Cfd Analysis Of A Shrouded Wind Turbine From High Efficiency And Output Power

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CFD Analysis of the Characteristics of a Shrouded Turbine

Author : Maximilian Ludwig Ganis
Publisher : diplom.de
ISBN 13 : 3832470441
Total Pages : 86 pages
Book Rating : 4.8/5 (324 download)

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Book Synopsis CFD Analysis of the Characteristics of a Shrouded Turbine by : Maximilian Ludwig Ganis

Download or read book CFD Analysis of the Characteristics of a Shrouded Turbine written by Maximilian Ludwig Ganis and published by diplom.de. This book was released on 2003-07-25 with total page 86 pages. Available in PDF, EPUB and Kindle. Book excerpt: Inhaltsangabe:Abstract: Wind energy is an increasingly import source of renewable, clean energy. In spite of this, only the methods and the materials of construction have improved over time, while the basic working principle of the wind turbine is still the same as it was centuries ago. In this thesis we have increased the power of a wind turbine by a factor of 4 in a fluid dynamic simulation, using a very simple external shroud system. We have also extended the theory of wind turbines (limit of Betz), to include this new kind of device and show why past attempts to augment the power of a wind turbine by means of shroud systems have failed. A detailed analysis of the device and its functioning principle is presented in this thesis - optimization studies need to be done in the future. Inhaltsverzeichnis:Table of Contents: AbstractI IndexII List of FiguresIV List of SymbolsVI Introduction1 1.Theory of Wind Turbines5 1.1Introduction5 1.2The Betz Law6 1.3Aerodynamics of the rotor13 1.4Rotor Power Characteristics18 1.5Number of Rotor Blades20 1.6Horizontal Axis Wind Turbines (HAWT)22 1.7Shrouded / Ducted Wind Turbines28 1.7.1Ducted Rotor29 1.7.2Turbine with a Diffuser Duct29 2.Methodology33 2.1Introduction33 2.2Computational Domain34 2.3Computational Code41 2.3.1Conservation Equations42 2.3.2K-Epsilon Turbulence Model43 2.3.3Discretization of the Conservation Equations45 2.4MFR - Multiple Frame of Reference45 2.5Parallel Processing46 2.6Simulations47 3.Results48 3.1Introduction48 3.2Conventional Turbine49 3.2.1Velocity Field49 3.2.2Static Pressure Field52 3.2.3Total Pressure Field53 3.2.4Power of the Conventional Turbine55 3.2.5Energy and Momentum Transfer57 3.3Shrouded Turbine59 3.3.1Velocity Field59 3.3.2Static Pressure Field62 3.3.3Total Pressure Field63 3.3.4Power of the Shrouded Turbine65 3.3.5Energy and Momentum Transfer66 3.3.6The Betz Limit68 3.3.7Cross Check Analysis with Traditional Shrouded Turbines69 Conclusions72 Bibliography73 Acknowledgments

Innovation in Wind Turbine Design

Author : Peter Jamieson
Publisher : John Wiley & Sons
ISBN 13 : 1119137942
Total Pages : 467 pages
Book Rating : 4.1/5 (191 download)

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Book Synopsis Innovation in Wind Turbine Design by : Peter Jamieson

