Cfd Analysis Of The Characteristics Of A Shrouded Turbine

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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

CFD Study of Gas Turbine Un-shrouded Rotor Blade Tip Gaps

Author : Terry James
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (11 download)

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Book Synopsis CFD Study of Gas Turbine Un-shrouded Rotor Blade Tip Gaps by : Terry James

Download or read book CFD Study of Gas Turbine Un-shrouded Rotor Blade Tip Gaps written by Terry James and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

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.

A CFD Analysis of Turbine Blade Cooling Using Isotropic and Anisotropic Turbulence Models

Author : Thomas P. Abraham
Publisher :
ISBN 13 :
Total Pages : 159 pages
Book Rating : 4.:/5 (115 download)

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Book Synopsis A CFD Analysis of Turbine Blade Cooling Using Isotropic and Anisotropic Turbulence Models by : Thomas P. Abraham

Download or read book A CFD Analysis of Turbine Blade Cooling Using Isotropic and Anisotropic Turbulence Models written by Thomas P. Abraham and published by . This book was released on 2003 with total page 159 pages. Available in PDF, EPUB and Kindle. Book excerpt:

The Jet Engine

Author : Rolls Royce
Publisher : John Wiley & Sons
ISBN 13 : 1119065992
Total Pages : 291 pages
Book Rating : 4.1/5 (19 download)

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Book Synopsis The Jet Engine by : Rolls Royce

Download or read book The Jet Engine written by Rolls Royce and published by John Wiley & Sons. This book was released on 2015-07-20 with total page 291 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Jet Engine provides a complete, accessible description of the working and underlying principles of the gas turbine. Accessible, non-technical approach explaining the workings of jet engines, for readers of all levels Full colour diagrams, cutaways and photographs throughout Written by RR specialists in all the respective fields Hugely popular and well-reviewed book, originally published in 2005 under Rolls Royce’s own imprint

Challenges of Power Engineering and Environment

Author : Ke-fa Cen
Publisher : Springer Science & Business Media
ISBN 13 : 3540766944
Total Pages : 1432 pages
Book Rating : 4.5/5 (47 download)

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Book Synopsis Challenges of Power Engineering and Environment by : Ke-fa Cen

Download or read book Challenges of Power Engineering and Environment written by Ke-fa Cen and published by Springer Science & Business Media. This book was released on 2009-03-27 with total page 1432 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is the proceedings of the International Conference on Power Engineering-2007. The fields of this book include power engineering and relevant environmental issues. The recent technological advances in power engineering and related areas are introduced. This book is valuable for researchers, engineers and students majoring in power engineering.

CFD for Wind and Tidal Offshore Turbines

Author : Esteban Ferrer
Publisher : Springer
ISBN 13 : 3319162020
Total Pages : 134 pages
Book Rating : 4.3/5 (191 download)

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Book Synopsis CFD for Wind and Tidal Offshore Turbines by : Esteban Ferrer

Download or read book CFD for Wind and Tidal Offshore Turbines written by Esteban Ferrer and published by Springer. This book was released on 2015-06-09 with total page 134 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book encompasses novel CFD techniques to compute offshore wind and tidal applications. Computational fluid dynamics (CFD) techniques are regarded as the main design tool to explore the new engineering challenges presented by offshore wind and tidal turbines for energy generation. The difficulty and costs of undertaking experimental tests in offshore environments have increased the interest in the field of CFD which is used to design appropriate turbines and blades, understand fluid flow physical phenomena associated with offshore environments, predict power production or characterise offshore environments, amongst other topics.

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.

Recent Advances in CFD for Wind and Tidal Offshore Turbines

Author : Esteban Ferrer
Publisher : Springer
ISBN 13 : 3030118878
Total Pages : 148 pages
Book Rating : 4.0/5 (31 download)

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Book Synopsis Recent Advances in CFD for Wind and Tidal Offshore Turbines by : Esteban Ferrer

Download or read book Recent Advances in CFD for Wind and Tidal Offshore Turbines written by Esteban Ferrer and published by Springer. This book was released on 2019-02-06 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book presents novel Computational Fluid Dynamics (CFD) techniques to compute offshore wind and tidal applications. The papers in this volume are based on a mini-symposium held at ECCOMAS 2018. Computational fluid dynamics (CFD) techniques are regarded as the main design tool to explore the new engineering challenges presented by offshore wind and tidal turbines for energy generation. The difficulty and costs of undertaking experimental tests in offshore environments have increased the interest in CFD which is used to design appropriate turbines and blades, understand fluid flow physical phenomena associated with offshore environments, predict power production or characterise offshore environments amongst other topics.

