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ThermophysicalData[CoolProp]

Property

access thermophysical fluid data

	Calling Sequence
	Property(output, fluid, inputopts, opts) Property(output, inputopts, fluid, opts)

Parameters

output	-	symbol or string for the desired output quantity
fluid	-	symbol or string representing the medium
inputopts	-	(optional) equations of the form quantity = value
opts	-	(optional) equation of the form useunits = true or useunits = false

Description

•	The Property function interrogates the CoolProp library for thermophysical data.

•

Property provides a uniform interface to the PropsSI, Props1SI, PhaseSI, and HAPropsSI commands in the CoolProp subpackage of the ThermophysicalData package. Those commands adhere relatively closely to the commands of the same name in interfaces to CoolProp in other programming languages. This command, on the other hand, conforms more closely to typical Maple calling sequences.

•

Most uses of this command require the use of two or three input options (represented by the inputopts argument in the calling sequence above). These are equations of the form quantity = value, where quantity is a name or string from one of the tables below, and value is a real constant, possibly with a unit. If a unit is given for a value, it will be converted to the appropriate SI unit from the table below. If you supply a unit with any of the quantities you submit, the answer will have the appropriate unit as well. This behavior can be overridden by using the useunits option: if you supply useunits = true (which can be shortened to just useunits), then the result will always have the appropriate unit, and if you supply useunits = false, the result will never have a unit.

•	The Property command works as follows.

–

If the fluid given is HumidAir, then this command redirects to the HAPropsSI command. In this case, you need to supply three inputopts equations (just as you need to supply three inputs to the HAPropsSI command). In the following table, quantities that have Input or Both in the Input / Output column can be used for quantity in an inputopts equation; quantities that have Output or Both in the Input / Output column can be used for the output parameter.

Quantity	Maple-specific aliases	Unit	Input / Output	Description
B, T_wb, Twb, WetBulb	temperature_wet_bulb, temperaturewetbulb	K	Both	Wet-Bulb Temperature
C, cp	specific_heat, specific_heat_per_dry_air, specificheat, specificheatperdryair	J/kg(dry_air)/K	Output	Mixture specific heat per unit dry air
Cha, cp_ha	specific_heat_per_humid_air, specificheatperhumidair	J/kg(humid_air)/K	Output	Mixture specific heat per unit humid air
CV	ha_quantity, haquantity	J/kg(dry_air)/K	Output	Mixture specific heat at constant volume per unit dry air
CVha, cv_ha	CVha, cv_ha	J/kg(humid_air)/K	Output	Mixture specific heat at constant volume per unit humid air
D, DewPoint, T_dp, Tdp	temperature_dew_point, temperaturedewpoint	K	Both	Dew-Point Temperature
Enthalpy, H, Hda	enthalpy, enthalpy_per_dry_air, enthalpyperdryair	J/kg(dry_air)	Both	Mixture enthalpy per dry air
Hha	enthalpy_per_humid_air, enthalpyperhumidair	J/kg(humid_air)	Both	Mixture enthalpy per humid air
Conductivity, K, k	thermal_conductivity, thermalconductivity	W/m/K	Output	Mixture thermal conductivity
M, Visc, mu	viscosity	Pa*s	Output	Mixture viscosity
Y, psi_w	water_fraction, water_mole_fraction, waterfraction, watermolefraction	mol(water)/mol(humid_air)	Both	Water mole fraction
P	pressure	Pa	Input	Pressure
P_w	water_vapor_pressure, water_vapour_pressure, watervaporpressure, watervapourpressure	Pa	Input	Partial pressure of water vapor
R, RH, RelHum	humidity, relative_humidity, relativehumidity	-	Both	Relative humidity in [0, 1]
Entropy, S, Sda	entropy, entropy_per_dry_air, entropyperdryair	J/kg(dry_air)/K	Both	Mixture entropy per unit dry air
Sha	entropy_per_humid_air, entropyperhumidair	J/kg(humid_air)/K	Both	Mixture entropy per unit humid air
T, T_db, Tdb	temperature_dry_bulb, temperaturedrybulb	K	Both	Dry-Bulb Temperature
V, Vda	volume, volume_per_dry_air, volumeperdryair	m^3/kg(dry_air)	Both	Mixture volume per unit dry air
Vha	volume_per_humid_air, volumeperhumidair	m^3/kg(humid_air)	Both	Mixture volume per unit humid air
HumRat, Omega, W	humidity_ratio, humidityratio	kg(water)/kg(dry_air)	Both	Humidity Ratio
Z	compressibility_factor, compressibilityfactor	-	Output	Compressibility factor ( $Z = \frac{p v}{R T}$ )

–

If the output parameter is PhaseString, then this command redirects to the PhaseSI command. In this case, you need to supply two inputopts equations (just as you need to supply two inputs to the PhaseSI command). This uses the same quantity names as the PropsSI command (see the following table). Quantities that have Yes in the Can be input column can be used for the quantity in an inputopts equation.

