A CoolProp wrapper for Excel in engineering units

Installation

The latest release is available for a portable standalone version.

After downloading, extract the zip file with the contents; Coolprop.dll, CoolpropWrapper.dll, CoolpropWrapper.xll and CoolPropWrapper.dna, place the four files together in the directory of your choice. Finally import in Excel the .xll file via: File (Archivo) -> Options (Opciones) -> Addins (Complementos) -> Import (Ir...) -> Browse... (Examinar...) and select the .xll file.

Usage

CoolPropWrapper allows you to compute thermodynamic properties of real fluids and humid air using CoolProp in Excel. The wrapper uses standard CoolProp function names with support for both engineering and SI units. All functions support case-insensitive parameter names for flexibility.

• Engineering Units (default): Temperature in °C, Pressure in bar, Energy in kJ/kg, etc.
• SI Units: Temperature in K, Pressure in Pa, Energy in J/kg, etc.

Real Fluid Functions

Props(output, name1, value1, name2, value2, fluid)

• Computes thermodynamic properties of real fluids using engineering units.
• Standard CoolProp function with engineering units instead of SI.
• Supports Excel range inputs - any numeric parameter can be a cell range, and the function will automatically calculate results for all values and spill them as an array.
• Units used:
  • Temperature: Celsius (°C) (converted internally to Kelvin (K))
  • Pressure: bar (converted internally to Pascal (Pa))
  • Enthalpy, Internal Energy, Entropy: kJ/kg (converted internally to J/kg)
  • Specific Heat: kJ/kg/K (converted internally to J/kg/K)

PropsSI(output, name1, value1, name2, value2, fluid)

• Computes thermodynamic properties of real fluids using SI units (no conversion).
• Standard CoolProp function.
• Supports Excel range inputs - any numeric parameter can be a cell range, and the function will automatically calculate results for all values and spill them as an array.
• Units used:
  • Temperature: Kelvin (K)
  • Pressure: Pascal (Pa)
  • Enthalpy, Internal Energy, Entropy: J/kg
  • Specific Heat: J/kg/K

Props1(output, fluid) and Props1SI(output, fluid)

• Computes single-input properties (critical properties, molar mass, etc.)
• Props1 returns values in engineering units (°C, bar)
• Props1SI returns values in SI units (K, Pa)

Phase(name1, value1, name2, value2, fluid) and PhaseSI(...)

• Determines the phase of a fluid at given conditions
• Phase accepts inputs in engineering units (°C, bar)
• PhaseSI accepts inputs in SI units (K, Pa)
• Returns phase string: "liquid", "gas", "supercritical", "twophase", etc.

Example Usage:

=Props("H", "T", 25, "P", 1.01325, "Water")

This will return the enthalpy (H) of water at 25°C and 1.01325 bar in kJ/kg.

For SI units:

=PropsSI("H", "T", 298.15, "P", 101325, "Water")

This will return the enthalpy (H) of water at 298.15 K and 101325 Pa in J/kg.

Array calculations - compute properties for multiple values at once:

=Props("H", "T", 25, "P", A1:A10, "Water")

This will return an array of 10 enthalpy values, one for each pressure in the range A1:A10, automatically spilling the results to adjacent cells below (column orientation).

Row arrays - when the input is a row range, the output will also spill horizontally:

=Props("H", "T", 25, "P", A1:J1, "Water")

This will return a row of 10 enthalpy values, spilling horizontally across columns.

Multiple array inputs - when using multiple ranges, they must have the same length:

=Props("H", "T", B1:B10, "P", A1:A10, "Water")

This will compute 10 enthalpy values using paired temperatures from B1:B10 and pressures from A1:A10.

Mixed scalar and array inputs:

=Props("H", "P", 1.01325, "T", A1:A5, "Water")

The scalar pressure value (1.01325 bar) will be used for all 5 temperature values in A1:A5.

