modelPowerEuler

Power calculation comparison among three mover types, using Euler number computation for m_flow and dp

Extends from BuildingSystems.Fluid.Movers.Validation.PowerSimplified (Power calculation comparison among three mover types, using simplified power computation for m_flow and dp).

Information

This example is identical to BuildingSystems.Fluid.Movers.Validation.PowerSimplified, except that the efficiency of the flow controlled pumps pump_dp and pump_m_flow is estimated by using the Euler number and its correlation as implemented in BuildingSystems.Fluid.Movers.BaseClasses.Euler.

The figure below shows the approximation error for the power calculation where the speed y differs from the nominal speed y_nominal.

Type	Name	Default	Description
Modelica.Units.SI.MassFlowRate	m_flow_nominal (from PowerSimplified)	3	Nominal mass flow rate
BuildingSystems.Fluid.Movers.Data.Pumps.Wilo.Stratos30slash1to8	per (from PowerSimplified)		Pump performance data
BuildingSystems.Fluid.Movers.Data.Generic	perPea		Peak condition

Type	Name	Description
BuildingSystems.Fluid.Movers.SpeedControlled_y	pump_y (from PowerSimplified)	Pump with normalised speed y as control signal
BuildingSystems.Fluid.Movers.FlowControlled_dp	pump_dp (from PowerSimplified)	Pump with pressure rise as control signal
BuildingSystems.Fluid.Movers.FlowControlled_m_flow	pump_m_flow (from PowerSimplified)	Pump with mass flow rate as control signal
BuildingSystems.Fluid.Sources.Boundary_pT	bou (from PowerSimplified)	Pressure source
BuildingSystems.Fluid.FixedResistances.PressureDrop	res (from PowerSimplified)	Flow resistance
BuildingSystems.Fluid.Sources.Boundary_pT	sink (from PowerSimplified)
Modelica.Blocks.Sources.Ramp	y (from PowerSimplified)	Ramp for pump normalised speed control signal
Modelica.Blocks.Sources.RealExpression	dpSet (from PowerSimplified)	Pressure rise across pump
Modelica.Blocks.Sources.RealExpression	m_flowSet (from PowerSimplified)	Pump mass flow rate
Modelica.Blocks.Routing.Multiplex3	result (from PowerSimplified)