Fluid Properties & Thermophysical Calculations

Calcumber can calculate thermodynamic fluid properties using the integrated CoolProp library. Load a fluid such as water, air, nitrogen, propane, or a refrigerant and calculate properties like density, enthalpy, entropy, viscosity, thermal conductivity, saturation pressure, and vapor quality.

This makes it possible to include real fluid-property calculations directly in engineering formulas, for example for heat pumps, refrigeration cycles, steam generation, air flows, or hydraulic heating circuits.

Example

The example below calculates the specific enthalpy and density of water in specified states. Change pressure and temperature values and see the result values changing. Also replace water by R134a or air.

Define fluid:  load fluid water 1
Enthalpy:        h(1 bar, 20 °C) 84.0061 kJ/kg
Another state:   h(4 bar, 160 °C) 2775.19 kJ/kg
Density:       rho(1 bar, 20 °C) 998.207 kg/m3

More Examples and Reference

Fluid Properties Calculator

Refrigeration Cycle Calculator

Log(p)-h diagrams

Fluid Properties Reference