PREFACE This text on gas turbines has been prepared keeping in mind the need of a first‐level textbook for the undergraduate, graduate and a professional reference for practicing 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. Target Audience This book is primarily intended for undergraduate/postgraduate students. Hence, I have endeavoured to explain 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. New to this Edition It is gratifying to note that this book on Gas Turbines is being well received by the academic community. Based on the suggestions and comments received, all the chapters have been thoroughly revised. A set of multiple‐
choice questions has been introduced in each chapter. New sections and subsections have been added in various chapters. A new chapter on supersonic and transonic compressors and turbines has been included. Further, minor errors brought to my notice have been rectified. Organisation of the Book SI units have been used consistently 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 have been given in various chapters so that the inquisitive students may solve these problems and compare their answers with the answers provided. Quite 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 eight parts. o Introduction and Fundamentals (Chapters 1 to 4) o Cycle Analysis (Chapters 5 to 7) o Compressors (Chapters 8 and 9) o Combustion Systems (Chapter 10) o Turbines (Chapter 11) o Advanced Topics (Chapters 12 to 15) o Environmental Considerations (Chapter 16) o Rocket Propulsion (Chapter 17) By dividing the chapters in the above manner, it may be seen that the work has been organised to form a continuous logical narrative. Web Supplements The web supplements can be accessed at http://www.mhhe.com/ganesan/gt3e and contain PowerPoint lecture slides for Instructors and links to reference material for students. Acknowledgements It would be impossible to refer in detail to all those who have been consulted in the compilation of this work. A special note of appreciation is due to my gas‐turbines course students of the 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 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. In this context, I would also like to mention the names of all the reviewers of the book. Avinash Kumar Agarwal Indian Institute of Technology (IIT) Kanpur Kanpur, Uttar Pradesh V K Bajpai National Institute of Technology (NIT) Kurukshetra, Haryana Souvik Bhattacharyya Indian Institute of Technology (IIT) Kharagpur Kharagpur, West Bengal M Udayakumar National Institute of Technolgy (NIT) Tiruchirapalli, Tamil Nadu L D Garg Punjab Engineering College Chandigarh, Punjab Dipankar Chaterjee Haldia Institute of Technology (HIT) Haldia, West Bengal Ranjan Basak Sikkim Manipal Institute of Technology Sikkim Venkatraj Varadharajulu Bharati Vidyapeeth College of Engineering and Technology Mumbai, Maharashtra Mahesh Rathore SNJB 's College of Engineering Nasik, Maharashtra P Chitambarnathan Dr Sivanthi Adithanar College of Engineering Thiruchendur, Tamil Nadu M Balakrishnan SRM University Chennai, Tamil Nadu B Srinivas Reddy G Pulla Reddy Engineering College Kurnool, Andhra Pradesh A V S Gupta JNTU College of Engineering Hyderabad, Andhra Pradesh 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 my 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 are due to all of them. Feedback Although, maximum care has been taken to minimize the errors, I will be grateful for any constructive criticism for further improvement of the book. I hope and wish the present edition also would be well received. V Ganesan Publisher’s Note Do you have a feature request? A suggestion? We are always open to new ideas (the best ideas come from you!). You may send your comments to [email protected] (kindly mention the title and author name in the subject line). Piracy related issues may also be reported.