Scientific and Technical Aerospace Reports

Author :
Publisher :
ISBN 13 :
Total Pages : 488 pages
Book Rating : 4.:/5 (3 download)

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Book Synopsis Scientific and Technical Aerospace Reports by :

Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 488 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.

Toward CFD-based Correlations for a Single-stage High-pressure Transonic Turbine

Author : Iyad Akel
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (11 download)

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Book Synopsis Toward CFD-based Correlations for a Single-stage High-pressure Transonic Turbine by : Iyad Akel

Download or read book Toward CFD-based Correlations for a Single-stage High-pressure Transonic Turbine written by Iyad Akel and published by . This book was released on 1999 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Correlations are of great importance in the preliminary design of a gas turbine engine. They are useful to determine the efficiency and thus the Specific Fuel Consumption (SFC of the engine, before even having blade geometries. Also, correlations play a very. important role in the understanding of the behavior (performance) of the engine, under different operating conditions. Since most correlations are obtained from expensive rig tests and cascades, and since cascades do not represent all the flow phenomena in actual engines, the necessity of finding less expensive and more realistic representations of the actual flow phenomena is becoming more and more important. With the great advances in Computational Fluid Dynamics (CFD), CFD is becoming the tool of choice in the analysis of complex flow phenomena, such as that in gas turbine engines. In a novel cost-effective approach, it is proposed to use CFD as the experimental test-cell to generate these correlations and to extend their regime of applicability. Using a 3-D finite element viscous, compressible, turbulent code, developed jointly by Concordia University CFD laboratory and Pratt & Whitney Canada, CFD-based correlations for a high-pressure transonic turbine will be created and validated against Cold Flow Turbine Rig test data. This will be done by studying the effect of variation of four design and off-design parameters, on the performance characteristics of the turbine stage.

Annual Report of the Faculty of Engineering, Kyushu University

Author : Kyūshū Daigaku. Kōgaku Kenkyūin
Publisher :
ISBN 13 :
Total Pages : 512 pages
Book Rating : 4.3/5 (243 download)

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Book Synopsis Annual Report of the Faculty of Engineering, Kyushu University by : Kyūshū Daigaku. Kōgaku Kenkyūin

Download or read book Annual Report of the Faculty of Engineering, Kyushu University written by Kyūshū Daigaku. Kōgaku Kenkyūin and published by . This book was released on 2002 with total page 512 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Wind Energy Harvesting

Author : Ravi Kishore
Publisher : Walter de Gruyter GmbH & Co KG
ISBN 13 : 161451979X
Total Pages : 200 pages
Book Rating : 4.6/5 (145 download)

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Book Synopsis Wind Energy Harvesting by : Ravi Kishore

Download or read book Wind Energy Harvesting written by Ravi Kishore and published by Walter de Gruyter GmbH & Co KG. This book was released on 2018-04-23 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides the fundamental concepts required for the development of an efficient small-scale wind turbine. For centuries, engineers and scientists have used wind turbines of all shapes and sizes to harvest wind energy. Large-scale wind turbines have been successful at producing great amounts of power when deployed in sites with vast, open space, such as in fi elds or in offshore waters. For environments with limited space, such as dense urban environments, small-scale wind turbines are an attractive alternative for taking advantage of the ubiquity of wind. However, many of today’s tools for aerodynamic design and analysis were originally developed for large-scale turbines and do not scale down to these smaller devices. Arranged in a systematic and comprehensive manner, complete with supporting examples, Wind Energy Harvesting: Micro- To Small-Scale Turbines is a useful reference for undergraduate and graduate level classes on energy harvesting, sustainable energy, and fl uid dynamics, and an introduction to the field for non-technical readers.

Axial Turbine Aerodynamics for Aero-engines

Author : Zhengping Zou
Publisher : Springer
ISBN 13 : 9811057508
Total Pages : 572 pages
Book Rating : 4.8/5 (11 download)

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Book Synopsis Axial Turbine Aerodynamics for Aero-engines by : Zhengping Zou

Download or read book Axial Turbine Aerodynamics for Aero-engines written by Zhengping Zou and published by Springer. This book was released on 2018-01-11 with total page 572 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a monograph on aerodynamics of aero-engine gas turbines focusing on the new progresses on flow mechanism and design methods in the recent 20 years. Starting with basic principles in aerodynamics and thermodynamics, this book systematically expounds the recent research on mechanisms of flows in axial gas turbines, including high pressure and low pressure turbines, inter-turbine ducts and turbine rear frame ducts, and introduces the classical and innovative numerical evaluation methods in different dimensions. This book also summarizes the latest research achievements in the field of gas turbine aerodynamic design and flow control, and the multidisciplinary conjugate problems involved with gas turbines. This book should be helpful for scientific and technical staffs, college teachers, graduate students, and senior college students, who are involved in research and design of gas turbines.

