Computer Simulation of Spark-Ignition Engine Processes Presents the fundamental theory of SI engine processes along with the governing equations. It provides a simplified framework for the technical literature on SI engines, with emphasis on thermodynamics, combustion physics and chemistry, heat transfer and fiction processes. The book includes a software program which will not only serve as a model for simulation but will also assist students in developing new programs. Salient Features A pioneering work on computer simulation of SI engine processes. The only that gives a computer source code, which enables many parametric studies, and is at the same time modifiable. Use step-by-step approach that helps in better understanding of the complexities of SI engine simulation. Includes several worked-out examples and exercises in all chapters. With all the above features, the book should be extremely useful to undergraduate and postgraduate students of mechanical engineering. It should also form a reference to research students and practising engineers working related areas. About The Author V Ganesan is Professor in the Department of Mechanical Engineering, Indian Institute of Technology, Madras. He obtained his Ph.D. from the same institute and later did postdoctoral research at the Imperial College of Science and Technology, London. He has been teaching and guidng research since 1967 and has over 200 publications in both international and national journals to his credit. He has authored a basic book Internal Combustion Engines published by Tata McGraw-Hill. He is member of the International Combustion Institute (USA), Institute of Engineers (India) and the Institute of Automobile Engineers. Table of Contents Preface List of symbols Chapter 1 Introduction Simulation Advantages of computer simulation Objective of the book Step-by-step approach Chapter 2 Reactive Process Introduction Heat of reaction Measurement of Urp Measurement of Hrp Solved examples Exercise Chapter 3 Adiabatic Flame Temperature Introduction Complete combustion in C/H/O/N systems Constant-volume adiabatic combustion Constant-pressure adiabatic combustion Calculation of adiabatic flame temperature Solved examples Exercise Chapter 4 Isentropic Changes of State Introduction Summary Exercise Chapter 5 Spark-Ignition Engines Introduction Some basic details and nomenclature Cylinder pressure indicator diagram Indicated power Simulation of SI Engine Process Brake power Working principle Engine kinematics Exercise Chapter 6 SI Engine Simulation with Air as Working Medium Introduction Ideal Otto cycle Simulation with air as the working medium Deviation between actual and ideal cycle Solved examples Exercise Chapter 7 SI Engine Simulation with Adiabatic Combustion Introduction Engine details Temperature drop due to fuel vapourisation Full throttle operation Work output and efficiency calculations Part throttle operation Engine performance at part throttle Supercharged operation Exercise Chapter 8 SI Engine Simulation with Progressive Combustion Introduction Progressive combustion Chapter 9 SI Engine Simulation Process Introduction Gas exchange process Heat transfer process Fiction calculations Comparison of simulated values Validation of th computer code Engine performance simulation Pressure-crank angle diagrams Brake power Brake thermal efficiency Mechanical efficiency Volumetric efficiency Effect of speed on performance Chapter 10 Simulation of two-stroke SI Engines Introduction Exercise Appendix A Units and thermodynamic properties Appendix B Solution for F(T) = 0 Newton-Raphson iteraction technique Appendix C Algebraic expression for thermodynamic functions Appendix D Input data required Variable name corresponding to input data required Program Meaning of major variables used in the program Bibliography Index