modelPump

Container class for circulating pumps

Extends from Buildings.Fluid.Interfaces.LumpedVolumeDeclarations, Buildings.Fluid.Interfaces.PartialTwoPortInterface.

Information

This is a container class for pump models from Buildings.Fluid.Movers.

Two parameters allow configuring the model.

The parameter typ enables selecting the type of pump based on the enumeration Buildings.Fluid.HydronicConfigurations.Types.Pump. If "No pump" is selected the model resolves into a simple fluid direct pass-through.
The parameter typMod enables selecting the type of pump model based on the enumeration Buildings.Fluid.HydronicConfigurations.Types.PumpModel.

The model takes the following input variables that are conditional to the parameter typ.

Variable	Type (unit)	Condition	Description
`y1`	Boolean	Only available if `typ<>None`	Start signal
`y`	Real (-)	Only available if `typ==VariableInput`	Analog control signal. Whatever the type of pump model (specified with `typMod`) the container class takes a non-dimensional input between 0 and 1.

Type	Name	Default	Description
Buildings.Fluid.Movers.Data.Generic	per
Boolean	addPowerToMedium	true	Set to false to avoid any power (=heat and flow work) being added to medium (may give simpler equations)
Configuration
Buildings.Fluid.HydronicConfigurations.Types.Pump	typ	Buildings.Fluid.HydronicConfigurations.Types.Pump.VariableInput	Type of secondary pump
Buildings.Fluid.HydronicConfigurations.Types.PumpModel	typMod	Buildings.Fluid.HydronicConfigurations.Types.PumpModel.Speed	Type of pump model
Nominal condition
Modelica.Units.SI.PressureDifference	dp_nominal		Pump head at design conditions
Control
Buildings.Fluid.Types.InputType	inputType	Buildings.Fluid.Types.InputType.Continuous	Control input type
Dynamics › Motor speed
Boolean	use_riseTime	true	Set to true to continuously change motor speed
Modelica.Units.SI.Time	riseTime	30	Time needed to change motor speed between zero and full speed
Modelica.Blocks.Types.Init	init	Modelica.Blocks.Types.Init.InitialOutput	Type of initialization (no init/steady state/initial state/initial output)

Type	Name	Default	Description
Modelica.Units.SI.VolumeFlowRate	VMachine_flow	V_flow.V_flow	Volume flow rate
Modelica.Units.SI.PressureDifference	dpMachine	port_b.p - port_a.p	Pressure rise
Buildings.Controls.OBC.CDL.Interfaces.RealInput	y		Analog control signal
Buildings.Controls.OBC.CDL.Interfaces.BooleanInput	y1		Start signal
Buildings.Controls.OBC.CDL.Interfaces.RealOutput	y_actual		Actual pump input value that is used for computations
Buildings.Controls.OBC.CDL.Interfaces.RealOutput	P		Electrical power consumed
Modelica.Thermal.HeatTransfer.Interfaces.HeatPort_a	heatPort		Heat dissipation to environment
Movers.FlowControlled_dp	pumDp		Pump with ideally controlled head as input signal
Movers.SpeedControlled_y	pumSpe		Pump with ideally controlled normalized speed as input
Movers.FlowControlled_m_flow	pumFlo		Pump with ideally controlled mass flow rate as input
Sensors.VolumeFlowRate	V_flow		Volume flow rate
Buildings.Controls.OBC.CDL.Reals.MultiplyByParameter	scaHea		Scale control input to design head
Buildings.Controls.OBC.CDL.Reals.MultiplyByParameter	scaSpe		Scale control input to design speed
Buildings.Controls.OBC.CDL.Reals.MultiplyByParameter	scaFlo		Scale control input to design flow rate
Buildings.Controls.OBC.CDL.Reals.Sources.Constant	zer		Zero
Buildings.Controls.OBC.CDL.Reals.Switch	swi		Switch on/off
Buildings.Controls.OBC.CDL.Reals.Sources.Constant	One		one
FixedResistances.LosslessPipe	noPum		Direct fluid pass-through in case of no pump

April 4, 2023, by Hongxiang Fu:
Deleted the mover with Nrpm signal. This is for IBPSA, #1704.
June 30, 2022, by Antoine Gautier:
First implementation.