Modelica.Media.Water.IF97_Utilities.BaseIF97.TwoPhase

Steam properties in the two-phase region and on the phase boundaries

Information

Package description

Package TwoPhase provides functions to compute the steam properties in the two-phase region and on the phase boundaries

Package contents

• Function WaterLiq_p computes properties on the boiling boundary as a function of p
• Function WaterVap_p computes properties on the dew line boundary as a function of p
• Function WaterSat_ph computes properties on both phase boundaries and in the two phase region as a function of p
• Function WaterR4_ph computes dynamic simulation properties in region 4 with (p,h) as inputs
• Function WaterR4_dT computes dynamic simulation properties in region 4 with (d,T) as inputs

Version Info and Revision history

• First implemented: July, 2000 by Hubertus Tummescheit

• Initial version: July 2000
• Documented and re-organized: January 2003

Extends from Modelica.Icons.FunctionsPackage (Icon for packages containing functions).

Package Content

Name	Description
waterLiq_p	Properties on the liquid phase boundary of region 4
waterVap_p	Properties on the vapour phase boundary of region 4
waterSat_ph	Water saturation properties in the 2-phase region (4) as f(p,h)
waterR4_ph	Water/Steam properties in region 4 of IAPWS/IF97 (two-phase)
waterR4_dT	Water properties in region 4 as function of d and T

Modelica.Media.Water.IF97_Utilities.BaseIF97.TwoPhase.waterLiq_p

Properties on the liquid phase boundary of region 4

Information

Extends from Modelica.Icons.Function (Icon for functions).

Inputs

Outputs

Modelica.Media.Water.IF97_Utilities.BaseIF97.TwoPhase.waterVap_p

Properties on the vapour phase boundary of region 4

Information

Extends from Modelica.Icons.Function (Icon for functions).

Inputs

Outputs

Modelica.Media.Water.IF97_Utilities.BaseIF97.TwoPhase.waterSat_ph

Water saturation properties in the 2-phase region (4) as f(p,h)

Information

Extends from Modelica.Icons.Function (Icon for functions).

Inputs

Outputs

Modelica.Media.Water.IF97_Utilities.BaseIF97.TwoPhase.waterR4_ph

Water/Steam properties in region 4 of IAPWS/IF97 (two-phase)

Information

Extends from Modelica.Icons.Function (Icon for functions).

Inputs

Outputs

Modelica.Media.Water.IF97_Utilities.BaseIF97.TwoPhase.waterR4_dT

Water properties in region 4 as function of d and T

Information

Extends from Modelica.Icons.Function (Icon for functions).

Inputs

Outputs