573 lines
26 KiB
Plaintext
573 lines
26 KiB
Plaintext
R1234yf !Short name
|
||
754-12-1 !CAS number
|
||
2,3,3,3-Tetrafluoroprop-1-ene !Full name
|
||
CF3CF=CH2 !Chemical formula {C3F4H2}
|
||
R-1234yf !Synonym
|
||
114.0415928 !Molar mass [g/mol]
|
||
122.77 !Triple point temperature [K]; Minor B, Spatz M. HFO-1234yf low GWP refrigerant update. International refrigeration and air conditioning conference at Purdue, paper 2349, 14–17 July 2008, pp. 1–8.
|
||
243.665 !Normal boiling point [K]
|
||
367.85 !Critical temperature [K]
|
||
3382.2 !Critical pressure [kPa]
|
||
4.17 !Critical density [mol/L]
|
||
0.276 !Acentric factor
|
||
2.48 !Dipole moment [Debye]; Cousins and Laesecke, J. Research NIST, 117:231-256, 2012
|
||
IIR !Default reference state
|
||
10.0 !Version number
|
||
3161 !UN Number :UN:
|
||
halocb !Family :Family:
|
||
???? !Heating value (upper) [kJ/mol] :Heat:
|
||
???? !GWP (IPCC 2007) :GWP:
|
||
16000. !RCL (ppm v/v, ASHRAE Standard 34, 2010) :RCL:
|
||
A2L !Safety Group (ASHRAE Standard 34, 2010) :Safety:
|
||
1S/C3H2F4/c1-2(4)3(5,6)7/h1H2 !Standard InChI String :InChi:
|
||
FXRLMCRCYDHQFW-UHFFFAOYSA-N !Standard InChI Key :InChiKey:
|
||
9905ef70 (R1234ze(E)) !Alternative fluid for mixing rules :AltID:
|
||
40377b40 !Hash number from InChI Key :Hash:
|
||
|
||
|
||
|
||
|
||
!The fluid files contain general information about the fluid in the first 15 to 20 lines, followed by sections for the
|
||
! equations of state, transport equations, and auxiliary equations. Equations of state are listed first. The NIST recommended
|
||
! equations begin with a hash mark (#). The secondary equations begin with the @ symbol. These symbols can be swapped to
|
||
! select a secondary equation as primary and the primary as secondary. The equation of state section also contains auxiliary
|
||
! equations for the ideal gas heat capacity or ideal gas Helmholtz energy. Below the equations of state (both primary and
|
||
! secondary) are the transport equations, first viscosity and then thermal conductivity. These are then followed by the
|
||
! secondary equations if available. The transport section also contains auxiliary equations required to calculate either the
|
||
! dilute gas state or the critical enhancement. At the end of the file are additional but not necessary auxiliary equations,
|
||
! including simple equations for the vapor pressure, saturated liquid and vapor densities, melting line (for some fluids), and
|
||
! sublimation line (for even fewer fluids). This section also contains the equations for dielectric constant and surface
|
||
! tension if available. The sections are divided by different symbols (these being _-+=^*~) to aid the eye in locating a
|
||
! particular section. Secondary equations are indented 10 spaces to avoid confusion with the NIST recommended equations. The
|
||
! end of the fluid file is marked with @END. Anything below that is ignored.
|
||
|
||
|
||
! compiled by E.W. Lemmon, NIST Physical and Chemical Properties Division, Boulder, Colorado
|
||
! 03-23-09 EWL, Original version.
|
||
! 10-06-09 EWL, Add second preliminary fit with data of Di Nicola.
|
||
! 11-02-09 MLH, Add very preliminary transport equations.
|
||
! 01-05-10 EWL, Update fit with data of McLinden and Richter.
|
||
! 04-19-10 EWL, Add surface tension equation.
|
||
! 08-12-10 EWL, Update fit with speed of sound data of Lago.
|
||
! 09-01-10 EWL, Add ancillary equations.
|
||
! 09-01-10 MLH, Add new thermal conductivity correlation based on R. Perkin's new data.
