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Effects Of Impeller Diffuser Interaction On Centrifugal Compressor Performance
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Author :National Aeronautics and Space Administration (NASA) Publisher :Createspace Independent Publishing Platform ISBN 13 :9781720484141 Total Pages :68 pages Book Rating :4.4/5 (841 download)
Book Synopsis Effects of Impeller-Diffuser Interaction on Centrifugal Compressor Performance by : National Aeronautics and Space Administration (NASA)
Download or read book Effects of Impeller-Diffuser Interaction on Centrifugal Compressor Performance written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-05-30 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt: This research program focuses on characterizing the effect of impeller-diffuser interactions in a centrifugal compressor stage on its performance using unsteady threedimensional Reynolds-averaged Navier-Stokes simulations. The computed results show that the interaction between the downstream diffuser pressure field and the impeller tip clearance flow can account for performance changes in the impeller. The magnitude of performance change due to this interaction was examined for an impeller with varying tip clearance followed by a vaned or vaneless diffuser. The impact of unsteady impeller-diffuser interaction, primarily through the impeller tip clearance flow, is reflected through a time-averaged change in impeller loss, blockage and slip. The results show that there exists a tip clearance where the beneficial effect of the impeller-diffuser interaction on the impeller performance is at a maximum. A flow feature that consists of tip flow back leakage was shown to occur at design speed for the centrifugal compressor stage. This flow phenomenon is described as tip flow that originates in one passage, flows downstream of the impeller trailing edge and then returns to upstream of the impeller trailing edge of a neighboring passage. Such a flow feature is a source of loss in the impeller. A hypothesis is put forth to show that changing the diffuser vane count and changing impeller-diffuser gap has an analogous effect on the impeller performance. The centrifugal compressor stage was analyzed using diffusers of different vane counts, producing an impeller performance trend similar to that when the impeller-diffuser gap was varied, thus supporting the hypothesis made. This has the implication that the effect impeller performance associated with changing the impeller-diffuser gap and changing diffuser vane count can be described by the non-dimensional ratio of impeller-diffuser gap to diffuser vane pitch. A procedure is proposed and developed for isolating impeller passage b
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.
Book Synopsis Fluid Mechanics and Fluid Power – Contemporary Research by : Arun K. Saha
Download or read book Fluid Mechanics and Fluid Power – Contemporary Research written by Arun K. Saha and published by Springer. This book was released on 2016-09-20 with total page 1701 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume comprises the proceedings of the 42nd National and 5th International Conference on Fluid Mechanics and Fluid Power held at IIT Kanpur in December, 2014.The conference proceedings encapsulate the best deliberations held during the conference. The diversity of participation in the conference, from academia, industry and research laboratories reflects in the articles appearing in the volume. This contributed volume has articles from authors who have participated in the conference on thematic areas such as Fundamental Issues and Perspectives in Fluid Mechanics; Measurement Techniques and Instrumentation; Computational Fluid Dynamics; Instability, Transition and Turbulence; Turbomachinery; Multiphase Flows; Fluid‐Structure Interaction and Flow‐Induced Noise; Microfluidics; Bio‐inspired Fluid Mechanics; Internal Combustion Engines and Gas Turbines; and Specialized Topics. The contents of this volume will prove useful to researchers from industry and academia alike.
Book Synopsis The Centrifugal Compressor Stage by : Thomas Barker Ferguson
Download or read book The Centrifugal Compressor Stage written by Thomas Barker Ferguson and published by . This book was released on 1963 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Laser Anemometer Measurements of the Flow Field in a 4:1 Pressure Ratio Centrifugal Impeller by : G. J. Skoch
Download or read book Laser Anemometer Measurements of the Flow Field in a 4:1 Pressure Ratio Centrifugal Impeller written by G. J. Skoch and published by . This book was released on 1997 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt: Presented at the International Gas Turbine & Aeroengine Congress & Exhibition, Orlando, FL, Jun 2 - Jun 5, 1997.
