modelPressurizer

Pressurizer

Extends from ThermoSysPro.Fluid.Interfaces.PropertyInterfaces.WaterSteamFluidTypeParameterInterface (Interface to display the water/steam fluid type after parametrization), ThermoSysPro.Fluid.Interfaces.IconColors (Colors of the static, singular and dynamic model icons).

Information

## Copyright © EDF 2002 - 2026   
## ThermoSysPro Version 4.2   
This component model is documented in Sect. 14.3 of the ThermoSysPro book.

Parameters

Type	Name	Default	Description
Units.SI.Volume	V	61.1	Pressurizer volume
Units.SI.Radius	Rp	1.265	Pressurizer cross-sectional radius
Units.SI.Area	Ae	1	Wall surface
Units.SI.Position	Zm	10.15	Hauteur de la gamme de mesure niveau
Real	Ccond	0.1	Condensation coefficient
Real	Cevap	0.1	Evaporation coefficient
Units.SI.CoefficientOfHeatTransfer	Klv	0.5e6	Heat exchange coefficient between the liquid and gas phases
Units.SI.CoefficientOfHeatTransfer	Klp	50000	Heat exchange coefficient between the liquid phase and the wall
Units.SI.CoefficientOfHeatTransfer	Kvp	25	Heat exchange coefficient between the gas phase and the wall
Units.SI.CoefficientOfHeatTransfer	Kpa	542	Heat exchange coefficient between the wall and the outside
Units.SI.Mass	Mp	117e3	Wall mass
Units.SI.SpecificHeatCapacity	cpp	600	Wall specific heat
Boolean	dynamic_energy_balance	true	true: dynamic energy balance equation - false: static energy balance equation
Boolean	steady_state	true	true: start from steady state - false: start from (P0, Vf0) (active if dynamic_energy_balance=true)
Real	Yw0	50	Initial water level - percent of the measure scale level (active if steady_state=false)
Units.SI.AbsolutePressure	P0	155e5	Initial fluid pressure (active if steady_state=false)
Boolean	continuous_flow_reversal	false	true: continuous flow reversal - false: discontinuous flow reversal
Boolean	diffusion	false	true: energy balance equation with diffusion - false: energy balance equation without diffusion
Fluid › Fluid properties
WaterSteamFluidType	wsftype (from WaterSteamFluidTypeParameterInterface)	WaterSteamFluidType.WaterSteam	Water/steam fluid type

Connectors

Type	Name	Description
Interfaces.Connectors.FluidInlet	Cas	Water input
Interfaces.Connectors.FluidOutlet	Cs	Steam output
ThermoSysPro.Thermal.Connectors.ThermalPort	Ca	Thermal input to the wall
ThermoSysPro.Thermal.Connectors.ThermalPort	Cc	Thermal input to the liquid
ThermoSysPro.InstrumentationAndControl.Connectors.OutputReal	yLevel	Water level
Interfaces.Connectors.FluidOutlet	Cex	Water output

Components

Type	Name	Description
Units.SI.Area	Slpin	Exchange surface between the liquid and the wall
Units.SI.Area	Svpin	Exchange surface between the vapor and the wall
Real	Yw	Liquid level as a percent of the measure scale
Real	y	Liquid level as a proportion of the measure scale
Units.SI.Position	Zl	Liquid level in the pressurizer
Units.SI.Volume	Vl	Liquid phase volume
Units.SI.Volume	Vv	Gas phase volume
Units.SI.AbsolutePressure	P	Average fluid pressure
Units.SI.AbsolutePressure	Pfond	Fluid pressure at the bottom of the drum
Units.SI.SpecificEnthalpy	hl	Liquid phase specific enthalpy
Units.SI.SpecificEnthalpy	hv	Gas phase specific enthalpy
Units.SI.SpecificEnthalpy	hls	Liquid phase saturation specific enthalpy
Units.SI.SpecificEnthalpy	hvs	Gas phase saturation specific enthalpy
Units.SI.Temperature	Tl	Liquid phase temperature
Units.SI.Temperature	Tv	Gas phase temperature
Units.SI.Temperature	Tp	Wall temperature
Units.SI.Temperature	Ta	External temperature
Units.SI.Power	Wlv	Thermal power exchanged from the gas phase to the liquid phase
Units.SI.Power	Wpl	Thermal power exchanged from the liquid phase to the wall
Units.SI.Power	Wpv	Thermal power exchanged from the gas phase to the wall
Units.SI.Power	Wpa	Thermal power exchanged from the outside to the wall
Units.SI.Power	Wch	Power released by the electrical heaters
Units.SI.MassFlowRate	BQl	Right hand side of the mass balance equation of the liquid phase
Units.SI.MassFlowRate	BQv	Right hand side of the mass balance equation of the gas phase
Units.SI.Power	BHl	Right hand side of the energy balance equation of the liquid phase
Units.SI.Power	BHv	Right hand side of the energy balance equation of the gas phase
Units.SI.MassFlowRate	Qcond	Condensation mass flow rate from the vapor phase
Units.SI.MassFlowRate	Qevap	Evaporation mass flow rate from the liquid phase
Units.SI.Density	rhol	Liquid phase density
Units.SI.Density	rhov	Vapor phase density
FluidType[4]	fluids	Fluids mixing in volume
Units.SI.Power	Jas	Thermal power diffusion from inlet Cas
Units.SI.Power	Jex	Thermal power diffusion from outlet Cex
Units.SI.Power	Js	Thermal power diffusion from outlet Cs
Units.SI.Power	Jt_l	Total thermal power diffusion for the liquid
Units.SI.Power	Jt_v	Total thermal power diffusion for the vapor
Units.SI.MassFlowRate	gamma_as	Diffusion conductance for inlet Cas
Units.SI.MassFlowRate	gamma_ex	Diffusion conductance for outlet Cex
Units.SI.MassFlowRate	gamma_s	Diffusion conductance for outlet Cs
Real	ras	Value of r(Q/gamma) for inlet Cas
Real	rex	Value of r(Q/gamma) for outlet Cex
Real	rs	Value of r(Q/gamma) for outlet Cs
Properties.WaterSteam.Common.ThermoProperties_ph	prov	Propri鴩s de la vapeur dans le ballon
Properties.WaterSteam.Common.ThermoProperties_ph	prol	Propri鴩s de l'eau dans le ballon
Properties.WaterSteam.Common.PropThermoSat	lsat
Properties.WaterSteam.Common.PropThermoSat	vsat

Revisions

Authors  

Daniel Bouskela  
Baligh El Hefni