687 lines
33 KiB
Plaintext
687 lines
33 KiB
Plaintext
R23 !Short name
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75-46-7 !CAS number
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Trifluoromethane !Full name
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CHF3 !Chemical formula {CHF3}
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HFC-23 !Synonym
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70.01385 !Molar mass [g/mol]
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118.02 !Triple point temperature [K]
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191.132 !Normal boiling point [K]
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299.293 !Critical temperature [K]
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4832.0 !Critical pressure [kPa]
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7.52 !Critical density [mol/L]
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0.263 !Acentric factor
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1.649 !Dipole moment [Debye]; value from REFPROP v5.0
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IIR !Default reference state
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10.0 !Version number
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1984 !UN Number :UN:
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halocb !Family :Family:
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???? !Heating value (upper) [kJ/mol] :Heat:
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14800. !GWP (IPCC 2007) :GWP:
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41000. !RCL (ppm v/v, ASHRAE Standard 34, 2010) :RCL:
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A1 !Safety Group (ASHRAE Standard 34, 2010) :Safety:
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1S/CHF3/c2-1(3)4/h1H !Standard InChI String :InChi:
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XPDWGBQVDMORPB-UHFFFAOYSA-N !Standard InChI Key :InChiKey:
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???? !Alternative fluid for mixing rules :AltID:
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20e26c20 !Hash number from InChI Key :Hash:
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!The fluid files contain general information about the fluid in the first 15 to 20 lines, followed by sections for the
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! equations of state, transport equations, and auxiliary equations. Equations of state are listed first. The NIST recommended
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! equations begin with a hash mark (#). The secondary equations begin with the @ symbol. These symbols can be swapped to
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! select a secondary equation as primary and the primary as secondary. The equation of state section also contains auxiliary
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! equations for the ideal gas heat capacity or ideal gas Helmholtz energy. Below the equations of state (both primary and
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! secondary) are the transport equations, first viscosity and then thermal conductivity. These are then followed by the
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! secondary equations if available. The transport section also contains auxiliary equations required to calculate either the
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! dilute gas state or the critical enhancement. At the end of the file are additional but not necessary auxiliary equations,
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! including simple equations for the vapor pressure, saturated liquid and vapor densities, melting line (for some fluids), and
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! sublimation line (for even fewer fluids). This section also contains the equations for dielectric constant and surface
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! tension if available. The sections are divided by different symbols (these being _-+=^*~) to aid the eye in locating a
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! particular section. Secondary equations are indented 10 spaces to avoid confusion with the NIST recommended equations. The
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! end of the fluid file is marked with @END. Anything below that is ignored.
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! compiled by E.W. Lemmon, NIST Physical and Chemical Properties Division, Boulder, Colorado
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! 09-12-96 EWL, Original version.
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! 11-13-97 EWL, Add Platzer equation.
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! 07-13-99 MM, Add EOS of Penoncello et al.
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! 11-01-00 EWL, Add transport equations of Shan.
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! 03-21-02 MLH, Add LJ parameters from Shan to ECS model.
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! 06-27-02 EWL, Add final equation of state of Penoncello.
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! 12-06-12 EWL, Add surface tension coefficients of Mulero et al. (2012).
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! 05-15-17 EWL, Change the hard coded VS0 model to the VS7 reverse Polish notation.
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________________________________________________________________________________
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#EOS !---Equation of state---
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FEQ !Helmholtz equation of state for R-23 of Penoncello et al. (2003).
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:TRUECRITICALPOINT: 299.293 7.52 !True EOS critical point [K, mol/L] (where dP/dD=0 and d^2P/dD^2=0 at constant T)
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:DOI: 10.1063/1.1559671
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?
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?```````````````````````````````````````````````````````````````````````````````
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?Penoncello, S.G., Lemmon, E.W., Jacobsen, R.T, and Shan, Z.,
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? "A Fundamental Equation for Triflurormethane (R-23),"
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? J. Phys. Chem. Ref. Data, 32(4):1473-1499, 2003. doi: 10.1063/1.1559671
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?
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?The uncertainties of the equation of state are 0.1% in density, 0.5% in
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? heat capacities and speed of sound, and 0.2% in vapor pressures.
