This book adopts a generalized approach to modelling various engineering systems in such a way that the underlying principles can be applied to any new system. There is exhaustive coverage of all topics related to plant simulation; it covers process modelling, analysis, simulation, as well as optimization. A section is devoted to non-traditional optimization techniques, which would be useful not only for students, but also for researchers, professionals, consultants, and industrialists. Babu discusses case studies on specific-purpose simulation and dynamic simulation, and also includes an overview of professional software packages used in plant simulation like HYSIS.