IDEAS home Printed from https://ideas.repec.org/a/gam/jeners/v10y2017i10p1517-d113870.html
   My bibliography  Save this article

Investigation of the Thermodynamic Process of the Refrigerator Compressor Based on the m- θ Diagram

Author

Listed:
  • Tao Wang

    (School of Energy and Power Engineering, Xi’an Jiaotong University, Xi’an 710049, China)

  • Zhilong He

    (School of Energy and Power Engineering, Xi’an Jiaotong University, Xi’an 710049, China)

  • Jun Guo

    (Nanjing Engineering Institute of Aircraft Systems, Shuige Road 33, Nanjing 211106, China)

  • Xueyuan Peng

    (School of Energy and Power Engineering, Xi’an Jiaotong University, Xi’an 710049, China)

Abstract

The variation of refrigerant mass in the cylinder of refrigerator compressor has a great influence on the compressor’s thermodynamic process. In this paper, the m- θ diagram, which represents the variation of refrigerant mass in compressor cylinder (m) and the crank angle ( θ ), is proposed to investigate the thermodynamic process of the refrigerator compressor. Comparing with the traditional pressure-Volume (p-V) indicator diagram, the refrigerant’s backflow trigged by the delayed closure of valve can be clearly expressed in the m- θ diagram together with the mass flow rate. A typical m- θ diagram was obtained by experimental and theoretical investigations. To improve the thermodynamic model of the compressor, a 3D fluid-structure interaction (FSI) FEA model has been introduced to find out the effective flow area of the valves. Based on the m- θ diagram, the effect of rotating speed on the backflow through the valve, which depends on the movement of the valve, has been investigated. Specific to the compressor used in this study, the maximum backflow through the suction valve and discharge valve occur at 3500 r·min −1 and 5500 r·min −1 , respectively.

Suggested Citation

  • Tao Wang & Zhilong He & Jun Guo & Xueyuan Peng, 2017. "Investigation of the Thermodynamic Process of the Refrigerator Compressor Based on the m- θ Diagram," Energies, MDPI, vol. 10(10), pages 1-14, October.
    • Handle: RePEc:gam:jeners:v:10:y:2017:i:10:p:1517-:d:113870
    as

    Download full text from publisher

    File URL: https://www.mdpi.com/1996-1073/10/10/1517/pdf
    Download Restriction: no
    File URL: https://www.mdpi.com/1996-1073/10/10/1517/
    Download Restriction: no
    ---><---

    Citations

    Citations are extracted by the CitEc Project, subscribe to its RSS feed for this item.
    as


    Cited by:

    1. Wang, Chuang & Xing, Ziwen & Sun, Shizhong & He, Zhilong, 2020. "Loss analysis of oil-free twin-screw expanders for recovering energy in fuel cell systems by means of p-θ diagrams," Energy, Elsevier, vol. 201(C).

    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:10:y:2017:i:10:p:1517-:d:113870. 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.

    We have no bibliographic references for this item. You can help adding them by using 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.