Updated
Version: Release 2.0 now available (August 2005). Revised costs
are
effective immediately.
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ASTEM97 Version 2 - Steam tables based on the 1997 IAPWS release for the properties of water and steam for industrial use.
Updated
Version: Release 2.0 now available (August 2005). Revised costs
are
effective immediately.
ASTEM97 provides the thermodynamic and transport properties of water and steam. In all 31 properties are computed. In addition ASTEM97 provides routines to determine the pressure based on temperature and (1) quality, (2) specific volume, (3) enthalpy, (4) entropy or (6) internal energy. ASTEM97 can determines multiple pressure state points for temperature-related calls. ASTEM97 also provides routines to determine the temperature based on pressure and (1) quality, (2) specific volume, (3) enthalpy, (4) entropy or (6) internal energy. Routines are also provided to determine the pressure and temperature based on the following pairs [enthalpy, entropy], [specific volume, enthalpy] and [specific volume, entropy].
Summary of Available Input Pairs
| T - temperature | x - quality | h - enthalpy | s - entropy | v - specific volume | u - internal energy | |
| P - pressure | X | X | X | X | X | X |
| T - temperature | X | X | X | X | X | |
| h - enthalpy | X | |||||
| v - specific volume | X | X |
Copyright 2002-2005 Edward D. Throm
e-mail: mister-ed@cox.net