AM4014 IC Engine Process Modeling Syllabus:

AM4014 IC Engine Process Modeling Syllabus – Anna University PG Syllabus Regulation 2021

OBJECTIVES

1. To impart knowledge in modeling the Internal combustion engine processes and acquire knowledge in different types of engine models and their importance
2. To understand the calculation of heat of reaction, air fuel ratio and flame temperature for developing a thermodynamic engine model.
3. To acquire knowledge on the detailed concept of air standard, fuel air cycle, progressive and actual cycle simulation of SI engine.
4. To understand the gas exchange process and develop models for the intake and exhaust processes.
5. To develop a complete theoretical engine model for the SI engine and differentiate the model from CI engine model.

UNIT I INTRODUCTION TO SIMULATION

Introduction to Simulation, Advantages of computer simulation, Classification of engine models. Intake and exhaust flow models – Quasi steady flow -Filling and emptying -Gas dynamic Models. Thermodynamic based in cylinder models. Step by step approach in SI engine simulation. Overview of modeling softwares.

UNIT II STOICHIOMETRY AND ADIABATIC FLAME TEMPERATURE

Reactive processes, Heat of reaction, measurement of URP, measurement of HRP. Introduction – combustion equation for hydrocarbon fuels. Calculation of minimum air, excess air and stoichiometric air required for combustion. Introduction, complete combustion in C-HN-O systems, constant volume adiabatic combustion, constant pressure adiabatic combustion, calculation of adiabatic flame temperature, isentropic changes of state.

UNIT III SI ENGINE SIMULATION

SI Engine simulation with air as working medium, deviation between actual and ideal cycle. Fuel air cycle analysis – Temperature drop due to fuel vaporization, full throttle operation, work output and efficiency calculation, part-throttle operation, engine performance at part throttle, super charged operation. SI Engines simulation with progressive combustion. Models for mass burnt fraction.

UNIT IV SI ENGINE SIMULATION WITH GAS EXCHANGE PROCESS

Introduction, gas exchange process, Heat transfer process, friction calculations, comparison of simulated values, validation of the computer code, engine performance simulation, pressure crank angle diagram, brake power, brake thermal efficiency, effect of speed on performance and analysis of the data.

UNIT V ENGINE SIMULATION FOR CI AND ADVANCED ENGINES

Zero, one and multizone models for diesel engine combustion. Wiebe’s Model, Whitehouse model and Watson model for diesel combustion. Heat release rate and heat transfer models. Equilibrium calculations. Engine modeling for dual fuel engine- Multifuel engines. Programming of the modeling process and validation of the models. Parametric studies on simulated engine performance.

TOTAL: 45 PERIODS

OUTCOMES

1. Students will understand the classifications and applications of engine cycle simulation model and grasp the major modeling and simulation methods and the influence of model parameters on engine performance.
2. They will be able to calculate the heat of reaction, fuel air ratio and flame temperature for developing a thermodynamic engine model
3. They will acquire knowledge on the detailed concept of air standard, fuel air cycle, progressive and actual cycle simulation of SI engine.
4. Students will become familiar with the modeling of progressive combustion and gas exchange processes and ability to build up control-oriented simulation model of internal combustion engines
5. They will get familiarized with the essential models of engine cycle simulation and theoretical knowledge to control the calculation accuracy and calculation efficiency of engine performance, combustion and emission.

REFERENCES

1. Ashley Campbel, “Thermodynamic analysis of combustion engines”, John Wiley & Sons, New York, 1986.
2. Benson.R.S., Whitehouse.N.D., “Internal Combustion Engines”, Pergamon Press, oxford, 1979
3. Ganesan.V. “Computer Simulation of spark ignition engine process”, Universities Press (I) Ltd, Hyderbad, 1996.
4. John. B. Heywood, ’Internal Combustion Engines’”, Tata McGraw Hill Co., Newyork, 2017.
5. Ramoss.A.L., “Modelling of Internal Combustion Engines Processes”, McGraw Hill Publishing Co., 1992.