Book Synopsis Design and Analysis of Centrifugal Compressors by : Rene Van den Braembussche
Download or read book Design and Analysis of Centrifugal Compressors written by Rene Van den Braembussche and published by John Wiley & Sons. This book was released on 2019-01-14 with total page 606 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive overview of fluid dynamic models and experimental results that can help solve problems in centrifugal compressors and modern techniques for a more efficient aerodynamic design. Design and Analysis of Centrifugal Compressors isacomprehensive overview of the theoretical fluid dynamic models describing the flow in centrifugal compressors and the modern techniques for the design of more efficient centrifugal compressors. The author — a noted expert in the field, with over 40 years of experience — evaluates relevant numerical and analytical prediction models for centrifugal compressors with special attention to their accuracy and limitations. Relevant knowledge from the last century is linked with new insights obtained from modern CFD. Emphasis is to link the flow structure, performance and stability to the geometry of the different compressor components. Design and Analysis of Centrifugal Compressors is an accessible resource that combines theory with experimental data and previous research with recent developments in computational design and optimization. This important resource Covers the basic information concerning fluid dynamics that are specific for centrifugal compressors and clarifies the differences with axial compressors Provides an overview of performance prediction models previously developed in combination with extra results from research conducted by the author Describes helpful numerical and analytical models for the flow in the different components in relation to flow stability, operating range and performance Includes the fundamental information for the aerodynamic design of more efficient centrifugal compressors Explains the use of computational fluid dynamics (CFD) for the design and analysis of centrifugal compressors Written for engineers, researchers and designers in industry as well as for academics specializing in the field, Design and Analysis of Centrifugal Compressors offers an up to date overview of the information needed for the design of more effective centrifugal compressors.
Book Synopsis The Effect of Exit-vaned Diffusers on Centrifugal-compressor Performance by : Frank Florian Szczesny
Download or read book The Effect of Exit-vaned Diffusers on Centrifugal-compressor Performance written by Frank Florian Szczesny and published by . This book was released on 1962 with total page 226 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Performance Characteristics of Plane-wall Two-dimensional Diffusers by : Elliott G. Reid
Download or read book Performance Characteristics of Plane-wall Two-dimensional Diffusers written by Elliott G. Reid and published by . This book was released on 1953 with total page 90 pages. Available in PDF, EPUB and Kindle. Book excerpt: Experiments have been made at Stanford University to determine the performance characteristics of plane-wall, two-dimensional diffusers which were so proportioned as to insure reasonable approximation of two-dimensional flow.
Book Synopsis Advances in Engineering Design and Simulation by : Chenfeng Li
Download or read book Advances in Engineering Design and Simulation written by Chenfeng Li and published by Springer Nature. This book was released on 2019-10-03 with total page 345 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book consists of selected peer-reviewed papers presented at the NAFEMS India Regional Conference (NIRC 2018). It covers current topics related to advances in computer aided design and manufacturing. The book focuses on the latest developments in engineering modelling and simulation, and its application to various complex engineering systems. Finite element method/finite element analysis, computational fluid dynamics, and additive manufacturing are some of the key topics covered in this book. The book aims to provide a better understanding of contemporary product design and analyses, and hence will be useful for researchers, academicians, and professionals.
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 790 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.
Book Synopsis Exergy for A Better Environment and Improved Sustainability 1 by : Fethi Aloui
Download or read book Exergy for A Better Environment and Improved Sustainability 1 written by Fethi Aloui and published by Springer. This book was released on 2018-08-04 with total page 1469 pages. Available in PDF, EPUB and Kindle. Book excerpt: This multi-disciplinary book presents the most recent advances in exergy, energy, and environmental issues. Volume 1 focuses on fundamentals in the field and covers current problems, future needs, and prospects in the area of energy and environment from researchers worldwide. Based on selected lectures from the Seventh International Exergy, Energy and Environmental Symposium (IEEES7-2015) and complemented by further invited contributions, this comprehensive set of contributions promote the exchange of new ideas and techniques in energy conversion and conservation in order to exchange best practices in "energetic efficiency". Included are fundamental and historical coverage of the green transportation and sustainable mobility sectors, especially regarding the development of sustainable technologies for thermal comforts and green transportation vehicles. Furthermore, contributions on renewable and sustainable energy sources, strategies for energy production, and the carbon-free society constitute an important part of this book. Exergy for Better Environment and Sustainability, Volume 1 will appeal to researchers, students, and professionals within engineering and the renewable energy fields.
