849 lines
42 KiB
Plaintext
849 lines
42 KiB
Plaintext
Sulfur hexafluoride !Short name
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2551-62-4 !CAS number
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Sulfur hexafluoride !Full name
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SF6 !Chemical formula {SF6}
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Sulfur fluoride !Synonym
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146.0554192 !Molar mass [g/mol]
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223.555 !Triple point temperature [K]
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204.9 !Normal boiling point [K]
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318.7232 !Critical temperature [K]
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3754.983 !Critical pressure [kPa]
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5.0823 !Critical density [mol/L]
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0.218 !Acentric factor (calculated by extrapolating the vapor pressure curve beyond the triple point temperature)
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0.0 !Dipole moment [Debye]; (exactly zero due to symmetry)
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IIR !Default reference state
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10.0 !Version number
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1080 !UN Number :UN:
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other !Family :Family:
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???? !Heating value (upper) [kJ/mol] :Heat:
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1S/F6S/c1-7(2,3,4,5)6 !Standard InChI String :InChi:
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SFZCNBIFKDRMGX-UHFFFAOYSA-N !Standard InChI Key :InChiKey:
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434e2a40 (ethane) !Alternative fluid for mixing rules :AltID:
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7a75e610 !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 M. McLinden, NIST Physical and Chemical Properties Division, Boulder, Colorado
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! 03-14-97 MM, Original version.
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! 08-24-98 EWL, Change EOS to that of de Reuck et al. (1991).
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! 11-18-98 EWL, Add equation of state of Polt et al. (1992).
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! 10-05-06 EWL, Add Guder and Wagner EOS.
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! 08-13-08 EWL, Add additional information from Guder and Wagner publication.
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! 04-05-11 MLH, Add altunin viscosity model and hafer viscosity models.
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! 11-18-11 MLH, Add revised FT model.
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! 01-09-12 MLH, Add Assael thermal conductivity model.
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! 09-18-12 MLH, Update references on thermal conductivity and viscosity.
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! 12-06-12 EWL, Add surface tension coefficients of Mulero et al. (2012).
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! 06-03-14 MLH, Correct thermal conductivity density scaling factor.
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! 08-26-14 EWL, Change acentric factor from 0.21 to 0.218.
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! 05-15-17 EWL, Change the hard coded VS0 model to the VS7 reverse Polish notation.
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! 02-02-18 EWL, Add melting line model of Harvey (2017).
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________________________________________________________________________________
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#EOS !---Equation of state---
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FEQ !Helmholtz equation of state for sulfur hexafluoride of Guder and Wagner (2009).
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:TRUECRITICALPOINT: 318.7232 5.0823174112 !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: 10.1063/1.3037344
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?
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?```````````````````````````````````````````````````````````````````````````````
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?Guder, C. and Wagner, W.,
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? "A Reference Equation of State for the Thermodynamic Properties of Sulfur
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? Hexafluoride (SF6) for Temperatures from the Melting Line to 625 K and
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? Pressures up to 150 MPa,"
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? J. Phys. Chem. Ref. Data, 38(1):33-94, 2009. doi: 10.1063/1.3037344
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?
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?The uncertainties in density are 0.02% for temperatures less than 340 K
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? (<30 MPa), 0.03% for temperatures below 500 K (<30 MPa), 0.1% increasing
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? to 0.3% at temperatures above 500 K, and 0.2% for all temperatures at
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? pressures above 30 MPa increasing to 1% at the pressure limits of the
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? equation of state. In the critical region, the uncertainty in
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? pressure is 0.01%. The uncertainties in the speed of sound range from
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? 0.1% at the lowest temperatures in the gas phase, to 0.5% in the liquid,
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? and to 1-2% elsewhere. The uncertainties in heat capacities are
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? generally within 2%, decreasing to 0.2% at the lowest pressures in the
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? vapor phase; below 400 K and above 20 MPa, the uncertainties are 5%.
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? The uncertainty in vapor pressure is 0.01%.
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?
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!```````````````````````````````````````````````````````````````````````````````
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223.555 !Lower temperature limit [K]
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625.0 !Upper temperature limit [K]
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150000.0 !Upper pressure limit [kPa]
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14.5 !Maximum density [mol/L]
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CPP !Pointer to Cp0 model
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146.0554192 !Molar mass [g/mol]
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223.555 !Triple point temperature [K]
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231.429 !Pressure at triple point [kPa]
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12.632 !Density at triple point [mol/L]
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204.9 !Normal boiling point temperature [K]
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0.218 !Acentric factor
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318.7232 3754.983 5.0823174112 !Tc [K], pc [kPa], rhoc [mol/L]
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318.7232 5.0823174112 !Reducing parameters [K, mol/L]
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8.314472 !Gas constant [J/mol-K]
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22 4 14 12 0 0 0 0 0 0 0 0 !# terms and # coefs/term for normal terms, Gaussian terms, and Gao terms
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0.54958259132835 0.125 1. 0. !a(i),t(i),d(i),l(i)
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-0.87905033269396 1.25 1. 0.
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-0.84656969731452 1.875 1. 0.
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0.27692381593529 0.125 2. 0.