Single-input properties:

=Props1("Tcrit", "Water")

Returns the critical temperature of water in °C (approximately 373.95°C).

=Props1("Tcrit", "R410A")

Returns the critical temperature of R410A in °C (approximately 71.35°C, which is 344.5 K in SI units).

=Props1("Pcrit", "Water")

Returns the critical pressure of water in bar (approximately 220.6 bar).

Phase determination:

=Phase("T", 25, "P", 1.01325, "Water")

Returns "liquid" for water at 25°C and 1.01325 bar.

It can be used in a parametric way for convenience and efficient calculations. This allows for modular approaches, being able to reuse part of the calculations, drag the formulas, etc.

For example using:

=Props(E1,B1,B2,C1,C2,A2)

Humid Air Functions

HAProps(output, name1, value1, name2, value2, name3, value3)

• Computes thermodynamic properties of humid air using engineering units.
• Standard CoolProp function with engineering units instead of SI.
• Supports Excel range inputs - any numeric parameter can be a cell range, and the function will automatically calculate results for all values and spill them as an array.
• Units used:
  • Temperature: Celsius (°C) (converted internally to Kelvin (K))
  • Pressure: bar (converted internally to Pascal (Pa))
  • Enthalpy, Specific Heat, Entropy: kJ/kg (converted internally to J/kg)
  • Humidity Ratio: kg_water/kg_dry_air

HAPropsSI(output, name1, value1, name2, value2, name3, value3)

• Computes thermodynamic properties of humid air using SI units (no conversion).
• Standard CoolProp function.
• Supports Excel range inputs - any numeric parameter can be a cell range, and the function will automatically calculate results for all values and spill them as an array.
• Units used:
  • Temperature: Kelvin (K)
  • Pressure: Pascal (Pa)
  • Enthalpy, Specific Heat, Entropy: J/kg
  • Humidity Ratio: kg_water/kg_dry_air

Example Usage:

=HAProps("W", "T", 25, "P", 1.01325, "R", 0.5)

This will return the humidity ratio (W) for air at 25°C, 1.01325 bar, and 50% relative humidity.

For SI units:

=HAPropsSI("W", "T", 298.15, "P", 101325, "R", 0.5)

This will return the humidity ratio (W) for air at 298.15 K, 101325 Pa, and 50% relative humidity.

Array calculations - compute humid air properties for multiple values:

=HAProps("W", "T", A1:A10, "P", 1.01325, "R", 0.5)

This will return an array of 10 humidity ratio values, one for each temperature in A1:A10, spilling vertically.

Row arrays - when the input is a row range, the output will also spill horizontally:

=HAProps("W", "T", A1:J1, "P", 1.01325, "R", 0.5)

This will return a row of 10 humidity ratio values, spilling horizontally across columns.

Multiple array inputs - all ranges must have the same length:

=HAProps("Hda", "T", A1:A5, "P", 1.01325, "R", B1:B5)

This will compute 5 enthalpy values using paired temperatures from A1:A5 and relative humidities from B1:B5.

Additional Functions

GetGlobalParam(param)

• Retrieves global CoolProp parameters
• Example: =GetGlobalParam("version") returns the CoolProp version
• Example: =GetGlobalParam("gitrevision") returns the Git revision

GetFluidParam(fluid, param)

• Retrieves fluid-specific parameters
• Example: =GetFluidParam("Water", "formula") returns "H2O"
• Example: =GetFluidParam("Water", "CAS") returns CAS registry number

MixtureString(elements, fractions)

• Creates a mixture string for CoolProp from element names and their mole/mass fractions
• Example: =MixtureString(A1:A2, B1:B2) where A1:A2 contains ["R32", "R125"] and B1:B2 contains [0.5, 0.5]
• Returns: "HEOS::R32[0.5]&R125[0.5]"

Diagnostic Function

CPropDiag()

• Diagnostic function to check CoolProp DLL loading paths.
• Returns information about where the add-in is searching for CoolProp.dll and whether it was found.
• Useful for troubleshooting installation issues.