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? Uncertainties in the critical region will be higher.
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?
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!```````````````````````````````````````````````````````````````````````````````
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118.02 !Lower temperature limit [K]
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475.0 !Upper temperature limit [K]
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120000.0 !Upper pressure limit [kPa]
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24.31 !Maximum density [mol/L]
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CPP !Pointer to Cp0 model
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70.01385 !Molar mass [g/mol]
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118.02 !Triple point temperature [K]
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0.05804 !Pressure at triple point [kPa]
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24.31 !Density at triple point [mol/L]
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191.132 !Normal boiling point temperature [K]
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0.263 !Acentric factor
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299.293 4832.0 7.52 !Tc [K], pc [kPa], rhoc [mol/L]
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299.293 7.52 !Reducing parameters [K, mol/L]
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8.314472 !Gas constant [J/mol-K]
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17 4 0 0 0 0 0 0 0 0 0 0 !# terms and # coefs/term for normal terms, Gaussian terms, and Gao terms
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7.041529 0.744 1. 0. !a(i),t(i),d(i),l(i)
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-8.259512 0.94 1. 0.
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0.00805304 4.3 1. 0.
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-0.08617615 1.46 2. 0.
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0.00633341 0.68 5. 0.
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-0.1863285 4.8 1. 1.
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0.3280510 1.5 2. 1.
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0.5191023 2.07 3. 1.
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0.06916144 0.09 5. 1.
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-0.005045875 9.6 1. 2.
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-0.01744221 0.19 2. 2.
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-0.05003972 11.2 2. 2.
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0.04729813 0.27 4. 2.
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-0.06164031 1.6 4. 2.
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0.01583585 10.3 4. 2.
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-0.00179579 14.0 2. 3.
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-0.001099007 15.0 2. 4.
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#AUX !---Auxiliary function for Cp0
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CPP !Ideal gas heat capacity function for R-23 of Penoncello et al. (2003).
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?
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?```````````````````````````````````````````````````````````````````````````````
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?Penoncello, S.G., Lemmon, E.W., Jacobsen, R.T, and Shan, Z., 2003.
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?
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!```````````````````````````````````````````````````````````````````````````````
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0. !
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10000. !
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0. !
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0. !
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1.0 8.314472 !Reducing parameters for T, Cp0
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1 4 0 0 0 0 0 !Nterms: polynomial, exponential, cosh, sinh
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3.999 0.0
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2.371 744.0
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3.237 1459.0
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2.61 2135.0
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0.8274 4911.0
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#AUX !---Auxiliary function for PX0
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PX0 !Helmholtz energy ideal-gas function for R-23 of Penoncello et al. (2003).
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?
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?```````````````````````````````````````````````````````````````````````````````
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?Penoncello, S.G., Lemmon, E.W., Jacobsen, R.T, and Shan, Z., 2003.
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?
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!```````````````````````````````````````````````````````````````````````````````
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1 2 4 0 0 0 0 0 !Nterms: ai*log(tau**ti); ai*tau**ti; ai*log(1-exp(bi*tau))
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2.999 1.0 !ai, ti for [ai*log(tau**ti)] terms
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-8.3138729985195088 0.0 !aj, ti for [ai*tau**ti] terms
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6.5508807867641732 1.0 !aj, ti for [ai*tau**ti] terms
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2.371 744.0 !aj, ti for [ai*log(1-exp(-ti/T)] terms
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3.237 1459.0
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2.61 2135.0
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0.8274 4911.0
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#AUX !---Auxiliary function for PH0
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PH0 !Ideal gas Helmholtz form for R-23.
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?
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?```````````````````````````````````````````````````````````````````````````````
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?Penoncello, S.G., Lemmon, E.W., Jacobsen, R.T, and Shan, Z., 2003.
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?
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!```````````````````````````````````````````````````````````````````````````````
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0. !
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10000. !
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0. !
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0. !