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-4.9864958372345 1.5 2. 0.
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4.8879127058055 1.625 2. 0.
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0.036917081634281 1.5 3. 0.
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0.00037030130305087 5.625 3. 0.
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0.039389132911585 0.625 4. 0.
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0.00042477413690006 0.25 6. 0.
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-0.02415001386389 6.0 1. 1.
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0.059447650642255 0.25 2. 1.
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-0.38302880142267 4.75 2. 1.
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0.32606800951983 5.375 2. 1.
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-0.029955940562031 5.875 3. 1.
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-0.086579186671173 2.0 6. 1.
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4.1600684707562 5.875 2. 2.
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-4.1398128855814 6.0 2. 2.
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-0.55842159922714 5.625 4. 2.
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0.56531382776891 5.75 4. 2.
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0.0082612463415545 0.0 2. 3.
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-0.01020099533808 0.5 2. 3.
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-0.021662523861406 4.0 1. 2. 2. -10.0 -150.0 1.13 0.85 0. 0. 0.
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0.034650943893908 1.0 3. 2. 2. -10.0 -150.0 1.13 0.85 0. 0. 0.
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-0.028694281385812 3.0 4. 2. 2. -10.0 -150.0 1.13 0.85 0. 0. 0.
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0.0084007238998053 2.0 1. 2. 2. -10.0 -150.0 1.16 0.85 0. 0. 0.
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-0.26969359922498 4.0 1. 2. 2. -11.0 -225.0 1.19 1.0 0. 0. 0.
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9.0415215646344 3.0 4. 2. 2. -25.0 -300.0 1.19 1.0 0. 0. 0.
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-3.7233103557977 4.0 3. 2. 2. -30.0 -350.0 1.16 1.0 0. 0. 0.
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-2752.4670823704 1.0 4. 2. 2. -30.0 -350.0 1.16 1.0 0. 0. 0.
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5771.1861697319 2.0 4. 2. 2. -30.0 -350.0 1.16 1.0 0. 0. 0.
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-3023.4003119748 3.0 4. 2. 2. -30.0 -350.0 1.16 1.0 0. 0. 0.
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2225277.843536 3.0 1. 2. 2. -30.0 -400.0 1.22 1.0 0. 0. 0.
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-2305606.5559032 4.0 1. 2. 2. -30.0 -400.0 1.22 1.0 0. 0. 0.
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6391885.2944475 3.0 3. 2. 2. -30.0 -400.0 1.22 1.0 0. 0. 0.
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-6079209.1415592 4.0 3. 2. 2. -30.0 -400.0 1.22 1.0 0. 0. 0.
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eta beta gamma epsilon
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EXP[eta*(delta-epsilon)^2+beta*(tau-gamma)^2]
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#AUX !---Auxiliary function for Cp0
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CPP !Ideal gas heat capacity function for sulfur hexafluoride of Guder and Wagner (2009).
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?
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?```````````````````````````````````````````````````````````````````````````````
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?Guder, C. and Wagner, W., 2009.
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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 3 0 0 0 0 0 !Nterms: polynomial, exponential, cosh, sinh
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4.0 0.0
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3.66118232 515.4653151
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7.87885103 875.5693279
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3.45981679 1349.12572
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#AUX !---Auxiliary function for PX0
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PX0 !Helmholtz energy ideal-gas function for sulfur hexafluoride of Guder and Wagner (2009).
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?
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?```````````````````````````````````````````````````````````````````````````````
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?Guder, C. and Wagner, W., 2009.
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?
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!```````````````````````````````````````````````````````````````````````````````
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1 2 3 0 0 0 0 0 !Nterms: ai*log(tau**ti); ai*tau**ti; ai*log(1-exp(bi*tau))
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3.0 1.0 !ai, ti for [ai*log(tau**ti)] terms
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-15.4089857348096295 0.0 !aj, ti for [ai*tau**ti] terms
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10.8151609115241314 1.0 !aj, ti for [ai*tau**ti] terms
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3.66118232 515.4653151 !aj, ti for [ai*log(1-exp(-ti/T)] terms
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7.87885103 875.5693279
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3.45981679 1349.12572
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#AUX !---Auxiliary function for PH0
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PH0 !Ideal gas Helmholtz form for sulfur hexafluoride of Guder and Wagner (2009).
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?
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?```````````````````````````````````````````````````````````````````````````````
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?Guder, C. and Wagner, W., 2009.
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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 3 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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3.0 1.0 !ai, ti for [ai*log(tau**ti)] terms
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11.638611086 0.0 !aj, ti for [ai*tau**ti] terms
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-6.392241811 1.0
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3.66118232 -1.617282065 !aj, ti for [ai*log(1-exp(ti*tau)] terms
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7.87885103 -2.747115139
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3.45981679 -4.232907175
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--------------------------------------------------------------------------------
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@EOS !---Equation of state---
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FES !Helmholtz equation of state for sulfur hexafluoride of Span and Wagner (2003).
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?
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?```````````````````````````````````````````````````````````````````````````````
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?Span, R. and Wagner, W.
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? "Equations of State for Technical Applications. II. Results for Nonpolar Fluids,"
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? Int. J. Thermophys., 24(1):41-109, 2003. doi: 10.1023/A:1022310214958
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?
