Numerical Investigation of Advanced Design Concepts for High-pressure Ratio Centrifugal Compressors in Turbocharging Applications

Numerical Investigation of Advanced Design Concepts for High-pressure Ratio Centrifugal Compressors in Turbocharging Applications PDF Author: Rodrigo Rodriguez Erdmenger
Publisher:
ISBN: 9783843940313
Category :
Languages : en
Pages :

Book Description


Radial Flow Turbocompressors

Radial Flow Turbocompressors PDF Author: Michael Casey
Publisher: Cambridge University Press
ISBN: 1108416675
Category : Science
Languages : en
Pages : 789

Book Description
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.

Design and Analysis of Centrifugal Compressors

Design and Analysis of Centrifugal Compressors PDF Author: Rene Van den Braembussche
Publisher: John Wiley & Sons
ISBN: 1119424100
Category : Technology & Engineering
Languages : en
Pages : 606

Book Description
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.

The Current State of Research and Design in High Pressure Ratio Centrifugal Compressors

The Current State of Research and Design in High Pressure Ratio Centrifugal Compressors PDF Author: P. M. Came
Publisher:
ISBN: 9780114709990
Category :
Languages : en
Pages : 74

Book Description
A review of the achievements of research effort in centrifugal compressors is presented and its effect on current design methods is discussed. The paper concludes with recommendations for future research. (Author).

Design of Radial Turbomachines

Design of Radial Turbomachines PDF Author: A. Whitfield
Publisher: Longman Scientific and Technical
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 424

Book Description


10th International Conference on Turbochargers and Turbocharging

10th International Conference on Turbochargers and Turbocharging PDF Author: Institution of Mechanical Engineers
Publisher: Elsevier
ISBN: 0857096133
Category : Technology & Engineering
Languages : en
Pages : 456

Book Description
This book presents the papers from the latest international conference, following on from the highly successful previous conferences in this series held regularly since 1978. Papers cover all current and novel aspects of turbocharging systems design for boosting solutions for engine downsizing. The focus of the papers is on the application of turbocharger and other pressure charging devices to spark ignition (SI) and compression ignition (CI) engines in the passenger car and commercial vehicles. Novel boosting solutions for diesel engines operating in the industrial and marine market sectors are also included. The current emission legislations and environmental trends for reducing CO2 and fuel consumption are the major market forces in the transport (land and marine) and industry sectors. In these market sectors the internal combustion engine is the key product where downsizing is the driver for development for both SI and CI engines in the passenger car and commercial vehicle applications. The more stringent future market forces and environmental considerations mean more stringent engine downsizing, thus, novel systems are required to provide boosting solutions including hybrid, electric-motor and exhaust waste energy recovery systems for high efficiency, response, reliability, durability and compactness etc. For large engines the big challenge is to enhance the high specific power and efficiency whilst reducing emission levels (Nox and Sox) with variable quality fuels. This will require turbocharging systems for very high boost pressure, efficiency and a high degree of system flexibility. Presents papers from all the latest international conference Papers cover all aspects of the turbocharging systems design for boosting solutions for engine downsizing The focus of the papers is on the application of turbocharger and other pressure charging devices to spark ignition (SI) and compression ignition (CI) engines in the passenger car and commercial vehicles

Analysis of transonic flow fields inside a high pressure ratio centrifugal compressor at design and off design conditions, ASME 99-GT-446

Analysis of transonic flow fields inside a high pressure ratio centrifugal compressor at design and off design conditions, ASME 99-GT-446 PDF Author: Chunill Hah
Publisher:
ISBN:
Category :
Languages : en
Pages : 0

Book Description
Presented at the International Gas Turbine & Aeroengine Congress & Exhibition, Indianapolis, Indiana, Jun 7-Jun 10, 1999.

Turbochargers and Turbocharging

Turbochargers and Turbocharging PDF Author: Evangelos G. Giakoumis
Publisher: Nova Science Publishers
ISBN: 9781536122398
Category : Superchargers
Languages : en
Pages : 0

Book Description
Supercharging has long been established as the most successful means to maximise power output from a specific engine size. Through supercharging, the inlet air density is increased, usually by means of a compressor, and by doing so the amount of air trapped in the cylinders is increased accordingly. As a result, efficient burning of a proportionately higher amount of fuel is enabled. By far, the most successful version of supercharging is turbocharging. Here, the expansion in a turbine of the exhaust gases leaving the cylinders supplies the power needed to drive the compressor. At the moment, practically all diesel engines are turbocharged, with a continuously increasing penetration in the highly competitive market of SI-powered vehicles. The current book on turbochargers and turbocharging, comprising fifteen chapters, gathers important and novel research on many modern aspects of turbocharging for all kinds of gasoline and diesel-powered engine applications (automotive, truck, marine and aircraft). For example, characterisation of the value proposition of turbocharged vehicles, marine engines turbo-compounding, fundamental issues of turbocharger lag and its relation with engine-out PM emissions, variable geometric compressors, automotive two-stage turbocharging, and dynamic operation of turbochargers including VGT and surging effects are amongst the topics analysed. Review papers form a very important part of the book, namely the discussion and in-depth analysis of various automotive boosting systems, turbocharger reduced-order modeling, heat transfer and pulsating flows in turbomachinery, mathematical models for turbocharged engines, and turbomachine-based engine throttling. A considerable portion of the book (seven chapters) deals with control-oriented modeling techniques relating to the turbocharger and/or the whole engine power-plant. Such models have proven valuable during the design of both turbochargers and turbocharged engines, and are described and discussed in detail for a variety of automotive and aircraft applications. The book is written for post-graduate students, engineers and researchers in the field of internal combustion engines (diesel and SI) and turbochargers.

NASA Tech Briefs

NASA Tech Briefs PDF Author:
Publisher:
ISBN:
Category : Technology
Languages : en
Pages : 870

Book Description


Investigation of Low-capacity High-pressure Stages of Centrifugal Compressors

Investigation of Low-capacity High-pressure Stages of Centrifugal Compressors PDF Author: S. A. Anisimov
Publisher:
ISBN:
Category :
Languages : en
Pages : 26

Book Description
In view of the importance to contemporary turbocompressor design of increasing the efficiency of low-capacity, high-pressure, centrifugal compressors, and the difficulties engendered by the small discharge volumes, the paper summarizes and evaluates the results obtained in tests of such compressor stages. Tests were carried out on 9 configurations of intermediate stages (impeller-diffuser-return bend and channel) and 3 configurations of terminal stages (impeller-diffuser). All the impellers had a relative width b2/D2 of approximately 0.02; the intermediate stage impellers had a diameter D2 of 352 mm and were tested at tip speeds of 300-315 m/sec., while the terminal stage impellers were 220-256 mm in diameter and were tested at 196-229 m/sec. Three types of diffusers (channeled, vaned and vaneless) were used for the intermediate stages, while the terminal stages were tested only with vaned diffusers. The effectiveness of a particular stage was evaluated on the basis of the stage efficiency, impeller efficiency, diffuser efficiency, stage pressure coefficient, stage pressure ratio, impeller pressure ratio, drag coefficient of the stationary parts, relative loss coefficient of the stagnation pressure, degree of reaction, Mach number, Reynolds number, flow coefficient, discharge rate and the angles of incidence of flow. (Author).