modelTrickleVent
Self regulating trickle vent
Extends from IDEAS.Fluid.BaseClasses.PartialResistance.
Information
Model of a self regulating trickle vent.
The positive mass flow rate is limited to m_flow_nominal
at a pressure difference of dp_nominal.
For negative pressure differences the mass flow rate is not limited.
An optional control input can be enabled, which reduces the flow rate for the same pressure difference, but which does not affect the maximum flow rate.
Parameters
| Type | Name | Default | Description |
|---|---|---|---|
| Real | l | 0.0001 | Valve leakage, l=Kv(y=0)/Kv(y=1) |
| Real | k | if computeFlowResistance then m_flow_nominal_pos/sqrt(dp_nominal_pos) else 0 | Flow coefficient, k=m_flow/sqrt(dp), with unit=(kg.m)^(1/2) |
| Transition to laminar | |||
| Real | deltaM | 0.3 | Fraction of nominal mass flow rate where transition to turbulent occurs |
| Control | |||
| Boolean | use_y | false | =true, to enable control input |
Components
| Type | Name | Default | Description |
|---|---|---|---|
| Modelica.Blocks.Interfaces.RealInput | y | Control input for trickle vent Kv value |
Revisions
-
July 9, 2023, by Filip Jorissen:
Add control input. -
September 21, 2021, by Filip Jorissen:
First implementation.