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?The uncertainties of the equation of state are approximately 0.2% (to
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? 0.5% at high pressures) in density, 1% (in the vapor phase) to 2% in
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? heat capacity, 1% (in the vapor phase) to 2% in the speed of sound, and
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? 0.2% in vapor pressure, except in the critical region.
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?
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!```````````````````````````````````````````````````````````````````````````````
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222.38 !Lower temperature limit [K]
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600.0 !Upper temperature limit [K]
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100000.0 !Upper pressure limit [kPa]
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12.65 !Maximum density [mol/L]
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CP1 !Pointer to Cp0 model
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146.054 !Molar mass [g/mol]
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222.38 !Triple point temperature [K]
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221.22 !Pressure at triple point [kPa]
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12.645 !Density at triple point [mol/L]
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205.56 !Normal boiling point temperature [K]
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0.218 !Acentric factor
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318.7232 3755.0 5.0813398 !Tc [K], pc [kPa], rhoc [mol/L]
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318.7232 5.0813398 !Reducing parameters [K, mol/L]
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8.31451 !Gas constant [J/mol-K]
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12 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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1.2279403 0.25 1. 0. !a(i),t(i),d(i),l(i)
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-3.3035623 1.125 1. 0.
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1.2094019 1.5 1. 0.
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-0.12316 1.375 2. 0.
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0.11044657 0.25 3. 0.
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0.00032952153 0.875 7. 0.
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0.27017629 0.625 2. 1.
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-0.062910351 1.75 5. 1.
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-0.3182889 3.625 1. 2.
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-0.099557419 3.625 4. 2.
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-0.036909694 14.5 3. 3.
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0.019136427 12.0 4. 3.
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@EOS !---Equation of state---
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FE1 !Helmholtz equation of state for sulfur hexafluoride of de Reuck et al. (1991).
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?
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?```````````````````````````````````````````````````````````````````````````````
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?de Reuck, K.M., Craven, R.J.B., and Cole, W.A.,
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? "Report on the Development of an Equation of State for Sulphur Hexafluoride,"
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? IUPAC Thermodynamic Tables Project Centre, London, 1991.
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?
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?The uncertainties of the equation of state are 0.1% in density, 2% in heat
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? capacity, and 5% in the speed of sound, except in the critical region.
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?
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!```````````````````````````````````````````````````````````````````````````````
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222.38 !Lower temperature limit [K]
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525.0 !Upper temperature limit [K]
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55000.0 !Upper pressure limit [kPa]
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12.7 !Maximum density [mol/L]
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CP1 !Pointer to Cp0 model
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146.0564 !Molar mass [g/mol]
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222.38 !Triple point temperature [K]
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224.36 !Pressure at triple point [kPa]
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12.677 !Density at triple point [mol/L]
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204.9 !Normal boiling point temperature [K]
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0.21 !Acentric factor
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318.733 3754.55 5.0926 !Tc [K], pc [kPa], rhoc [mol/L]
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318.733 5.0926 !Reducing parameters [K, mol/L]
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8.31448 !Gas constant [J/mol-K]
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25 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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0.26945570453 0.0 1. 0. !a(i),t(i),d(i),l(i)
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-0.554046585076 1.5 1. 0.
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-0.929624636454 2.0 1. 0.
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||
0.505661081063 0.0 2. 0.
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||
-0.683495847809 1.0 2. 0.
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||
0.579161832426 2.0 2. 0.
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||
-0.122636218956 0.0 3. 0.
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||
-0.0260339227668 2.0 4. 0.
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||
0.0222201648687 0.0 5. 0.
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||
-0.00118992341472 0.5 10. 0.
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||
0.00292000609763 1.0 10. 0.
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||
-0.00243315775571 1.5 10. 0.
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||
0.00068977829755 2.0 10. 0.
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||
-1.47585329235 3.0 2. 2.
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||
2.75952303526 4.0 2. 2.
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||
-1.42721418498 5.0 2. 2.
|
||
0.0598794196648 5.0 3. 2.
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||
0.00219991168025 1.0 7. 2.
|
||
0.00746554473361 5.0 7. 2.
|
||
0.00345233637389 1.0 9. 2.
|
||
-0.0253226231963 9.0 4. 4.
|
||
0.0433906886402 14.0 4. 4.
|
||
-0.0249349699078 24.0 4. 4.
|
||
0.00338560952242 24.0 6. 4.
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||
0.0005399858997 9.0 4. 6.
