modelTestST2
Extends from Modelica.Icons.Example (Icon for runnable examples).
Information
This model is designed to test the SteamTurbineUnit component when connected to a fixed speed load. Simulation sequence:
- t=0 s: The system starts at equilibrium
- t=1 s: The throttle valve opening is reduced.
- t=10 s: After 9 s the torque applied to the load has been reduced by 6%.
Simulation Interval = [0...10] sec
Integration Algorithm = DASSL
Algorithm Tolerance = 1e-4
Parameters
| Type | Name | Default | Description |
|---|---|---|---|
| Medium.MassFlowRate | w | 1 | |
| Medium.AbsolutePressure | pin | 60e5 | |
| Medium.AbsolutePressure | pcond | 0.08e5 | |
| SI.PerUnit | eta_iso | 0.92 | |
| SI.PerUnit | eta_mech | 0.98 | |
| SI.AngularVelocity | omega | 314 | |
| Medium.SpecificEnthalpy | hin | 2.949e6 | |
| Medium.SpecificEnthalpy | hout_iso | 2.240e6 | |
| Medium.SpecificEnthalpy | hout | hin - eta_iso*(hin - hout_iso) | |
| SI.Power | Pnet | eta_iso*eta_mech*w*(hin - hout_iso) | |
| SI.Torque | tau | 0.8*Pnet/omega | |
| SI.Time | Ta | 10 | Turbine acceleration time |
| SI.MomentOfInertia | J | Pnet*Ta/omega^2 | |
| Units.HydraulicResistance | Kv | 1/2e5 | |
| SI.PerUnit | theta0 | 0.3 |
Components
| Type | Name | Default | Description |
|---|---|---|---|
| Water.SteamTurbineUnit | ST | ||
| Water.SourcePressure | SourceP1 | ||
| Modelica.Mechanics.Rotational.Components.Inertia | Inertia1 | ||
| Water.SinkPressure | SinkP1 | ||
| Water.ValveLin | ValveLin1 | ||
| Modelica.Blocks.Sources.Step | Step1 | ||
| Modelica.Mechanics.Rotational.Sources.Speed | Speed1 | ||
| Modelica.Blocks.Sources.Constant | Constant1 | ||
| System | system |
Contents
| Name | Description |
|---|---|
 Medium |
Revisions
- 21 Jul 2004 by Francesco Casella:
First release.