modelPartialSteamGenerator
Drum boiler with natural circulation
Information
Description
This example shows a natural circulation boiler with pressure and a level control. In the beginning there will be some transients due to the system is not started in steady-state.
At time=170 s the heat flow rate is decreased. This will decrease the amount of steam produced in the drum and the pressure will decrease. The pressure control system will then decrease the valve opening at the steam port in order to maintain the desired pressure.
Simulation setup
Simulate for 500s using Dassl with a tolerance of 1e-5.
Output
Variables of interest are pressure p, temperaure T and level y in component drum.
Parameters
| Type | Name | Default | Description |
|---|---|---|---|
| Real | conversion_feet_to_m | 0.3048 | Conversion feet to meter |
| Real | conversion_inch_to_m | 0.0254 | Inch to meter |
| Modelica.SIunits.Area | Aheat_calc_outerTubes | 1838*60*conversion_feet_to_m*3.141*1.25*conversion_inch_to_m |
Connectors
| Type | Name | Default | Description |
|---|---|---|---|
| Interfaces.FluidPort_State | port_feedWater | ||
| Interfaces.FluidPort_Flow | drain_steam | ||
| Control.ControlBuses.ControlBus_SteamGenerator | controlBus |
Components
Contents
| Name | Description |
|---|---|
 Medium |