IDEAS home Printed from https://ideas.repec.org/a/eee/appene/v45y1993i4p355-370.html
   My bibliography  Save this article

Comparative study of some equations of state for computing properties of refrigerant-12

Author

Listed:
  • Abu-Abdou, K.
  • Zedan, M. F.

Abstract

An extended form of the popular two-constant van der Waals and Redlich-Kwong equations of state is suggested. In this extended form, the second constant in each equation is replaced by a polynomial in powers of temperature. The accuracy of the resulting equations in describing the (p, v, T) behaviour of Refrigerant-12 (R-12) and in generating its enthalpy and entropy curves is investigated for various polynomial degrees. The Benedict-Webb-Rubin equation with a varying number of terms is also included in the investigation for comparison purposes. A general procedure has been developed to compute the polynomial coefficients from the p-v-T data at a limited number of [`]base' points and to calculate the enthalpy and entropy using thermodynamic relationships. It has been found that the extended Redlich-Kwong equation, with four polynomial terms, produces results of comparable accuracy to the rather complicated Benedict-Webb-Rubin equation and covers the whole vapour region of R-12 up to the critical point.

Suggested Citation

  • Abu-Abdou, K. & Zedan, M. F., 1993. "Comparative study of some equations of state for computing properties of refrigerant-12," Applied Energy, Elsevier, vol. 45(4), pages 355-370.
    • Handle: RePEc:eee:appene:v:45:y:1993:i:4:p:355-370
    as

    Download full text from publisher

    File URL: http://www.sciencedirect.com/science/article/pii/0306-2619(93)90007-C
    Download Restriction: Full text for ScienceDirect subscribers only
    ---><---

    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:eee:appene:v:45:y:1993:i:4:p:355-370. 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: Catherine Liu (email available below). General contact details of provider: http://www.elsevier.com/wps/find/journaldescription.cws_home/405891/description#description .

    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.