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1 2 4 0 0 0 0 0 !Nterms: ai*log(tau**ti); ai*tau**ti; ai*log(1-exp(bi*tau)); cosh; sinh
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2.999 1.0 !ai, ti for [ai*log(tau**ti)] terms
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-8.3138606426 0.0 !aj, ti for [ai*tau**ti] terms
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6.55087253 1.0
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2.371 -2.4858583395 !aj, ti for [ai*log(1-exp(ti*tau)] terms
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3.237 -4.8748216631
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2.61 -7.1334778962
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0.8274 -16.4086697651
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--------------------------------------------------------------------------------
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@EOS !---Equation of state---
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FE1 !Helmholtz equation of state for R-23 of Penoncello et al. (2000).
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?
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?```````````````````````````````````````````````````````````````````````````````
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?Penoncello, S.G., Shan, Z., and Jacobsen, R.T,
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? "A fundamental equation for the calculation of the thermodynamic properties
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? of trifluoromethane (R23),"
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? ASHRAE Trans. 106(Part 1), 2000.
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?
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!```````````````````````````````````````````````````````````````````````````````
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158.02 !Lower temperature limit [K]
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473.15 !Upper temperature limit [K]
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120000.0 !Upper pressure limit [kPa]
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23.0 !Maximum density [mol/L]
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CP1 !Pointer to Cp0 model
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70.014 !Molar mass [g/mol]
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158.02 !Triple point temperature [K]
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0.05888 !Pressure at triple point [kPa]
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22.851535 !Density at triple point [mol/L]
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191.054 !Normal boiling point temperature [K]
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0.264 !Acentric factor
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299.28 4827.3 7.5114 !Tc [K], pc [kPa], rhoc [mol/L]
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299.28 7.5114 !Reducing parameters [K, mol/L]
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8.31451 !Gas constant [J/mol-K]
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27 4 0 0 0 0 0 0 0 0 0 0 !# terms and # coefs/term for normal terms, Gaussian terms, and Gao terms
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0.350093635099 -0.14 1. 0. !a(i),t(i),d(i),l(i)
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-1.31185838025 1.49 1. 0.
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-0.254118065769 2.41 1. 0.
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0.104275296122 0.05 2. 0.
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-0.205326997924 1.59 2. 0.
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0.25604099375 2.04 2. 0.
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0.0118078220087 -0.27 3. 0.
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0.000532850915621 2.76 4. 0.
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0.000956700157221 -0.06 6. 0.
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-0.118990410423e-5 3.25 8. 0.
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-0.180609172794 5.36 1. 2.
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0.138077199166 5.28 2. 2.
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0.0507828500811 4.23 2. 2.
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0.0439772083175 3.35 3. 2.
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-0.0723557234469 6.93 3. 2.
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0.00256500006055 8.48 6. 2.
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0.0263213487134 6.01 6. 2.
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0.0139266509424 3.34 7. 2.
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-0.0105325247813 7.1 7. 2.
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0.001364756715 5.46 10. 2.
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-0.00592653649931 16.06 2. 4.
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-0.0644925101471 19.37 3. 4.
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-0.022763518671 10.81 4. 4.
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0.122367812706 22.79 4. 4.
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0.0318153208563 34.95 5. 4.
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0.0146725272055 9.94 5. 4.
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-0.0923639585566 29.16 5. 4.
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@AUX !---Auxiliary function for Cp0
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CP1 !Ideal gas heat capacity function for R-23 of Penoncello et al. (2000).
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?
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?```````````````````````````````````````````````````````````````````````````````
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?Penoncello, S.G., Shan, Z., and Jacobsen, R.T,
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?
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!```````````````````````````````````````````````````````````````````````````````
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0. !
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10000. !
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0. !
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0. !
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1.0 8.31451 !Reducing parameters for T, Cp0
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1 6 0 0 0 0 0 !Nterms: polynomial, exponential, cosh, sinh
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3.999509244 0.0 ! = N1
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1.070326018 4368.102594 ! = N2, theta(2)
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1.566866769 1607.10494
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0.848051597 1007.138279
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1.847243699 1973.991027
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1.64965753 1657.461854
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2.04396529 729.455868
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@EOS !---Equation of state---
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FE3 !Bender equation of state for R-23 of Platzer et al. (1990).
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?
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?```````````````````````````````````````````````````````````````````````````````
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?Platzer, B., Polt, A., and Maurer, G.,
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? "Thermophysical properties of refrigerants,"
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? Berlin, Springer-Verlag, 1990.
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?
