recordGeneric

Generic data record for movers

Extends from Modelica.Icons.Record (Icon for records).

Information

Record containing parameters for pumps or fans.

Typical use

This record may be used to assign for example fan performance data using declaration such as

  Annex60.Fluid.Movers.SpeedControlled_y fan(
    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}))) "Fan";

This data record can be used with Annex60.Fluid.Movers.SpeedControlled_Nrpm, Annex60.Fluid.Movers.SpeedControlled_y, Annex60.Fluid.Movers.FlowControlled_dp, Annex60.Fluid.Movers.FlowControlled_m_flow.

An example that uses manufacturer data can be found in Annex60.Fluid.Movers.Validation.Pump_Nrpm_stratos.

Parameters in RPM

The parameters speed_rpm_nominal, constantSpeed_rpm and speeds_rpm are used to assign the non-dimensional speeds

  parameter Real constantSpeed(final min=0, final unit="1") = constantSpeed_rpm/speed_rpm_nominal;
  parameter Real[:] speeds(each final min = 0, each final unit="1") = speeds_rpm/speed_rpm_nominal;

In addition, speed_rpm_nominal is used in Annex60.Fluid.Movers.SpeedControlled_Nrpm to normalize the control input signal. Otherwise, these speed parameters in RPM are not used in the models.

Parameters

Type	Name	Default	Description
Boolean	havePressureCurve	sum(pressure.V_flow) > Modelica.Constants.eps and sum(pressure.dp) > Modelica.Constants.eps	= true, if default record values are being used
Pressure curve
Annex60.Fluid.Movers.BaseClasses.Characteristics.flowParameters	pressure		Volume flow rate vs. total pressure rise
Power computation
Boolean	use_powerCharacteristic	false	Use power data instead of motor efficiency
Annex60.Fluid.Movers.BaseClasses.Characteristics.efficiencyParameters	hydraulicEfficiency		Hydraulic efficiency (used if use_powerCharacteristic=false)
Annex60.Fluid.Movers.BaseClasses.Characteristics.efficiencyParameters	motorEfficiency		Electric motor efficiency (used if use_powerCharacteristic=false)
BaseClasses.Characteristics.powerParameters	power		Volume flow rate vs. electrical power consumption (used if use_powerCharacteristic=true)
Motor heat rejection
Boolean	motorCooledByFluid	true	If true, then motor heat is added to fluid stream
Normalized speeds (used in model, default values assigned from speeds in rpm
Real	speed_nominal	1	Nominal rotational speed for flow characteristic
Real	constantSpeed	constantSpeed_rpm/speed_rpm_nominal	Normalized speed set point, used if inputType = Annex60.Fluid.Types.InputType.Constant
Real	speeds	speeds_rpm/speed_rpm_nominal	Vector of normalized speed set points, used if inputType = Annex60.Fluid.Types.InputType.Stages
Speeds in RPM
Modelica.SIunits.Conversions.NonSIunits.AngularVelocity_rpm	speed_rpm_nominal	1500	Nominal rotational speed for flow characteristic
Modelica.SIunits.Conversions.NonSIunits.AngularVelocity_rpm	constantSpeed_rpm	speed_rpm_nominal	Speed set point, used if inputType = Annex60.Fluid.Types.InputType.Constant
Modelica.SIunits.Conversions.NonSIunits.AngularVelocity_rpm	speeds_rpm	{speed_rpm_nominal}	Vector of speed set points, used if inputType = Annex60.Fluid.Types.InputType.Stages

Revisions

February 19, 2016, by Filip Jorissen:
Refactored model such that SpeedControlled_Nrpm, SpeedControlled_y and FlowControlled are integrated into one record. This is for #417.
February 17, 2016, by Michael Wetter:
Changed parameter N_nominal to speed_rpm_nominal as it is the same quantity as speeds_rmp. This is for #396.
January 19, 2016, by Filip Jorissen:
Added parameter speeds_rpm. This is for #396.
February 13, 2015, by Michael Wetter:
Updated documentation.
January 6, 2015, by Michael Wetter:
Revised record for OpenModelica.
November 22, 2014 by Michael Wetter:
First implementation.