Function Summary

Function	Description	Units
Props	Real fluid properties	Engineering (°C, bar, kJ/kg)
PropsSI	Real fluid properties	SI (K, Pa, J/kg)
Props1	Single-input properties	Engineering (°C, bar)
Props1SI	Single-input properties	SI (K, Pa)
Phase	Phase determination	Engineering (°C, bar)
PhaseSI	Phase determination	SI (K, Pa)
HAProps	Humid air properties	Engineering (°C, bar, kJ/kg)
HAPropsSI	Humid air properties	SI (K, Pa, J/kg)
GetGlobalParam	Get CoolProp global parameters	N/A
GetFluidParam	Get fluid-specific parameters	N/A
MixtureString	Create mixture strings	N/A
CPropDiag	Diagnostic tool	N/A

Available Properties and Aliases

All parameter names are case-insensitive. You can type them in any combination of uppercase/lowercase.

Property	Aliases	Description	Units in Add-in	SI/CoolProp Units
T	t, temp, temperature	Temperature	°C	K
P	p, pres, pressure	Pressure	bar	Pa
H	h, enth, enthalpy, Hmass	Mass-specific enthalpy	kJ/kg	J/kg
S	s, entr, entropy, Smass	Mass-specific entropy	kJ/kg/K	J/kg/K
U	u, internalenergy, Umass	Mass-specific internal energy	kJ/kg	J/kg
D	rho, dens, Dmass	Mass density	kg/m³	kg/m³
Q	q, quality, x	Vapor quality (0=liquid, 1=vapor)	-	-
Cpmass	cp, cpmass	Mass-specific constant pressure heat	kJ/kg/K	J/kg/K
Cvmass	cv, cvmass	Mass-specific constant volume heat	kJ/kg/K	J/kg/K
A	speed_of_sound	Speed of sound	m/s	m/s
MU	mu, viscosity	Dynamic viscosity	Pa·s	Pa·s
K	k, conductivity	Thermal conductivity	W/m/K	W/m/K
Tcrit	pcrit, T_critical	Critical temperature	°C	K
Pcrit	p_critical	Critical pressure	bar	Pa
MM	molar_mass	Molar mass	kg/mol	kg/mol

Humid Air Properties

Property	Aliases	Description	Units in Add-in	SI/CoolProp Units
T	t, Tdb, T_db	Dry bulb temperature	°C	K
Twb	T_wb, wetbulb	Wet bulb temperature	°C	K
Tdp	dewpoint, T_dp	Dew point temperature	°C	K
P	p	Atmospheric pressure	bar	Pa
P_w		Water vapor partial pressure	bar	Pa
R	rh, RH, relhum	Relative humidity (0-1)	-	-
W	omega, humrat	Humidity ratio (kg water/kg dry air)	kg/kg	kg/kg
Hha		Humid air enthalpy per kg dry air	kJ/kg	J/kg
Hda		Dry air enthalpy per kg dry air	kJ/kg	J/kg
Vha		Humid air specific volume	m³/kg	m³/kg
Dha	rhoha	Humid air density	kg/m³	kg/m³
Cha	Cpha	Humid air specific heat	kJ/kg/K	J/kg/K

