IDEAS home Printed from https://ideas.repec.org/a/eee/energy/v25y2000i6p543-561.html
   My bibliography  Save this article

Performance evaluation of hot-gas by-pass capacity control schemes for refrigeration and air-conditioning systems

Author

Listed:
  • Yaqub, M
  • M. Zubair, Syed
  • Khan, Jameel-ur-Rehman

Abstract

The capacity control of a vapor-compression refrigeration system is investigated by injecting hot gas and liquid refrigerant into the suction side of the compressor. Three different possibilities for the by-pass schemes are investigated for HFC-134a by considering finite size of the components that are used in the refrigeration systems. The model considers the finite-temperature difference in the heat exchangers, thus allowing the variations in the condenser and evaporator temperatures with respect to capacity and external-fluid inlet temperatures. It is demonstrated that the compressor discharge temperatures increase significantly when the hot-gas from the compressor discharge is extracted and injected (without any liquid injection) directly into the suction side of the compressor. A comparative study is also performed of these schemes in terms of the system coefficient of performance (COP), operating temperatures and the refrigerant by-pass fraction as a function of the percentage capacity reduction.

Suggested Citation

  • Yaqub, M & M. Zubair, Syed & Khan, Jameel-ur-Rehman, 2000. "Performance evaluation of hot-gas by-pass capacity control schemes for refrigeration and air-conditioning systems," Energy, Elsevier, vol. 25(6), pages 543-561.
    • Handle: RePEc:eee:energy:v:25:y:2000:i:6:p:543-561
    DOI: 10.1016/S0360-5442(00)00004-9
    as

    Download full text from publisher

    File URL: http://www.sciencedirect.com/science/article/pii/S0360544200000049
    Download Restriction: Full text for ScienceDirect subscribers only
    File URL: https://libkey.io/10.1016/S0360-5442(00)00004-9?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 search for a different version of it.

    References listed on IDEAS

    as
    1. Yaqub, M. & Zubair, Syed M., 1996. "Thermodynamic analysis of capacity-control schemes for refrigeration and air-conditioning systems," Energy, Elsevier, vol. 21(6), pages 463-472.
    2. Yaqub, M. & Zubair, Syed M. & Khan, Shamsul Hoda, 1995. "Second-law-based thermodynamic analysis of hot-gas, by-pass, capacity-control schemes for refrigeration and air-conditioning systems," Energy, Elsevier, vol. 20(6), pages 483-493.
    3. Khan, Shamsul Hoda & Zubair, Syed M., 1993. "Thermodynamic analyses of the CFC-12 and HFC-134a refrigeration cycles," Energy, Elsevier, vol. 18(7), pages 717-726.
    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, Jierong & Sun, Li & Li, Tingxun, 2018. "A novel defrosting method in gasoline vapor recovery application," Energy, Elsevier, vol. 163(C), pages 751-765.
    2. Cho, Honghyun & Kim, Yongchan & Jang, Inkyu, 2005. "Performance of a showcase refrigeration system with multi-evaporator during on–off cycling and hot-gas bypass defrost," Energy, Elsevier, vol. 30(10), pages 1915-1930.
    3. Amer, Mohammed & Wang, Chi-Chuan, 2017. "Review of defrosting methods," Renewable and Sustainable Energy Reviews, Elsevier, vol. 73(C), pages 53-74.

    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. Mohammad, Abdulrahman Th. & Bin Mat, Sohif & Sulaiman, M.Y. & Sopian, K. & Al-abidi, Abduljalil A., 2013. "Survey of hybrid liquid desiccant air conditioning systems," Renewable and Sustainable Energy Reviews, Elsevier, vol. 20(C), pages 186-200.
    2. Yang, Jun Lan & Ma, Yi Tai & Li, Min Xia & Guan, Hai Qing, 2005. "Exergy analysis of transcritical carbon dioxide refrigeration cycle with an expander," Energy, Elsevier, vol. 30(7), pages 1162-1175.
    3. Kui Lu & Ibrahim A. Sultan & Truong H. Phung, 2023. "A Literature Review of the Positive Displacement Compressor: Current Challenges and Future Opportunities," Energies, MDPI, vol. 16(20), pages 1-25, October.
    4. Mendoza-Miranda, J.M. & Mota-Babiloni, A. & Ramírez-Minguela, J.J. & Muñoz-Carpio, V.D. & Carrera-Rodríguez, M. & Navarro-Esbrí, J. & Salazar-Hernández, C., 2016. "Comparative evaluation of R1234yf, R1234ze(E) and R450A as alternatives to R134a in a variable speed reciprocating compressor," Energy, Elsevier, vol. 114(C), pages 753-766.

    More about this item

    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:energy:v:25:y:2000:i:6:p:543-561. 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: Catherine Liu (email available below). General contact details of provider: http://www.journals.elsevier.com/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.