IDEAS home Printed from https://ideas.repec.org/a/gam/jeners/v15y2022i5p1789-d760793.html
   My bibliography  Save this article

Regression Model of Dynamic Pulse Instabilities during Condensation of Zeotropic and Azeotropic Refrigerant Mixtures R404A, R448A and R507A in Minichannels

Author

Listed:
  • Waldemar Kuczyński

    (Department of Energy, Faculty of Mechanical Engineering, Technical University of Koszalin, Ul. Racławicka 15-17, 75-620 Koszalin, Poland)

  • Marcin Kruzel

    (Department of Energy, Faculty of Mechanical Engineering, Technical University of Koszalin, Ul. Racławicka 15-17, 75-620 Koszalin, Poland)

  • Katarzyna Chliszcz

    (Department of Energy, Faculty of Mechanical Engineering, Technical University of Koszalin, Ul. Racławicka 15-17, 75-620 Koszalin, Poland)

Abstract

This paper presents experimental research and mathematical modeling data concerning the impact of unit dynamic instabilities on the phase-transition condensation processes of the zeotropic mixtures R404A and R448A and azeotropic R507A refrigerants in pipe minichannels. The R507 refrigerant is currently used as a temporary substitute for R404A, whereas R448A is a sustainable prospective substitute for R404A. The study presents experimental testing data for the condensation processes of these refrigerants in pipe minichannels and a proposal for the use of dimensional analysis, including the Π-Buckingham theorem, to determine the regression relationship explaining the propagation of unit dynamic instabilities. Based on the experimental studies performed, regression computational models were developed and showed satisfactory agreement in the range of 20% to 25%. They give the possibility to identify, in a utilitarian, way the speed of propagation of temperature and pressure instabilities during the liquefaction of refrigerants. The study was carried out on pipe minichannels with an internal diameter of di = 3.3, 2.3, 1.92, 1.44 and 1.40 mm.

Suggested Citation

  • Waldemar Kuczyński & Marcin Kruzel & Katarzyna Chliszcz, 2022. "Regression Model of Dynamic Pulse Instabilities during Condensation of Zeotropic and Azeotropic Refrigerant Mixtures R404A, R448A and R507A in Minichannels," Energies, MDPI, vol. 15(5), pages 1-24, February.
    • Handle: RePEc:gam:jeners:v:15:y:2022:i:5:p:1789-:d:760793
    as

    Download full text from publisher

    File URL: https://www.mdpi.com/1996-1073/15/5/1789/pdf
    Download Restriction: no
    File URL: https://www.mdpi.com/1996-1073/15/5/1789/
    Download Restriction: no
    ---><---

    References listed on IDEAS

    as
    1. Yuanhua Lin & Xiangwei Kong & Yijie Qiu & Qiji Yuan, 2013. "Calculation Analysis of Pressure Wave Velocity in Gas and Drilling Mud Two-Phase Fluid in Annulus during Drilling Operations," Mathematical Problems in Engineering, Hindawi, vol. 2013, pages 1-17, September.
    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. Mykola Radchenko & Andrii Radchenko & Eugeniy Trushliakov & Hanna Koshlak & Roman Radchenko, 2023. "Advanced Method of Variable Refrigerant Flow (VRF) Systems Designing to Forecast Onsite Operation—Part 2: Phenomenological Simulation to Recoup Refrigeration Energy," Energies, MDPI, vol. 16(4), pages 1-17, February.
    2. Andrii Radchenko & Mykola Radchenko & Hanna Koshlak & Roman Radchenko & Serhiy Forduy, 2022. "Enhancing the Efficiency of Integrated Energy Systems by the Redistribution of Heat Based on Monitoring Data," Energies, MDPI, vol. 15(22), pages 1-18, November.
    3. Waldemar Kuczyński & Marcin Kruzel & Katarzyna Chliszcz, 2022. "A Regressive Model for Periodic Dynamic Instabilities during Condensation of R1234yf and R1234ze Refrigerants," Energies, MDPI, vol. 15(6), pages 1-14, March.
    4. Mykola Radchenko & Andrii Radchenko & Eugeniy Trushliakov & Anatoliy Pavlenko & Roman Radchenko, 2023. "Advanced Method of Variable Refrigerant Flow (VRF) System Design to Forecast on Site Operation—Part 3: Optimal Solutions to Minimize Sizes," Energies, MDPI, vol. 16(5), pages 1-18, March.

    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:15:y:2022:i:5:p:1789-:d:760793. 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.