modelDynamicDrum

Dynamic drum

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. 14.2 of the ThermoSysPro book.

Parameters

Type	Name	Default	Description
Boolean	Vertical	true	true: vertical cylinder - false: horizontal cylinder
Units.SI.Radius	R	1.05	Radius of the drum cross-sectional area
Units.SI.Length	L	16.27	Drum length
Real	Ccond	0.01	Condensation coefficient
Real	Cevap	0.09	Evaporation coefficient
Real	Xlo	0.0025	Vapor mass fraction in the liquid phase from which the liquid starts to evaporate
Real	Xvo	0.9975	Vapor mass fraction in the gas phase from which the liquid starts to condensate
Real	Kvl	1000	Heat exchange coefficient between the liquid and gas phases
Units.SI.CoefficientOfHeatTransfer	Klp	400	Heat exchange coefficient between the liquid phase and the wall
Units.SI.CoefficientOfHeatTransfer	Kvp	100	Heat exchange coefficient between the gas phase and the wall
Units.SI.CoefficientOfHeatTransfer	Kpa	25	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	Vf0	0.5	Fraction of initial water volume in the drum (active if dynamic_energy_balance=true and steady_state=false)
Units.SI.AbsolutePressure	P0	50.e5	Fluid initial pressure (active if dynamic_energy_balance=true and 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	Ce1	Feedwater input 1
Interfaces.Connectors.FluidInlet	Cm	Evaporation loop outlet
Interfaces.Connectors.FluidOutlet	Cd	Evaporation loop inlet
Interfaces.Connectors.FluidOutlet	Cv	Steam outlet
ThermoSysPro.InstrumentationAndControl.Connectors.OutputReal	yLevel	Water level
ThermoSysPro.Thermal.Connectors.ThermalPort	Cth	Thermal input to the liquid
ThermoSysPro.Thermal.Connectors.ThermalPort	Cex	Thermal input to the wall
Interfaces.Connectors.FluidInlet	Ce2	Feedwater input 2
Interfaces.Connectors.FluidInlet	Ce3	Feedwater input 3
Interfaces.Connectors.FluidOutlet	Cs	Water outlet

Components

Type	Name	Description
Units.SI.AbsolutePressure	P	Fluid average 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.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.Volume	Vl	Liquid phase volume
Units.SI.Volume	Vv	Gas phase volume
Units.SI.Area	Alp	Liquid phase surface on contact with the wall
Units.SI.Area	Avp	Gas phase surface on contact with the wall
Units.SI.Area	Ape	Wall surface on contact with the outside
Real	xl	Mass vapor fraction in the liquid phase
Real	xv	Mass vapor fraction in the vapor phase
Real	xmv	Mass vapor fraction in the ascending tube
Units.SI.Density	rhol	Liquid phase density
Units.SI.Density	rhov	Gas phase density
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.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.Position	zl	Liquid level in drum
Units.SI.Area	Al	Cross sectional area of the liquid phase
Units.SI.Angle	theta	Angle
Units.SI.Area	Avl	Heat exchange surface between the liquid and gas phases
FluidType[8]	fluids	Fluids mixing in volume
Units.SI.Power	Je1	Thermal power diffusion from inlet Ce1
Units.SI.Power	Je2	Thermal power diffusion from inlet Ce2
Units.SI.Power	Je3	Thermal power diffusion from inlet Ce3
Units.SI.Power	Jm	Thermal power diffusion from inlet Cm
Units.SI.Power	Jd	Thermal power diffusion from outlet Cd
Units.SI.Power	Js	Thermal power diffusion from outlet Cs
Units.SI.Power	Jv	Thermal power diffusion from outlet Cv
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_e1	Diffusion conductance for inlet Ce1
Units.SI.MassFlowRate	gamma_e2	Diffusion conductance for inlet Ce2
Units.SI.MassFlowRate	gamma_e3	Diffusion conductance for inlet Ce3
Units.SI.MassFlowRate	gamma_m	Diffusion conductance for inlet Cm
Units.SI.MassFlowRate	gamma_d	Diffusion conductance for outlet Cd
Units.SI.MassFlowRate	gamma_s	Diffusion conductance for outlet Cs
Units.SI.MassFlowRate	gamma_v	Diffusion conductance for outlet Cv
Real	re1	Value of r(Q/gamma) for inlet Ce1
Real	re2	Value of r(Q/gamma) for inlet Ce2
Real	re3	Value of r(Q/gamma) for inlet Ce3
Real	rm	Value of r(Q/gamma) for inlet Cm
Real	rd	Value of r(Q/gamma) for outlet Cd
Real	rs	Value of r(Q/gamma) for outlet Cs
Real	rv	Value of r(Q/gamma) for outlet Cv
ThermoSysPro.Properties.WaterSteam.Common.ThermoProperties_ph	prol	Propri鴩s de l'eau dans le ballon
ThermoSysPro.Properties.WaterSteam.Common.ThermoProperties_ph	prov	Propri鴩s de la vapeur dans le ballon
ThermoSysPro.Properties.WaterSteam.Common.ThermoProperties_ph	prom
ThermoSysPro.Properties.WaterSteam.Common.PropThermoSat	lsat
ThermoSysPro.Properties.WaterSteam.Common.PropThermoSat	vsat
ThermoSysPro.Properties.WaterSteam.Common.ThermoProperties_ph	prod

Revisions

Authors  

Daniel Bouskela  
Baligh El Hefni