While the fundamental concepts in any discipline are relatively invariant, the problems it faces keep changing. Combustion Engineering is for engineers who wish to understand combustion fundamentals and apply them to engineering problems. In several instances, the authors have included physical explanations along with the mathematical relations and equations so that the principles can be applied to solve real world combustion and pollution problems. The book contains an outline of the corpuscular aspects of thermodynamics and introduces the background related to properties of solid, liquid and gaseous fuels. Exercise problems are included at the end of each chapter.