Derivate of density on pressure with constant enthalpy of water/steam


Pressure: Pa

Temperature: K

Vapor fraction:

Derivate of density on pressure with constant enthalpy of water/steam: 5,87912133450922E-06 sec2/m2


To process this page used the WaterSteamPro function "wspDDDPHPTX": derivate of density on pressure with constant enthalpy of water/steam [sec2/m2] as function of pressure p [Pa], temperature t [K], vapor fraction x [-].

The range of the validity is within that described in IF-97. The function wspWATERSTATEAREA is used to determine the IF-97 region. Then the necessary function (wspDDDPHxPT or wspDDDPHSTX) is used. If the point is out of the double-phase area the value of vapor fraction is ignored.


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Copyright (c) MPEI (TU), 1999-2010.

Copyright (c) Konstantin A. Orlov, 1999-2010.