SharpProp 1.0.5

A simple, full-featured, lightweight CoolProp wrapper for C#

Quick start

All calculations of thermophysical properties are performed in SI units.

The Fluid class is responsible for pure fluids and binary mixtures, the Mixture class - for mixtures with pure fluids components, the HumidAir class - for humid air.

The FluidsList is an enum of all available fluids.

List of properties

For the Fluid and Mixture instances:

• Compressibility - compressibility factor (-)
• Conductivity - thermal conductivity (W/m/K)
• CriticalPressure - absolute pressure at the critical point (Pa)
• CriticalTemperature - absolute temperature at the critical point (K)
• Density - mass density (kg/m3)
• DynamicViscosity - dynamic viscosity (Pa*s)
• Enthalpy - mass specific enthalpy (J/kg)
• Entropy - mass specific entropy (J/kg/K)
• FreezingTemperature - temperature at freezing point (for incompressible fluids) (K)
• InternalEnergy - mass specific internal energy (J/kg)
• MaxPressure - maximum pressure limit (Pa)
• MaxTemperature - maximum temperature limit (K)
• MinPressure - minimum pressure limit (Pa)
• MinTemperature - minimum temperature limit (K)
• MolarMass - molar mass (kg/mol)
• Phase - phase
• Prandtl - Prandtl number (-)
• Pressure - absolute pressure (Pa)
• Quality - mass vapor quality (-)
• SoundSpeed - sound speed (m/s)
• SpecificHeat - mass specific constant pressure specific heat (J/kg/K)
• SurfaceTension - surface tension (N/m)
• Temperature - absolute temperature (K)
• TriplePressure - absolute pressure at the triple point (Pa)
• TripleTemperature - absolute temperature at the triple point (K)

For the HumidAir instances:

• Compressibility - compressibility factor (-)
• Conductivity - thermal conductivity (W/m/K)
• Density - mass density per humid air unit (kg/m3)
• DewTemperature - dew-point absolute temperature (K)
• DynamicViscosity - dynamic viscosity (Pa*s)
• Enthalpy - mass specific enthalpy per humid air (J/kg)
• Entropy - mass specific entropy per humid air (J/kg/K)
• Humidity - absolute humidity ratio (kg/kg d.a.)
• PartialPressure - partial pressure of water vapor (Pa)
• Pressure - absolute pressure (Pa)
• RelativeHumidity - relative humidity ratio (from 0 to 1) (-)
• SpecificHeat - mass specific constant pressure specific heat per humid air (J/kg/K)
• Temperature - absolute dry-bulb temperature (K)
• WetBulbTemperature - absolute wet-bulb temperature (K)

NB. If the required property is not present in the instance of the fluid, then you can add it by extending the Fluid, Mixture or HumidAir classes - examples below.

Examples

Pure fluids

To calculate the specific heat of saturated water vapour at 101325 Pa:

using System;
using SharpProp;

namespace TestProject
{
    internal static class Program
    {
        private static void Main()
        {
            var waterVapour = new Fluid(FluidsList.Water);
            waterVapour.Update(Input.Pressure(101325), Input.Quality(1));
            Console.WriteLine(waterVapour.SpecificHeat); // 2079.937085633241
        }
    }
}

Incompressible binary mixtures

To calculate the dynamic viscosity of propylene glycol aqueous solution with 60 % mass fraction at 101325 Pa and _ 253.15 K_:

using System;
using SharpProp;

namespace TestProject
{
    internal static class Program
    {
        private static void Main()
        {
            var propyleneGlycol = new Fluid(FluidsList.MPG, 0.6);
            propyleneGlycol.Update(Input.Pressure(101325), Input.Temperature(253.15));
            Console.WriteLine(propyleneGlycol.DynamicViscosity); // 0.13907391053938847
        }
    }
}

Mixtures

To calculate the density of ethanol aqueous solution (with ethanol 40 % mass fraction) at 200 kPa and 277.15 K:

using System;
using System.Collections.Generic;
using SharpProp;

namespace TestProject
{
    internal static class Program
    {
        private static void Main()
        {
            var mixture = new Mixture(new List<FluidsList> {FluidsList.Water, FluidsList.Ethanol},
                new List<double> {0.6, 0.4});
            mixture.Update(Input.Pressure(200e3), Input.Temperature(277.15));
            Console.WriteLine(mixture.Density); // 883.3922771627759
        }
    }
}

Humid air

To calculate the wet bulb temperature of humid air at 99 kPa, 303.15 K and 50 % relative humidity:

using System;
using SharpProp;

namespace TestProject
{
    internal static class Program
    {
        private static void Main()
        {
            var humidAir = new HumidAir();
            humidAir.Update(InputHumidAir.Pressure(99e3), InputHumidAir.Temperature(303.15),
                InputHumidAir.RelativeHumidity(0.5));
            // or use:
            // var humidAir = HumidAir.WithState(InputHumidAir.Pressure(99e3), InputHumidAir.Temperature(303.15),
            //     InputHumidAir.RelativeHumidity(0.5));
            Console.WriteLine(humidAir.WetBulbTemperature); // 295.0965785590792
        }
    }
}

Adding other properties or inputs

See an examples in SharpProp.Tests/Fluids and SharpProp.Tests/HumidAir.