IDEAS home Printed from https://ideas.repec.org/a/oup/ijlctc/v9y2014i4p277-283..html
   My bibliography  Save this article

Energetic and exergetic analyses of a transcritical N2O heat pump system

Author

Listed:
  • Amol S. Dayma
  • Neeraj Agrawal
  • Prasant Nanda

Abstract

In the present study, energetic and exergetic analyses of a transcritical nitrous oxide (N2O) heat pump cycle are carried out on the basis of the optimization of discharge pressure. A simulation code was developed to study cycle performances for the given design and operating parameters. This code was integrated with the thermodynamic property subroutine ‘N2OPROP’ to estimate the thermodynamic properties of N2O in subcritical and supercritical regions. Variation trends of optimal parameters for an N2O system are similar to those of a CO2 system. However, the N2O cycle exhibits higher cooling COP, lower compressor pressure ratio and lower discharge pressure and temperature, and higher second-law efficiency than those of CO2-based systems. An N2O system is inferior in terms of volumetric cooling capacity compared with a transcritical CO2 system. The maximum exergy loss is observed in the throttle valve (expansion valve) as in the case of a CO2 transcritical system due to low critical temperature.

Suggested Citation

  • Amol S. Dayma & Neeraj Agrawal & Prasant Nanda, 2014. "Energetic and exergetic analyses of a transcritical N2O heat pump system," International Journal of Low-Carbon Technologies, Oxford University Press, vol. 9(4), pages 277-283.
    • Handle: RePEc:oup:ijlctc:v:9:y:2014:i:4:p:277-283.
    as

    Download full text from publisher

    File URL: http://hdl.handle.net/10.1093/ijlct/cts076
    Download Restriction: Access to full text is restricted to subscribers.
    ---><---

    As the access to this document is restricted, you may want to search for a different version of it.

    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:oup:ijlctc:v:9:y:2014:i:4:p:277-283.. 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: Oxford University Press (email available below). General contact details of provider: https://academic.oup.com/ijlct .

    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.