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||
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@AUX !---Auxiliary function for Cp0
|
||
CP1 !Ideal gas heat capacity function for sulfur hexafluoride of Cole and de Reuck (1990).
|
||
?
|
||
?```````````````````````````````````````````````````````````````````````````````
|
||
?Cole, W.A. and de Reuck, K.M.,
|
||
? "An interim analytic equation of state for sulfurhexafluoride,"
|
||
? Int. J. Thermophysics, 11:189-199, 1990. doi: 10.1007/BF00503870
|
||
?
|
||
!```````````````````````````````````````````````````````````````````````````````
|
||
0. !
|
||
10000. !
|
||
0. !
|
||
0. !
|
||
1.0 8.31448 !Reducing parameters for T, Cp0
|
||
1 5 0 0 0 0 0 !Nterms: polynomial, exponential, cosh, sinh
|
||
3.9837756784 0.0 ! = f1 term of Cole and de Reuck
|
||
2.218185101 1114.38 ! = f2, g2 coefficients
|
||
-10.921337374 925.64
|
||
3.3102497939 499.26
|
||
17.5189671483 884.9
|
||
2.8903523803 1363.93
|
||
|
||
|
||
@EOS !---Equation of state---
|
||
FE2 !Helmholtz equation of state for sulfur hexafluoride of Polt et al. (1992).
|
||
?
|
||
?```````````````````````````````````````````````````````````````````````````````
|
||
?Polt, A., Platzer, B., and Maurer, G.,
|
||
? "Parameter der thermischen Zustandsgleichung von Bender fuer 14
|
||
? mehratomige reine Stoffe,"
|
||
? Chem. Tech. (Leipzig), 44(6):216-224, 1992.
|
||
?
|
||
!```````````````````````````````````````````````````````````````````````````````
|
||
222.38 !Lower temperature limit [K]
|
||
523.0 !Upper temperature limit [K]
|
||
40000.0 !Upper pressure limit [kPa]
|
||
13.133 !Maximum density [mol/L]
|
||
CP2 !Pointer to Cp0 model
|
||
146.05 !Molar mass [g/mol]
|
||
222.38 !Triple point temperature [K]
|
||
236.73 !Pressure at triple point [kPa]
|
||
12.712 !Density at triple point [mol/L]
|
||
200.44 !Normal boiling point temperature [K]
|
||
0.1891 !Acentric factor
|
||
318.75 3764.1 4.9880178 !Tc [K], pc [kPa], rhoc [mol/L]
|
||
318.75 4.9880178 !Reducing parameters [K, mol/L]
|
||
8.3143 !Gas constant [J/mol-K]
|
||
22 5 0 0 0 0 0 0 0 0 0 0 !# terms and # coefs/term for normal terms, Gaussian terms, and Gao terms
|
||
0.131111896375 3. 0. 0. 0. !a(i),t(i),d(i),l(i)
|
||
-0.792338803106 4. 0. 0. 0.
|
||
0.580899809209 5. 0. 0. 0.
|
||
1.53233600406 0. 1. 0. 0.
|
||
-4.85096079094 1. 1. 0. 0.
|
||
4.82411603806 2. 1. 0. 0.
|
||
-3.11285647219 3. 1. 0. 0.
|
||
0.442141211276 4. 1. 0. 0.
|
||
0.206313183222 0. 2. 0. 0.
|
||
-0.372305169645 1. 2. 0. 0.
|
||
0.443536383059 2. 2. 0. 0.
|
||
-0.047635485091 0. 3. 0. 0.
|
||
0.116313319336 1. 3. 0. 0.
|
||
0.0570240883234 0. 4. 0. 0.
|
||
-0.152963195118 1. 4. 0. 0.
|
||
0.0259842094503 1. 5. 0. 0.
|
||
-0.131111896375 3. 0. 2. 1.32678063
|
||
0.792338803106 4. 0. 2. 1.32678063
|
||
-0.580899809209 5. 0. 2. 1.32678063
|
||
-0.744763581796 3. 2. 2. 1.32678063
|
||
2.04368923925 4. 2. 2. 1.32678063
|
||
-1.2933532412 5. 2. 2. 1.32678063
|
||
|
||
|
||
@AUX !---Auxiliary function for Cp0
|
||
CP2 !Ideal gas heat capacity function for sulfur hexafluoride.
|
||
?
|
||
?```````````````````````````````````````````````````````````````````````````````
|
||
?Polt, A., Platzer, B., and Maurer, G.,
|
||
?
|
||
!```````````````````````````````````````````````````````````````````````````````
|
||
0. !
|
||
10000. !
|
||
0. !
|
||
0. !
|
||
1.0 146.05 !Reducing parameters for T, Cp0
|
||
3 0 0 0 0 0 0 !Nterms: polynomial, exponential, cosh, sinh
|
||
-0.0376915 0.0
|
||
0.00305814 1.0
|
||
-0.00000237654 2.0
|
||
|
||
|
||
|
||
|
||
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
||
|
||
#ETA !---Viscosity---
|
||
VS4 !Pure fluid generalized friction theory viscosity model for sulfur hexafluoride of Quinones-Cisneros et al. (2012).
|
||
:DOI: 10.1063/1.3702441
|
||
?
|
||
?```````````````````````````````````````````````````````````````````````````````
|
||
?Qui<75>ones-Cisneros, S.E., Huber, M.L., and Deiters, U.K.,
|
||
? "Correlation for the Viscosity of Sulfur Hexafluoride (SF6) from the Triple
|
||
? Point to 1000 K and Pressures to 50 MPa,"
|
||
? J. Phys. Chem. Ref. Data, 41(2), 023102, 2012. doi: 10.1063/1.3702441
|
||
?
