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Fluid Properties

1 tool in the Fluids and Heat Transfer area.

Fluid Property Lookup

Thermodynamic and transport properties of water and steam, eight ideal gases and four refrigerants at a state fixed by any supported pair of variables. Water and steam follow the IAPWS Industrial Formulation 1997 (IAPWS-IF97, 2012 revision) in every region, with the 2008 viscosity and 2011 thermal-conductivity formulations; the gases (air, nitrogen, oxygen, carbon dioxide, water vapour, argon, hydrogen, methane) use the NASA Glenn polynomials of NASA/TP-2002-211556 with the Sutherland viscosity and conductivity of the U.S. Standard Atmosphere for air; R-134a, ammonia, carbon dioxide and propane are interpolated in NIST Chemistry WebBook saturation and superheated-vapour tables. The tool names the region or phase, prints v, ρ, u, h, s, c_p, c_v, the speed of sound, viscosity, conductivity and Prandtl number, the saturation properties at the state's temperature and pressure, a short table around the state and the T-s and p-h diagrams with the saturation dome and the state marked, in SI or USCS units. The default is steam at 1 MPa and 300 °C: v = 0.25798 m³/kg, h = 3051.7 kJ/kg, s = 7.1247 kJ/(kg·K), in agreement with the NIST WebBook (IAPWS-95) row to four significant figures.

1 worked example reproduced, listed on the tool page.

Other Fluids and Heat Transfer sections

Pipe Flow · Pumps and Fans · Compressible Flow · Conduction · Convection · Radiation · Heat Exchangers · Thermodynamic Cycles