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!```````````````````````````````````````````````````````````````````````````````
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190.0 !Lower temperature limit [K]
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475.0 !Upper temperature limit [K]
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60000.0 !Upper pressure limit [kPa]
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16.65 !Maximum density [mol/L]
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CP3 !Pointer to Cp0 model
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70.014 !Molar mass [g/mol]
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145.0 !Triple point temperature [K]
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2.5664104 !Pressure at triple point [kPa]
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22.851535 !Density at triple point [mol/L]
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191.054 !Normal boiling point temperature [K]
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0.264 !Acentric factor
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299.01 4816.2 7.42656 !Tc [K], pc [kPa], rhoc [mol/L]
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299.01 7.42656 !Reducing parameters [K, mol/L]
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8.31451 !Gas constant [J/mol-K]
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22 5 0 0 0 0 0 0 0 0 0 0 !# terms and # coefs/term for normal terms, Gaussian terms, and Gao terms
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-1.33234251368 3. 0. 0. 0. !a(i),t(i),d(i),l(i)
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2.10373595421 4. 0. 0. 0.
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-0.37619872803 5. 0. 0. 0.
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0.881622087335 0. 1. 0. 0.
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-2.72053790906 1. 1. 0. 0.
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2.47468024356 2. 1. 0. 0.
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-2.34010064393 3. 1. 0. 0.
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0.303959507238 4. 1. 0. 0.
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0.0317372750273 0. 2. 0. 0.
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0.0329392142221 1. 2. 0. 0.
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0.20583853186 2. 2. 0. 0.
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0.133550139894 0. 3. 0. 0.
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-0.181698216766 1. 3. 0. 0.
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-0.0245123269882 0. 4. 0. 0.
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0.024747787418 1. 4. 0. 0.
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0.00589916583383 1. 5. 0. 0.
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1.33234251368 3. 0. 2. 0.70304082
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-2.10373595421 4. 0. 2. 0.70304082
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0.37619872803 5. 0. 2. 0.70304082
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0.574267667948 3. 2. 2. 0.70304082
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-0.76221893128 4. 2. 2. 0.70304082
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0.0472710395636 5. 2. 2. 0.70304082
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@AUX !---Auxiliary function for Cp0
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CP3 !Ideal gas heat capacity function for R-23.
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?
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?```````````````````````````````````````````````````````````````````````````````
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?Platzer, B., Polt, A., and Maurer, G.,
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?
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!```````````````````````````````````````````````````````````````````````````````
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0. !
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10000. !
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0. !
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0. !
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1.0 8.31451 !Reducing parameters for T, Cp0
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5 0 0 0 0 0 0 !Nterms: polynomial, exponential, cosh, sinh
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4.0101431 0.0
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-0.0055274742 1.0
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0.000074008258 2.0
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-0.12590943e-6 3.0
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0.69472178e-10 4.0
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^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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#ETA !---Viscosity---
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VS7 !Pure fluid viscosity model for R-23 of Shan et al. (2000).
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:DOI:
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?
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?```````````````````````````````````````````````````````````````````````````````
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?Shan, Z., Penoncello, S.G., and Jacobsen, R.T,
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? "A Generalized Model for Viscosity and Thermal Conductivity of
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? Trifluoromethane (R-23),"
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? ASHRAE Transactions, 106:757-767, 2000.
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?
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?The uncertainty in viscosity is 1%.
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?
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!```````````````````````````````````````````````````````````````````````````````
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118.02 !Lower temperature limit [K]
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475.0 !Upper temperature limit [K]
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120000.0 !Upper pressure limit [kPa]
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25.0 !Maximum density [mol/L]
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CI1 !Pointer to reduced effective collision cross-section model
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0.4278 !Lennard-Jones coefficient sigma [nm]
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243.91 !Lennard-Jones coefficient epsilon/kappa [K]
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1.0 1.0 !Reducing parameters for eta, T, rho
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0.2233755 0.5 !Chapman-Enskog term
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!
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!Define variables
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$VR TEMP CNST - =TAU DENS CNST - =DEL
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!
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!Dilute gas
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$DG CI
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!