Download or read book Innovation in Wind Turbine Design written by Peter Jamieson and published by John Wiley & Sons. This book was released on 2018-03-12 with total page 467 pages. Available in PDF, EPUB and Kindle. Book excerpt: Aktualisiert und erweiterte Neuauflage dieses umfassenden Leitfadens zu Innovationen in der Entwicklung von Windkraftanlagen Die 2. Auflage von Innovation in Wind Turbine Design beschäftigt sich im Detail mit den Designgrundlagen, erläutert die Entscheidungsgründe für ein bestimmtes Design und beschreibt Methoden zur Bewertung innovativer Systeme und Komponenten. Die 2. Auflage wurde wesentlich erweitert und insgesamt aktualisiert. Neue Inhalte befassen sich mit den theoretischen Grundlagen von Antriebsscheiben in Bezug auf induktionsarme Rotoren. Wesentlich erweitert wurden die Abschnitte zu Offshore-Fragen und Flugwindkraftsystemen. Aktualisierte Inhalte beziehen sich auf Antriebsstränge und die grundlegende Theorie von Planetengetrieben und Differenzialgetrieben. Die Grundlagen der Windenergie und Irrtümer hinsichtlich des Designs von Rotoren mit Luftkanälen, Labor- und Feldtests der Rotorsysteme Katru und Wind Lens werden deutlicher herausgearbeitet. LiDAR wird kurz vorgestellt, ebenso die neuesten Entwicklungen beim Multi-Rotor-Konzept, darunter das Vier-Rotor-System von Vestas. Ein neues Kapitel beschäftigt sich mit dem innovativen DeepWind VAWT. Das Buch ist in vier Hauptabschnitte gegliedert: Hintergrundinformationen zu Designs, Technologiebewertung, Designthemen und innovative Technologiebeispiele. Wichtige Merkmale: - Stark erweiterte und um neue Inhalte ergänzt. - Deckt die Designgrundlagen umfassend ab, erläutert die Entscheidungsgründe für ein bestimmtes Design und beschreibt Methoden zur Bewertung innovativer Systeme und Komponenten. - Enthält innovative Beispiele aus der Praxis. - Jetzt mit Informationen zu den neuesten Entwicklungen in dem Fachgebiet. Dieses Buch ist ein Muss für Windkraftingenieure, Energieingenieure und Turbinenentwickler, Berater, Forscher und Studenten höherer Semester.

Recent Advances in Mathematical and Statistical Methods

Author : D. Marc Kilgour
Publisher : Springer
ISBN 13 : 331999719X
Total Pages : 622 pages
Book Rating : 4.3/5 (199 download)

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Book Synopsis Recent Advances in Mathematical and Statistical Methods by : D. Marc Kilgour

Download or read book Recent Advances in Mathematical and Statistical Methods written by D. Marc Kilgour and published by Springer. This book was released on 2018-11-04 with total page 622 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book focuses on the recent development of methodologies and computation methods in mathematical and statistical modelling, computational science and applied mathematics. It emphasizes the development of theories and applications, and promotes interdisciplinary endeavour among mathematicians, statisticians, scientists, engineers and researchers from other disciplines. The book provides ideas, methods and tools in mathematical and statistical modelling that have been developed for a wide range of research fields, including medical, health sciences, biology, environmental science, engineering, physics and chemistry, finance, economics and social sciences. It presents original results addressing real-world problems. The contributions are products of a highly successful meeting held in August 2017 on the main campus of Wilfrid Laurier University, in Waterloo, Canada, the International Conference on Applied Mathematics, Modeling and Computational Science (AMMCS-2017). They make this book a valuable resource for readers interested not only in a broader overview of the methods, ideas and tools in mathematical and statistical approaches, but also in how they can attain valuable insights into problems arising in other disciplines.

Advances in Applied Mechanical Engineering

Author : Hari Kumar Voruganti
Publisher : Springer Nature
ISBN 13 : 9811512019
Total Pages : 1161 pages
Book Rating : 4.8/5 (115 download)

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Book Synopsis Advances in Applied Mechanical Engineering by : Hari Kumar Voruganti

Download or read book Advances in Applied Mechanical Engineering written by Hari Kumar Voruganti and published by Springer Nature. This book was released on 2020-02-01 with total page 1161 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents select peer reviewed proceedings of the International Conference on Applied Mechanical Engineering Research (ICAMER 2019). The books examines various areas of mechanical engineering namely design, thermal, materials, manufacturing and industrial engineering covering topics like FEA, optimization, vibrations, condition monitoring, tribology, CFD, IC engines, turbo-machines, automobiles, manufacturing processes, machining, CAM, additive manufacturing, modelling and simulation of manufacturing processing, optimization of manufacturing processing, supply chain management, and operations management. In addition, recent studies on composite materials, materials characterization, fracture and fatigue, advanced materials, energy storage, green building, phase change materials and structural change monitoring are also covered. Given the contents, this book will be useful for students, researchers and professionals working in mechanical engineering and allied fields.

