10th International Conference on Turbochargers and Turbocharging

Häftad, Engelska, 2016

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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.

Produktinformation

Utgivningsdatum2016-08-19
Vikt730 g
FormatHäftad
SpråkEngelska
Antal sidor456
FörlagElsevier Science & Technology
ISBN9780081016626

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Your Global Technology PartnerSession 1: Novel ApplicationsChapter 1: HyBoost – An intelligently electrified optimised downsized gasoline engine conceptABSTRACT1 INTRODUCTION2 HYBOOST CONCEPT3 RESULTS AND DISCUSSIONSUMMARY and CONCLUSIONSACKNOWLEDGEMENTChapter 2: Turbo-Discharging for improved engine torque and fuel economyABSTRACT1 INTRODUCTION2 TURBO-DISCHARGING3 EXPERIMENTAL HARDWARE4 EXPERIMENTAL RESULTS5 SYSTEM PERFORMANCE6 TECHNOLOGY OVERVIEW7 CONCLUSIONSACKNOWLEDGEMENTSSession 2A: High-Boost and Two-Stage SystemsChapter 3: Boost system selection for a heavily downsized spark ignition prototype engineABSTRACT1 INTRODUCTION2 THE ULTRABOOST PROJECT3 BOOSTING ASSESSMENT4 BOOSTING SYSTEM5 BOOSTING COMPONENTS6 BOOSTING SYSTEM SCORING7 CONCLUSIONSChapter 4: R2S™ – modelling and consequences for the boost controlABSTRACT1 INTRODUCTION2 SYSTEM DESCRIPTION3 MODELLING4 POTENTIALS FOR BETTER DYNAMICS AND CONTROLLABILITY5 CONCLUSION AND OUTLOOKChapter 5: Application of two stage turbocharging systems on large enginesABSTRACT1 THERMODYNAMIC ASPECTS OF THE TURBOCHARGED ENGINE1.1 The closed cycle2 REQUIREMENTS ON THE TURBOCHARGING SYSTEM3 APPLICATION AND POTENTIAL OF POWER2 IN DIFFERENT ENGINE SEGMENTSCONCLUSIONSSession 2B: Turbine Fatigue and StructuralChapter 6: A new approach to thermo mechanical fatigue shown on turbocharger housingsABSTRACT1 INTRODUCTION2 DAMAGE OPERATOR APPROACH3 STRESS-LIFE DAMAGE OPERATOR APPROACH4 STRAIN-LIFE DAMAGE OPERATOR APPROACH5 VISCOPLASTIC APPROXIMATION AND CREEP FATIGUE6 FINITE-ELEMENT BASED DURABILITY SIMULATION7 THERMAL SHOCK SIMULATION ON A TURBOCHARGER HOUSING8 CONCLUSIONSChapter 7: On the influence of thermal boundary conditions on the Thermo Mechanical Analysis of turbine housing of a turbochargerABSTRACT1 INTRODUCTION2 STANDARD WORKFLOW FOR THERMO-MECHANICAL FATIGUE (TMF)3 SIMPLIFIED TMF PROCESS4 POSSIBLE EXTENSIONS OF THE STANDARD WORKFLOW5 CONCLUSIONS AND OUTLOOKChapter 8: Compressor wheel low cycle fatigue calculations for off highway applications – an approach to accurately calculate application duty cycleABSTRACT2 INTRODUCTION3 APPROACH TO LOW CYCLE FATIGUE4 STANDARDISED APPROACH5 NEW APPROACH6 EXPERIMENTAL VALIDATION7 FACTORS AFFECTING LOW CYCLE FATIGUE8 CONCLUSION AND FURTHER WORKSession 3A: Compressor Aero-Design Optimisation (CFD)Chapter 9: Variable trim compressor – a new approach to variable compressor geometryABSTRACT1 INTRODUCTION2 OPERATING PRINCIPLE OF THE VARIABLE TRIM COMPRESSOR (VTC)3 NUMERICAL STUDIES4 PILOT SURVEY ON THE TURBOCHARGER TEST BENCH5 VTC DESIGN6 SUMMARY AND OUTLOOKChapter 10: Design optimisation of an