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!Residual function
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$RF CNST =V1 V1 DENS - =V2
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$RF CI V2 V1 / CNST POWR * DENS V1 / CNST POWR CNST * V1 SQR *
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$RF V2 / TEMP SQRT * DENS V2 / CNST * RGAS / TEMP / EXP * + CI -
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!
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!Critical enhancement function
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$CE CNST 4 * DEL EXP DEL SIGN EXP + / TAU EXP TAU SIGN EXP + /
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!
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!Coefficients
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$CF
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299.28 0. 0. 0. 0 ! T-Tr
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7.5114 0. 0. 0. 0 ! D-Dr
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32.174 0. 0. 0. 0 ! DL
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1.3163 0. 0. 0. 0 ! C1
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1.3163 0. 0. 0. 0 ! C1
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0.1832 0. 0. 0. 0 ! C2
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771.23 0. 0. 0. 0 ! delta G
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3.967 0. 0. 0. 0 ! etaMax
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NUL !Pointer to the viscosity critical enhancement auxiliary function (none used)
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#AUX !---Auxiliary function for the collision integral
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CI1 !Collision integral model for R-23 of Shan et al. (2000).
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?
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?```````````````````````````````````````````````````````````````````````````````
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?Shan, Z., Penoncello, S.G., and Jacobsen, R.T, 2000.
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?
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!```````````````````````````````````````````````````````````````````````````````
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0. !
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10000. !
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0. !
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0. !
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5 !Number of terms
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0.4425728 0 !Coefficient, power of Tstar
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-0.5138403 1
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0.1547566 2
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-0.02821844 3
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0.001578286 4
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================================================================================
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#TCX !---Thermal conductivity---
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TC7 !Pure fluid thermal conductivity model for R-23 of Shan et al. (2000).
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:DOI:
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?
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?```````````````````````````````````````````````````````````````````````````````
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?Shan, Z., Penoncello, S.G., and Jacobsen, R.T,
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? "A Generalized Model for Viscosity and Thermal Conductivity of
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? Trifluoromethane (R-23),"
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? ASHRAE Transactions, 106:757-767, 2000.
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?
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?The uncertainty in thermal conductivity is 2%.
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?
|
||
!```````````````````````````````````````````````````````````````````````````````
|
||
118.02 !Lower temperature limit [K]
|
||
475.0 !Upper temperature limit [K]
|
||
120000.0 !Upper pressure limit [kPa]
|
||
25.0 !Maximum density [mol/L]
|
||
$VR RED CNST =V2 V2 DENS - =V1 DENS DRED - =DEL TEMP TRED - =TAU
|
||
$DG CNST CNST TEMP * +
|
||
$RF CNST CNST TEMP * + V1 ABS V2 / CNST POWR * DENS V2 / CNST POWR CNST *
|
||
$RF V2 SQR * V1 / TEMP SQRT * DENS V1 / CNST * RGAS / TEMP / EXP * + CNST CNST TEMP * + -
|
||
$CE 4 CNST * DEL EXP DEL SIGN EXP + / TAU EXP TAU SIGN EXP + /
|
||
$CF
|
||
0.001 299.28 7.5114 0. 0 !Reducing parameters for T, rho, eta
|
||
68.345 0. 0. 0. 0 ! rhoL
|
||
-2.5370 0. 0. 0. 0 ! B1
|
||
0.05366 0. 0. 0. 0 ! B2
|
||
-2.5370 0. 0. 0. 0 ! B1
|
||
0.05366 0. 0. 0. 0 ! B2
|
||
0.94215 0. 0. 0. 0 ! C1
|
||
0.94215 0. 0. 0. 0 ! C1
|
||
0.14914 0. 0. 0. 0 ! C2
|
||
2508.58 0. 0. 0. 0 ! delta G
|
||
-2.5370 0. 0. 0. 0 ! B1
|
||
0.05366 0. 0. 0. 0 ! B2
|
||
25. 0. 0. 0. 0 ! etaMax
|
||
NUL !Pointer to critical enhancement auxiliary function
|
||
|
||
|
||
|
||
|
||
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
|
||
|
||
@TRN !---ECS Transport---
|
||
ECS !Extended Corresponding States model (R134a reference); fitted to data for R-23.
|
||
?