Available Fluids

Pure Fluids

1-Butene, Acetone, Air, Ammonia, Argon, Benzene, CarbonDioxide, CarbonMonoxide, CarbonylSulfide, cis-2-Butene, CycloHexane, Cyclopentane, CycloPropane, D4, D5, D6, Deuterium, Dichloroethane, DiethylEther, DimethylCarbonate, DimethylEther, Ethane, Ethanol, EthylBenzene, Ethylene, EthyleneOxide, Fluorine, HeavyWater, Helium, HFE143m, Hydrogen, HydrogenChloride, HydrogenSulfide, IsoButane, IsoButene, Isohexane, Isopentane, Krypton, m-Xylene, MD2M, MD3M, MD4M, MDM, Methane, Methanol, MethylLinoleate, MethylLinolenate, MethylOleate, MethylPalmitate, MethylStearate, MM, n-Butane, n-Decane, n-Dodecane, n-Heptane, n-Hexane, n-Nonane, n-Octane, n-Pentane, n-Propane, n-Undecane, Neon, Neopentane, Nitrogen, NitrousOxide, Novec649, o-Xylene, OrthoDeuterium, OrthoHydrogen, Oxygen, p-Xylene, ParaDeuterium, ParaHydrogen, Propylene, Propyne, R11, R113, R114, R115, R116, R12, R123, R1233zd(E), R1234yf, R1234ze(E), R1234ze(Z), R124, R125, R13, R134a, R13I1, R14, R141b, R142b, R143a, R152A, R161, R21, R218, R22, R227EA, R23, R236EA, R236FA, R245ca, R245fa, R32, R365MFC, R40, R404A, R407C, R41, R410A, R507A, RC318, SES36, SulfurDioxide, SulfurHexafluoride, Toluene, trans-2-Butene, Water, Xenon

Predefined Mixtures

Air.mix, Amarillo.mix, Ekofisk.mix, GulfCoast.mix, GulfCoastGas(NIST1).mix, HighCO2.mix, HighN2.mix, NaturalGasSample.mix, R401A.mix, R401B.mix, R401C.mix, R402A.mix, R402B.mix, R403A.mix, R403B.mix, R404A.mix, R405A.mix, R406A.mix, R407A.mix, R407B.mix, R407C.mix, R407D.mix, R407E.mix, R407F.mix, R408A.mix, R409A.mix, R409B.mix, R410A.mix, R410B.mix, R411A.mix, R411B.mix, R412A.mix, R413A.mix, R414A.mix, R414B.mix, R415A.mix, R415B.mix, R416A.mix, R417A.mix, R417B.mix, R417C.mix, R418A.mix, R419A.mix, R419B.mix, R420A.mix, R421A.mix, R421B.mix, R422A.mix, R422B.mix, R422C.mix, R422D.mix, R422E.mix, R423A.mix, R424A.mix, R425A.mix, R426A.mix, R427A.mix, R428A.mix, R429A.mix, R430A.mix, R431A.mix, R432A.mix, R433A.mix, R433B.mix, R433C.mix, R434A.mix, R435A.mix, R436A.mix, R436B.mix, R437A.mix, R438A.mix, R439A.mix, R440A.mix, R441A.mix, R442A.mix, R443A.mix, R444A.mix, R444B.mix, R445A.mix, R446A.mix, R447A.mix, R448A.mix, R449A.mix, R449B.mix, R450A.mix, R451A.mix, R451B.mix, R452A.mix, R453A.mix, R454A.mix, R454B.mix, R500.mix, R501.mix, R502.mix, R503.mix, R504.mix, R507A.mix, R508A.mix, R508B.mix, R509A.mix, R510A.mix, R511A.mix, R512A.mix, R513A.mix, TypicalNaturalGas.mix

You can also use CoolProp's mixture notation for custom mixtures, e.g., "R32[0.5]&R125[0.5]" for a 50/50 mix.