impeller with CFD and Meta-Model of optimal Prognosis (MoP)ABSTRACT1 INTRODUCTION2 PARAMETRICAL IMPELLER GEOMETRY3 CFD-MODEL4 OPTIMISATION5 RESULTS6 CONCLUSIONSChapter 11: Development of advanced centrifugal compressor for turbocharger, applying control of internal unsteady flow structureABSTRACT1 INTRODUCTION2 ENGINE TREND AND THE REQUIREMENTS FOR TURBOCHARGERI Growth of small displacement turbocharger applicationsII Down-sizing with turbocharger for a higher output and capacity enlargement of compressorIII Enlargement of the compressor operating range in response to down-speedingIV Higher pressure ratio of the compressor for diesel enginesV Down-sizing for low-speed response improvementVI Efficiency improvement3 RELATION BETWEEN THE COMPRESSOR WORKING RANGE AND TIP LEAKAGE VORTEX4 INTRODUCTION OF THE BLADE DEVELOPING TECHNIQUE5 CONCLUSIONSession 3B: Rotordynamics and VibrationsChapter 12: Shaft coking resolution using multiple variable bearing system design optimization for commercial vehicle turbochargersABSTRACT1 INTRODUCTION2 METHODS3 RESULT4 CONCLUSIONS5 ACKNOWLEDGEMENTChapter 13: Advanced rotordynamic simulation of turbochargers using coupled multibody and finite element modelsABSTRACT1 INTRODUCTION2 SINGLE OIL FILM BEARING WITH MISALIGNMENT3 TURBOCHARGER MODEL4 CO-SIMULATION: NUMERICAL SOLUTION OF THE COUPLED SYSTEMSemi-Implicit Coupling Approach5 NUMERICAL RESULTSChapter 14: Turbocharger blade vibration: Measurement and validation through laser tip-timingABSTRACT1 INTRODUCTION2 TIP-TIMING METHOD3 COMPARISON OF LASER PROBES WITH OTHER SENSORS4 MATHEMATICAL MODELLING AND SIMULATION5 SIMULATION AND TEST RESULTS CORRELATION6 SUMMARYACKNOWLEDGEMENTSession 4A: Advancing Simulation and ValidationChapter 15: On wide mapping of a mixed flow turbine with regard to compressor heat flows during turbocharger testingABSTRACT1 INTRODUCTION2 PROBLEM OVERVIEW3 EXPERIMENTAL SETUP4 TEST RESULTS5 HEAT TRANSFER CORRECTION6 CALCULATION OF "ADIABATIC" MAPS7 CONCLUSIONS AND FURTHER WORKChapter 16: Turbocharger matching methodology for improved exhaust energy recoveryABSTRACT1 INTRODUCTION2 LITERATURE REVIEW3 MAP PREDICTION METHOD4 RESULTS AND DISCUSSION5 CONCLUSIONChapter 17: Experimental investigation under unsteady flow conditions on turbocharger compressors for automotive gasoline enginesABSTRACT1 INTRODUCTION2 TEST FACILITY AND MEASURING SYSTEM3 TEST PROGRAMME4 EXPERIMENTAL RESULTS5 CONCLUSIONSACKNOWLEDGEMENTSSession 4B: Turbine Development TrendsChapter 18: Development of a common dual axle VNTTM for single- and two-stage off-highway applicationsABSTRACT1 INTRODUCTION AND BACKGROUND2 PERFORMANCE TARGETS AND AERODYNAMIC DEVELOPMENT3 ACTUATION SYSTEM DEVELOPMENT AND OPTIMIZATION4 CONCLUSIONSChapter 19: An experimental assessment of the effects of stator vane clearance location on an automotive turbocharger turbineABSTRACT1 INTRODUCTION2 EXPERIMENTAL SETUP3 TEST RESULTS AND DISCUSSION4 CONCLUSIONSChapter 20: Testing turbine expanders for high efficiency dieselsABSTRACT1.0 