|
||
?```````````````````````````````````````````````````````````````````````````````
|
||
?Klein, S.A., McLinden, M.O., and Laesecke, A., "An Improved Extended Corresponding States Method for Estimation of Viscosity of Pure Refrigerants and Mixtures," Int. J. Refrigeration, 20(3):208-217, 1997. doi: 10.1016/S0140-7007(96)00073-4.
|
||
?McLinden, M.O., Klein, S.A., and Perkins, R.A., "An Extended Corresponding States Model for the Thermal Conductivity of Refrigerants and Refrigerant Mixtures," Int. J. Refrigeration, 23(1):43-63, 2000. doi: 10.1016/S0140-7007(99)00024-9
|
||
?
|
||
?THERMAL CONDUCTIVITY
|
||
? The ECS parameters for thermal conductivity were based on the data of:
|
||
? Geller, V. and Peredrii, V.G. (1975). Thermal conductivity of Freon 13 and Freon 23 (in Russian). Izv. Vyssh. Uchebn Zaved Energetika, 18:113-116.
|
||
? Makita, T., Tanaka, Y., Morimoto, Y., Noguchi, M., and Kubota, H. (1981). Thermal conductivity of gaseous fluorocarbon refrigerants R12, R13, R22, and R23 under pressure. Int. J. Thermophysics, 2:249-268.
|
||
? Average absolute deviations of the fit from the experimental data are:
|
||
? Geller: 3.84%; Makita: 1.45%; Overall: 2.50%
|
||
?
|
||
?The Lennard-Jones parameters were taken from Shan et al. ASHRAE Trans. 106:1 (2000)
|
||
?
|
||
!```````````````````````````````````````````````````````````````````````````````
|
||
136.0 !Lower temperature limit [K] (based on Ttp/Tc of ref fluid)
|
||
400.0 !Upper temperature limit [K]
|
||
60000.0 !Upper pressure limit [kPa]
|
||
20.0 !Maximum density [mol/L] (limit of ECS-thermo fit)
|
||
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)
|
||
0.4278 !Lennard-Jones coefficient sigma [nm] for ECS method
|
||
243.91 !Lennard-Jones coefficient epsilon/kappa [K] for ECS method
|
||
2 0 0 !Number of terms in f_int term in Eucken correlation, spare1, spare2
|
||
6.057e-4 0. 0. 0. !Coefficient, power of T, spare1, spare2
|
||
1.8604e-6 1. 0. 0. !Coefficient, power of T, spare1, spare2
|
||
1 0 0 !Number of terms in psi (visc shape factor): poly,spare1,spare2
|
||
1.0 0. 0. 0. !Coefficient, power of Tr, power of Dr, spare
|
||
3 0 0 !Number of terms in chi (t.c. shape factor): poly,spare1,spare2
|
||
1.3801 0. 0. 0. !Coefficient, power of Tr, power of Dr, spare
|
||
-0.27975 0. 1. 0. !Coefficient, power of Tr, power of Dr, spare
|
||
0.048798 0. 2. 0. !Coefficient, power of Tr, power of Dr, spare
|
||
NUL !Pointer to critical enhancement auxiliary function
|
||
|
||
|
||
|
||
|
||
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
||
|
||
#STN !---Surface tension---
|
||
ST1 !Surface tension model for R-23 of Mulero et al. (2012).
|
||
:DOI: 10.1063/1.4768782
|
||
?
|
||
?```````````````````````````````````````````````````````````````````````````````
|
||
?Mulero, A., Cachadi<64>a, 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. !
|
||
2 !Number of terms in surface tension model
|
||
299.293 !Critical temperature used in fit (dummy)
|
||
-0.32359 1.6055 !Sigma0 and n
|
||
0.37702 1.5232
|
||
|
||
|
||
#PS !---Vapor pressure---
|
||
PS5 !Vapor pressure equation for R-23 of Penoncello et al. (2003).
|
||
?
|
||
?```````````````````````````````````````````````````````````````````````````````
|
||
?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. !
|
||
299.293 4832.0 !Reducing parameters
|
||
4 0 0 0 0 0 !Number of terms in equation
|
||
-7.2631 1.0
|
||
1.3140 1.5
|
||
-0.78507 2.4
|
||
-3.1991 3.9
|
||
|
||
|
||
#DL !---Saturated liquid density---
|
||
DL1 !Saturated liquid density equation for R-23 of Penoncello et al. (2003).