Unfold for a complete list of accepted inputs

Complete Parameter Reference

Props/PropsSI/Props1/Props1SI Parameters

All parameters are case-insensitive. The following table shows all recognized parameter variations:

Output Name	All Accepted Aliases (case-insensitive)	Description	Units (Props)	Units (PropsSI)
T	T, TEMP, TEMPERATURE	Temperature	°C	K
P	P, PRES, PRESSURE	Pressure	bar	Pa
D	D, RHO, DENS, DENSITY, DMASS, D_MASS, RHOMASS	Mass density	kg/m³	kg/m³
Dmolar	DMOLAR, RHOMOLAR, DMOL, D_MOL, D_MOLAR	Molar density	mol/m³	mol/m³
H	H, ENTH, ENTHALPY, HMASS, H_MASS	Mass specific enthalpy	kJ/kg	J/kg
Hmolar	HMOLAR, H_MOLAR	Molar specific enthalpy	kJ/mol	J/mol
S	S, ENTR, ENTROPY, SMASS, S_MASS	Mass specific entropy	kJ/(kg·K)	J/(kg·K)
Smolar	SMOLAR, S_MOLAR	Molar specific entropy	kJ/(mol·K)	J/(mol·K)
Smolar_residual	SMOLAR_RESIDUAL, SMOLARRESIDUAL	Residual molar entropy	kJ/(mol·K)	J/(mol·K)
U	U, INTERNALENERGY, UMASS, U_MASS	Mass specific internal energy	kJ/kg	J/kg
Umolar	UMOLAR, U_MOLAR	Molar specific internal energy	kJ/mol	J/mol
Q	Q, QUALITY, X, VAPORFRACTION, VAPOR_FRACTION	Vapor quality (0=liquid, 1=vapor)	-	-
Cpmass	CPMASS, CP, C	Mass specific heat (constant P)	kJ/(kg·K)	J/(kg·K)
Cvmass	CVMASS, CV	Mass specific heat (constant V)	kJ/(kg·K)	J/(kg·K)
Cpmolar	CPMOLAR, CPMOL	Molar specific heat (constant P)	kJ/(mol·K)	J/(mol·K)
Cvmolar	CVMOLAR, CVMOL	Molar specific heat (constant V)	kJ/(mol·K)	J/(mol·K)
Cp0mass	CP0MASS	Ideal gas mass specific heat	kJ/(kg·K)	J/(kg·K)
Cp0molar	CP0MOLAR	Ideal gas molar specific heat	kJ/(mol·K)	J/(mol·K)
G	G, GMASS, GIBBS	Mass specific Gibbs energy	kJ/kg	J/kg
Gmolar	GMOLAR	Molar specific Gibbs energy	kJ/mol	J/mol
A	A, SPEED_OF_SOUND, SPEEDOFSOUND, W	Speed of sound	m/s	m/s
viscosity	MU, VISCOSITY, V	Dynamic viscosity	Pa·s	Pa·s
conductivity	K, CONDUCTIVITY, L	Thermal conductivity	W/(m·K)	W/(m·K)
surface_tension	SURFACE_TENSION, SURFACETENSION, SIGMA, I	Surface tension	N/m	N/m
Z	Z, COMPRESSIBILITY, COMPRESSIBILITYFACTOR	Compressibility factor	-	-
Prandtl	PRANDTL	Prandtl number	-	-
Tau	TAU	Reduced reciprocal temperature (Tc/T)	-	-
Delta	DELTA	Reduced density (ρ/ρc)	-	-
Alpha0	ALPHA0	Ideal Helmholtz energy	-	-
Alphar	ALPHAR	Residual Helmholtz energy	-	-
HELMHOLTZMASS	HELMHOLTZMASS, HH	Mass specific Helmholtz energy	J/kg	J/kg
HELMHOLTZMOLAR	HELMHOLTZMOLAR	Molar specific Helmholtz energy	J/mol	J/mol
Bvirial	BVIRIAL	Second virial coefficient	-	-
Cvirial	CVIRIAL	Third virial coefficient	-	-
DBVIRIAL_DT	DBVIRIAL_DT, DBVIRIAL, DBVIRIALDT	Derivative of 2nd virial coeff w.r.t. T	-	-
