AU3024 IC Engine Process Modeling Syllabus:
AU3024 IC Engine Process Modeling Syllabus – Anna University Regulation 2021
COURSE OBJECTIVES:
The objective of this course is to provide the students with knowledge on simulation of IC engine considering the stoichiometric ratio and adiabatic flame temperature.
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.
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-H-N-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, compression 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.
UNIT V CI ENGINE SIMULATION
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. Parametric studies on simulated engine performance.
TOTAL: 45 PERIODS
COURSE OUTCOMES:
At the end of the course, the student will be able to
1. Acquire knowledge on simulation of IC engine components.
2. Apply the principle of the stoichiometric ratio and adiabatic flame temperature.
3. Develop a simulation model for SI and CI engine.
4. Understand the concept of gas exchange process in SI engine.
5. Perform parametric studies on simulated engine performance.
TEXT BOOKS:
1. Ganesan.V. “Computer Simulation of spark ignition engine process”, Universities Press (I) Ltd, Hyderbad, 1996.
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. John. B. Heywood, ’Internal Combustion Engines’”, Tata McGraw Hill Co., Newyork, 1988.
4. Ramoss.A.L., “Modelling of Internal Combustion Engines Processes”, McGraw Hill Publishing Co., 1992.