modelValveSelfActing
Example model for self-acting steam valve with a noisy inlet pressure input
Extends from Modelica.Icons.Example (Icon for runnable examples).
Information
This example model demonstrates the performance of self-acting steam pressure regulator with a noisy/varying inlet pressure signal. The inlet pressure conditions are selected to demonstrate how the downstream pressure is maintained at the setpoint, unless the inlet pressure drops below the setpoint (pressure drop is then zero).
Parameters
| Type | Name | Default | Description |
|---|---|---|---|
| Modelica.Units.SI.MassFlowRate | m_flow_nominal | 1 | Nominal mass flow rate |
Components
| Type | Name | Default | Description |
|---|---|---|---|
| Buildings.DHC.Loads.Steam.BaseClasses.ValveSelfActing | prv | Self acting pressure reducing valve | |
| Buildings.Fluid.Sources.Boundary_pT | sou | Source | |
| Buildings.Fluid.Sensors.SpecificEnthalpyTwoPort | speEntIn | Upstream specific enthalpy | |
| Buildings.Fluid.Sensors.SpecificEnthalpyTwoPort | speEntOut | Downstream specific enthalpy | |
| Fluid.Sources.Boundary_pT | sin | Sink | |
| Fluid.FixedResistances.PressureDrop | res | Pressure drop | |
| Controls.OBC.CDL.Reals.Sources.Ramp | pInSig | Signal for inlet pressure |
Contents
| Name | Description |
|---|---|
 MediumSte | Medium model |
Revisions
-
June 13, 2024, by Michael Wetter:
Changed inlet pressure to be a ramp, and removed dynamics of sensor.
This is for OpenModelica, #12569. -
March 2, 2022 by Saranya Anbarasu:
First implementation.