Thermodynamic Properties of 2,3,3,3-Tetrafluoroprop-1-ene (R1234yf): Vapor Pressure and p–ρ–T Measurements and an Equation of State

Richter, Markus; McLinden, Mark O.; Lemmon, Eric W.

doi:10.1021/je200369m

Cited by 209 publications

(183 citation statements)

References 20 publications

Supporting

Mentioning

173

Contrasting

Order By: Relevance

“…The ranges of pressures and temperatures were chosen based on availability of experimental data; the pressure range for R-1234yf was extended to 10 MPa to test model extrapolation in comparison with the predictions of the preliminary equation of state [15] (E.W. Lemmon, personal communication, 2009).…”

Section: Simulation Detailsmentioning

confidence: 99%

See 1 more Smart Citation

Monte Carlo Simulation of Vapor–Liquid Equilibria for Perfluoropropane (R-218) and 2,3,3,3-Tetrafluoropropene (R-1234yf)

2010

View full text Add to dashboard Cite

Thermophysical properties of two refrigerants (perfluoropropane and 2,3,3,3-tetrafluoropropene) were computed using Monte Carlo methods with the OPLS-AA (Optimized Potentials for Liquid Simulations-All Atoms) forcefield. Original OPLS-AA parameters were extended to include an F atom attached to a double bond in 2,3,3,3-tetrafluoropropene and modified to produce the correct stationary geometry for this compound. The results of the simulations for critical parameters, saturated densities, saturated pressures, liquid densities, and vaporization enthalpies are in good agreement with available experimental data and equation of state models. Systematic deviations between the experimental data and the predicted values were observed for liquid densities and saturated pressures, suggesting that further refinement of forcefield parameters that can lead to better accuracy may be possible.

show abstract

Section: Simulation Detailsmentioning

confidence: 99%

“…), making it potentially superior to the presently used alternatives [9]. Experimental studies of this compound are starting to appear [10][11][12], and several equations of state based on empirical estimates [13] and on emerging experimental data [14,15] (E.W. Lemmon, personal communication, 2009) have been proposed.…”

Section: Introductionmentioning

confidence: 99%

Monte Carlo Simulation of Vapor–Liquid Equilibria for Perfluoropropane (R-218) and 2,3,3,3-Tetrafluoropropene (R-1234yf)

2010

View full text Add to dashboard Cite

show abstract

“…The cooling capacity of R1234yf used as a drop-in replacement in a HFC-134a refrigerant facility is about 3-12% lower than that presented by HFC-134a in the different range of operating condition [44][45][46]. This difference in the values of cooling capacity obtained with both refrigerants decreases when the condensing temperature decreases and when an IHX is used.…”

Section: Resultsmentioning

confidence: 81%

Thermodynamic Cycle Analysis of Mobile Air Conditioning System Using Hfo-1234yf as an Alternative Replacement of Hfc-134a

Gohel¹,

Kapadia²

2016

Adv Automob Eng

View full text Add to dashboard Cite

This paper presents thermodynamic cycle analysis of mobile air conditioning system using HFO1234yf as alternative replacement for HFC-134a. Under a wide range of working conditions (Varying Condensing temperature, Evaporating temperature, Sub cooling and sub heating with Internal heat exchanger (IHX) and without internal heat exchanger) on simple vapor compression system, we compare the energy performance of both refrigerants -R134a and HFO1234yf.Result shows that without using an Internal heat exchanger, At lower condensing temperature (35 o C), Mass flow rate increases about 27-32%, refrigerating effect decreases 22-25%, co mpressor work increases 4-6% and COP decreases about 3-5%.While at higher condensing temperature (55 o C), mass flow rate increases about 35-42%, refrigerating capacity decreases 27-30%, and compressor work increases 8-13% and COP decreases 7-10%.Using an internal heat exchanger (IHX), these differences in the energy performance are significantly reduced.At lower condensing temperature (35 o C), mass flow rate decreases about 18-22%, refrigerating capacity decreases 15-18%, compressor work increases 1-3% and COP decreases about 2-3% and At higher condensing temperature (55 o C), mass flow rate decreases 23-28%, refrigerating capacity decreases 18-22%, compressor work increases 5-8% and COP decreases about 4-7%.The energy performance parameters of HFO1234yf are close to those obtained with HFC-134a at Low condensing temperature and making use of an IHX. Even though the values of performance parameters for HFO1234yf are smaller than that of HFC-134a, but difference is small so it can be a good alternative to HFC-134a because of its environmental friendly properties with introducing IHX.

show abstract

“…The thermodynamic properties required for the calculations in this study were evaluated using equations of state [15,16,17,18,19] implemented in REFPROP® software [20].…”

Section: Cycle Calculationmentioning

confidence: 99%

Thermodynamic performance of new thermofluidic feed pumps for Organic Rankine Cycle applications

Richardson

2016

Applied Energy

View full text Add to dashboard Cite

This study develops thermofluidic pump technology that is powered by heat, rather than by electrical or mechanical power. The objective is to improve the performance of heat-recovery by Organic Rankine Cycles, by using a recently-proposed thermofluidic pump. The thermofluidic pump promises low-cost, high-reliability, and, since it does not consume any of the power produced by the expander, improved return on investment. No performance data for the new thermofluidic pump have been reported previously, therefore a thermodynamic model is derived and used to evaluate performance metrics that characterise pump operation and its impact on the overall cycle efficiency. Improved pump configurations are then developed and analysed. A two-stage pump configuration is presented that enhances the thermal efficiency of the cycle. An economiser is also proposed in order to obtain boiler efficiencies similar to those for mechanical feed pumps. It has been shown that the cycle efficiency with the two-stage pump is maximum when there is no net heat input in the intermediate evaporator. The resulting thermal efficiency exceeds the best-possible efficiency that is obtainable with an ideal mechanical pump. The relative improvement in cycle efficiency achieved with the two-stage thermofluidic pump is greatest for low-temperature cycles operating below 100°C, for which the back work ratio is usually higher and the efficiencies of electro-mechanical feed pumps are poorer -yielding a relative increase of the cycle efficiency by up to 30%.

show abstract

Thermodynamic Properties of 2,3,3,3-Tetrafluoroprop-1-ene (R1234yf): Vapor Pressure and p–ρ–T Measurements and an Equation of State

Cited by 209 publications

References 20 publications

Monte Carlo Simulation of Vapor–Liquid Equilibria for Perfluoropropane (R-218) and 2,3,3,3-Tetrafluoropropene (R-1234yf)

Monte Carlo Simulation of Vapor–Liquid Equilibria for Perfluoropropane (R-218) and 2,3,3,3-Tetrafluoropropene (R-1234yf)

Thermodynamic Cycle Analysis of Mobile Air Conditioning System Using Hfo-1234yf as an Alternative Replacement of Hfc-134a

Thermodynamic performance of new thermofluidic feed pumps for Organic Rankine Cycle applications

Contact Info

Product

Resources

About