Binary interaction parameters for the study of hydrofluoroolefins blends using cubic equations of state

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedings – Annual report year: 2018Researchpeer-review

View graph of relations

Refrigerant blends containing hydrofluoroolefins are becoming of great interest as replacement fluids for air conditioning and refrigeration systems, and organic Rankine cycle power systems. Today, different blends of hydrofluoroolefins with hydrofluorocarbons or natural refrigerants ( e.g. hydrocarbons, carbon dioxide) are studied in order to improve the safety or performance features of the replacement fluids. The lack of experimental data for these fluids impedes the development of accurate mixing models for Helmholtz-based equations of state. In this work a new mixing model for the study of hydrofluoroolefin blends by using a modified
Peng-Robinson equation of state is presented. The mixture parameters were fitted based on experimental vapor-liquid-equilibria data of several ydrofluoroolefin blends. The predictive performance of the new model was compared with that of the standard Peng-Robinson equation of state and the fluid-specific Helmholtz-based models. The optimized binary interaction parameters improved significantly the predictions of saturated pressures for mixtures of hydrofluoroolefins and hydrocarbons.
Original languageEnglish
Title of host publicationProceeding of the 1st IIR International Conference on the Application of HFO Refrigerant
Number of pages8
PublisherInternational Institute of Refrigeration
Publication date2018
Article number1119
ISBN (Electronic)9782362150272
Publication statusPublished - 2018
Event1st IIR International Conference on the Application of HFO Refrigerant - Birmingham, United Kingdom
Duration: 2 Sep 20185 Sep 2018


Conference1st IIR International Conference on the Application of HFO Refrigerant
CountryUnited Kingdom
CitationsWeb of Science® Times Cited: No match on DOI

    Research areas

  • Cubic equation of state, Peng-Robinson, Mixing parameters, Hydrofluoroolefins, Mixtures
Download as:
Download as PDF
Select render style:
Download as HTML
Select render style:
Download as Word
Select render style:

ID: 152922173