modelEffectivenessNTUMassFlow
Partial model of epsilon-NTU coil that tests variable mass flow rates
Parameters
| Type | Name | Default | Description |
|---|---|---|---|
| Modelica.Units.SI.Temperature | T_a1_nominal | 5 + 273.15 | Nominal water inlet temperature |
| Modelica.Units.SI.Temperature | T_b1_nominal | 10 + 273.15 | Nominal water outlet temperature |
| Modelica.Units.SI.Temperature | T_a2_nominal | 30 + 273.15 | Nominal air inlet temperature |
| Modelica.Units.SI.Temperature | T_b2_nominal | 15 + 273.15 | Nominal air outlet temperature |
| Modelica.Units.SI.HeatFlowRate | Q_flow_nominal | m1_flow_nominal*4200*(T_a1_nominal - T_b1_nominal) | Nominal heat transfer |
| Modelica.Units.SI.MassFlowRate | m1_flow_nominal | 0.1 | Nominal mass flow rate medium 1 |
| Modelica.Units.SI.MassFlowRate | m2_flow_nominal | m1_flow_nominal*4200/1000*(T_a1_nominal - T_b1_nominal)/(T_b2_nominal - T_a2_nominal) | Nominal mass flow rate medium 2 |
Components
| Type | Name | Default | Description |
|---|---|---|---|
| Buildings.Fluid.Sources.MassFlowSource_T | sin_2 | Sink for air | |
| Buildings.Fluid.Sources.Boundary_pT | sou_2 | Source for air | |
| Buildings.Fluid.Sources.MassFlowSource_T | sin_1 | Sink for water | |
| Buildings.Fluid.Sources.Boundary_pT | sou_1 | Source for water | |
| Modelica.Blocks.Sources.Constant | relHum | Relative humidity | |
| Buildings.Utilities.Psychrometrics.X_pTphi | x_pTphi | ||
| Modelica.Blocks.Sources.Constant | temSou_2 | Temperature boundary condition | |
| Modelica.Blocks.Math.Gain | mWat_flow | Water mass flow rate | |
| Modelica.Blocks.Sources.TimeTable | mWatGai | Gain for water mass flow rate | |
| Modelica.Blocks.Sources.TimeTable | mAirGai | Gain for air mass flow rate | |
| Modelica.Blocks.Math.Gain | mAir_flow | Air mass flow rate |
Contents
| Name | Description |
|---|---|
 Medium1 | Medium model for water |
 Medium2 | Medium model for air |