|
||
?In the low-pressure (less than 0.33 MPa) region from 300 K to 700 K the estimated uncertainty
|
||
? is 0.3%. In the region from 300 K to 425 K for pressures less than 20 MPa, the estimated uncertainty
|
||
? is less than 1%. Where there were data available for validation at temperatures from 230 K to 575 K
|
||
? for pressures up to 50 MPa, the estimated uncertainty is 2%. The correlation extrapolates
|
||
? in a physically reasonable manner and may be used at pressures to 100 MPa and temperatures
|
||
? from the triple point to 1000 K.
|
||
?
|
||
!```````````````````````````````````````````````````````````````````````````````
|
||
223.555 !Lower temperature limit [K]
|
||
1000.0 !Upper temperature limit [K]
|
||
100000.0 !Upper pressure limit [kPa]
|
||
14.5 !Maximum density [mol/L]
|
||
6 0 0 0 0 0 !Number of terms associated with dilute-gas function
|
||
NUL !Pointer to reduced effective collision cross-section model; not used
|
||
0.5218 !Lennard-Jones coefficient sigma [nm] (not used)
|
||
222.1 !Lennard-Jones coefficient epsilon/kappa [K] (not used)
|
||
318.7232 0.001 !Reducing parameters for T, eta
|
||
0.0 0.5 !Chapman-Enskog term; not used here
|
||
118561.16699351955 0.0 !Empirical eta0 terms
|
||
-378102.73635338076 0.25
|
||
416427.9031538455 0.50
|
||
-165294.7340464616 0.75
|
||
24538.07646056496 1.0
|
||
0 !Number of terms for initial density dependence
|
||
-0.000687811175736081 0.0008226610400301656 -0.00035486706526579556 0. 0. ! a(0),a(1),a(2)
|
||
0.00017273725029313174 -0.00020244781619303473 0.00019595249965414938 0. 0. ! b(0),b(1),b(2)
|
||
0.000053878327830358164 1.6380545026985154e-6 -0.000020815988636242458 0. 0. ! c(0),c(1),c(2)
|
||
9.995629603356937e-8 -9.641674089199906e-9 -7.541957772276217e-9 0. 0. ! A(0),A(1),A(2)
|
||
-8.982564893670087e-8 -8.494276469212978e-8 0.0 0. 0. ! B(0),B(1),B(2)
|
||
-8.534317761264114e-6 0.000011440365750572709 -5.657623737235593e-6 0. 0. ! C(0),C(1),C(2)
|
||
0.0 0.0 2.2798018358592354e-11 0. 1. ! D(0),D(1),D(2)
|
||
0.0 -5.6940155341869364e-11 2.921901268228413e-11 0. 1. ! E(0),E(1),E(2)
|
||
NUL !Pointer to the viscosity critical enhancement auxiliary function (none used)
|
||
|
||
|
||
|
||
|
||
================================================================================
|
||
|
||
#TCX !---Thermal conductivity---
|
||
TC1 !Pure fluid thermal conductivity model for sulfur hexafluoride of Assael et al. (2012).
|
||
:DOI: 10.1063/1.4708620
|
||
?
|
||
?```````````````````````````````````````````````````````````````````````````````
|
||
?Assael, M.J., Koini, I.A., Antoniadis, K.D., Huber, M.L., Abdulagatov, I.M., and Perkins, R.A.,
|
||
? "Reference Correlation of the Thermal Conductivity of Sulfur Hexafluoride
|
||
? from the Triple Point to 1000 K and up to 150 MPa,"
|
||
? J. Phys. Chem. Ref. Data, 41, 023104, 2012. doi: 10.1063/1.4708620 Also see erratum, submitted 2014.
|
||
?
|
||
?The overall uncertainty is estimated, for pressures less than 150 MPa and temperatures less than 1000 K,
|
||
? to be less than 4%.
|
||
?
|
||
!```````````````````````````````````````````````````````````````````````````````
|
||
223.55 !Lower temperature limit [K]
|
||
1000.0 !Upper temperature limit [K]
|
||
150000.0 !Upper pressure limit [kPa]
|
||
14.5 !Maximum density [mol/L]
|
||
4 3 !# terms for dilute gas function: numerator, denominator
|
||
1.0 0.001 !Reducing parameters for T, tcx
|
||
1461860.0 0.
|
||
-18539.4 1.
|
||
77.7891 2.
|
||
0.0241059 3.
|
||
29661.7 0.
|
||
505.67 1.
|
||
1.0 2.
|
||
10 0 !# terms for background gas function: numerator, denominator
|
||
318.7232 5.0823 1. !Reducing parameters for T, rho, tcx
|
||
-0.0283746 0. 1. 0.
|
||
0.0207472 0. 2. 0.
|
||
-0.0055718 0. 3. 0.
|
||
0.0053289 0. 4. 0.
|
||
-0.00161688 0. 5. 0.
|
||
0.0352768 1. 1. 0.
|
||
-0.0433053 1. 2. 0.
|
||
0.0512084 1. 3. 0.
|
||
-0.0290262 1. 4. 0.
|
||
0.00598438 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 sulfur hexafluoride of Assael et al. (2012).
|
||
?
