Abstract
In this report, we have examined the behavior of heat capacities and Joule-Thomson coefficients in low- and moderate-density regions based on recent theoretical studies of the ideal-gas heat capacity and virial coefficients of R-32, R-125, R-134a, R-143a, and R-152a. The results have been compared with those derived from empirical equations of state which have been recently developed, based on a large quantity of experimental data for these refrigerants. Both results are in good agreement. Proper behaviors for these second-derivative properties justify the use of the empirical equations of state in low-temperature and low-density regions where no experimental data are available.
| Original language | English |
|---|---|
| Pages (from-to) | 141-148 |
| Number of pages | 8 |
| Journal | International Journal of Thermophysics |
| Volume | 20 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 1999 Jan 1 |
| Event | Proceedings of 1997 13th Symposium on Thermophysical Properties - Boulder, CO, USA Duration: 1997 Jun 22 → 1997 Jun 27 |
ASJC Scopus subject areas
- Condensed Matter Physics
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Yokozeki, A., Sato, H., & Watanabe, K. (1999). Heat capacities and Joule-Thomson coefficients of HFC refrigerants. International Journal of Thermophysics, 20(1), 141-148. https://doi.org/10.1023/A:1021486432011