Theory and Practice in Gas Turbines

Subject developed to meet requirements of students and professionals dealing with turbo-machines
Both aircraft and industrial gas turbines covered
Discussion focussed on physical principles from introductory nature
Symbols and variables used are adequately defined
Example problems, to calculate flow characteristics and related design parameters, solved using basic to medium calculus
Solved problems and exercises included to stimulate analytical thinking

Among various mechanical devices built to produce power for industrial and societal needs, gas turbines offer a number of significant advantages. The sliding components in reciprocating engines cause considerable vibrations. Hydroelectric power from turbines using water is a great resource, but potential sites are limited. Steam power plants require expensive steam generating equipment of large bulk, and installation may stretch over lengthy time periods. In contrast, gas turbines operate smoothly with low vibrations, are compact in size, can be started rapidly from rest and may be installed fairly quickly.

Gas turbines offer even greater benefits in the aviation arena. Turbojet and multi-rotor turbofan engines have no competition for powering larger aircrafts at faster speeds. Applications in other fields abound. An outstanding example is the aero-derivative gas turbines on offshore oil platforms, where their lighter weight, smaller footprint and ability to burn many different types of fuel make it a clear choice.

This book is written to meet the needs of students in engineering colleges and practising engineers. The material has been specifically tailored for college undergraduate and graduate level design engineering of rotating machine courses. In keeping with its mostly introductory nature, the primary focus is on thermodynamic cycle design and practical mechanical design features. Where possible, electronic spreadsheet type of calculations is used in example problems to calculate flow characteristics and related cycle design parameters. The book focuses on:

Fuel consumption, power output and exhaust gas emissions
State-of-the-art in the thermal and fluid flow technologies for design of single and multi-rotor gas turbines
Methods to enhance performance through creative component designs
Analysis of complex problems ranging from compressor stall to optimizing operation from partial to full load

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A S Rangwala received his Master of Science degree in Mechanical Engineering from Drexel University, Philadelphia, and also in Industrial Engineering from University of Cincinnati. He has worked for thirty-five years in the field of Structural Dynamics on Compressors and Gas Turbines as applicable to aircraft engines, and steam turbines and generators for power plant applications. Mr Rangwala has written several books, papers and reports on all facets of machinery system and component dynamics. He has worked at General Electric Company's Aircraft Engines Group in Cincinnati, OH and Lynn, Massachusetts and at Large Steam Turbines Department, Schenectady, NY. He has also worked at Siemens-Westinghouse Power Corporation in Orlando. He now works as an International Consultant and teaches short course for practising engineers on structural vibrations of rotating and reciprocating machinery. He has also been an adjunct professor at Cincinnati State Technical College, USA.