ABOUT EFFICIENCY OF MIXTURES R125/R290 AND R134a/R290 AS WORKING MEDIA OF REFRIGERATING PLANTS

Authors

  • А. А. Вассерман Одесский национальный морской университет, ул. Мечникова, 34, г. Одесса,Украина, 65029, Ukraine
  • В. П. Мальчевский Одесский национальный морской университет, ул. Мечникова, 34, г. Одесса,Украина, 65029, Ukraine

DOI:

https://doi.org/10.18198/j.ind.gases.2008.0373

Keywords:

Refrigerant, Mixtures R125/R290 and R134a/R290, Thermodynamic conduct, Saturation state, Azeotropic composition, Refrigerating machine, COP

Abstract

The thermodynamic behavior of mixtures R125/R290 and R134a/R290 having different composition in saturation state was considered. The existence of aseotropic mixtures containing 0,6 molar part of R125 and 0,4 molar part of R134a was mentioned. The dependences of saturated vapor and liquid temperatures` differences of mixtures on isobars from pressure and temperature are presented in pressure interval from 0,1 up to 3,5 MPa and temperature interval from 220 to 350 °C. The energetic efficiency of refrigerating plants` cycles using mentioned mixtures as working media was estimated.

Author Biographies

А. А. Вассерман, Одесский национальный морской университет, ул. Мечникова, 34, г. Одесса,Украина, 65029

A.A. Vasserman

В. П. Мальчевский, Одесский национальный морской университет, ул. Мечникова, 34, г. Одесса,Украина, 65029

V.P. Malchevskiy

Downloads

Issue

No. 3 (2008): Технические газы

Section

THERMOPHYSICAL PROPERTIES OF GASES AND THEIR MIXTURES. THERMODYNAMIC ANALYSIS OF PROCESSES IN LOW-TEMPERATURE SYSTEMS

License

LICENSE AGREEMENT
After receiving an article for publication as required revision scientometric databases each author directs the license agreement on the assignment and transfer of the management of copyright. Signatures of the author (s) it is desirable to seal the personnel department of the institution where the author works (authors), or the seal of the Faculty.
Revision refers to the authors one layout for proofreading. Permissible only those fixes that result in compliance with the layout of the original text of the article. Significant changes are not permitted. Layout should be sent to the editorial office within days of receipt.