modelBoilerPolynomial
Boilers with efficiency specified by polynomial and with open loop control
Extends from Modelica.Icons.Example.
Information
This example demonstrates the open loop response of the boiler
model for a control signal that is first a ramp from 0
to 1, followed by a step that switches the boilers off and
then on again.
The instances of the boiler models are parameterized
so that boi1 is a dynamic model and
boi2 is a steady-state model.
Parameters
| Type | Name | Default | Description |
|---|
| Modelica.Units.SI.Power | Q_flow_nominal | 3000 | Nominal power |
| Modelica.Units.SI.Temperature | dT_nominal | 20 | Nominal temperature difference |
| Modelica.Units.SI.MassFlowRate | m_flow_nominal | Q_flow_nominal/dT_nominal/4200 | Nominal mass flow rate |
| Modelica.Units.SI.PressureDifference | dp_nominal | 3000 | Pressure drop at m_flow_nominal |
Components
| Type | Name | Default | Description |
|---|
| Buildings.Fluid.Sources.Boundary_pT | sin | | Sink |
| Buildings.Fluid.Sources.Boundary_pT | sou | | |
| Modelica.Blocks.Sources.TimeTable | y | | |
| Buildings.Fluid.Boilers.BoilerPolynomial | boi1 | | Boiler |
| Buildings.HeatTransfer.Sources.FixedTemperature | TAmb1 | | Ambient temperature in boiler room |
| Buildings.Fluid.Boilers.BoilerPolynomial | boi2 | | Boiler |
| Buildings.HeatTransfer.Sources.FixedTemperature | TAmb2 | | Ambient temperature in boiler room |
Contents
| Name | Description |
|---|
| Medium | Medium model |
Revisions
-
January 22, 2016, by Michael Wetter:
Corrected type declaration of pressure difference.
This is
for #404.
-
December 22, 2014 by Michael Wetter:
Removed Modelica.Fluid.System
to address issue
#311.
-
April 27, 2013, by Michael Wetter:
Removed first order filter from the output of the table.
This is not needed and leads to a dynamic state selection.
-
November 1, 2011 by Michael Wetter:
First implementation.