modelHeaterAndFixtureDirectHeatExchangerWithElectricHeat
Example model for direct heat exchanger with auxiliary electric heater
Extends from Modelica.Icons.Example (Icon for runnable examples).
Information
Example model of a fresh water station that heats up domestic hot water. Input is a load profile which is sent to a model that computes the hot and cold water draw. The domestic hot water is produced by a heat exchanger with a district water source and optionally an electric heater. Examples with and without the electric heater are shown.
Components
| Type | Name | Default | Description |
|---|---|---|---|
| Buildings.Fluid.Sources.Boundary_pT | souCol | Source of domestic cold water | |
| Buildings.DHC.Loads.HotWater.ThermostaticMixingValve | theMixVal | Ideal thermostatic mixing valve | |
| Buildings.Fluid.Sources.MassFlowSource_T | souDisAmb | Source of district water from ambient network | |
| Modelica.Blocks.Sources.Constant | conTHotSet | Temperature setpoint for hot water supply to fixture | |
| Buildings.Fluid.Sources.Boundary_pT | sinDis | Sink of district network water | |
| Modelica.Blocks.Sources.Constant | conTSetMix | Temperature setpoint for mixed water supply to fixture | |
| Buildings.DHC.Loads.HotWater.DirectHeatExchangerWithElectricHeat | gen | Hot water generated by heat exchanger and auxiliary heat | |
| Modelica.Blocks.Sources.CombiTimeTable | sch | Domestic hot water fixture draw fraction schedule | |
| Buildings.DHC.Loads.HotWater.DirectHeatExchangerWithElectricHeat | genNoEle | Hot water generated by heat exchanger without auxiliary heat | |
| Buildings.DHC.Loads.HotWater.ThermostaticMixingValve | theMixValNoEle | Ideal thermostatic mixing valve | |
| Buildings.Fluid.Sources.MassFlowSource_T | souDisHot | Source of district water from hot network |
Contents
| Name | Description |
|---|---|
 Medium | Medium model |
Revisions
-
Nov 15, 2023, by David Blum:
First implementation.