10th International Conference on Turbochargers and Turbocharging

10th International Conference on Turbochargers and Turbocharging

1st Edition - May 11, 2012

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  • Author: Institution of Mechanical Engineers
  • eBook ISBN: 9780857096135

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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.

Key Features

  • 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

Readership

Mechanical engineers, industry designers, academics, students

Table of Contents

  • Your Global Technology Partner

    Session 1: Novel Applications

    Chapter 1: HyBoost – An intelligently electrified optimised downsized gasoline engine concept

    ABSTRACT

    1 INTRODUCTION

    2 HYBOOST CONCEPT

    3 RESULTS AND DISCUSSION

    SUMMARY and CONCLUSIONS

    ACKNOWLEDGEMENT

    Chapter 2: Turbo-Discharging for improved engine torque and fuel economy

    ABSTRACT

    1 INTRODUCTION

    2 TURBO-DISCHARGING

    3 EXPERIMENTAL HARDWARE

    4 EXPERIMENTAL RESULTS

    5 SYSTEM PERFORMANCE

    6 TECHNOLOGY OVERVIEW

    7 CONCLUSIONS

    ACKNOWLEDGEMENTS

    Session 2A: High-Boost and Two-Stage Systems

    Chapter 3: Boost system selection for a heavily downsized spark ignition prototype engine

    ABSTRACT

    1 INTRODUCTION

    2 THE ULTRABOOST PROJECT

    3 BOOSTING ASSESSMENT

    4 BOOSTING SYSTEM

    5 BOOSTING COMPONENTS

    6 BOOSTING SYSTEM SCORING

    7 CONCLUSIONS

    Chapter 4: R2S™ – modelling and consequences for the boost control

    ABSTRACT

    1 INTRODUCTION

    2 SYSTEM DESCRIPTION

    3 MODELLING

    4 POTENTIALS FOR BETTER DYNAMICS AND CONTROLLABILITY

    5 CONCLUSION AND OUTLOOK

    Chapter 5: Application of two stage turbocharging systems on large engines

    ABSTRACT

    1 THERMODYNAMIC ASPECTS OF THE TURBOCHARGED ENGINE

    1.1 The closed cycle

    2 REQUIREMENTS ON THE TURBOCHARGING SYSTEM

    3 APPLICATION AND POTENTIAL OF POWER2 IN DIFFERENT ENGINE SEGMENTS

    CONCLUSIONS

    Session 2B: Turbine Fatigue and Structural

    Chapter 6: A new approach to thermo mechanical fatigue shown on turbocharger housings

    ABSTRACT

    1 INTRODUCTION

    2 DAMAGE OPERATOR APPROACH

    3 STRESS-LIFE DAMAGE OPERATOR APPROACH

    4 STRAIN-LIFE DAMAGE OPERATOR APPROACH

    5 VISCOPLASTIC APPROXIMATION AND CREEP FATIGUE

    6 FINITE-ELEMENT BASED DURABILITY SIMULATION

    7 THERMAL SHOCK SIMULATION ON A TURBOCHARGER HOUSING

    8 CONCLUSIONS

    Chapter 7: On the influence of thermal boundary conditions on the Thermo Mechanical Analysis of turbine housing of a turbocharger

    ABSTRACT

    1 INTRODUCTION

    2 STANDARD WORKFLOW FOR THERMO-MECHANICAL FATIGUE (TMF)

    3 SIMPLIFIED TMF PROCESS

    4 POSSIBLE EXTENSIONS OF THE STANDARD WORKFLOW

    5 CONCLUSIONS AND OUTLOOK

    Chapter 8: Compressor wheel low cycle fatigue calculations for off highway applications – an approach to accurately calculate application duty cycle

    ABSTRACT

    2 INTRODUCTION

    3 APPROACH TO LOW CYCLE FATIGUE

    4 STANDARDISED APPROACH

    5 NEW APPROACH

    6 EXPERIMENTAL VALIDATION

    7 FACTORS AFFECTING LOW CYCLE FATIGUE

    8 CONCLUSION AND FURTHER WORK

    Session 3A: Compressor Aero-Design Optimisation (CFD)

    Chapter 9: Variable trim compressor – a new approach to variable compressor geometry

    ABSTRACT

    1 INTRODUCTION

    2 OPERATING PRINCIPLE OF THE VARIABLE TRIM COMPRESSOR (VTC)

    3 NUMERICAL STUDIES

    4 PILOT SURVEY ON THE TURBOCHARGER TEST BENCH

    5 VTC DESIGN

    6 SUMMARY AND OUTLOOK

    Chapter 10: Design optimisation of an impeller with CFD and Meta-Model of optimal Prognosis (MoP)

    ABSTRACT

    1 INTRODUCTION

    2 PARAMETRICAL IMPELLER GEOMETRY

    3 CFD-MODEL

    4 OPTIMISATION

    5 RESULTS

    6 CONCLUSIONS

    Chapter 11: Development of advanced centrifugal compressor for turbocharger, applying control of internal unsteady flow structure