|
||
! 12-02-11 EWL, Change reference state from NBP to IIR.
|
||
! 09-29-11 EWL, Add dipole moment.
|
||
! 05-17-12 MLH, Update thermal conductivity to match 2011 publication.
|
||
! 06-20-12 EWL, Add dipole moment.
|
||
! 12-06-12 EWL, Add surface tension coefficients of Mulero et al. (2012).
|
||
! 03-01-16 MLH, Add new viscosity fit.
|
||
! 07-26-17 EWL, Add real triple point temperature.
|
||
! 02-05-18 RA, Update ancillary equations.
|
||
|
||
|
||
|
||
|
||
________________________________________________________________________________
|
||
|
||
#EOS !---Equation of state---
|
||
FEQ !Helmholtz equation of state for R-1234yf of Richter et al. (2011).
|
||
:TRUECRITICALPOINT: 367.85 4.17 !True EOS critical point [K, mol/L] (where dP/dD=0 and d^2P/dD^2=0 at constant T)
|
||
:DOI: 10.1021/je200369m
|
||
?
|
||
?```````````````````````````````````````````````````````````````````````````````
|
||
?Richter, M., McLinden, M.O., and Lemmon, E.W.,
|
||
? "Thermodynamic Properties of 2,3,3,3-Tetrafluoroprop-1-ene (R1234yf):
|
||
? Vapor Pressure and p-rho-T Measurements and an Equation of State,"
|
||
? J. Chem. Eng. Data, 56(7):3254-3264, 2011. doi: 10.1021/je200369m
|
||
?
|
||
?The uncertainty in density in the liquid phase of the equation of state is
|
||
? 0.1% from 240 K to 320 K and pressures up to 10 MPa. The uncertainty
|
||
? increases outside of this region and in the vapor phase to 0.5%, and even
|
||
? higher in the critical region. In the gaseous region, the speed of sound can
|
||
? be calculated with an uncertainty of 0.1%. In the liquid phase, the
|
||
? uncertainty increases to 0.5%. The estimated uncertainty for heat capacities
|
||
? is 5%. The estimated uncertainty in vapor pressure is 0.1%.
|
||
?
|
||
!```````````````````````````````````````````````````````````````````````````````
|
||
122.77 !Lower temperature limit [K]
|
||
410.0 !Upper temperature limit [K]
|
||
30000.0 !Upper pressure limit [kPa]
|
||
13.685 !Maximum density [mol/L]
|
||
CPP !Pointer to Cp0 model
|
||
114.0415928 !Molar mass [g/mol]
|
||
122.77 !Triple point temperature [K]
|
||
0.000738 !Pressure at triple point [kPa]
|
||
13.685 !Density at triple point [mol/L]
|
||
243.665 !Normal boiling point temperature [K]
|
||
0.276 !Acentric factor
|
||
367.85 3382.2 4.17 !Tc [K], pc [kPa], rhoc [mol/L]
|
||
367.85 4.17 !Reducing parameters [K, mol/L]
|
||
8.314472 !Gas constant [J/mol-K]
|
||
10 4 5 12 0 0 0 0 0 0 0 0 !# terms and # coefs/term for normal terms, Gaussian terms, and Gao terms
|
||
0.04592563 1.0 4. 0. !a(i),t(i),d(i),l(i)
|
||
1.546958 0.32 1. 0.
|
||
-2.355237 0.929 1. 0.
|
||
-0.4827835 0.94 2. 0.
|
||
0.1758022 0.38 3. 0.
|
||
-1.210006 2.28 1. 2.
|
||
-0.6177084 1.76 3. 2.
|
||
0.6805262 0.97 2. 1.
|
||
-0.6968555 2.44 2. 2.
|
||
-0.02695779 1.05 7. 1.
|
||
1.389966 1.4 1. 2. 2. -1.02 -1.42 1.13 0.712 0. 0. 0.
|
||
-0.4777136 3.0 1. 2. 2. -1.336 -2.31 0.67 0.910 0. 0. 0.
|
||
-0.1975184 3.5 3. 2. 2. -1.055 -0.89 0.46 0.677 0. 0. 0.
