Gas Turbines edited by Injeti Gurrappa SC I YO Gas Turbines Edited by Injeti Gurrappa Published by Sciyo Janeza Trdine 9, 51000 Rijeka, Croatia Copyright © 2010 Sciyo All chapters are Open Access articles distributed under the Creative Commons Non Commercial Share Alike Attribution 3.0 license, which permits to copy, distribute, transmit, and adapt the work in any medium, so long as the original work is properly cited. After this work has been published by Sciyo, authors have the right to republish it, in whole or part, in any publication of which they are the author, and to make other personal use of the work. Any republication, referencing or personal use of the work must explicitly identify the original source. Statements and opinions expressed in the chapters are these of the individual contributors and not necessarily those of the editors or publisher. No responsibility is accepted for the accuracy of information contained in the published articles. The publisher assumes no responsibility for any damage or injury to persons or property arising out of the use of any materials, instructions, methods or ideas contained in the book. Publishing Process Manager Jelena Marusic Technical Editor Teodora Smiljanic Cover Designer Martina Sirotic Image Copyright Laurin Rinder 2010. Used under license from Shutterstock.com First published October 2010 Printed in India A free online edition of this book is available at www.sciyo.com Additional hard copies can be obtained from publication@sciyo.com Gas Turbines, Edited by Injeti Gurrappa p. cm. ISBN 978-953-307-146-6 SC I YO.CO M WHERE KNOWLEDGE IS FREE free online editions of Sciyo Books, Journals and Videos can be found at www.sciyo.com [...]... both stationary and aircraft medium-to-high size gas turbines, axial-flow compressor design is always part of a more general framework involving the engine as a complex system In this perspective, compressors are seen mainly as one of the engine components, specifically those carrying out the compression phase; however, due to the peculiar way in 2 Gas Turbines which energy transfer occurs and the flow... 1 Advances in Aerodynamic Design of Gas Turbines Compressors Ernesto Benini University of Padova Italy 1 Introduction Aerodynamic design techniques of gas turbine compressors have dramatically changed in the last years While traditional 1D and 2D design procedures are consolidated for preliminary... crucial component to be designed, at least from the aerodynamic point of view In many gas turbine designers’ opinion in fact, compressors are often regarded as “delicate” turbomachines, whose design heavily affects the overall engine performance, both in design and, above all, in off-design operations In stationary gas turbines, most of the interest is concentrated on the compressor design around the... is supposed to work far away from the sea level or under extreme temperature conditions In principle, compressors adopted in aircraft gas turbine engines, often referred to as aeroengines, require completely different design criteria (even though some stationary gas turbines are often derived and adapted from aeroengines to fulfil heavy-duty operation) In fact, aeroengines are designed mainly to fulfil... and xi,min< xi . of gas turbines. The book comprises articles that bring out contemporary developments in gas turbines and thematically classifi ed into the following categories: 1. ADVANCES IN DESIGNING GAS. Development of Smartcoatings for Gas Turbines 65 I.Gurrappa and I.V.S. Yashwanth Development of Granular Catalysts and Natural Gas Combustion Technology for Small Gas Turbine Power Plants 79 Zinfer. Favorski Electricity Cogeneration using an Open Gas Turbine 109 Anita Kovac Kralj Gas Turbine Condition Monitoring and Diagnostics 119 Igor Loboda Micro Gas Turbines 145 Flavio Caresana, Gabriele Comodi,