Week-6 : Turbocharger Modelling

A turbocharger is a forced induction device and it increases the IC engine power out put by forcing extra compressed air in to the combustion chamber.This results ultimately increases the effeciency of the engine.

1)Fixed Turbocharger

2) Waste gate Turbochager

3)Variable geometry Turbine

Fixed Turbochrger Model

Waste Gate Turbocharger Model

Variable Geometry Turbine

Engine Model with out Turbocharger

Engine with Turbocharger

By comparing both the models Engine with turbocharger model shows more brake power and Torque than the Engine with out turbocharger

Tutorial 7

Compressor map and

Turbine Map

Q4) In which application Variable geometry turbine is benificial?

* Higher air-fuel ratio and higher torque at low engine speed

* Improved vehicles acceleration

* Increases TExhaust temperature for after treatment system mangement

Diesel VGT EGR

• The engine is a four cylinder four stroke diesel engine
• Inter cooler is present in the model to reduce the temperature of compressed air
• The exhaust gas recirculation system is present to decrease the temperature of cylinder by mixing with the incoming air