    ABSTRACT

    1 INTRODUCTION

    2 ENGINE TREND AND THE REQUIREMENTS FOR TURBOCHARGER

    I Growth of small displacement turbocharger applications

    II Down-sizing with turbocharger for a higher output and capacity enlargement of compressor

    III Enlargement of the compressor operating range in response to down-speeding

    IV Higher pressure ratio of the compressor for diesel engines

    V Down-sizing for low-speed response improvement

    VI Efficiency improvement

    3 RELATION BETWEEN THE COMPRESSOR WORKING RANGE AND TIP LEAKAGE VORTEX

    4 INTRODUCTION OF THE BLADE DEVELOPING TECHNIQUE

    5 CONCLUSION

    Session 3B: Rotordynamics and Vibrations

    Chapter 12: Shaft coking resolution using multiple variable bearing system design optimization for commercial vehicle turbochargers

    ABSTRACT

    1 INTRODUCTION

    2 METHODS

    3 RESULT

    4 CONCLUSIONS

    5 ACKNOWLEDGEMENT

    Chapter 13: Advanced rotordynamic simulation of turbochargers using coupled multibody and finite element models

    ABSTRACT

    1 INTRODUCTION

    2 SINGLE OIL FILM BEARING WITH MISALIGNMENT

    3 TURBOCHARGER MODEL

    4 CO-SIMULATION: NUMERICAL SOLUTION OF THE COUPLED SYSTEM

    Semi-Implicit Coupling Approach

    5 NUMERICAL RESULTS

    Chapter 14: Turbocharger blade vibration: Measurement and validation through laser tip-timing

    ABSTRACT

    1 INTRODUCTION

    2 TIP-TIMING METHOD

    3 COMPARISON OF LASER PROBES WITH OTHER SENSORS

    4 MATHEMATICAL MODELLING AND SIMULATION

    5 SIMULATION AND TEST RESULTS CORRELATION

    6 SUMMARY

    ACKNOWLEDGEMENT

    Session 4A: Advancing Simulation and Validation

    Chapter 15: On wide mapping of a mixed flow turbine with regard to compressor heat flows during turbocharger testing

    ABSTRACT

    1 INTRODUCTION

    2 PROBLEM OVERVIEW

    3 EXPERIMENTAL SETUP

    4 TEST RESULTS

    5 HEAT TRANSFER CORRECTION

    6 CALCULATION OF "ADIABATIC" MAPS

    7 CONCLUSIONS AND FURTHER WORK

    Chapter 16: Turbocharger matching methodology for improved exhaust energy recovery

    ABSTRACT

    1 INTRODUCTION

    2 LITERATURE REVIEW

    3 MAP PREDICTION METHOD

    4 RESULTS AND DISCUSSION

    5 CONCLUSION

    Chapter 17: Experimental investigation under unsteady flow conditions on turbocharger compressors for automotive gasoline engines

    ABSTRACT

    1 INTRODUCTION

    2 TEST FACILITY AND MEASURING SYSTEM

    3 TEST PROGRAMME

    4 EXPERIMENTAL RESULTS

    5 CONCLUSIONS

    ACKNOWLEDGEMENTS

    Session 4B: Turbine Development Trends

    Chapter 18: Development of a common dual axle VNTTM for single- and two-stage off-highway applications

    ABSTRACT

    1 INTRODUCTION AND BACKGROUND

    2 PERFORMANCE TARGETS AND AERODYNAMIC DEVELOPMENT

    3 ACTUATION SYSTEM DEVELOPMENT AND OPTIMIZATION

    4 CONCLUSIONS

    Chapter 19: An experimental assessment of the effects of stator vane clearance location on an automotive turbocharger turbine

    ABSTRACT

    1 INTRODUCTION

    2 EXPERIMENTAL SETUP

    3 TEST RESULTS AND DISCUSSION

    4 CONCLUSIONS

    Chapter 20: Testing turbine expanders for high efficiency diesels

    ABSTRACT

    1.0 INTRODUCTION

    2.0 DESIGN

    3.0 CELL BUILD

    4.0 COMMISSIONING

    5.0 RUNNING SYSTEM IN MANUAL

    6.0 CONCLUSIONS

    7.0 ACKNOWLEDGEMENTS

    Session 5: Systems and Transient Response

    Chapter 21: The role of turbocompound in the era of emissions reduction

    ABSTRACT

    1 INTRODUCTION

    2 ANALYSIS OVERVIEW

    3 RESULTS

    3.3 Improvement potential via application of advanced technologies

    4 CONCLUSIONS

    Chapter 22: Characterization of a low pressure turbine for turbocompounding applications in a mild-hybrid gasoline engine