–	If there are no inputopts given, this command redirects to the Props1SI command. This uses the same quantity names as the Props1SI command. In the following table, the quantities that have No in the Needs input opts column can be used for the output parameter.

–	Otherwise, this command redirects to the PropsSI command, and you need to supply two inputopts equations (just as you need to supply two inputs to the PropsSI command). The following table lists the quantities that can be used for output and for the quantity in an inputopts equation.

Quantity	Maple-specific aliases	Unit	Can be input	Needs input opts	Description
DELTA, Delta	reduced_density, reduceddensity	-	Yes	Yes	Reduced density (rho/rhoc)
DMOLAR, Dmolar	molar_density, molardensity	mol/m^3	Yes	Yes	Molar density
D, DMASS, Dmass	density, mass_density, massdensity	kg/m^3	Yes	Yes	Mass density
HMOLAR, Hmolar	molar_specific_enthalpy, molarspecificenthalpy	J/mol	Yes	Yes	Molar specific enthalpy
H, HMASS, Hmass	enthalpy, mass_specific_enthalpy, massspecificenthalpy	J/kg	Yes	Yes	Mass specific enthalpy
P	pressure	Pa	Yes	Yes	Pressure
Q	mass_vapor_quality, mass_vapour_quality, massvaporquality, massvapourquality, vapor_quality, vaporquality, vapour_quality, vapourquality	-	Yes	Yes	Mass vapor quality
SMOLAR, Smolar	molar_specific_entropy, molarspecificentropy	J/mol/K	Yes	Yes	Molar specific entropy
S, SMASS, Smass	entropy, mass_specific_entropy, massspecificentropy	J/kg/K	Yes	Yes	Mass specific entropy
TAU, Tau	reciprocal_reduced_temperature, reciprocalreducedtemperature	-	Yes	Yes	Reciprocal reduced temperature (Tc/T)
T	temperature	K	Yes	Yes	Temperature
UMOLAR, Umolar	molar_specific_internal_energy, molarspecificinternalenergy	J/mol	Yes	Yes	Molar specific internal energy
U, UMASS, Umass	internal_energy, internalenergy, mass_specific_internal_energy, massspecificinternalenergy	J/kg	Yes	Yes	Mass specific internal energy
ACENTRIC, acentric	acentric_factor, acentricfactor	-	No	No	Acentric factor
ALPHA0, alpha0	ideal_helmholtz_energy, idealhelmholtzenergy	-	No	Yes	Ideal Helmholtz energy
ALPHAR, alphar	residual_helmholtz_energy, residualhelmholtzenergy	-	No	Yes	Residual Helmholtz energy
A, SPEED_OF_SOUND, speed_of_sound	speedofsound	m/s	No	Yes	Speed of sound
BVIRIAL, Bvirial	second_virial_coefficient, secondvirialcoefficient	-	No	Yes	Second virial coefficient
CONDUCTIVITY, L, conductivity	thermal_conductivity, thermalconductivity	W/m/K	No	Yes	Thermal conductivity
CP0MASS, Cp0mass	ideal_gas_mass_specific_constant_pressure_specific_heat, idealgasmassspecificconstantpressurespecificheat	J/kg/K	No	Yes	Ideal gas mass specific constant pressure specific heat
CP0MOLAR, Cp0molar	ideal_gas_molar_specific_constant_pressure_specific_heat, idealgasmolarspecificconstantpressurespecificheat	J/mol/K	No	Yes	Ideal gas molar specific constant pressure specific heat
CPMOLAR, Cpmolar	molar_specific_constant_pressure_specific_heat, molarspecificconstantpressurespecificheat	J/mol/K	No	Yes	Molar specific constant pressure specific heat
CVIRIAL, Cvirial	third_virial_coefficient, thirdvirialcoefficient	-	No	Yes	Third virial coefficient
CVMASS, Cvmass, O	mass_specific_constant_volume_specific_heat, massspecificconstantvolumespecificheat	J/kg/K	No	Yes	Mass specific constant volume specific heat
