Review of the BACKONE equation of state and its applications^*

^*Dedicated to Professor Johann Fischer on the occasion of his 75th birthday

ABSTRACT

This paper presents a review of the BACKONE equation of state (EOS) and its various applications in the study of pure fluid and mixtures as refrigerants, working fluids, natural gases and the study of heat pumps, refrigeration cycles, organic Rankine cycles, trilateral cycles and power flash cycles. It also presents an accurate parameterisation of the BACKONE EOS for the low global warming potential working fluid 3,3,3-trifluoropropene (HFO-1243zf). The average absolute deviations (AAD) between experimental vapour pressure and saturated liquid density data from those of the BACKONE EOS are 0.12% and 0.08%, respectively. The BACKONE EOS for HFO-1243zf also predicts thermodynamic data accurately. The AAD between the BACKONE predicted values and experimental data are 0.20% for sub-cooled liquid density and 0.56% for gaseous pressure.

KEYWORDS:

• BACKONE
• equation of state (EOS)
• HydroFluoro-Olefin, 3,3,3-trifluoropropene (HFO-1243zf)
• organic Rankine cycle (ORC)
• refrigeration cycle

Acknowledgments

This research was funded by Vietnam National Foundation for Science and Technology Development under grant number 107.01-2012.29. The authors gratefully acknowledge financial support by the Vietnamese National Foundation for Science and Technology Development (NAFOSTED). The authors also thank Prof Vrabec, Paderborn University, for advice and fruitful discussions.

Disclosure statement

No potential conflict of interest was reported by the authors.

Notes

^* Dedicated to Professor Johann Fischer on the occasion of his 75th birthday

Additional information

Funding

Vietnamese National Foundation for Science and Technology Development (NAFOSTED) [grant number 107.01-2012.29].