|
||
-1.147646 1.0 3. 2. 2. -5.84 -80.0 1.28 0.718 0. 0. 0.
|
||
0.0003428541 3.5 2. 2. 2. -16.2 -108.0 1.2 1.64 0. 0. 0.
|
||
eta beta gamma epsilon
|
||
EXP[eta*(delta-epsilon)^2+beta*(tau-gamma)^2]
|
||
|
||
|
||
#AUX !---Auxiliary function for Cp0
|
||
CPP !Ideal gas heat capacity function for R-1234yf of Richter et al. (2011).
|
||
?
|
||
?```````````````````````````````````````````````````````````````````````````````
|
||
?Richter, M., McLinden, M.O., and Lemmon, E.W., 2011.
|
||
?
|
||
!```````````````````````````````````````````````````````````````````````````````
|
||
0. !
|
||
10000. !
|
||
0. !
|
||
0. !
|
||
1.0 8.314472 !Reducing parameters for T, Cp0
|
||
1 4 0 0 0 0 0 !Nterms: polynomial, exponential, cosh, sinh
|
||
5.944 0.0
|
||
7.549 718.0
|
||
1.537 877.0
|
||
2.03 4465.0
|
||
7.455 1755.0
|
||
|
||
|
||
#AUX !---Auxiliary function for PX0
|
||
PX0 !Helmholtz energy ideal-gas function for R-1234yf of Richter et al. (2011).
|
||
?
|
||
?```````````````````````````````````````````````````````````````````````````````
|
||
?Richter, M., McLinden, M.O., and Lemmon, E.W., 2011.
|
||
?
|
||
!```````````````````````````````````````````````````````````````````````````````
|
||
1 2 4 0 0 0 0 0 !Nterms: ai*log(tau**ti); ai*tau**ti; ai*log(1-exp(bi*tau))
|
||
4.944 1.0 !ai, ti for [ai*log(tau**ti)] terms
|
||
-12.8379485300797782 0.0 !aj, ti for [ai*tau**ti] terms
|
||
8.0426156173728476 1.0 !aj, ti for [ai*tau**ti] terms
|
||
7.549 718.0 !aj, ti for [ai*log(1-exp(-ti/T)] terms
|
||
1.537 877.0
|
||
2.03 4465.0
|
||
7.455 1755.0
|
||
|
||
|
||
#AUX !---Auxiliary function for PH0
|
||
PH0 !Ideal gas Helmholtz form for R-1234yf of Richter et al. (2011)
|
||
?
|
||
?```````````````````````````````````````````````````````````````````````````````
|
||
?
|
||
!```````````````````````````````````````````````````````````````````````````````
|
||
0. !
|
||
10000. !
|
||
0. !
|
||
0. !
|
||
1 2 4 0 0 0 0 0 !Nterms: ai*log(tau**ti); ai*tau**ti; ai*log(1-exp(bi*tau)); cosh; sinh
|
||
4.944 1.0 !ai, ti for [ai*log(tau**ti)] terms
|
||
-12.8379284042 0.0 !aj, ti for [ai*tau**ti] terms
|
||
8.0426046749 1.0
|
||
7.549 -1.9518825608 !aj, ti for [ai*log(1-exp(ti*tau)] terms
|
||
1.537 -2.3841239636
|
||
2.03 -12.1380997689
|
||
7.455 -4.7709664265
|
||
|
||
|
||
|
||
|
||
--------------------------------------------------------------------------------
|
||
|
||
@EOS !---Equation of state---
|
||
FE1 !Helmholtz equation of state for R-1234yf of Akasaka (2011).
|
||
?
|
||
?```````````````````````````````````````````````````````````````````````````````
|
||
?Akasaka, R.,
|
||
? "New Fundamental Equations of State with a Common Functional Form for
|
||
? 2,3,3,3-Tetrafluoropropene (R-1234yf) and Trans-1,3,3,3-Tetrafluoropropene
|
||
? (R-1234ze(E)),"
|
||
? Int. J. Thermophys.,32(6):1125-1147 (2011) doi: 10.1007/s10765-011-0992-0
|
||
?
