To process this page used the WaterSteamPro function "wspVPS": specific volume [m3/kg] as function of pressure p [Pa], specific entropy s [J/(kg·K)].
The range of the validity is within that described in IF-97. The function wspWATERSTATEAREAPS is used to determine the IF-97 region. Then the necessary function (wspTxPS) is used. Finally, the necessary function (wspVxPT or wspVPTX) is called. Since at some stages the function use iterations, to speed up calculations you may disable precision mode (functions wspGETTOLERANCEMODE and wspSETTOLERANCEMODE) or vary relative precision for internal iterations (functions wspGETTOLERANCE and wspSETTOLERANCE).
WaterSteamPro is a registered trademark of Moscow Power Engineering Institute (Technical University).
Copyright (c) MPEI (TU), 1999-2010.
Copyright (c) Konstantin A. Orlov, 1999-2010.