modelHeatExchanger
Model that demonstrates use of a waterside economizer with outlet temperature control
Extends from Modelica.Icons.Example (Icon for runnable examples).
Information
This example demonstrates how the parameter use_controller influences
the temperautre at port_b2. The temperature at port_b2
can be controlled in hex1 where the controller is activated.
Parameters
| Type | Name | Default | Description |
|---|---|---|---|
| Modelica.Units.SI.MassFlowRate | m1_flow_nominal | 1000*0.01035 | Nominal mass flow rate at evaporator |
| Modelica.Units.SI.MassFlowRate | m2_flow_nominal | 1000*0.01035 | Nominal mass flow rate at condenser |
| Modelica.Units.SI.Pressure | dp1_nominal | 60000 | Nominal pressure difference on medium 1 side |
| Modelica.Units.SI.Pressure | dp2_nominal | 60000 | Nominal pressure difference on medium 2 side |
Components
| Type | Name | Default | Description |
|---|---|---|---|
| Buildings.Applications.DataCenters.ChillerCooled.Equipment.HeatExchanger_TSet | hex1 | Water-to-water heat exchanger with built-in PID controller to control the temperature at port_b2 | |
| Buildings.Applications.DataCenters.ChillerCooled.Equipment.HeatExchanger_TSet | hex2 | Water-to-water heat exchanger without built-in controllers to control the temperature at port_b2 | |
| Buildings.Fluid.Sources.Boundary_pT | sin1 | Sink on medium 1 side | |
| Buildings.Fluid.Sources.MassFlowSource_T | sou1 | Source on medium 1 side | |
| Modelica.Blocks.Sources.TimeTable | TCon_in | Condenser inlet temperature | |
| Buildings.Fluid.Sources.Boundary_pT | sin2 | Sink on medium 2 side | |
| Buildings.Fluid.Sources.MassFlowSource_T | sou2_2 | Source on medium 2 side | |
| Modelica.Blocks.Sources.Constant | TEva_in | Evaporator inlet temperature | |
| Buildings.Fluid.Sensors.TemperatureTwoPort | TSen1 | Temperature sensor | |
| Buildings.Fluid.Sensors.TemperatureTwoPort | TSen2 | Temperature sensor | |
| Modelica.Blocks.Sources.Constant | TSet | Leaving chilled water temperature setpoint | |
| Buildings.Fluid.Sources.MassFlowSource_T | sou2_1 | Source on medium 2 side | |
| Modelica.Blocks.Sources.Constant | TEva_in1 | Evaporator inlet temperature |
Contents
| Name | Description |
|---|---|
 MediumW | Medium model |
Revisions
-
July 22, 2017, by Yangyang Fu:
First implementation.