|
||
!```````````````````````````````````````````````````````````````````````````````
|
||
240. !Lower temperature limit [K]
|
||
400.0 !Upper temperature limit [K]
|
||
40000.0 !Upper pressure limit [kPa]
|
||
11.64 !Maximum density [mol/L]
|
||
CP1 !Pointer to Cp0 model
|
||
114.042 !Molar mass [g/mol]
|
||
220. !Triple point temperature [K]
|
||
31.5 !Pressure at triple point [kPa]
|
||
11.63 !Density at triple point [mol/L]
|
||
243.7 !Normal boiling point temperature [K]
|
||
0.276 !Acentric factor
|
||
367.85 3382.0 4.191438242 !Tc [K], pc [kPa], rhoc [mol/L]
|
||
367.85 4.191438242 !Reducing parameters [K, mol/L]
|
||
8.314472 !Gas constant [J/mol-K]
|
||
17 4 0 0 0 0 0 0 0 0 0 0 !# terms and # coefs/term for normal terms, Gaussian terms, and Gao terms
|
||
8.3266757 0.66886 1. 0. !a(i),t(i),d(i),l(i)
|
||
-9.2588001 0.83392 1. 0.
|
||
-0.24906043 1.6982 1. 0.
|
||
0.14422208 1.8030 2. 0.
|
||
0.011679917 0.36657 5. 0.
|
||
-0.16465103 3.8666 1. 1.
|
||
0.10580795 1.0194 3. 1.
|
||
0.017135586 0.0 5. 1.
|
||
-0.016764798 1.1655 7. 1.
|
||
-0.012781115 8.3101 1. 2.
|
||
0.36440802 6.1459 2. 2.
|
||
-0.28535370 8.3495 2. 2.
|
||
-0.096835199 6.0422 3. 2.
|
||
0.088063705 7.444 4. 2.
|
||
0.018736343 15.433 2. 3.
|
||
-0.016872191 21.543 3. 3.
|
||
0.0070032274 15.499 5. 3.
|
||
|
||
|
||
@AUX !---Auxiliary function for Cp0
|
||
CP1 !Ideal gas heat capacity function for R-1234yf.
|
||
?
|
||
?```````````````````````````````````````````````````````````````````````````````
|
||
?Akasaka, R.,
|
||
?
|
||
!```````````````````````````````````````````````````````````````````````````````
|
||
0. !
|
||
10000. !
|
||
0. !
|
||
0. !
|
||
1.0 8.314472 !Reducing parameters for T, Cp0
|
||
1 3 0 0 0 0 0 !Nterms: polynomial, exponential, cosh, sinh
|
||
4.0 0.0
|
||
5.2829 354.0
|
||
6.96022 965.0
|
||
7.04266 1981.0
|
||
|
||
|
||
|
||
|
||
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
||
|
||
#ETA !---Viscosity---
|
||
VS7 !Pure fluid viscosity model for R-1234yf of Huber and Assael (2016).
|
||
:DOI: 10.1016/j.ijrefrig.2016.08.007
|
||
?
|
||
?```````````````````````````````````````````````````````````````````````````````
|
||
?Huber, M.L. and Assael, M.J.,
|
||
? "Correlations for the Viscosity of 2,3,3,3-Tetrafluoroprop-1-ene (R1234yf)
|
||
? and trans-1,2,2,2-Tetrafluoropropene (R1234ze(E)),"
|
||
? Int. J. Refrig., 71:39-45, 2016.
|
||
? doi: 10.1016/j.ijrefrig.2016.08.007
|
||
?
|
||
?The estimated uncertainty for the dilute gas region is 3%, for the liquid phase at pressures to 30 MPa is 3.5%.
|
||
?
|
||
!```````````````````````````````````````````````````````````````````````````````
|
||
220.0 !Lower temperature limit [K]
|
||
410.0 !Upper temperature limit [K]
|
||
30000.0 !Upper pressure limit [kPa]
|
||
12.0 !Maximum density [mol/L]
|
||
NUL !Omega model
|
||
!
