.4 kWm −2 K −1 , achieved for surfaces with straight microchannels. A maximum heat flux increased by 80% and a heat transfer coefficient twice as high compared to a smooth surface was obtained. The performance of the experiment can be deemed adequate, considering that it compares well with the correlation results of different authors.

Suggested Citation

  • Robert Kaniowski, 2023. "Pool Boiling of Novec-649 on Inclined Microchannel," Energies, MDPI, vol. 16(5), pages 1-17, March.
    • Handle: RePEc:gam:jeners:v:16:y:2023:i:5:p:2476-:d:1088355
    as

    Download full text from publisher

    File URL: https://www.mdpi.com/1996-1073/16/5/2476/pdf
    Download Restriction: no
    File URL: https://www.mdpi.com/1996-1073/16/5/2476/
    Download Restriction: no
    ---><---

    References listed on IDEAS

    as
    1. Łukasz J. Orman & Norbert Radek & Jacek Pietraszek & Marcin Szczepaniak, 2020. "Analysis of Enhanced Pool Boiling Heat Transfer on Laser—Textured Surfaces," Energies, MDPI, vol. 13(11), pages 1-19, May.
    2. Robert Kaniowski & Robert Pastuszko, 2021. "Boiling of FC-72 on Surfaces with Open Copper Microchannel," Energies, MDPI, vol. 14(21), pages 1-18, November.
    3. Robert Kaniowski & Robert Pastuszko, 2021. "Pool Boiling of Water on Surfaces with Open Microchannels," Energies, MDPI, vol. 14(11), pages 1-21, May.
    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.
    1. Magdalena Piasecka & Kinga Strąk, 2021. "Characteristics of Refrigerant Boiling Heat Transfer in Rectangular Mini-Channels during Various Flow Orientations," Energies, MDPI, vol. 14(16), pages 1-30, August.
    2. Denis Kuznetsov & Aleksandr Pavlenko, 2022. "Heat Transfer during Nitrogen Boiling on Surfaces Modified by Microarc Oxidation," Energies, MDPI, vol. 15(16), pages 1-14, August.
    3. Robert Kaniowski & Robert Pastuszko, 2021. "Boiling of FC-72 on Surfaces with Open Copper Microchannel," Energies, MDPI, vol. 14(21), pages 1-18, November.
    4. Hesam Moghadasi & Navid Malekian & Hamid Saffari & Amir Mirza Gheitaghy & Guo Qi Zhang, 2020. "Recent Advances in the Critical Heat Flux Amelioration of Pool Boiling Surfaces Using Metal Oxide Nanoparticle Deposition," Energies, MDPI, vol. 13(15), pages 1-49, August.
    5. Magdalena Piasecka, 2023. "Heat and Mass Transfer Issues in Mini-Gaps," Energies, MDPI, vol. 16(16), pages 1-6, August.
    6. Magdalena Piasecka & Sylwia Hożejowska & Beata Maciejewska & Anna Pawińska, 2021. "Time-Dependent Heat Transfer Calculations with Trefftz and Picard Methods for Flow Boiling in a Mini-Channel Heat Sink," Energies, MDPI, vol. 14(7), pages 1-24, March.
    7. Robert Kaniowski & Robert Pastuszko, 2021. "Pool Boiling of Water on Surfaces with Open Microchannels," Energies, MDPI, vol. 14(11), pages 1-21, May.

    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:5:p:2476-:d:1088355. 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.