|
||
?```````````````````````````````````````````````````````````````````````````````
|
||
?Assael, M.J., Koini, I.A., Antoniadis, K.D., Huber, M.L., Abdulagatov, I.M., and Perkins, R.A., 2012.
|
||
?
|
||
!```````````````````````````````````````````````````````````````````````````````
|
||
0. !
|
||
10000. !
|
||
0. !
|
||
0. !
|
||
9 0 0 0 !# terms: terms, spare, spare, spare
|
||
1.0 1.0 1.0 !Reducing parameters for T, rho, tcx [mW/(m-K)]
|
||
0.63 !Nu (universal exponent)
|
||
1.2415 !Gamma (universal exponent)
|
||
1.01 !R0 (universal amplitude)
|
||
0.065 !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)
|
||
0.19e-9 !Xi0 (amplitude) [m]
|
||
0.052 !Gam0 (amplitude) [-]
|
||
0.35e-9 !Qd_inverse (modified effective cutoff parameter) [m]
|
||
478.08 !Tref (reference temperature) [K]
|
||
|
||
|
||
|
||
|
||
********************************************************************************
|
||
|
||
@ETA !---Viscosity---
|
||
VS1 !Pure fluid viscosity model for sulfur hexafluoride of Hafer (1999).
|
||
?
|
||
?```````````````````````````````````````````````````````````````````````````````
|
||
?Hafer, R.F., Torsional crystal viscometry: Wide ranging resonance measurements
|
||
? and feasability study of transient-decay measurements, MSc Thesis, Dept. Chem. Eng. Univ. Colorado (1999)
|
||
?
|
||
!```````````````````````````````````````````````````````````````````````````````
|
||
223.555 !Lower temperature limit [K]
|
||
625.0 !Upper temperature limit [K]
|
||
150000.0 !Upper pressure limit [kPa]
|
||
14.5 !Maximum density [mol/L]
|
||
1 !Number of terms associated with dilute-gas function
|
||
CI1 !Pointer to reduced effective collision cross-section model
|
||
0.52451 !Lennard-Jones coefficient sigma [nm]
|
||
211.43 !Lennard-Jones coefficient epsilon/kappa [K]
|
||
1.0 1.0 !Reducing parameters for T, eta
|
||
0.32263 0.5 !=0.0266957*SQRT(MW) [Chapman-Enskog term]
|
||
9 !Number of terms for initial density dependence
|
||
211.43 0.08690 !Reducing parameters for T (=eps/k), etaB2 (= 0.6022137*sigma**3)
|
||
-19.572881 0.0 !Coefficient, power in T* = T/(eps/k)
|
||
219.73999 -0.25
|
||
-1015.3226 -0.5
|
||
2471.0125 -0.75
|
||
-3375.1717 -1.0
|
||
2491.6597 -1.25
|
||
-787.26086 -1.5
|
||
14.085455 -2.5
|
||
-0.34664158 -5.5
|
||
-2 4 1 2 0 0 !# resid terms: close-packed density; simple poly; numerator of rational poly; denominator of rat. poly; numerator of exponential; denominator of exponential
|
||
318.7232 5.0823 1000.0 !Reducing parameters for T, rho, eta
|
||
2.91772 0.0 !Alternative form for del10; numerator term
|
||
-0.0741208 0.5 !Alternative form for del10; denominator terms
|
||
-0.043169 0.0 1. 0. 0 ! beta1; powers of tau, del, del0; power of del in exponential [0 indicated no exponential term present]
|
||
0.0061884 0.0 2. 0. 0 ! beta2
|
||
-0.00542764 0.0 3. 0. 0 ! beta3
|
||
-0.0 0.0 1. -1. 0 ! beta7
|
||
0.140519 0.0 1. 0. 0 ! beta7 in non-simple poly term
|
||
1.0 0.0 0. 1. 0 ! del0 term in denominator
|
||
-1.0 0.0 1. 0. 0 ! -del term in denominator
|
||
NUL !Pointer to the viscosity critical enhancement auxiliary function (none used)
|
||
|
||
|
||
@AUX !---Auxiliary function for the collision integral
|
||
CI1 !Reduced effective collision cross-section model (empirical form in log(T*)) for sulfur hexafluoride.
|
||
?
|
||
?```````````````````````````````````````````````````````````````````````````````
|
||
?
|
||
!```````````````````````````````````````````````````````````````````````````````
|
||
0. !
|
||
10000. !
|
||
0. !
|
||
0. !
|
||
5 !Number of terms
|
||
0.4450251 0 !Coefficient, power of Tstar
|
||
-0.5079322 1
|
||
0.1285776 2
|
||
-0.008328165 3
|
||
-0.002713173 4
|
||
|
||
|
||
@ETA !---Viscosity---
|
||
VS7 !Pure fluid viscosity model for sulfur hexafluoride of Altunin (1984).
|
||
?
|
||
?```````````````````````````````````````````````````````````````````````````````
|
||
?Altunin, V.V., "Equation for the viscosity of sulfur hexafluoride for a
|
||
? broad range of temperatures and presurs, Tr. Mosk., Energ. Inst., 1984,622, pp12-18
|
||
?