|
||
!Dilute gas function
|
||
$DG SUM:4 SUM:3 /
|
||
!
|
||
!Second viscosity virial function
|
||
$VV RED SUM:9
|
||
!
|
||
!Residual function
|
||
$RF RED SUMDTHRD:4 SUM:2 /
|
||
!
|
||
!Coefficients
|
||
$CF
|
||
-836950.0 0. 0. 0. 0 !Dilute gas terms
|
||
6336.28 1. 0. 0. 0 !Coefficient, power in T
|
||
-2.3547 2. 0. 0. 0
|
||
0.0395563 3. 0. 0. 0
|
||
39509.1 0. 0. 0. 0
|
||
121.018 1. 0. 0. 0
|
||
1.0 2. 0. 0. 0
|
||
!Virial terms
|
||
0.090164213 275. 1. 0. 0 !Reducing parameters for eta, T (= eps/k), rho, etaB2 (= 0.6022137*sigma**3)
|
||
-19.572881 0. 0. 0. 0 !Coefficient, power in T* = T/(eps/k)
|
||
219.73999 -0.25 0. 0. 0
|
||
-1015.3226 -0.5 0. 0. 0
|
||
2471.01251 -0.75 0. 0. 0
|
||
-3375.1717 -1. 0. 0. 0
|
||
2491.6597 -1.25 0. 0. 0
|
||
-787.26086 -1.5 0. 0. 0
|
||
14.085455 -2.5 0. 0. 0
|
||
-0.34664158 -5.5 0. 0. 0
|
||
!Background gas function
|
||
1.0 367.85 4.17 0. 0 !Reducing parameters for eta, T, rho
|
||
0.68706100665 1.5 2. 0. 0
|
||
7.1608477411 1.5 5. 0. 0
|
||
-2.079577245 1.5 8. 0. 0
|
||
-43.47027288 0.5 5. 0. 0
|
||
-3.53682791 1.0 0. 0. 0
|
||
1.0 1.0 1. 0. 0
|
||
NUL !Pointer to the viscosity critical enhancement auxiliary function (none used)
|
||
|
||
|
||
|
||
|
||
================================================================================
|
||
|
||
#TCX !---Thermal conductivity---
|
||
TC1 !Pure fluid thermal conductivity model for R-1234yf of Perkins and Huber (2011).
|
||
:DOI: 10.1021/je200811n
|
||
?
|
||
?```````````````````````````````````````````````````````````````````````````````
|
||
?Perkins, R.A. and Huber, M.L.,
|
||
? "Measurement and Correlation of the Thermal Conductivity of
|
||
? 2,3,3,3-Tetrafluoroprop-1-ene (R1234yf) and trans-1,3,3,3-Tetrafluoropeopene (R1234ze),"
|
||
? J. Chem. Eng. Data, 56(12):4868-4874, 2011. doi: 10.1021/je200811n
|
||
?
|
||
?The estimated uncertainty of the correlation is 1 % for the liquid phase,
|
||
? and 3 % for the vapor at pressures less than 1 MPa, larger in the critical region.
|
||
?
|
||
!```````````````````````````````````````````````````````````````````````````````
|
||
220. !Lower temperature limit [K]
|
||
410.0 !Upper temperature limit [K]
|
||
30000.0 !Upper pressure limit [kPa]
|
||
12. !Maximum density [mol/L]
|
||
4 0 !# terms for dilute gas function: numerator, denominator
|
||
367.85 1.0 !Reducing parameters for T, tcx
|
||
-0.0102778 0. !Coefficient, power in T
|
||
0.0291098 1.
|
||
0.000860643 2.
|
||
0.0 3.
|
||
10 0 !# terms for background gas function: numerator, denominator
|
||
367.85 4.17 1. !Reducing parameters for T, rho, tcx
|
||
-0.0368219 0. 1. 0. !Coefficient, powers of T, rho, spare for future use
|
||
0.0883226 0. 2. 0.
|
||
-0.0705909 0. 3. 0.