Cfd Analysis of Composite Ocean Current Turbine Blade

Author : Rahman Noor
Publisher : LAP Lambert Academic Publishing
ISBN 13 : 9783659639388
Total Pages : 100 pages
Book Rating : 4.6/5 (393 download)

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Book Synopsis Cfd Analysis of Composite Ocean Current Turbine Blade by : Rahman Noor

Download or read book Cfd Analysis of Composite Ocean Current Turbine Blade written by Rahman Noor and published by LAP Lambert Academic Publishing. This book was released on 2014-12-09 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt: The ocean is spread over 70% of the earth surface. It hides a huge potential energy in the different form. The world needs more and more energy with the passage of time. This ocean energy will provide enough energy to the earth's inhabitant in the future. However the technology development in this regard is much behind. One of the effort is to discuss in this book about the extraction of the ocean energy for the betterment of humanity. The author Engineer Noor Rahman discuss all the phases of his project in this book.

Augmenting Urban Wind Energy

Author : Aierken Dilimulati
Publisher :
ISBN 13 :
Total Pages : 100 pages
Book Rating : 4.:/5 (113 download)

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Book Synopsis Augmenting Urban Wind Energy by : Aierken Dilimulati

Download or read book Augmenting Urban Wind Energy written by Aierken Dilimulati and published by . This book was released on 2018 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt: The increased demand for renewable energy and the development of energy independent building designs have motivated significant research into the improvement of wind power technologies that target urban environments. However, the implementation of wind turbines in urban environments still faces many challenges. The complexity of wind profile and high turbulence due to the topographical characteristics of urban environments severely limit the performance of urban wind turbines. To explore possible solutions to such challenges and better understand them, the current state of urban wind energy is thoroughly reviewed and the urban flow characteristics are investigated using computational fluid dynamics (CFD). Promising directions that can improve urban wind turbine performance are identified. A flanged shrouded diffuser mechanism - a fluid machine, mounted on rooftop of buildings used as a casing for small wind turbines can significantly improve turbine performance. The fluid machine can increase the wind energy potential by up to a factor of four, by guiding and accelerating the airflow over the building roofs utilizing its geometric features such as, cycloidal curve surface at the inlet and a vortex generating flange at the outlet. The performance of the fluid machine is tested using CFD and wind tunnel tests are also performed. To provide further evidence for its performance, the diffuser mechanism is modeled on the rooftop of an existing building in a test site in Montreal, Canada using CFD and the topographical map including the geometrical data of the buildings in the test site. The CFD analysis performed on the diffuser mechanism in the test site used real statistical wind data of the city of Montreal. CFD investigation of the test site found close agreement with the initially predicted performance of the mechanism. As a power-augmenting device, the fluid machine can mitigate the challenges faced by the urban wind energy systems and it opens new ways to improving energy efficiency of urban wind turbines.

Advances in Steam Turbines for Modern Power Plants

Author : Tadashi Tanuma
Publisher : Woodhead Publishing
ISBN 13 : 0323915515
Total Pages : 681 pages
Book Rating : 4.3/5 (239 download)

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Book Synopsis Advances in Steam Turbines for Modern Power Plants by : Tadashi Tanuma

Download or read book Advances in Steam Turbines for Modern Power Plants written by Tadashi Tanuma and published by Woodhead Publishing. This book was released on 2022-07-15 with total page 681 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advances in Steam Turbines for Modern Power Plants, second edition, provides a fully revised and updated comprehensive review of steam turbine design, optimization, analysis and measurement. Editor Tadashi Tanuma and his team of expert contributors from around the globe have updated each chapter to reflect the latest research and experiences in the field, to help progress thermal power generation to meet sustainability goals. This book presents modern technologies for the design and development of steam turbines that supply affordable, reliable and stable power with much lower CO2 emissions. With the addition of two new chapters on ‘Steam turbine mechanical design and analysis for high temperature, large and rapid change of temperature conditions’ and ‘Steam valves with low pressure losses’ this edition will support students, researchers and professional engineers in designing and developing their own economical and environmentally concerned thermal power plants. Fully updated to include the latest research and examples from around the globe Includes brand new chapters, case studies, photographs, data, analysis and models Chapters on the design and development of Steam Turbines are written by experienced design engineers who provide first-hand experience and lessons learned.