    1 ABSTRACT

    3 INTRODUCTION

    4 BACKGROUND

    5 LOW PRESSURE TURBINE CHARACTERIZATION

    6 1-D ENGINE GAS DYNAMIC SIMULATION

    7 CONCLUSIONS

    8 ACKNOWLEDGEMENT

    Chapter 23: The transient response of turbocharger turbines

    ABSTRACT

    1 INTRODUCTION

    2 EQUATION OF ACCELERATION

    3 EFFECTS OF TURBOCHARGER PARAMETERS ON TRANSIENT

    4 CONCLUSIONS

    Session 6: Compressor Development Trends

    Chapter 24: Performance of a small-size two-stage centrifugal compressor

    ABSTRACT

    1 INTRODUCTION

    2 AERODYNAMIC DESIGN AND ANALYSIS METHODS

    3 TEST RIG DESCRIPTION

    4 SINGLE-STAGE COMPRESSOR PERFORMANCE

    5 TWO-STAGE COMPRESSOR PERFORMANCE

    6 CONCLUSION

    Chapter 25: Effect of diffuser width and tip clearance on the static pressure distributions in a vaneless diffuser of a high-speed centrifugal compressor

    ABSTRACT

    1 INTRODUCTION

    2 STUDIED DESIGNS AND EXPERIMENTAL SETUP

    3 PRESSURE DISTRIBUTIONS

    4 CONCLUSIONS AND DISCUSSION

    Chapter 26: Experimental and numerical analysis of a classical bleed slot system for a turbocharger compressor

    ABSTRACT

    INTRODUCTION

    BASELINE COMPRESSOR

    NUMERICAL METHOD

    EXPERIMENTAL SETUP

    BASELINE BLEED SLOT SYSTEM

    VARIOUS POSITIONS OF THE BLEED SLOT

    EFFECT OF INLET SWIRL ON INCIDENCE DUE TO VARIOUS SLOT POSITIONS

    CONCLUSION

    ACKNOWLEDGEMENTS

    Session 7: Novel Pressure Charging and High Efficiency Systems

    Chapter 27: Dual boost compressor development

    ABSTRACT

    1 INTRODUCTION

    2 COMPRESSOR DEVELOPMENT

    3 COMPRESSOR CHARACTERISTICS

    4 CONCLUSION

    ACKNOWLEDGEMENTS

    Chapter 28: Electrically driven supercharger using the TurboClaw® compressor for engine downsizing

    ABSTRACT

    1 INTRODUCTION

    2 ELECTRIC SUPERCHARGING

    3 INNOVATION

    4 EXPERIMENTAL VALIDATION

    CONCLUSION

    5.0 ACKNOWLEDGEMENTS

    Chapter 29: Development of new turbocharger technologies for energy efficiency and low emissions

    1 INTRODUCTION

    2 HIGH PRESSURE RATIO MET-MB TURBOCHARGER

    3 CONSIDERATIONS FOR LOW-SPEED OPERATION

    4 VARIABLE GEOMETRY TURBINE AREA

    5 HYBRID TURBOCHARGER SYSTEM

    6 CONCLUSION

    Session 8: Turbine Unsteady Flow

    Chapter 30: Experimental investigation on the effect of pulsations on exhaust manifold-related flows aiming at improved efficiency

    ABSTRACT

    1 INTRODUCTION

    2 PULSATING FLOW THROUGH CURVED PIPES

    3 EXPERIMENTAL PROCEDURE

    4 RESULTS AND DISCUSSION

    5 SUMMARY AND CONCLUSIONS

    ACKNOWLEDGEMENTS

    Chapter 31: A comparison of timescales within a pulsed flow turbocharger turbine

    ABSTRACT

    1 BACKGROUND

    2 UNSTEADY CRITERIA

    3 EXPERIMENTAL DATA

    4 COMPUTATIONAL MODEL

    5 TIMESCALES

    6 CONCLUSIONS

    7 ACKNOWLEDGEMENTS

    Chapter 32: Experimental analysis of turbocharger interaction with a pulsatile flow through time-resolved flow measurements upstream and downstream of the turbine

    ABSTRACT

    1 INTRODUCTION

    2 EXPERIMENTAL SET-UP

    3 TIME RESOLVED MEASUREMENTS WITH A VORTEX SHEDDING FLOW METER

    4 RESULTS

    5 CONCLUSIONS AND FUTURE WORK

    ACKNOWLEDGEMENT

    Additional Papers Not Presented at the Conference

    Chapter 33: Reduced model for the radial turbine based on proper orthogonal decomposition

    ABSTRACT

    1 INTRODUCTION

    2 MODEL REDUCTION METHOD

    3 POD MODES FOR A RADIAL TURBINE

    4 SUMMARY AND CONCLUSIONS

    ACKNOWLEDGMENTS

    Chapter 34: Unsteady flow-based aeroacoustics analysis in centrifugal compressor

    ABSTRACT

    1 INTRODUCTION

    2 DESCRIPTION ON THE CENTRIFUGAL COMPRESSOR

    3 NUMERICAL METHODOLOGY

    4 SPECTRUM ANALYSIS AND DISCUSSION

    CONCLUSIONS

    ACKNOWLEDGEMENTS

    Author Index

Product details

  • No. of pages: 456
  • Language: English
  • Copyright: © Woodhead Publishing 2012
  • Published: May 11, 2012
  • Imprint: Woodhead Publishing
  • eBook ISBN: 9780857096135

About the Author

Institution of Mechanical Engineers

The Institution of Mechanical Engineers is one of the leading professional engineering institutions in the world.

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