modelCISESim

CISE Plant model with boundary conditions and initial steady-state computation

Information

This model provides the boundary condition values to the CISEPlantmodel; it can be used to simulate open-loop transients.

The steady state is obtained by setting the derivatives of all the state variables to zero in the initial equation section. The offset values for ValveOpening1 and wfeed1, i.e. the parameters ValveOpening_offset and wfeed_offset have a fixed=false attribute. Their actual values are set by the two additional initial equations specifying the initial drum level and pressure.

The CISESim120501, CISESim180503, CISESim180504 models extend CISESim by adding suitable numerical values to the boundary condition signal generators.

Parameters

Type	Name	Default	Description
SI.MassFlowRate	wfeed_offset		Offset of feedwater flow rate
Real	ValveOpening_offset		Offset of valve opening
SI.Pressure	InitialDrumPressure	5.9359e+006
SI.Length	InitialDrumLevel	-0.091

Components

Type	Name	Default	Description
Modelica.Blocks.Sources.Constant	Qsh
Modelica.Blocks.Sources.Ramp	Qev
Modelica.Blocks.Sources.Ramp	wfeed1
Modelica.Blocks.Math.Add3	wfeed
Modelica.Blocks.Sources.Ramp	wfeed2
Modelica.Blocks.Sources.Ramp	ValveOpening1
Modelica.Blocks.Sources.Ramp	ValveOpening2
Modelica.Blocks.Math.Add3	sum_1
Modelica.Blocks.Sources.Ramp	wfeed3
Modelica.Blocks.Sources.Ramp	wfeed5
Modelica.Blocks.Sources.Ramp	wfeed4
Modelica.Blocks.Sources.Ramp	hfeed1
Modelica.Blocks.Sources.Ramp	hfeed2
Modelica.Blocks.Math.Add3	hfeed
Modelica.Blocks.Sources.Ramp	hfeed3
Modelica.Blocks.Math.Add	sum_3
Modelica.Blocks.Sources.Ramp	ValveOpening3
Modelica.Blocks.Math.Add	ValveOpening
System	system
Models.CISEPlant	Plant

Revisions

19 Apr 2005 by Francesco Casella:
Initialisation by initial equations.
20 Dec 2004 by Francesco Casella:
New heat transfer components.
1 Oct 2003 by Francesco Casella:
First release.