|
||
0.0259026 0. 4. 0.
|
||
-0.0032295 0. 5. 0.
|
||
0.0397166 1. 1. 0.
|
||
-0.077239 1. 2. 0.
|
||
0.0664707 1. 3. 0.
|
||
-0.0249071 1. 4. 0.
|
||
0.00336228 1. 5. 0.
|
||
TK3 !Pointer to critical enhancement auxiliary function
|
||
|
||
|
||
#AUX !---Auxiliary function for the thermal conductivity critical enhancement
|
||
TK3 !Simplified thermal conductivity critical enhancement for R-1234yf of Perkins and Huber (2011).
|
||
?
|
||
?```````````````````````````````````````````````````````````````````````````````
|
||
?Perkins, R.A. and Huber, M.L.,
|
||
? "Measurement and Correlation of the Thermal Conductivity of
|
||
? 2,3,3,3-Tetrafluoroprop-1-ene (R1234yf) and trans-1,3,3,3-Tetrafluoropeopene (R1234ze),"
|
||
? J. Chem. Eng. Data, 56(12):4868-4874, 2011. doi: 10.1021/je200811n
|
||
?
|
||
!```````````````````````````````````````````````````````````````````````````````
|
||
0. !
|
||
10000. !
|
||
0. !
|
||
0. !
|
||
9 0 0 0 !# terms: CO2-terms, spare, spare, spare
|
||
1.0 1.0 1.0 !Reducing parameters for T, rho, tcx [mW/(m-K)]
|
||
0.63 !Nu (universal exponent)
|
||
1.239 !Gamma (universal exponent)
|
||
1.03 !R0 (universal amplitude)
|
||
0.063 !Z (universal exponent--not used for t.c., only viscosity)
|
||
1.0 !C (constant in viscosity eqn = 1/[2 - (alpha + gamma)/(2*nu)], but often set to 1)
|
||
0.194e-9 !Xi0 (amplitude) [m]
|
||
0.0496 !Gam0 (amplitude) [-]
|
||
5.835e-10 !Qd_inverse (modified effective cutoff parameter) [m]; R125 value
|
||
551.775 !Tref (reference temperature)=1.5*Tc [K]
|
||
|
||
|
||
|
||
|
||
********************************************************************************
|
||
|
||
@TCX !---Thermal conductivity---
|
||
TC5 !Pure fluid thermal conductivity model for R-1234yf of Chung et al. (1988).
|
||
?
|
||
?```````````````````````````````````````````````````````````````````````````````
|
||
?Chung, T-H., Ajlan, M., Lee, L.L. and Starling, K.E.
|
||
? "Generalized Multiparameter Correlation for Nonpolar and Polar Fluid Transport Properties"
|
||
? Ind. Eng. Chem. Res. 1988, 27, 671-679.
|
||
?
|
||
!```````````````````````````````````````````````````````````````````````````````
|
||
220. !Lower temperature limit [K]
|
||
420. !Upper temperature limit [K]
|
||
20000. !Upper pressure limit [kPa]
|
||
11.64 !Maximum density [mol/L]
|
||
0.50 !Lennard-Jones coefficient sigma [nm] =0.809vc*(1/3)A
|
||
292.1 !Lennard-Jones coefficient epsilon/kappa [K] =Tc/1.2593
|
||
0.276 0. 0. !w, mur, kappa for Chung
|
||
0 !Additional parameters for Chung
|
||
TK3 !Pointer to critical enhancement auxiliary function
|
||
|
||
|
||
@ETA !---Viscosity---
|
||
VS5 !Pure fluid viscosity model for R-1234yf of Chung et al. (1988).
|
||
?
|
||
?```````````````````````````````````````````````````````````````````````````````
|
||
?Uses functional form in
|
||
? Chung, T-H., Ajlan, M., Lee, L.L. and Starling, K.E.
|
||
? "Generalized Multiparameter Correlation for Nonpolar and Polar Fluid Transport Properties"
|
||
? Ind. Eng. Chem. Res. 1998, 27, 671-679.
|
||
?