CVMOLAR, Cvmolar	molar_specific_constant_volume_specific_heat, molarspecificconstantvolumespecificheat	J/mol/K	No	Yes	Molar specific constant volume specific heat
C, CPMASS, Cpmass	mass_specific_constant_pressure_specific_heat, massspecificconstantpressurespecificheat	J/kg/K	No	Yes	Mass specific constant pressure specific heat
DALPHA0_DDELTA_CONSTTAU, dalpha0_ddelta_consttau	d_ideal_helmholtz_energy_d_delta	-	No	Yes	Derivative of ideal Helmholtz energy with delta
DALPHA0_DTAU_CONSTDELTA, dalpha0_dtau_constdelta	d_ideal_helmholtz_energy_d_tau	-	No	Yes	Derivative of ideal Helmholtz energy with tau
DALPHAR_DDELTA_CONSTTAU, dalphar_ddelta_consttau	d_residual_helmholtz_energy_d_delta	-	No	Yes	Derivative of residual Helmholtz energy with delta
DALPHAR_DTAU_CONSTDELTA, dalphar_dtau_constdelta	d_residual_helmholtz_energy_d_tau	-	No	Yes	Derivative of residual Helmholtz energy with tau
DBVIRIAL_DT, dBvirial_dT	d_second_virial_coefficient_d_temperature	-	No	Yes	Derivative of second virial coefficient with respect to T
DCVIRIAL_DT, dCvirial_dT	d_third_virial_coefficient_d_temperature	-	No	Yes	Derivative of third virial coefficient with respect to T
DIPOLE_MOMENT, dipole_moment	dipole_moment, dipolemoment	C*m	No	No	Dipole moment
FH	flammability_hazard, flammabilityhazard	-	No	No	Flammability hazard
FRACTION_MAX, fraction_max	fractionmax	-	No	No	Fraction (mole, mass, volume) maximum value for incompressible solutions
FRACTION_MIN, fraction_min	fractionmin	-	No	No	Fraction (mole, mass, volume) minimum value for incompressible solutions
FUNDAMENTAL_DERIVATIVE_OF_GAS_DYNAMICS, fundamental_derivative_of_gas_dynamics	fundamentalderivativeofgasdynamics	-	No	Yes	Fundamental derivative of gas dynamics
GAS_CONSTANT, gas_constant	gasconstant	J/mol/K	No	No	Molar gas constant
GMOLAR_RESIDUAL, Gmolar_residual	gmolar_residual	J/mol/K	No	Yes	Residual molar Gibbs energy
GMOLAR, Gmolar	molar_specific_gibbs_energy, molarspecificgibbsenergy	J/mol	No	Yes	Molar specific Gibbs energy
GWP100	global_warming_potential_100, globalwarmingpotential100	-	No	No	100-year global warming potential
GWP20	global_warming_potential_20, globalwarmingpotential20	-	No	No	20-year global warming potential
GWP500	global_warming_potential_500, globalwarmingpotential500	-	No	No	500-year global warming potential
G, GMASS, Gmass	gibbs_energy, gibbsenergy, mass_specific_gibbs_energy, massspecificgibbsenergy	J/kg	No	Yes	Mass specific Gibbs energy
HELMHOLTZMASS, Helmholtzmass	helmholtz_mass, helmholtzmass	J/kg	No	Yes	Mass specific Helmholtz energy
HELMHOLTZMOLAR, Helmholtzmolar	helmholtz_molar, helmholtzmolar	J/mol	No	Yes	Molar specific Helmholtz energy
HH	health_hazard, healthhazard	-	No	No	Health hazard
HMOLAR_RESIDUAL, Hmolar_residual	hmolar_residual	J/mol/K	No	Yes	Residual molar enthalpy
ISENTROPIC_EXPANSION_COEFFICIENT, isentropic_expansion_coefficient	isentropicexpansioncoefficient	-	No	Yes	Isentropic expansion coefficient
ISOBARIC_EXPANSION_COEFFICIENT, isobaric_expansion_coefficient	isobaricexpansioncoefficient	1/K	No	Yes	Isobaric expansion coefficient
ISOTHERMAL_COMPRESSIBILITY, isothermal_compressibility	isothermalcompressibility	1/Pa	No	Yes	Isothermal compressibility
I, SURFACE_TENSION, surface_tension	surfacetension	N/m	No	Yes	Surface tension
M, MOLARMASS, MOLAR_MASS, MOLEMASS, molar_mass, molarmass, molemass	-	kg/mol	No	No	Molar mass
