modelQuadraticCurve_table
Quadratic efficiency characteristic curve, including linear extrapolation
Extends from PartialEfficiencyChar (Base class for pump efficiency characteristics.).
Parameters
| Type | Name | Default | Description |
|---|---|---|---|
| Real[3,2] | table | [0, 0.0; V_flow_nominal, 1.0; 1.5*V_flow_nominal, 0.5] | Nominal curve. column 1 = volume flow rate, column 2 = efficiency |
| SI.VolumeFlowRate | V_flow_curve | table[:, 1] | Volume flow rate for three operating points (single pump) |
| SI.Height[size(table, 1)] | eta_curve | table[:, 2] | Efficiency for three operating points |
| Internal Interface › Initialization | |||
| SI.VolumeFlowRate | V_flow_start (from PartialEfficiencyChar) | ||
| Internal Interface › Nominal Operating Parameters | |||
| Modelica.Units.NonSI.AngularVelocity_rpm | N_nominal (from PartialEfficiencyChar) | Pump speed | |
| SI.Length | diameter_nominal (from PartialEfficiencyChar) | Impeller Diameter | |
| SI.VolumeFlowRate | V_flow_nominal (from PartialEfficiencyChar) | Nominal volumetric flow rate | |
Components
| Type | Name | Default | Description |
|---|---|---|---|
| SI.VolumeFlowRate | V_flow (from PartialEfficiencyChar) | ||
| Medium.ThermodynamicState | state (from PartialEfficiencyChar) | Thermodynamic state | |
| Modelica.Units.NonSI.AngularVelocity_rpm | N (from PartialEfficiencyChar) | Pump speed | |
| SI.Length | diameter (from PartialEfficiencyChar) | Impeller Diameter | |
| SI.Efficiency | eta (from PartialEfficiencyChar) | Efficiency | |
| Units.NonDim | affinityLaw_flow (from PartialEfficiencyChar) | (N/N_nominal)*(diameter/diameter_nominal)^3 | Affinity law for scaling |
| Units.NonDim | affinityLaw_efficiency (from PartialEfficiencyChar) | 1.0 | Affinity law for scaling |