modelCyclePseudoInversion
Turbocharged diesel engine
Extends from ThermofluidStream.Idealized.Examples.TUMExercisesThermodynamicCycles.Exercise5TurboChargedDieselEngine.BaseModel (Defines the parameters).
Information
Example of a turbocharged Diesel engine cycle. See TUMExercisesThermodynamicCycles.Exercise5TurboChargedDieselEngine for the problem description.
This example makes use of the systemSpec = Cycle SystemModel for the Diesel engine.
When coupling models configured with systemSpec = Cycle and systemSpec = Flow,
the FlowWork model is required,
since flow work must be treated explicitly to ensure a consistent energy balance between both representations.
A "pseudo controller" is used to avoid the implicit nonlinear equation.
Parameters
| Type | Name | Default | Description |
|---|---|---|---|
| SI.AngularVelocity | w (from BaseModel) | 209.43951023932 | Engine speed |
| Integer | z (from BaseModel) | 6 | Number of cylinders |
| SI.Volume | V3 (from BaseModel) | 0.0025 | Volume bottom dead center (per cylinder) |
| Medium.Temperature | T1 (from BaseModel) | 300 | Environmental temperature |
| Medium.AbsolutePressure | p1 (from BaseModel) | 100000 | Environmental pressure |
| Medium.AbsolutePressure | p2 (from BaseModel) | 120000 | Compressor outlet pressure |
| Medium.AbsolutePressure | p4 (from BaseModel) | 80.62e5 | Pressure after engine compression |
| Medium.Temperature | T5 (from BaseModel) | 1700 | Temperature after combustion |
| Medium.ThermodynamicState | state3 (from BaseModel) | Medium.setState_pT(p2, T1) | Engine inlet state |
| Medium.Density | rho3 (from BaseModel) | Medium.density(state3) | Density before compression |
| SI.Mass | m3 (from BaseModel) | rho3*V3 | Mass bottom dead center (per cylinder) |
Components
Revisions
-
2026, by Raphael Gebhart (raphael.gebhart@dlr.de):
Initial version.