|
||
!```````````````````````````````````````````````````````````````````````````````
|
||
168.62 !Lower temperature limit [K]
|
||
420.0 !Upper temperature limit [K]
|
||
20000.0 !Upper pressure limit [kPa]
|
||
13.20 !Maximum density [mol/L]
|
||
1 !Number of terms associated with dilute-gas function
|
||
NUL !Pointer to reduced effective collision cross-section model; not used
|
||
0.5025 !Lennard-Jones coefficient sigma [nm] =0.809vc*(1/3)A
|
||
292.107 !Lennard-Jones coefficient epsilon/kappa [K] =Tc/1.2593
|
||
1.0 1.0 !Reducing parameters for T, eta
|
||
0.22807 0.5 !=0.021357*SQRT(MW) [Chapman-Enskog term]
|
||
0 !Number of terms for initial density dependence
|
||
0.276 1.1361 0.0 0. 0 !w, mur, kappa for Chung, fit
|
||
0 !Additional parameters for Chung
|
||
NUL !Pointer to the viscosity critical enhancement auxiliary function (none used)
|
||
|
||
|
||
|
||
|
||
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
|
||
|
||
@TRN !---ECS Transport---
|
||
ECS !Extended Corresponding States model (R134a reference) for R-1234yf.
|
||
?
|
||
?```````````````````````````````````````````````````````````````````````````````
|
||
?*** ESTIMATION METHOD *** NOT STANDARD REFERENCE QUALITY ***
|
||
?Unpublished; uses method described in the following reference:
|
||
?Huber, M.L., Laesecke, A., and Perkins, R.A.
|
||
? "Model for the Viscosity and Thermal Conductivity of Refrigerants, Including
|
||
? a New Correlation for the Viscosity of R134a,"
|
||
? Ind. Eng. Chem. Res., 42(13):3163-3178, 2003. doi: 10.1021/ie0300880
|
||
?
|
||
?*** Limited or no experimental data were available for analysis ***
|
||
?
|
||
?Estimated uncertainty for viscosity is 10% based on comparisons with
|
||
? Hulse, R., Singh, R., Pham, H., "Physical Properties of HFO-1234yf", paper presented at 17th Symp. Thermophysical Properties, Boulder CO June 2009
|
||
?
|
||
?No data for thermal conductivity was found. Based on family comparisons,
|
||
? the estimated uncertainty for ECS estimation model is 20%
|
||
?
|
||
?The Lennard-Jones parameters were taken from Arakawa
|
||
?
|
||
!```````````````````````````````````````````````````````````````````````````````
|
||
220.0 !Lower temperature limit [K]
|
||
410.0 !Upper temperature limit [K]
|
||
30000.0 !Upper pressure limit [kPa]
|
||
11.64 !Maximum density [mol/L]
|
||
FEQ R134A.FLD
|
||
VS1 !Model for reference fluid viscosity
|
||
TC1 !Model for reference fluid thermal conductivity
|
||
NUL !Large molecule identifier
|
||
1 !Lennard-Jones flag (0 or 1) (0 => use estimates)
|
||
0.5328 !Lennard-Jones coefficient sigma [nm]
|
||
281.14 !Lennard-Jones coefficient epsilon/kappa [K]
|
||
1 0 0 !Number of terms in f_int term in Eucken correlation, spare1, spare2
|
||
0.00132 0. 0. 0. !Coefficient, power of T, spare1, spare2
|
||
3 0 0 !Number of terms in psi (visc shape factor): poly,spare1,spare2
|
||
1.1998 0. 0. 0. !Coefficient, power of Tr, power of Dr, spare
|
||
-0.18137 0. 1. 0. !Coefficient, power of Tr, power of Dr, spare
|
||
0.03851 0. 2. 0. !Coefficient, power of Tr, power of Dr, spare
|
||
1 0 0 !Number of terms in chi (t.c. shape factor): poly,spare1,spare2
|
||
1.0 0. 0. 0. !Coefficient, power of Tr, power of Dr, spare
|
||
TK3 !Pointer to critical enhancement auxiliary function
|
||
|
||
|
||
|
||
|
||
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
||
|
||
#STN !---Surface tension---
|
||
ST1 !Surface tension model for R-1234yf of Mulero et al. (2012).