Aerodynamics of Wind Turbines, 2nd edition

Author : Martin O. L. Hansen
Publisher : Routledge
ISBN 13 : 1136572260
Total Pages : 192 pages
Book Rating : 4.1/5 (365 download)

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Book Synopsis Aerodynamics of Wind Turbines, 2nd edition by : Martin O. L. Hansen

Download or read book Aerodynamics of Wind Turbines, 2nd edition written by Martin O. L. Hansen and published by Routledge. This book was released on 2013-05-13 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt: Aerodynamics of Wind Turbines is the established essential text for the fundamental solutions to efficient wind turbine design. Now in its second edition, it has been entirely updated and substantially extended to reflect advances in technology, research into rotor aerodynamics and the structural response of the wind turbine structure. Topics covered include increasing mass flow through the turbine, performance at low and high wind speeds, assessment of the extreme conditions under which the turbine will perform and the theory for calculating the lifetime of the turbine. The classical Blade Element Momentum method is also covered, as are eigenmodes and the dynamic behaviour of a turbine. The new material includes a description of the effects of the dynamics and how this can be modelled in an ?aeroelastic code?, which is widely used in the design and verification of modern wind turbines. Further, the description of how to calculate the vibration of the whole construction, as well as the time varying loads, has been substantially updated.

Advances in Wind Power

Author : Rupp Carriveau
Publisher : BoD – Books on Demand
ISBN 13 : 9535108638
Total Pages : 378 pages
Book Rating : 4.5/5 (351 download)

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Book Synopsis Advances in Wind Power by : Rupp Carriveau

Download or read book Advances in Wind Power written by Rupp Carriveau and published by BoD – Books on Demand. This book was released on 2012-11-21 with total page 378 pages. Available in PDF, EPUB and Kindle. Book excerpt: Today's wind energy industry is at a crossroads. Global economic instability has threatened or eliminated many financial incentives that have been important to the development of specific markets. Now more than ever, this essential element of the world energy mosaic will require innovative research and strategic collaborations to bolster the industry as it moves forward. This text details topics fundamental to the efficient operation of modern commercial farms and highlights advanced research that will enable next-generation wind energy technologies. The book is organized into three sections, Inflow and Wake Influences on Turbine Performance, Turbine Structural Response, and Power Conversion, Control and Integration. In addition to fundamental concepts, the reader will be exposed to comprehensive treatments of topics like wake dynamics, analysis of complex turbine blades, and power electronics in small-scale wind turbine systems.

Systematic Architectural Design for Optimal Wind Energy Generation

Author : Abdel Rahman Elbakheit
Publisher : Bentham Science Publishers
ISBN 13 : 1681088517
Total Pages : 125 pages
Book Rating : 4.6/5 (81 download)

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Book Synopsis Systematic Architectural Design for Optimal Wind Energy Generation by : Abdel Rahman Elbakheit

Download or read book Systematic Architectural Design for Optimal Wind Energy Generation written by Abdel Rahman Elbakheit and published by Bentham Science Publishers. This book was released on 2021-06-25 with total page 125 pages. Available in PDF, EPUB and Kindle. Book excerpt: Systematic Architectural Design for Optimal Wind Energy Generation is a handy reference on the aerodynamic architectural forms in buildings for optimizing wind energy conversion processes. Chapters of the book cover the basics of wind energy generation and building design that make them more conducive for generating wind power, and in line with sustainable energy design goals. Key Features: - 7 chapters organized in a simple, reader-friendly layout - A learning approach to the subject that highlights key concepts in architectural science and wind energy physics - Introduces readers to the application of computational Fluid Dynamics (CFD) tools to visualize and simulate architectural forms under wind actions - An objective focus on architectural forms is presented, including the role of the form in optimizing wind energy conversion and the negative effects of wind on certain forms - Covers the building and positioning of different types of wind turbines - References for further reading Systematic Architectural Design for Optimal Wind Energy Generation is an essential reference for students of architecture at all levels, professional architects, as well as readers interested in green building design, renewable energy, and sustainability studies that pave the way towards proactive environment-friendly solutions.