|
||
!```````````````````````````````````````````````````````````````````````````````
|
||
223.555 !Lower temperature limit [K]
|
||
625.0 !Upper temperature limit [K]
|
||
150000.0 !Upper pressure limit [kPa]
|
||
14.5 !Maximum density [mol/L]
|
||
NUL !Omega model
|
||
!
|
||
!Residual function
|
||
$RF RED SUM:3 SUMEX:10 *
|
||
!
|
||
!Coefficients
|
||
$CF
|
||
1.0 318.7 5.05287653 0. 0 !Reducing parameters for eta, T, rho
|
||
0.486 0. 0. 0. 0 !Dilute gas terms
|
||
17.075 1. 0. 0. 0
|
||
-1.3976 2. 0. 0. 0
|
||
0.911990483 0. 1. 0. 0 !Simple polynomial terms
|
||
-3.62880599 0. 2. 0. 0
|
||
4.68880707 0. 3. 0. 0
|
||
-2.04822413 0. 4. 0. 0
|
||
0.299289894 0. 5. 0. 0
|
||
-0.798662631 -1. 1. 0. 0
|
||
5.48041104 -1. 2. 0. 0
|
||
-6.15316823 -1. 3. 0. 0
|
||
2.58614144 -1. 4. 0. 0
|
||
-0.369541671 -1. 5. 0. 0
|
||
NUL !Pointer to the viscosity critical enhancement auxiliary function (none used)
|
||
|
||
|
||
|
||
|
||
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
|
||
|
||
@TRN !---ECS Transport---
|
||
ECS !Extended Corresponding States model (Propane reference); predictive mode for sulfur hexafluoride.
|
||
?
|
||
?```````````````````````````````````````````````````````````````````````````````
|
||
?*** 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
|
||
?
|
||
?The Lennard-Jones parameters were estimated from Reid, Prausnitz & Sherwood (1977).
|
||
?
|
||
!```````````````````````````````````````````````````````````````````````````````
|
||
223.55 !Lower temperature limit [K]
|
||
1000.0 !Upper temperature limit [K]
|
||
150000.0 !Upper pressure limit [kPa]
|
||
14.5 !Maximum density [mol/L]
|
||
FEQ PROPANE.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)
|
||
0.5128 !Lennard-Jones coefficient sigma [nm] for ECS method
|
||
222.1 !Lennard-Jones coefficient epsilon/kappa [K] for ECS method
|
||
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
|
||
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
|
||
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
|
||
|
||
|
||
|
||
|
||
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
||
|
||
#DE !---Dielectric constant---
|
||
DE3 !Dielectric constant model for SF6 of Harvey and Mountain (2017).
|
||
:DOI: 10.1007/s10765-017-2279-6
|
||
?
|
||
?```````````````````````````````````````````````````````````````````````````````
|
||
?Harvey, A.H. and Mountain, R.D.,
|
||
? "Correlations for the Dielectric Constants of H2S, SO2, and SF6,"
|
||
? Int. J. Thermophys., 38:147, 2017.
|
||
?
|
||
!```````````````````````````````````````````````````````````````````````````````
|
||
0. !
|
||
10000. !
|
||
0. !
|
||
0. !
|
||
273.16 1000.0 1.0 !Reducing parameters for T and D
|
||
0 1 4 0 0 0 !Number of terms in dielectric constant model
|
||
16.5 0. 1. 0. !Coefficient, T exp, D exp
|
||
69.2 0. 2. 0.
|
||
38.8 1. 2. 0.
|
||
-177.9 0. 2.2 0.
|
||
-171.9 1. 2.2 0.
|
||
|
||
|
||
#STN !---Surface tension---
|
||
ST1 !Surface tension model for sulfur hexafluoride 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
|
||
318.723 !Critical temperature used in fit (dummy)
|
||
0.0538 1.271 !Sigma0 and n
|
||
-0.00004064 0.2116
|
||
|
||
|
||
#MLT !---Melting line---
|
||
ML1 !Melting line model for sulfur hexafluoride of Harvey (2017).
|
||
:DOI: 10.1063/1.5005537
|
||
?
|
||
?```````````````````````````````````````````````````````````````````````````````
|
||
?Harvey, A.H.,
|
||
? "On the Melting Curve of Sulfur Hexafluoride,"
|
||
? J. Phys. Chem. Ref. Data, 46(4), 043102, 2017.
|
||
?
|
||
!```````````````````````````````````````````````````````````````````````````````
|
||
223.555 !Lower temperature limit [K]
|
||
650.0 !Upper temperature limit [K]
|
||
0. !
|
||
0. !
|
||
223.555 231.429 !Reducing temperature and pressure
|
||
3 0 0 0 0 0 !Number of terms in melting line equation
|
||
1.0 0.0 !Coefficients and exponents
|
||
966.603148 1.555
|
||
-966.603148 0.0
|
||
|
||
|
||
#SBL !---Sublimation line---
|
||
SB2 !Sublimation line model for sulfur hexafluoride of Guder and Wagner (2009).
|
||
:DOI: 10.1063/1.3037344
|
||
?
|
||
?```````````````````````````````````````````````````````````````````````````````
|
||
?Guder, C. and Wagner, W., 2009.
|
||
?
