# X Steam, Thermodynamic properties of water 2.5

OS : Windows / Linux / Mac OS / BSD / Solaris

Script Licensing : BSD - BSD License

Created : Aug 2, 2007

Downloads : 28

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## Steam and water properties for Matlab based on the ...

Steam and water properties for Matlab based on the "International Association for Properties of Water and Steam Industrial Formulation 1997 (IAPWS IF-97). A full implementation of the IF-97 standard that provides very accurate steam and water properties in ranges from 0-1000 bar and 0-2000° C. Provided thermodynamic_properties are:

Temperature

Pressure

Enthalpy

Specific volume

Density

Specific entropy

Specific internal energy

Specific isobaric heat capacity

Specific isochoric heat capacity

speed of sound

Viscosity

Vapour fraction

All properties can be calculated with the inputs, p and T known, p and h known, h and s known and some with pressure and density known. X Steam are a full implementation of the IF-97 formulation including all regions and all backward functions for good calculation speed. The code are speed optimized with pressure and enthalpy as inputs for dynamic simulations.

XSteam('rho_ph', 1, 3000) return the density of steam at 1 bar and 3000 kJ/kg. 0. 4056 kg/m3

XSteam('w_pt', 1, 20) returns the speed of sound at 1 bar and 20 deg C. 1483. 4 m/s

XSteam('tSat_p', 1) returns the saturation temperature at 1 bar. 99. 6059 deg C

The X Steam Tables are the perfect tool both for replacing paper tables and for advanced calculations. The X Steam tables are open source and free of charge.

The X Steam tables are also available as MS Excel scripts, OOo Sripts, Dynamic Link Libary . DLL.

Temperature

Pressure

Enthalpy

Specific volume

Density

Specific entropy

Specific internal energy

Specific isobaric heat capacity

Specific isochoric heat capacity

speed of sound

Viscosity

Vapour fraction

All properties can be calculated with the inputs, p and T known, p and h known, h and s known and some with pressure and density known. X Steam are a full implementation of the IF-97 formulation including all regions and all backward functions for good calculation speed. The code are speed optimized with pressure and enthalpy as inputs for dynamic simulations.

**Examples:**

XSteam('h_pt', 1, 20) return the enthalpy of water at 1 bar and 20 degC. 84. 0118 kJ/kgXSteam('rho_ph', 1, 3000) return the density of steam at 1 bar and 3000 kJ/kg. 0. 4056 kg/m3

XSteam('w_pt', 1, 20) returns the speed of sound at 1 bar and 20 deg C. 1483. 4 m/s

XSteam('tSat_p', 1) returns the saturation temperature at 1 bar. 99. 6059 deg C

The X Steam Tables are the perfect tool both for replacing paper tables and for advanced calculations. The X Steam tables are open source and free of charge.

The X Steam tables are also available as MS Excel scripts, OOo Sripts, Dynamic Link Libary . DLL.

**X Steam, Thermodynamic properties of water 2.5 scripting tags:**steam water, speed, bar, properties, thermodynamic, chemistry physics, thermodynamic properties.

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