Wind Energy Handbook

Author : Tony Burton
Publisher : John Wiley & Sons
ISBN 13 : 0470699752
Total Pages : 784 pages
Book Rating : 4.4/5 (76 download)

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Book Synopsis Wind Energy Handbook by : Tony Burton

Download or read book Wind Energy Handbook written by Tony Burton and published by John Wiley & Sons. This book was released on 2011-06-13 with total page 784 pages. Available in PDF, EPUB and Kindle. Book excerpt: Named as one of Choice's Outstanding Academic Titles of 2012 Every year, Choice subject editors recognise the most significant print and electronic works reviewed in Choice during the previous calendar year. Appearing annually in Choice's January issue, this prestigious list of publications reflects the best in scholarly titles and attracts extraordinary attention from the academic library community. The authoritative reference on wind energy, now fully revised and updated to include offshore wind power A decade on from its first release, the Wind Energy Handbook, Second Edition, reflects the advances in technology underpinning the continued expansion of the global wind power sector. Harnessing their collective industrial and academic expertise, the authors provide a comprehensive introduction to wind turbine design and wind farm planning for onshore and offshore wind-powered electricity generation. The major change since the first edition is the addition of a new chapter on offshore wind turbines and offshore wind farm development. Opening with a survey of the present state of offshore wind farm development, the chapter goes on to consider resource assessment and array losses. Then wave loading on support structures is examined in depth, including wind and wave load combinations and descriptions of applicable wave theories. After sections covering optimum machine size and offshore turbine reliability, the different types of support structure deployed to date are described in turn, with emphasis on monopiles, including fatigue analysis in the frequency domain. Final sections examine the assessment of environmental impacts and the design of the power collection and transmission cable network. New coverage features: turbulence models updated to reflect the latest design standards, including an introduction to the Mann turbulence model extended treatment of horizontal axis wind turbines aerodynamics, now including a survey of wind turbine aerofoils, dynamic stall and computational fluid dynamics developments in turbine design codes techniques for extrapolating extreme loads from simulation results an introduction to the NREL cost model comparison of options for variable speed operation in-depth treatment of individual blade pitch control grid code requirements and the principles governing the connection of large wind farms to transmission networks four pages of full-colour pictures that illustrate blade manufacture, turbine construction and offshore support structure installation Firmly established as an essential reference, Wind Energy Handbook, Second Edition will prove a real asset to engineers, turbine designers and wind energy consultants both in industry and research. Advanced engineering students and new entrants to the wind energy sector will also find it an invaluable resource.

Design and Modeling of Mechanical Systems - VI

Author : Mnaouar Chouchane
Publisher : Springer Nature
ISBN 13 : 303167152X
Total Pages : 384 pages
Book Rating : 4.0/5 (316 download)

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Book Synopsis Design and Modeling of Mechanical Systems - VI by : Mnaouar Chouchane

Download or read book Design and Modeling of Mechanical Systems - VI written by Mnaouar Chouchane and published by Springer Nature. This book was released on with total page 384 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Optimization and Computational Fluid Dynamics

Author : Dominique Thévenin
Publisher : Springer Science & Business Media
ISBN 13 : 3540721533
Total Pages : 301 pages
Book Rating : 4.5/5 (47 download)

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Book Synopsis Optimization and Computational Fluid Dynamics by : Dominique Thévenin

Download or read book Optimization and Computational Fluid Dynamics written by Dominique Thévenin and published by Springer Science & Business Media. This book was released on 2008-01-08 with total page 301 pages. Available in PDF, EPUB and Kindle. Book excerpt: The numerical optimization of practical applications has been an issue of major importance for the last 10 years. It allows us to explore reliable non-trivial configurations, differing widely from all known solutions. The purpose of this book is to introduce the state-of-the-art concerning this issue and many complementary applications are presented.

