modelHx1DInc_1808

Extends from Components.Units.BaseUnits.BaseHx.

Parameters

TypeNameDefaultDescription
IntegerN5Number of nodes for the heat exchanger
Modelica.SIunits.VolumeV_sf0.03781Volume secondary fluid
Modelica.SIunits.VolumeV_wf0.03781Volume primary fluid
Modelica.SIunits.AreaA_sf16.18Area secondary fluid
Modelica.SIunits.AreaA_wf16.18Area primary fluid
Modelica.SIunits.MassM_wall69Mass of the metal wall between the two fluids
Modelica.SIunits.SpecificHeatCapacityc_wall500Specific heat capacity of metal wall
Modelica.SIunits.MassFlowRateMdotnom_sf3Nominal flow rate of secondary fluid
Modelica.SIunits.MassFlowRateMdotnom_wf0.2588Nominal flow rate of working fluid
General › Heat transfer
ThermoCycle.Functions.Enumerations.HT_sfHTtype_sfHT_sf.ConstSecondary fluid: Choose heat transfer coeff
Modelica.SIunits.CoefficientOfHeatTransferUnom_sf369Coefficient of heat transfer, secondary fluid
HTtypesHTtype_wfHTtypes.LiqVapWorking fluid: Choose heat transfer coeff. type. Set LiqVap with Unom_l=Unom_tp=Unom_v to have a Const HT
Modelica.SIunits.CoefficientOfHeatTransferUnom_l300if HTtype = LiqVap: heat transfer coeff, liquid zone.
Modelica.SIunits.CoefficientOfHeatTransferUnom_tp700if HTtype = LiqVap: heat transfer coeff, two-phase zone.
Modelica.SIunits.CoefficientOfHeatTransferUnom_v400if HTtype = LiqVap: heat transfer coeff, vapor zone.
Initialization
Modelica.SIunits.Pressurepstart_sf1e5Nominal inlet pressure of secondary fluid
Modelica.SIunits.Pressurepstart_wf23.57e5Nominal inlet pressure of working fluid
Modelica.SIunits.TemperatureTstart_inlet_wf334.9Initial value of working fluid temperature at the inlet
Modelica.SIunits.TemperatureTstart_outlet_wf413.15Initial value of working fluid temperature at the outlet
Modelica.SIunits.TemperatureTstart_inlet_sf418.15Initial value of secondary fluid temperature at the inlet
Modelica.SIunits.TemperatureTstart_outlet_sf408.45Initial value of secondary fluid temperature at the outlet
Initialization › Intialization options
Booleansteadystate_h_sffalseif true, sets the derivative of T_sf (secondary fluids Temperature in each cell) to zero during Initialization
Booleansteadystate_h_wffalseif true, sets the derivative of h of primary fluid (working fluids enthalpy in each cell) to zero during Initialization
Booleansteadystate_T_wallfalseif true, sets the derivative of T_wall to zero during Initialization
Numerical options
DiscretizationsDiscretizationThermoCycle.Functions.Enumerations.Discretizations.centr_diffSelection of the spatial discretization scheme
BooleanMdotconst_wffalseSet to yes to assume constant mass flow rate of primary fluid at each node (easier convergence)
Booleanmax_der_wffalseSet to yes to limit the density derivative of primary fluid during phase transitions
Booleanfilter_dMdt_wffalseSet to yes to filter dMdt of primary fluid with a first-order filter
Realmax_drhodt_wf100Maximum value for the density derivative of primary fluid
Modelica.SIunits.TimeTT_wf1Integration time of the first-order filter

Connectors

TypeNameDefaultDescription
Interfaces.Fluid.FlangeAinlet_fl1 (from BaseHx)
Interfaces.Fluid.FlangeBoutlet_fl1 (from BaseHx)
Interfaces.Fluid.FlangeAinlet_fl2 (from BaseHx)
Interfaces.Fluid.FlangeBoutlet_fl2 (from BaseHx)

Components

TypeNameDefaultDescription
Components.FluidFlow.Pipes.Flow1DimWorkingFluid
Components.HeatFlow.Walls.MetalWallmetalWall
Components.HeatFlow.Walls.CountCurrcountCurr
Components.FluidFlow.Pipes.Flow1DimIncSecondaryFluid
SummaryClassSummary

Contents

NameDescription
SummaryBase
SummaryClass