Book Synopsis Centrifugal Compressor Design and Performance by : David Japikse
Download or read book Centrifugal Compressor Design and Performance written by David Japikse and published by Concepts Eti. This book was released on 1996-01-01 with total page 474 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Centrifugal Compressors by : SAE Powerplant Activity Committee
Download or read book Centrifugal Compressors written by SAE Powerplant Activity Committee and published by . This book was released on 1961 with total page 90 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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 2011-11-23 with total page 1000 pages. Available in PDF, EPUB and Kindle. Book excerpt: Written by one of the field’s most well known experts, the Gas Turbine Engineering Handbook has long been the standard for engineers involved in the design, selection, maintenance and operation of gas turbines. With far reaching, comprehensive coverage across a range of topics from design specifications to maintenance troubleshooting, this one-stop resource provides newcomers to the industry with all the essentials to learn and fill knowledge gaps, and established practicing gas turbine engineers with a reliable go-to reference. This new edition brings the Gas Turbine Engineering Handbook right up to date with new legislation and emerging topics to help the next generation of gas turbine professionals understand the underlying principles of gas turbine operation, the economic considerations and implications of operating these machines, and how they fit in with alternative methods of power generation. The most comprehensive one-stop source of information on industrial gas turbines, with vital background, maintenance information, legislative details and calculations combined in an essential all-in-one reference Written by an industry-leading consultant and trainer and suitable for use as a training companion or a reliable dip-in guide Includes hard-won information from industry experts in the form of case histories that offer practical trouble-shooting guidance and solutions
Book Synopsis Effect of Reynolds Number on Overall Performance of a 6-inch Radial Bladed Centrifugal Compressor by : Laurence J. Heidelberg
Download or read book Effect of Reynolds Number on Overall Performance of a 6-inch Radial Bladed Centrifugal Compressor written by Laurence J. Heidelberg and published by . This book was released on 1970 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Design and Development of Advanced Vaned Diffusers for Centrifugal Compressors by : Naresh Kumar Amineni
Download or read book Design and Development of Advanced Vaned Diffusers for Centrifugal Compressors written by Naresh Kumar Amineni and published by . This book was released on 1996 with total page 362 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Predicting Flow-Induced Acoustics at Near-Stall Conditions in an Automotive Turbocharger Compressor by : Roberto Navarro García
Download or read book Predicting Flow-Induced Acoustics at Near-Stall Conditions in an Automotive Turbocharger Compressor written by Roberto Navarro García and published by Springer. This book was released on 2018-01-10 with total page 149 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis offers new insights into the fluid flow behavior of automotive centrifugal compressors operating under near-stall conditions. Firstly it discusses the validation of three-dimensional computational fluid dynamics (CFD) unsteady simulations against acoustic experimental measurements using an original procedure based on plane wave pressure decomposition. It then examines the configuration of the CFD cases, highlighting the key parameters needed for a successful calculation. Moreover, it describes both the compressor mean and unsteady flow field from best-efficiency to near-surge operating points. Lastly, it provides readers with explanations of the various phenomena that arise when the mass flow rate is reduced and the compressor is driven to poor and noisy performance. Written for students, researchers and professionals who want to improve their understanding of the complex fluid flow behavior in centrifugal compressors, the thesis offers valuable practical insights into reducing the acoustic emissions of turbochargers.
