Buildings.Obsolete.Fluid.Movers.Validation

Obsolete validation models

Information

This package contains obsolete validation models.

Extends from Modelica.Icons.ExamplesPackage (Icon for packages containing runnable examples).

Package Content

Name	Description
ControlledFlowMachine	Fans with different control signals as input
ControlledFlowMachineDynamic	Fans with different control signals as input and a dynamic speed signal
SpeedControlled_Nrpm	Fan with zero mass flow rate and speed as input
BaseClasses	Package with base classes for obsolete validation models

Buildings.Obsolete.Fluid.Movers.Validation.ControlledFlowMachine

Fans with different control signals as input

Buildings.Obsolete.Fluid.Movers.Validation.ControlledFlowMachine

Information

This example demonstrates the use of the flow model with four different configurations. At steady-state, all flow models have the same mass flow rate and pressure difference. Note that addPowerToMedium=false since otherwise, Dymola computes the enthalpy change of the component as a fraction (k*m_flow+P_internal)/m_flow which leads to an error because of 0/0 at zero flow rate.

Extends from Modelica.Icons.Example (Icon for runnable examples), Buildings.Obsolete.Fluid.Movers.Validation.BaseClasses.ControlledFlowMachine.

Modelica definition

model ControlledFlowMachine "Fans with different control signals as input" extends Modelica.Icons.Example; extends Buildings.Obsolete.Fluid.Movers.Validation.BaseClasses.ControlledFlowMachine ( fan4(addPowerToMedium=false, use_inputFilter=false, energyDynamics=Modelica.Fluid.Types.Dynamics.FixedInitial), fan1(addPowerToMedium=false, energyDynamics=Modelica.Fluid.Types.Dynamics.FixedInitial), fan2(addPowerToMedium=false, use_inputFilter=false, energyDynamics=Modelica.Fluid.Types.Dynamics.FixedInitial), fan3(addPowerToMedium=false, use_inputFilter=false, energyDynamics=Modelica.Fluid.Types.Dynamics.FixedInitial)); end ControlledFlowMachine;

Buildings.Obsolete.Fluid.Movers.Validation.ControlledFlowMachineDynamic

Fans with different control signals as input and a dynamic speed signal

Buildings.Obsolete.Fluid.Movers.Validation.ControlledFlowMachineDynamic

Information

This example demonstrates the use of the flow model with four different configurations. At steady-state, all flow models have the same mass flow rate and pressure difference.

Extends from Modelica.Icons.Example (Icon for runnable examples), Buildings.Obsolete.Fluid.Movers.Validation.BaseClasses.ControlledFlowMachine.

Modelica definition

model ControlledFlowMachineDynamic "Fans with different control signals as input and a dynamic speed signal" extends Modelica.Icons.Example; extends Buildings.Obsolete.Fluid.Movers.Validation.BaseClasses.ControlledFlowMachine ( fan4(energyDynamics=Modelica.Fluid.Types.Dynamics.FixedInitial), fan1(energyDynamics=Modelica.Fluid.Types.Dynamics.FixedInitial), fan2(energyDynamics=Modelica.Fluid.Types.Dynamics.FixedInitial), fan3(energyDynamics=Modelica.Fluid.Types.Dynamics.FixedInitial)); end ControlledFlowMachineDynamic;

Buildings.Obsolete.Fluid.Movers.Validation.SpeedControlled_Nrpm

Fan with zero mass flow rate and speed as input

Buildings.Obsolete.Fluid.Movers.Validation.SpeedControlled_Nrpm

Information

This example demonstrates and tests the use of a flow machine whose mass flow rate is reduced to zero.

The fans have been configured as steady-state models. This ensures that the actual speed is equal to the input signal.

Extends from Modelica.Icons.Example (Icon for runnable examples), Buildings.Fluid.Movers.Validation.BaseClasses.FlowMachine_ZeroFlow (Base class to test flow machines with zero flow rate).

Parameters

Type	Name	Default	Description
replaceable package Medium		Air	Medium model
MassFlowRate	m_flow_nominal	1	Nominal mass flow rate [kg/s]
PressureDifference	dp_nominal	500	Nominal pressure difference [Pa]

Modelica definition

model SpeedControlled_Nrpm "Fan with zero mass flow rate and speed as input" extends Modelica.Icons.Example; extends Buildings.Fluid.Movers.Validation.BaseClasses.FlowMachine_ZeroFlow( gain(k=1500), redeclare Buildings.Obsolete.Fluid.Movers.SpeedControlled_Nrpm floMacSta( redeclare package Medium = Medium, per(pressure(V_flow={0,m_flow_nominal,2*m_flow_nominal}/1.2, dp={2*dp_nominal,dp_nominal,0})), use_inputFilter=false, energyDynamics=Modelica.Fluid.Types.Dynamics.SteadyState), redeclare Buildings.Obsolete.Fluid.Movers.SpeedControlled_Nrpm floMacDyn( redeclare package Medium = Medium, per(pressure(V_flow={0,m_flow_nominal,2*m_flow_nominal}/1.2, dp={2*dp_nominal,dp_nominal,0})), use_inputFilter=false, energyDynamics=Modelica.Fluid.Types.Dynamics.FixedInitial)); equation connect(gain.y, floMacSta.Nrpm); connect(gain.y, floMacDyn.Nrpm); end SpeedControlled_Nrpm;