DCVIRIAL_DT	DCVIRIAL_DT, DCVIRIAL, DCVIRIALDT	Derivative of 3rd virial coeff w.r.t. T	-	-
isentropic_expansion_coefficient	GAMMA, ISENTROPICEXPANSIONCOEFFICIENT	Isentropic expansion coefficient	-	-
isobaric_expansion_coefficient	ISOBARIC_EXPANSION_COEFFICIENT, ISOBARICEXPANSION, ISOBARICEXPANSIONCOEFFICIENT	Isobaric expansion coefficient	1/K	1/K
isothermal_compressibility	ISOTHERMAL_COMPRESSIBILITY, ISOTHERMALCOMPRESSIBILITY	Isothermal compressibility	1/Pa	1/Pa
fundamental_derivative_of_gas_dynamics	FUNDAMENTAL_DERIVATIVE_OF_GAS_DYNAMICS, FUNDAMENTALDERIVATIVE, FH	Fundamental derivative of gas dynamics	-	-
acentric	ACENTRIC, ACENTRIC_FACTOR, ACENTRICFACTOR, OMEGA	Acentric factor	-	-
DIPOLE_MOMENT	DIPOLE_MOMENT, DIPOLEMOMENT, DIPOLE	Dipole moment	C·m	C·m
gas_constant	GAS_CONSTANT, GASCONSTANT	Molar gas constant	J/(mol·K)	J/(mol·K)
M	MM, MOLAR_MASS, MOLARMASS, MOLEMASS	Molar mass	kg/mol	kg/mol
Tcrit	TCRIT, T_CRITICAL, TCRITICAL	Critical temperature	°C	K
Pcrit	PCRIT, P_CRITICAL, PCRITICAL	Critical pressure	bar	Pa
rhocrit	RHOCRIT, RHOCRITICAL, DCRIT	Mass density at critical point	kg/m³	kg/m³
rhomass_critical	RHOMASS_CRITICAL, RHOMASSCRITICAL	Mass density at critical point	kg/m³	kg/m³
rhomolar_critical	RHOMOLAR_CRITICAL, RHOMOLARCRITICAL	Molar density at critical point	mol/m³	mol/m³
Tmax	TMAX, T_MAX	Maximum temperature limit	°C	K
Tmin	TMIN, T_MIN	Minimum temperature limit	°C	K
pmax	PMAX, P_MAX	Maximum pressure limit	bar	Pa
pmin	PMIN, P_MIN	Minimum pressure limit	bar	Pa
Ttriple	TTRIPLE, T_TRIPLE, TTRIP	Triple point temperature	°C	K
ptriple	PTRIPLE, P_TRIPLE, PTRIP	Triple point pressure	bar	Pa
T_freeze	T_FREEZE, TFREEZE, FREEZING_TEMPERATURE	Freezing temperature	°C	K
T_reducing	T_REDUCING, TREDUCING	Reducing point temperature	°C	K
p_reducing	P_REDUCING, PREDUCING	Reducing point pressure	bar	Pa
rhomass_reducing	RHOMASS_REDUCING, RHOMASSREDUCING	Mass density at reducing point	kg/m³	kg/m³
rhomolar_reducing	RHOMOLAR_REDUCING, RHOMOLARREDUCING	Molar density at reducing point	mol/m³	mol/m³
fraction_max	FRACTION_MAX, FRACTIONMAX	Maximum fraction for incompressible solutions	-	-
fraction_min	FRACTION_MIN, FRACTIONMIN	Minimum fraction for incompressible solutions	-	-
GWP20	GWP20, GWP_20	20-year global warming potential	-	-
GWP100	GWP100, GWP_100	100-year global warming potential	-	-
GWP500	GWP500, GWP_500	500-year global warming potential	-	-
ODP	ODP, OZONEDEPLETIONPOTENTIAL	Ozone depletion potential	-	-
Phase	PHASE	Phase identification	-	-
PIP	PIP	Phase identification parameter	-	-

