Name | Description |
---|---|
HeatExchangerSimulation | simulation for the heat exchanger model |
BaseClasses | Additional models for heat exchangers |
Extends from Modelica.Icons.Example (Icon for an example model).
Type | Name | Default | Description |
---|---|---|---|
replaceable package Medium | Modelica.Media.Water.Constan... |
Type | Name | Description |
---|---|---|
replaceable package Medium |
model HeatExchangerSimulation "simulation for the heat exchanger model" extends Modelica.Icons.Example; replaceable package Medium = Modelica.Media.Water.ConstantPropertyLiquidWater; //replaceable package Medium = Modelica.Media.Water.StandardWater; //package Medium = Modelica.Media.Incompressible.Examples.Essotherm650;Modelica.Fluid.Examples.HeatExchanger.BaseClasses.BasicHX HEX( c_wall=500, use_T_start=true, nNodes=20, length=2, m_flow_start_1=0.2, m_flow_start_2=0.2, k_wall=100, energyDynamics=Modelica.Fluid.Types.Dynamics.FixedInitial, massDynamics=Modelica.Fluid.Types.Dynamics.SteadyStateInitial, s_wall=0.005, crossArea_1=4.5e-4, crossArea_2=4.5e-4, perimeter_1=0.075, perimeter_2=0.075, area_h_1=0.075*2*20, area_h_2=0.075*2*20, rho_wall=900, redeclare package Medium_1 = Medium, redeclare package Medium_2 = Medium, redeclare model HeatTransfer_1 = Modelica.Fluid.Pipes.BaseClasses.HeatTransfer.ConstantFlowHeatTransfer ( alpha0= 1000), redeclare model HeatTransfer_2 = Modelica.Fluid.Pipes.BaseClasses.HeatTransfer.ConstantFlowHeatTransfer (alpha0=200), Twall_start=300, dT=10, T_start_1=304, T_start_2=300); Modelica.Fluid.Sources.Boundary_pT ambient2(nPorts=1, p=1e5, T=280, redeclare package Medium = Medium); Modelica.Fluid.Sources.Boundary_pT ambient1(nPorts=1, p=1e5, T=300, redeclare package Medium = Medium); Modelica.Fluid.Sources.MassFlowSource_T massFlowRate2(nPorts=1, m_flow=0.2, T=360, redeclare package Medium = Medium, use_m_flow_in=true, use_T_in=false, use_X_in=false); Modelica.Fluid.Sources.MassFlowSource_T massFlowRate1(nPorts=1, T=300, m_flow=0.5, redeclare package Medium = Medium); Modelica.Blocks.Sources.Ramp Ramp1( startTime=50, duration=5, height=-1, offset=0.5); inner Modelica.Fluid.System system; equationconnect(massFlowRate1.ports[1], HEX.port_a1); connect(HEX.port_b1, ambient1.ports[1]); connect(Ramp1.y, massFlowRate2.m_flow_in); connect(massFlowRate2.ports[1], HEX.port_b2); connect(HEX.port_a2, ambient2.ports[1]); end HeatExchangerSimulation;