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New Thermodynamic Mixture Models for HFO-containing Blends

Published

Author(s)

Ian Bell

Abstract

With the modern use of fluorinated olefins as refrigerants, there is a pressing need for reference thermodynamic models to design components and cycles. Recent activities at NIST are summarized, including a survey of existing literature data and results from experimental measurements. Measurements of bubble point pressure, speed of sound, and density on a selection of new blends were carried out. Finally, new thermodynamic models compatible with REFPROP 10.0 were developed. Included in this set are the binaries R-1234yf/134a, R-1234yf/1234ze(E), and R-134a/1234ze(E). The extremely high accuracy of the measurements (particularly the measurements of density and speed of sound) have allowed us to identify deficiencies in the existing reference pure fluid equations of state.
Proceedings Title
19th International Refrigeration and Air Conditioning Conference at Purdue, July 11-14, 2022
Conference Dates
July 11-14, 2022
Conference Location
West Lafayette, IN, US

Citation

Bell, I. (2022), New Thermodynamic Mixture Models for HFO-containing Blends, 19th International Refrigeration and Air Conditioning Conference at Purdue, July 11-14, 2022, West Lafayette, IN, US, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=934526 (Accessed May 25, 2024)

Issues

If you have any questions about this publication or are having problems accessing it, please contact reflib@nist.gov.

Created July 11, 2022, Updated November 29, 2022