modelConstant

Constant efficiency
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Extends from TRANSFORM.Fluid.Pipes_Obsolete.ClosureModels.PumpCharacteristics.Models.Efficiency.PartialEfficiencyChar (Base class for pump efficiency characteristics.).

Parameters

TypeNameDefaultDescription
SI.VolumeFlowRateV_flow_nominal (from PartialEfficiencyChar)m_flow_nominal/rho_nominalNominal volumetric flow rate
SI.Heighthead_nominal (from PartialEfficiencyChar)dp_nominal/(rho_nominal*Modelica.Constants.g_n)Nominal head
BooleanisPump (from PartialEfficiencyChar)true=true then affinity laws for pump else fan
SI.MassFlowRatem_flow_start (from PartialEfficiencyChar)
SI.Pressurep_a_start (from PartialEfficiencyChar)
SI.Pressurep_b_start (from PartialEfficiencyChar)
SI.SpecificEnthalpyh_start (from PartialEfficiencyChar)
SI.PressureDifferencedp_start (from PartialEfficiencyChar)p_b_start - p_a_start
SI.Densityrho_start (from PartialEfficiencyChar)Medium.density_ph(p_b_start, h_start)
SI.VolumeFlowRateV_flow_start (from PartialEfficiencyChar)m_flow_start/rho_start
SI.Efficiencyeta_constant1.0Constant efficiency
Internal Interface › Nominal Operating Parameters:
SI.MassFlowRatem_flow_nominal (from PartialEfficiencyChar)Mass flow rate
SI.Densityrho_nominal (from PartialEfficiencyChar)Density
Modelica.Units.NonSI.AngularVelocity_rpmN_nominal (from PartialEfficiencyChar)Pump speed
SI.Lengthdiameter_nominal (from PartialEfficiencyChar)Impeller Diameter
SI.PressureDifferencedp_nominal (from PartialEfficiencyChar)Nominal pressure gain

Components

TypeNameDefaultDescription
Medium.ThermodynamicStatestate (from PartialEfficiencyChar)Thermodynamic state
SI.MassFlowRatem_flow (from PartialEfficiencyChar)Mass flow rate
Modelica.Units.NonSI.AngularVelocity_rpmN (from PartialEfficiencyChar)Pump speed
SI.Lengthdiameter (from PartialEfficiencyChar)Impeller Diameter
SI.Densityrho (from PartialEfficiencyChar)Medium.density(state)Density
SI.VolumeFlowRateV_flow (from PartialEfficiencyChar)m_flow/rhoVolumetric flow rate
SI.Efficiencyeta (from PartialEfficiencyChar)Efficiency