This text on gas turbines has been prepared keeping in mind the need of a first level textbook for the undergraduate and graduate students as well as a reference for practising engineers. When I started writing the manuscript a few years ago, to my knowledge, suitable text material was practically non-existent especially in SI units and it seems to be true even today. It is my earnest hope that this textbook will simplify the teaching of this important subject.

This book is primarily intended for undergraduate/postgraduate students. Hence, I have endeavoured to explain the various topics right from the fundamentals so that even a beginner can understand the exposition. Besides, topics such as inlets, blades, environmental consideration etc. are included to help the practising engineers as well. Professionals who are engaged in the design and development of various power plants, who are often called upon to undertake the work related to gas turbines, will find this book extremely useful.

SI units have been consistently used throughout the book. The book includes a large number of typical worked out examples and several illustrative figures for an easier understanding of the subject. Exercises with answers have been given in various chapters so that the inquisitive students may solve these problems and compare their answers with the answers provided.

A lot of technical literature is available on this subject and owing to the rate at which these technical papers now appear, a comprehensive bibliography has not been included. However, a few references have been selected and are appended to appropriate chapters. The text material is divided into six parts.

• Introduction and fundamentals (Chapters 1 to 4)


• Cycle analysis (Chapters 5 to 7)


• Compressors (Chapters 8 and 9)


• Combustion chambers (Chapter 10)


• Turbines (Chapter 11)


• Advanced topics (Chapters 12 to 15)


• By dividing the chapters in the above manner, it may be seen that the work has been organized to form a continuous logical narrative.

It would be impossible to refer in detail to all those who have been consulted in the compilation of this work. I am thankful to my gas turbines course students of 1999 batch, for their help in checking the worked out as well as exercise problems.

I am thankful for the help and support received from the colleagues of the department and sister departments of IIT Madras. I am particularly grateful to Prof. P. Srinivasa Rao and Prof. S. Sampath who spared a great amount of their valuable time in correcting the entire manuscript. Their critical comments and suggestions were of immense help in improving the presentation. I wish to express my thanks to the Centre for Continuing Education for encouraging me to write this book and helping me in the preparation of this manuscript.

I will be failing in my duty if I do not acknowledge the help of the family members, Ms. P. Rajalakshmi, Ms. Vijayashree, Mr. Venkatasubramanian and Ms. Aparna. Words are not sufficient to express my gratitude to Ms. Vijayashree who has put her heart and soul in the preparation of the book. My sincere thanks to all of them.

I will be grateful for any constructive criticism for further improvement of the book.

V GANESAN

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