ODP	ozone_depletion_potential, ozonedepletionpotential	-	No	No	Ozone depletion potential
PCRIT, P_CRITICAL, Pcrit, p_critical, pcrit	pcritical	Pa	No	No	Pressure at the critical point
PHASE, Phase	phase	-	No	Yes	Phase index as a float
PH	physical_hazard, physicalhazard	-	No	No	Physical hazard
PIP	phase_identification, phase_identification_parameter	-	No	Yes	Phase identification parameter
PMAX, P_MAX, P_max, pmax	p_max, pressure_max, pressuremax	Pa	No	No	Maximum pressure limit
PMIN, P_MIN, P_min, pmin	p_min, pressure_min, pressuremin	Pa	No	No	Minimum pressure limit
PRANDTL, Prandtl	prandtl	-	No	Yes	Prandtl number
PTRIPLE, P_TRIPLE, p_triple, ptriple	pressure_triple, pressuretriple	Pa	No	No	Pressure at the triple point (pure only)
P_REDUCING, p_reducing	preducing, pressure_reducing, pressurereducing	Pa	No	No	Pressure at the reducing point
RHOCRIT, RHOMASS_CRITICAL, rhocrit, rhomass_critical	density_critical, densitycritical	kg/m^3	No	No	Mass density at critical point
RHOMASS_REDUCING, rhomass_reducing	density_reducing, densityreducing, mass_density_reducing, massdensityreducing	kg/m^3	No	No	Mass density at reducing point
RHOMOLAR_CRITICAL, rhomolar_critical	molar_density_critical, molardensitycritical	mol/m^3	No	No	Molar density at critical point
RHOMOLAR_REDUCING, rhomolar_reducing	molar_density_reducing, molardensityreducing	mol/m^3	No	No	Molar density at reducing point
SMOLAR_RESIDUAL, Smolar_residual	residual_molar_entropy, smolar_residual, smolarresidual	J/mol/K	No	Yes	Residual molar entropy (sr/R = s(T,rho) - s^0(T,rho))
TCRIT, T_CRITICAL, T_critical, Tcrit	temperature_critical, temperaturecritical	K	No	No	Temperature at the critical point
TMAX, T_MAX, T_max, Tmax	temperature_max, temperaturemax	K	No	No	Maximum temperature limit
TMIN, T_MIN, T_min, Tmin	temperature_min, temperaturemin	K	No	No	Minimum temperature limit
TTRIPLE, T_TRIPLE, T_triple, Ttriple	temperature_triple, temperaturetriple	K	No	No	Temperature at the triple point
T_FREEZE, T_freeze	temperature_freeze, temperature_freezing, temperaturefreeze, temperaturefreezing	K	No	No	Freezing temperature for incompressible solutions
T_REDUCING, T_reducing	temperature_reducing, temperaturereducing	K	No	No	Temperature at the reducing point
V, VISCOSITY, viscosity	-	Pa*s	No	Yes	Viscosity
Z	compressibility_factor, compressibilityfactor	-	No	Yes	Compressibility factor

•

Up to Maple 2017, this command was available as ThermophysicalData[Property]. With the introduction of the ThermophysicalData[Chemicals] package as a second data source for Maple 2018, that command was rewritten so that it can now redirect either to this command, i.e., ThermophysicalData[CoolProp][Property], or to ThermophysicalData[Chemicals][Property].

Examples

>	$with (ThermophysicalData [CoolProp]) &colon;$

What is the density of water at 300 kelvin and a pressure of 1 atmosphere? (This example redirects to the PropsSI procedure.)

>	$Property (density, temperature = 300, pressure = 1 Unit (atm), Water)$

$996.5569353 ⟦\frac{kg}{m^{3}}⟧$

(1)

You can see the redirection (for the following commands) if you set the value of the variable infolevel[ThermophysicalData] to two (or more).

>	$infolevel [ThermophysicalData] ≔ 2 &colon;$

We can give the inputs before or after specifying the fluid.

>	$Property (density, Water, temperature = 300 Unit (kelvin), pressure = 101325)$