|
||
?
|
||
?```````````````````````````````````````````````````````````````````````````````
|
||
?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. !
|
||
299.293 7.52 !Reducing parameters
|
||
3 0 0 0 0 0 !Number of terms in equation
|
||
2.2636 0.37
|
||
0.47007 0.94
|
||
0.28660 3.1
|
||
|
||
|
||
#DV !---Saturated vapor density---
|
||
DV3 !Saturated vapor density equation for R-23 of Penoncello et al. (2003).
|
||
?
|
||
?```````````````````````````````````````````````````````````````````````````````
|
||
?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. !
|
||
299.293 7.52 !Reducing parameters
|
||
4 0 0 0 0 0 !Number of terms in equation
|
||
-3.5136 0.43
|
||
-7.7491 1.4
|
||
-24.871 3.7
|
||
-65.637 8.0
|
||
|
||
|
||
@END
|
||
c 1 2 3 4 5 6 7 8
|
||
c2345678901234567890123456789012345678901234567890123456789012345678901234567890
|
||
|
||
|
||
@EOS !Equation of state specification
|
||
ECS Thermodynamic Extended Corresponding States model w/ T- and rho-dependent shape factors.
|
||
?
|
||
?```````````````````````````````````````````````````````````````````````````````
|
||
?Huber, M.L. and Ely, J.F.,
|
||
? "A predictive extended corresponding states model for pure and mixed
|
||
? refrigerants including an equation of state for R134a,"
|
||
? Int. J. Refrigeration, 17(1):18-31, 1994. doi: 10.1016/0140-7007(94)90083-3
|
||
?
|
||
?extended by the addition of density-dependent shape factors based on
|
||
? fit by E.W. Lemmon, NIST, 09-12-96
|
||
?
|
||
?the ideal-gas contribution is computed with a polynomial Cp0 fit based on:
|
||
? Chen, S.S., Wilhoit, R.C., and Zwolinski, B.J.,
|
||
? "Ideal gas thermodynamic properties of six chlorofluoromethanes,"
|
||
? J. Phys. Chem. Ref. Data, 5:571-580, 1976.
|
||
?
|
||
!```````````````````````````````````````````````````````````````````````````````
|
||
118.02 !Lower temperature limit [K]
|
||
500.0 !Upper temperature limit [K]
|
||
60000.0 !Upper pressure limit [kPa]
|
||
23.2618 !Maximum density [mol/L]
|
||
CP2 !Pointer to Cp0 model
|
||
R134A.FLD
|
||
BWR !Pointer to reference fluid model
|
||
0.32668 !Acentric factor for R134a used in shape factor correlation
|
||
0.259147 !Critical compressibility for R134a used in correlation
|
||
0.2654 !Acentric factor for fluid used in shape factor correlation
|
||
299.07 !Critical temperature [K]
|
||
4836.0 !Critical pressure [kPa]
|
||
7.499 !Critical density [mol/L]
|
||
2 !Number of temperature coefficients for 'f' shape factor
|
||
-0.290258460 0. ! alpha1 of Huber & Ely
|
||
-0.722284821 1. ! alpha2 (log(Tr) term)
|
||
1 !Number of density coefficients for 'f' shape factor
|
||
-0.00531203321 1. ! rho coefficient and power in temperature
|
||
3 !Number of temperature coefficients for 'h' shape factor
|
||
5.11752925 0. ! beta1 of Huber & Ely
|
||
3.97934192 1. ! beta2 (log(Tr) term)
|
||
0.281147473 1.
|
||
0 !Number of density coefficients for 'h' shape factor
|
||
|
||
|
||
@AUX !---Auxiliary model specification for Cp0
|
||
CP2 ideal gas heat capacity function of Chen et al. (1976).
|
||
?
|
||
?```````````````````````````````````````````````````````````````````````````````
|
||
?fit based on spectroscopic values of:
|
||
? Chen, S.S., Wilhoit, R.C., and Zwolinski, B.J.,
|
||
? "Ideal gas thermodynamic properties of six chlorofluoromethanes,"
|
||
? J. Phys. Chem. Ref. Data, 5:571-580, 1976.
