modelSetPower
This model defines a specific mass flow rate based on the input power
share
Extends from Modelica.Fluid.Interfaces.PartialTwoPort (Partial component with two ports).
Information
This model sets the mass flow rate of the air flow through a facade ventilation unit based on the input value, which is the power share set point of the fan.
- July, 2017 by Marc Baranski and Roozbeh Sangi:
First implementation.
Parameters
| Type | Name | Default | Description |
|---|---|---|---|
| Modelica.Units.SI.MassFlowRate | m_flow_nominal | 0.05 | Nominal mass flow rate of fan |
| Medium.AbsolutePressure | p_start | Medium.p_default | Start value of pressure |
| Integer | noUnits | 1 | Number of identical FVU units |
| Modelica.Units.SI.PressureDifference | dp_nominal | 500 | Initial pressure difference |
| Medium.Temperature | T_start | Medium.T_default | Start value of temperature |
| Assumptions | |||
| Boolean | allowFlowReversal (from PartialTwoPort) | system.allowFlowReversal | = true to allow flow reversal, false restricts to design direction (port_a -> port_b) |
Connectors
| Type | Name | Default | Description |
|---|---|---|---|
| Modelica.Fluid.Interfaces.FluidPort_a | port_a (from PartialTwoPort) | Fluid connector a (positive design flow direction is from port_a to port_b) | |
| Modelica.Fluid.Interfaces.FluidPort_b | port_b (from PartialTwoPort) | Fluid connector b (positive design flow direction is from port_a to port_b) | |
| Modelica.Blocks.Interfaces.RealInput | powerShare | Power share 0..1 for fan |
Components
| Type | Name | Default | Description |
|---|---|---|---|
| Modelica.Fluid.System | system (from PartialTwoPort) | System wide properties | |
| Modelica.Blocks.Tables.CombiTable1Dv | volumeFlow | Correlates the relative input signal and a volume flow rate | |
| AixLib.Fluid.Movers.FlowControlled_m_flow | fan | Mass-flow-controlled mover setting mass flow rate from table | |
| Modelica.Blocks.Math.Gain | transforMassFlow | Used to transform the volume flow rate in m3/h into a mass flow rate in kg/s |