R410A !Short name 410A-410A !CAS number 50% R32/50% R125 !Full name R410A !Chemical formula R410A !Synonym 72.5854 !Molar mass [g/mol] 200.0 !Triple point temperature [K] 221.71 !Normal boiling point [K] 344.494 !Critical temperature [K] 4901.2 !Critical pressure [kPa] 6.324 !Critical density [mol/L] 0.296 !Acentric factor -1. !Dipole moment [Debye] IIR !Default reference state 10.0 !Version number ???? !UN Number :UN: halocb !Family :Family: ???? !Heating value (upper) at 25 C [kJ/mol] (ISO 6976:2016) :Heat: ???? !IUPAC Int. Chemical Identifier :InChi: ???? !InChi Key :InChiKey: ???? !Alternative fluid for mixing rules :AltID: 410a410a !Hash number from InChI Key :Hash: ! compiled by E.W. Lemmon, NIST Physical and Chemical Properties Division, Boulder, Colorado ! 05-06-02 EWL, original version ! 12-16-02 EWL, add final equation ________________________________________________________________________________ #EOS !---Equation of state--- FEQ !Helmholtz equation of state for R-410A of Lemmon (2003). :DOI: 10.1023/A:1025048800563 ? ?``````````````````````````````````````````````````````````````````````````````` ?Lemmon, E.W., ? "Pseudo Pure-Fluid Equations of State for the Refrigerant Blends R-410A, ? R-404A, R-507A, and R-407C," ? Int. J. Thermophys., 24(4):991-1006, 2003. ? ?The estimated uncertainty of density values calculated with the ? equation of state is 0.1%. The estimated uncertainty of calculated ? heat capacities and speed of sound values is 0.5%. Uncertainties of ? bubble and dew point pressures are 0.5%. ? !``````````````````````````````````````````````````````````````````````````````` 200.0 !Lower temperature limit [K] 500.0 !Upper temperature limit [K] 50000.0 !Upper pressure limit [kPa] 19.51 !Maximum density [mol/L] CPP !Pointer to Cp0 model 72.5854 !Molar mass [g/mol] 200.0 !Triple point temperature [K] 29.16 !Pressure at triple point [kPa] 19.51 !Density at triple point [mol/L] 221.71 !Normal boiling point temperature [K] 0.296 !Acentric factor 344.494 4901.2 6.324 !Tc [K], pc [kPa], rhoc [mol/L] 344.494 6.324 !Reducing parameters [K, mol/L] 8.314472 !Gas constant [J/mol-K] 21 4 0 0 0 0 0 0 0 0 0 0 !# terms and # coefs/term for normal terms, Gaussian terms, and Gao terms 0.987252 0.44 1. 0. !a(i),t(i),d(i),l(i) -1.03017 1.2 1. 0. 1.17666 2.97 1. 0. -0.138991 2.95 2. 0. 0.00302373 0.2 5. 0. -2.53639 1.93 1. 1. -1.9668 1.78 2. 1. -0.830480 3.0 3. 1. 0.172477 0.2 5. 1. -0.261116 0.74 5. 1. -0.0745473 3.0 5. 1. 0.679757 2.1 1. 2. -0.652431 4.3 1. 2. 0.0553849 0.25 4. 2. -0.0710970 7.0 4. 2. -0.000875332 4.7 9. 2. 0.0200760 13.0 2. 3. -0.0139761 16.0 2. 3. -0.0185110 25.0 4. 3. 0.0171939 17.0 5. 3. -0.00482049 7.4 6. 3. #AUX !---Auxiliary function for Cp0 CPP !Ideal gas heat capacity function for R410A of Lemmon (2003). ? ?``````````````````````````````````````````````````````````````````````````````` ?Lemmon, E.W. ? !``````````````````````````````````````````````````````````````````````````````` 0. ! 10000. ! 0. ! 0. ! 1.0 8.314472 !Reducing parameters for T, Cp0 1 3 0 0 0 0 0 !Nterms: polynomial, exponential, cosh, sinh 2.8749 0.1 2.0623 697.0 5.9751 1723.0 1.5612 3875.0 #AUX !---Auxiliary function for PH0 PH0 !Ideal gas Helmholtz form for R410A. ? ?``````````````````````````````````````````````````````````````````````````````` ?Lemmon, E.W. ? !``````````````````````````````````````````````````````````````````````````````` 0. ! 10000. ! 0. ! 0. ! 1 3 3 0 0 0 0 0 !Nterms: ai*log(tau**ti); ai*tau**ti; ai*log(1-exp(bi*tau)) -1.0 1.0 !ai, ti for [ai*log(tau**ti)] terms 36.8871 0.0 !aj, ti for [ai*tau**ti] terms 7.15807 1.0 -46.87575 -0.1 2.0623 -2.02326 !aj, ti for [ai*log(1-exp(ti*tau)] terms 5.9751 -5.00154 1.5612 -11.2484 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ #STN !---Surface tension--- ST1 !Surface tension model for R410A of Lemmon (2003). ? ?``````````````````````````````````````````````````````````````````````````````` ?Lemmon, E.W., preliminary equation, 2003. ? !``````````````````````````````````````````````````````````````````````````````` 0. ! 10000. ! 0. ! 0. ! 1 !Number of terms in surface tension model 344.494 !Critical temperature used in fit (dummy) 0.06443 1.245 !Sigma0 and n #PS !---Vapor pressure--- PS5 !Vapor pressure equation for R410A of Lemmon (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. ! 344.494 4901.2 !Reducing parameters 4 0 0 0 0 0 !Number of terms in equation -7.4411 1.0 1.9883 1.6 -2.4925 2.4 -3.2633 5.0 #PL !---Liquid pressure--- PL5 !Liquid pressure equation for R410A of Lemmon (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. ! 344.494 4901.2 !Reducing parameters 4 0 0 0 0 0 !Number of terms in equation -7.2818 1.0 2.5093 1.8 -3.2695 2.4 -2.8022 4.9 @END c 1 2 3 4 5 6 7 8 c2345678901234567890123456789012345678901234567890123456789012345678901234567890