|
||
:DOI: 10.1063/1.4768782
|
||
?
|
||
?```````````````````````````````````````````````````````````````````````````````
|
||
?Mulero, A., Cachadiña, I., and Parra, M.I.,
|
||
? "Recommended Correlations for the Surface Tension of Common Fluids,"
|
||
? J. Phys. Chem. Ref. Data, 41(4), 043105, 2012. doi: 10.1063/1.4768782
|
||
?
|
||
!```````````````````````````````````````````````````````````````````````````````
|
||
0. !
|
||
10000. !
|
||
0. !
|
||
0. !
|
||
1 !Number of terms in surface tension model
|
||
367.85 !Critical temperature used in fit (dummy)
|
||
0.06274 1.394 !Sigma0 and n
|
||
|
||
|
||
#PS !---Vapor pressure---
|
||
PS5 !Vapor pressure equation for R-1234yf of Akasaka (2018).
|
||
?
|
||
?```````````````````````````````````````````````````````````````````````````````
|
||
?Akasaka, R., 2018.
|
||
?
|
||
?Functional Form: P=Pc*EXP[SUM(Ni*Theta^ti)*Tc/T] where Theta=1-T/Tc, Tc and Pc
|
||
? are the reducing parameters below, which are followed by rows containing Ni and ti.
|
||
?
|
||
!```````````````````````````````````````````````````````````````````````````````
|
||
0. !
|
||
10000. !
|
||
0. !
|
||
0. !
|
||
367.85 3382.2 !Reducing parameters
|
||
4 0 0 0 0 0 !Number of terms in equation
|
||
-7.4271 1.0
|
||
2.1072 1.5
|
||
-1.6539 2.0
|
||
-2.8394 3.9
|
||
|
||
|
||
#DL !---Saturated liquid density---
|
||
DL1 !Saturated liquid density equation for R-1234yf of Akasaka (2018).
|
||
?
|
||
?```````````````````````````````````````````````````````````````````````````````
|
||
?Akasaka, R., 2018.
|
||
?
|
||
?Functional Form: D=Dc*[1+SUM(Ni*Theta^ti)] where Theta=1-T/Tc, Tc and Dc are
|
||
? the reducing parameters below, which are followed by rows containing Ni and ti.
|
||
?
|
||
!```````````````````````````````````````````````````````````````````````````````
|
||
0. !
|
||
10000. !
|
||
0. !
|
||
0. !
|
||
367.85 4.17 !Reducing parameters
|
||
5 0 0 0 0 0 !Number of terms in equation
|
||
0.14328 0.11
|
||
2.1007 0.41
|
||
0.48993 0.71
|
||
-0.26122 1.0
|
||
0.39037 2.0
|
||
|
||
|
||
#DV !---Saturated vapor density---
|
||
DV3 !Saturated vapor density equation for R-1234yf of Akasaka (2018).
|
||
?
|
||
?```````````````````````````````````````````````````````````````````````````````
|
||
?Akasaka, R., 2018.
|
||
?
|
||
?Functional Form: D=Dc*EXP[SUM(Ni*Theta^ti)] where Theta=1-T/Tc, Tc and Dc are
|
||
? the reducing parameters below, which are followed by rows containing Ni and ti.
|
||
?
|
||
!```````````````````````````````````````````````````````````````````````````````
|
||
0. !
|
||
10000. !
|
||
0. !
|
||
0. !
|
||
367.85 4.17 !Reducing parameters
|
||
5 0 0 0 0 0 !Number of terms in equation
|
||
-2.3105 0.352
|
||
-5.5677 1.0
|
||
-13.329 2.58
|
||
-38.743 5.4
|
||
-80.865 11.2
|
||
|
||
|
||
@END
|
||
c 1 2 3 4 5 6 7 8
|
||
c2345678901234567890123456789012345678901234567890123456789012345678901234567890
|