Wind Energy Handbook

Author : Tony Burton
Publisher : John Wiley & Sons
ISBN 13 : 9780471489979
Total Pages : 648 pages
Book Rating : 4.4/5 (899 download)

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Book Synopsis Wind Energy Handbook by : Tony Burton

Download or read book Wind Energy Handbook written by Tony Burton and published by John Wiley & Sons. This book was released on 2001-12-12 with total page 648 pages. Available in PDF, EPUB and Kindle. Book excerpt: As environmental concerns have focused attention on the generation of electricity from clean and renewable sources wind energy has become the world's fastest growing energy source. The Wind Energy Handbook draws on the authors' collective industrial and academic experience to highlight the interdisciplinary nature of wind energy research and provide a comprehensive treatment of wind energy for electricity generation. Features include: An authoritative overview of wind turbine technology and wind farm design and development In-depth examination of the aerodynamics and performance of land-based horizontal axis wind turbines A survey of alternative machine architectures and an introduction to the design of the key components Description of the wind resource in terms of wind speed frequency distribution and the structure of turbulence Coverage of site wind speed prediction techniques Discussions of wind farm siting constraints and the assessment of environmental impact The integration of wind farms into the electrical power system, including power quality and system stability Functions of wind turbine controllers and design and analysis techniques With coverage ranging from practical concerns about component design to the economic importance of sustainable power sources, the Wind Energy Handbook will be an asset to engineers, turbine designers, wind energy consultants and graduate engineering students.

Aerodynamic Theory

Author : A. Betz
Publisher : Springer
ISBN 13 : 9783540011996
Total Pages : 434 pages
Book Rating : 4.0/5 (119 download)

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Book Synopsis Aerodynamic Theory by : A. Betz

Download or read book Aerodynamic Theory written by A. Betz and published by Springer. This book was released on 1934-12-31 with total page 434 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Fixed and Flapping Wing Aerodynamics for Micro Air Vehicle Applications

Author : Thomas J. Mueller
Publisher : AIAA
ISBN 13 : 9781600864469
Total Pages : 614 pages
Book Rating : 4.8/5 (644 download)

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Book Synopsis Fixed and Flapping Wing Aerodynamics for Micro Air Vehicle Applications by : Thomas J. Mueller

Download or read book Fixed and Flapping Wing Aerodynamics for Micro Air Vehicle Applications written by Thomas J. Mueller and published by AIAA. This book was released on 2001 with total page 614 pages. Available in PDF, EPUB and Kindle. Book excerpt: This title reports on the latest research in the area of aerodynamic efficency of various fixed-wing, flapping wing, and rotary wing concepts. It presents the progress made by over fifty active researchers in the field.

Radial Flow Turbocompressors

Author : Michael Casey
Publisher : Cambridge University Press
ISBN 13 : 1108416675
Total Pages : 789 pages
Book Rating : 4.1/5 (84 download)

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Book Synopsis Radial Flow Turbocompressors by : Michael Casey

Download or read book Radial Flow Turbocompressors written by Michael Casey and published by Cambridge University Press. This book was released on 2021-06-10 with total page 789 pages. Available in PDF, EPUB and Kindle. Book excerpt: An introduction to the theory and engineering practice that underpins the component design and analysis of radial flow turbocompressors. Drawing upon an extensive theoretical background and years of practical experience, the authors provide descriptions of applications, concepts, component design, analysis tools, performance maps, flow stability, and structural integrity, with illustrative examples. Features wide coverage of all types of radial compressor over many applications unified by the consistent use of dimensional analysis. Discusses the methods needed to analyse the performance, flow, and mechanical integrity that underpin the design of efficient centrifugal compressors with good flow range and stability. Includes explanation of the design of all radial compressor components, including inlet guide vanes, impellers, diffusers, volutes, return channels, de-swirl vanes and side-streams. Suitable as a reference for advanced students of turbomachinery, and a perfect tool for practising mechanical and aerospace engineers already within the field and those just entering it.