|
||
!```````````````````````````````````````````````````````````````````````````````
|
||
0. !
|
||
223.555 !Upper temperature limit [K]
|
||
0. !
|
||
0. !
|
||
223.555 231.429 !Reducing temperature and pressure
|
||
2 0 0 0 0 0 !Number of terms in sublimation line equation
|
||
-11.6942141 -1.07 !Coefficients and exponents
|
||
11.6942141 0.0 !Coefficients and exponents
|
||
|
||
|
||
#PS !---Vapor pressure---
|
||
PS5 !Vapor pressure equation for sulfur hexafluoride of Guder and Wagner (2009).
|
||
?
|
||
?```````````````````````````````````````````````````````````````````````````````
|
||
?Guder, C. and Wagner, W., 2009.
|
||
?
|
||
?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. !
|
||
318.7232 3754.983 !Reducing parameters
|
||
5 0 0 0 0 0 !Number of terms in equation
|
||
-7.09634642 1.0
|
||
1.676662 1.5
|
||
-2.3921599 2.5
|
||
5.86078302 4.0
|
||
-9.02978735 4.5
|
||
|
||
|
||
#DL !---Saturated liquid density---
|
||
DL6 !Saturated liquid density equation for sulfur hexafluoride of Guder and Wagner (2009).
|
||
?
|
||
?```````````````````````````````````````````````````````````````````````````````
|
||
?Guder, C. and Wagner, W., 2009.
|
||
?
|
||
?Functional Form: D=Dc*EXP[SUM(Ni*Theta^(ti/3))*Tc/T] 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. !
|
||
318.7232 5.0823174112 !Reducing parameters
|
||
4 0 0 0 0 0 !Number of terms in equation
|
||
2.31174688 1.065
|
||
-1.12912486 1.5
|
||
-1.439347 4.0
|
||
0.282489982 5.0
|
||
|
||
|
||
#DV !---Saturated vapor density---
|
||
DV6 !Saturated vapor density equation for sulfur hexafluoride of Guder and Wagner (2009).
|
||
?
|
||
?```````````````````````````````````````````````````````````````````````````````
|
||
?Guder, C. and Wagner, W., 2009.
|
||
?
|
||
?Functional Form: D=Dc*EXP[SUM(Ni*Theta^(ti/3))*Tc/T] 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. !
|
||
318.7232 5.0823174112 !Reducing parameters
|
||
6 0 0 0 0 0 !Number of terms in equation
|
||
23.68063442 1.044
|
||
0.513062232 0.5
|
||
-24.4706238 1.0
|
||
-4.6715244 2.0
|
||
-1.7536843 8.0
|
||
-6.65585369 17.0
|
||
|
||
|
||
@END
|
||
c 1 2 3 4 5 6 7 8
|
||
c2345678901234567890123456789012345678901234567890123456789012345678901234567890
|
||
@ETA !Viscosity model specification
|
||
VS0 pure fluid viscosity model of Altunin (1984).
|
||
?
|
||
?```````````````````````````````````````````````````````````````````````````````
|
||
?Altunin, V.V., "Equation for the viscosity of sulfur hexafluoride for a
|
||
? broad range of temperatures and presurs, Tr. MOsk., Energ. Inst., 1984,622, pp12-18
|
||
?
|
||
!```````````````````````````````````````````````````````````````````````````````
|
||
223.555 !Lower temperature limit [K]
|
||
625.0 !Upper temperature limit [K]
|
||
150000.0 !Upper pressure limit [kPa]
|
||
14.5 !Maximum density [mol/L]
|
||
SF6 !Pointer to hardcoded viscosity model
|
||
0 1 1 0 0 0 0 0 !Number of terms for various pieces
|
||
1.0 1.0 1.0 !Reducing parameters for T, rho, eta
|
||
0. 0. 0. 0. 0 !Dilute gas coeffs
|
||
0. 0. 0. 0. 0 !Residual coeffs
|
||
NUL !Pointer to the viscosity critical enhancement auxiliary function (none used)
|
||
|
||
|
||
#MLT !---Melting line---
|
||
ML1 !Melting line model for sulfur hexafluoride of Guder and Wagner (2009).
|
||
?
|
||
?```````````````````````````````````````````````````````````````````````````````
|
||
?Guder, C. and Wagner, W.
|
||
? "A Reference Equation of State for the Thermodynamic Properties of Sulfur
|
||
? Hexafluoride (SF6) for Temperatures from the Melting Line to 625 K and
|
||
? Pressures up to 150 MPa,"
|
||
? J. Phys. Chem. Ref. Data, 38(1):33-94, 2009.
|
||
?
|
||
!```````````````````````````````````````````````````````````````````````````````
|
||
223.555 !Lower temperature limit [K]
|
||
650.0 !Upper temperature limit [K]
|
||
0. !
|
||
0. !
|
||
223.555 231.429 !Reducing temperature and pressure
|
||
5 0 0 0 0 0 !Number of terms in melting line equation
|
||
1.0 0.0 !Coefficients and exponents
|
||
-30.0468473 -20.0
|
||
30.0468473 0.0
|
||
359.771253 3.25
|
||
-359.771253 0.0
|
||
|
||
|