Helmholtz Energy Derivatives (advanced users):

• DALPHA0_DDELTA_CONSTTAU, DALPHA0_DDELTA
• DALPHA0_DTAU_CONSTDELTA, DALPHA0_DTAU
• DALPHAR_DDELTA_CONSTTAU, DALPHAR_DDELTA
• DALPHAR_DTAU_CONSTDELTA, DALPHAR_DTAU

HAProps/HAPropsSI Parameters

All parameters for humid air calculations are case-insensitive:

Output Name	All Accepted Aliases (case-insensitive)	Description	Units (HAProps)	Units (HAPropsSI)
T	T, TDB, T_DB, TEMP, TEMPERATURE, DRYBULB, DRYBULBTEMP, DRYBULBTEMPERATURE	Dry-bulb temperature	°C	K
Twb	B, TWB, T_WB, WETBULB, WETBULBTEMP, WETBULBTEMPERATURE	Wet-bulb temperature	°C	K
Tdp	D, TDP, T_DP, DEWPOINT, DEWPOINTTEMP, DEWPOINTTEMPERATURE	Dew-point temperature	°C	K
P	P, PRESSURE, PRES	Atmospheric pressure	bar	Pa
P_w	P_W, PW, PARTIALPRESSURE, WATERPRESSURE	Water vapor partial pressure	bar	Pa
R	R, RH, RELHUM, RELATIVEHUMIDITY	Relative humidity (0-1)	-	-
W	W, OMEGA, HUMRAT, HUMIDITYRATIO, MIXINGRATIO	Humidity ratio	kg water/kg dry air	kg water/kg dry air
Psi_w	PSI_W, PSIW, Y	Water mole fraction	mol water/mol humid air	mol water/mol humid air
Hda	H, HDA, H_DA, ENTHALPY	Enthalpy per unit dry air	kJ/kg dry air	J/kg dry air
Hha	HHA, H_HA	Enthalpy per unit humid air	kJ/kg humid air	J/kg humid air
Sda	S, SDA, S_DA, ENTROPY	Entropy per unit dry air	kJ/(kg·K) dry air	J/(kg·K) dry air
Sha	SHA, S_HA	Entropy per unit humid air	kJ/(kg·K) humid air	J/(kg·K) humid air
Vda	V, VDA, V_DA	Volume per unit dry air	m³/kg dry air	m³/kg dry air
Vha	VHA, V_HA	Volume per unit humid air	m³/kg humid air	m³/kg humid air
Cda	C, CP, CDA, CPDA, CP_DA	Specific heat per unit dry air	kJ/(kg·K) dry air	J/(kg·K) dry air
Cha	CHA, CPHA, CP_HA	Specific heat per unit humid air	kJ/(kg·K) humid air	J/(kg·K) humid air
CV	CV, CVMASS	Constant volume heat per dry air	kJ/(kg·K) dry air	J/(kg·K) dry air
CVha	CVHA, CV_HA	Constant volume heat per humid air	kJ/(kg·K) humid air	J/(kg·K) humid air
K	K, CONDUCTIVITY, THERMALCONDUCTIVITY	Thermal conductivity	W/(m·K)	W/(m·K)
MU	M, MU, VISC, VISCOSITY, DYNAMICVISCOSITY	Dynamic viscosity	Pa·s	Pa·s
Z	Z, COMPRESSIBILITY, COMPRESSIBILITYFACTOR	Compressibility factor	-	-

For more details, visit the CoolProp documentation.

If building from source:

Quick Build (Windows)

1. Make sure you have .NET SDK installed
2. Run build.bat in the project directory
3. The compiled files will be in compiled\net48\ directory

Manual Build

cd src
dotnet restore
dotnet build -c Release -p:Platform=x64

License

CoolProp is licensed under the MIT License. See the CoolProp project for details. This project is licensed under GNU GPL v3 license.

Credits

• CoolProp - Open-source thermodynamic and transport properties library
• Excel-DNA - .NET library for building Excel add-ins