Introduction to the Theory of Flow Machines

Author : Albert Betz
Publisher : Elsevier
ISBN 13 : 1483180905
Total Pages : 300 pages
Book Rating : 4.4/5 (831 download)

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Book Synopsis Introduction to the Theory of Flow Machines by : Albert Betz

Download or read book Introduction to the Theory of Flow Machines written by Albert Betz and published by Elsevier. This book was released on 2014-05-16 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt: Introduction to the Theory of Flow Machines details the fundamental processes and the relations that have a significant influence in the operating mechanism of flow machines. The book first covers the general consideration in flow machines, such as pressure, stress, and cavitation. In the second chapter, the text deals with ducts; this chapter discusses the general remarks, types of flow, and mixing process. Next, the book tackles the types of cascades, along with its concerns. The closing chapter covers the flow machine and its components, such as turbine, wheels, engines, and propellers. The text will be of great use to mechanical engineers and technicians.

Handbook of Sustainable Engineering

Author : Joanne Kauffman
Publisher : Springer
ISBN 13 : 9781402089381
Total Pages : 0 pages
Book Rating : 4.0/5 (893 download)

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Book Synopsis Handbook of Sustainable Engineering by : Joanne Kauffman

Download or read book Handbook of Sustainable Engineering written by Joanne Kauffman and published by Springer. This book was released on 2013-04-30 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The efficient utilization of energy, sustainable use of natural resources, and large-scale adoption of sustainable technologies is the key to a sustainable future. The Handbook of Sustainable Engineering provides tools that will help us achieve these goals". Nobel Prize Winner Dr. R.K. Pachauri, Chairman, UN Intergovernmental Panel on Climate Change As global society confronts the challenges of diminishing resources, ecological degradation, and climate change, engineers play a crucial role designing and building technologies and products that fulfil our needs for utility and sustainability. The Handbook of Sustainable Engineering equips readers with the context and the best practices derived from both academic research and practical examples of successful implementations of sustainable technical solutions. The handbook’s content revolves around the two themes, new ways of thinking and new business models, including sustainable production, products, service systems and consumption while addressing key assets based on new materials, optimized resource management, and new energy sources. Contributions reflect a focus on state-of-the art insights into employing smart materials, recycling e-waste, water utilization, solar cells, product lifecycles, transportation and reverse manufacturing. Supportive of this, underlying issues such as engineering education, consumer behaviour and the regulatory climate complete the handbook’s comprehensive treatment of the problems and most promising solutions.

Gas Turbine Engineering Handbook

Author : Meherwan P. Boyce
Publisher : Elsevier
ISBN 13 : 0080456898
Total Pages : 956 pages
Book Rating : 4.0/5 (84 download)

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Book Synopsis Gas Turbine Engineering Handbook by : Meherwan P. Boyce

Download or read book Gas Turbine Engineering Handbook written by Meherwan P. Boyce and published by Elsevier. This book was released on 2017-09-01 with total page 956 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Gas Turbine Engineering Handbook has been the standard for engineers involved in the design, selection, and operation of gas turbines. This revision includes new case histories, the latest techniques, and new designs to comply with recently passed legislation. By keeping the book up to date with new, emerging topics, Boyce ensures that this book will remain the standard and most widely used book in this field. The new Third Edition of the Gas Turbine Engineering Hand Book updates the book to cover the new generation of Advanced gas Turbines. It examines the benefit and some of the major problems that have been encountered by these new turbines. The book keeps abreast of the environmental changes and the industries answer to these new regulations. A new chapter on case histories has been added to enable the engineer in the field to keep abreast of problems that are being encountered and the solutions that have resulted in solving them. - Comprehensive treatment of Gas Turbines from Design to Operation and Maintenance. In depth treatment of Compressors with emphasis on surge, rotating stall, and choke; Combustors with emphasis on Dry Low NOx Combustors; and Turbines with emphasis on Metallurgy and new cooling schemes. An excellent introductory book for the student and field engineers - A special maintenance section dealing with the advanced gas turbines, and special diagnostic charts have been provided that will enable the reader to troubleshoot problems he encounters in the field - The third edition consists of many Case Histories of Gas Turbine problems. This should enable the field engineer to avoid some of these same generic problems