|
||
?
|
||
!```````````````````````````````````````````````````````````````````````````````
|
||
0. !
|
||
10000. !
|
||
0. !
|
||
0. !
|
||
298.97 8.3145 !Reducing parameters for T, Cp0
|
||
4 0 0 0 0 0 0 !Nterms: polynomial, exponential, cosh, sinh
|
||
3.37567 0.0
|
||
0.936761 1.0
|
||
2.780423 2.0
|
||
-0.946568 3.0
|
||
|
||
|
||
@TCX !Thermal conductivity model specification
|
||
TC0 pure fluid thermal conductivity model of Shan et al. (2000).
|
||
?
|
||
?```````````````````````````````````````````````````````````````````````````````
|
||
?Shan, Z., Penoncello, S.G., and Jacobsen, R.T,
|
||
? "A Generalized Model for Viscosity and Thermal Conductivity of
|
||
? Trifluoromethane (R-23),"
|
||
? ASHRAE Transactions, Volume 106:757-767, 2000.
|
||
?
|
||
?The uncertainty in thermal conductivity is 2% for temperatures above 170 K; may exceed 30% at lower temperatures
|
||
?
|
||
!```````````````````````````````````````````````````````````````````````````````
|
||
118.02 !Lower temperature limit [K]
|
||
475.0 !Upper temperature limit [K]
|
||
120000.0 !Upper pressure limit [kPa]
|
||
25.0 !Maximum density [mol/L]
|
||
R23 !Pointer to hardcoded thermal conductivity model
|
||
7 0 0 0 0 0 0 0 !Number of terms for various pieces
|
||
299.28 7.5114 1. 0. 0 !Reducing parameters for T, rho, eta
|
||
68.345 0. 0. 0. 0 ! rhoL
|
||
-2.537 0. 0. 0. 0 ! B1
|
||
0.05366 0. 0. 0. 0 ! B2
|
||
0.94215 0. 0. 0. 0 ! C1
|
||
0.14914 0. 0. 0. 0 ! C2
|
||
2508.58 0. 0. 0. 0 ! delta G
|
||
25. 0. 0. 0. 0 ! etaMax
|
||
NUL !Pointer to the viscosity critical enhancement auxiliary function (none used)
|
||
|
||
|
||
@ETA !Viscosity model specification
|
||
VS0 pure fluid viscosity model of Shan et al. (2000).
|
||
?
|
||
?```````````````````````````````````````````````````````````````````````````````
|
||
?Shan, Z., Penoncello, S.G., and Jacobsen, R.T,
|
||
? "A Generalized Model for Viscosity and Thermal Conductivity of
|
||
? Trifluoromethane (R-23),"
|
||
? ASHRAE Transactions, Volume 106:757-767, 2000.
|
||
?
|
||
?The uncertainty in viscosity is 1%.
|
||
?
|
||
!```````````````````````````````````````````````````````````````````````````````
|
||
118.02 !Lower temperature limit [K]
|
||
475.0 !Upper temperature limit [K]
|
||
120000.0 !Upper pressure limit [kPa]
|
||
25.0 !Maximum density [mol/L]
|
||
R23 !Pointer to hardcoded thermal conductivity model
|
||
1 0 0 5 0 0 0 0 !Number of terms for various pieces
|
||
CI1 !Pointer to reduced effective collision cross-section model
|
||
0.4278 !Lennard-Jones coefficient sigma [nm]
|
||
243.91 !Lennard-Jones coefficient epsilon/kappa [K]
|
||
1.0 1.0 !Reducing parameters for T, eta
|
||
0.2233755 0.5 !Chapman-Enskog term
|
||
299.28 7.5114 1.0 !Reducing parameters for T, rho, eta
|
||
32.174 0. 0. 0. 0 ! rhoL
|
||
1.3163 0. 0. 0. 0 ! C1
|
||
0.1832 0. 0. 0. 0 ! C2
|
||
771.23 0. 0. 0. 0 ! delta G
|
||
3.967 0. 0. 0. 0 ! etaMax
|
||
NUL !Pointer to the viscosity critical enhancement auxiliary function (none used)
|