INTRODUCTION2.0 DESIGN3.0 CELL BUILD4.0 COMMISSIONING5.0 RUNNING SYSTEM IN MANUAL6.0 CONCLUSIONS7.0 ACKNOWLEDGEMENTSSession 5: Systems and Transient ResponseChapter 21: The role of turbocompound in the era of emissions reductionABSTRACT1 INTRODUCTION2 ANALYSIS OVERVIEW3 RESULTS3.3 Improvement potential via application of advanced technologies4 CONCLUSIONSChapter 22: Characterization of a low pressure turbine for turbocompounding applications in a mild-hybrid gasoline engine1 ABSTRACT3 INTRODUCTION4 BACKGROUND5 LOW PRESSURE TURBINE CHARACTERIZATION6 1-D ENGINE GAS DYNAMIC SIMULATION7 CONCLUSIONS8 ACKNOWLEDGEMENTChapter 23: The transient response of turbocharger turbinesABSTRACT1 INTRODUCTION2 EQUATION OF ACCELERATION3 EFFECTS OF TURBOCHARGER PARAMETERS ON TRANSIENT4 CONCLUSIONSSession 6: Compressor Development TrendsChapter 24: Performance of a small-size two-stage centrifugal compressorABSTRACT1 INTRODUCTION2 AERODYNAMIC DESIGN AND ANALYSIS METHODS3 TEST RIG DESCRIPTION4 SINGLE-STAGE COMPRESSOR PERFORMANCE5 TWO-STAGE COMPRESSOR PERFORMANCE6 CONCLUSIONChapter 25: Effect of diffuser width and tip clearance on the static pressure distributions in a vaneless diffuser of a high-speed centrifugal compressorABSTRACT1 INTRODUCTION2 STUDIED DESIGNS AND EXPERIMENTAL SETUP3 PRESSURE DISTRIBUTIONS4 CONCLUSIONS AND DISCUSSIONChapter 26: Experimental and numerical analysis of a classical bleed slot system for a turbocharger compressorABSTRACTINTRODUCTIONBASELINE COMPRESSORNUMERICAL METHODEXPERIMENTAL SETUPBASELINE BLEED SLOT SYSTEMVARIOUS POSITIONS OF THE BLEED SLOTEFFECT OF INLET SWIRL ON INCIDENCE DUE TO VARIOUS SLOT POSITIONSCONCLUSIONACKNOWLEDGEMENTSSession 7: Novel Pressure Charging and High Efficiency SystemsChapter 27: Dual boost compressor developmentABSTRACT1 INTRODUCTION2 COMPRESSOR DEVELOPMENT3 COMPRESSOR CHARACTERISTICS4 CONCLUSIONACKNOWLEDGEMENTSChapter 28: Electrically driven supercharger using the TurboClaw® compressor for engine downsizingABSTRACT1 INTRODUCTION2 ELECTRIC SUPERCHARGING3 INNOVATION4 EXPERIMENTAL VALIDATIONCONCLUSION5.0 ACKNOWLEDGEMENTSChapter 29: Development of new turbocharger technologies for energy efficiency and low emissions1 INTRODUCTION2 HIGH PRESSURE RATIO MET-MB TURBOCHARGER3 CONSIDERATIONS FOR LOW-SPEED OPERATION4 VARIABLE GEOMETRY TURBINE AREA5 HYBRID TURBOCHARGER SYSTEM6 CONCLUSIONSession 8: Turbine Unsteady FlowChapter 30: Experimental investigation on the effect of pulsations on exhaust manifold-related flows aiming at improved efficiencyABSTRACT1 INTRODUCTION2 PULSATING FLOW THROUGH CURVED PIPES3 EXPERIMENTAL PROCEDURE4 RESULTS AND DISCUSSION5 SUMMARY AND CONCLUSIONSACKNOWLEDGEMENTSChapter 31: A comparison of timescales within a pulsed flow turbocharger turbineABSTRACT1 BACKGROUND2 UNSTEADY CRITERIA3 EXPERIMENTAL DATA4 COMPUTATIONAL MODEL5 TIMESCALES6 CONCLUSIONS7 ACKNOWLEDGEMENTSChapter 32: Experimental analysis of turbocharger interaction with a pulsatile flow through time-resolved flow measurements upstream and downstream of the turbineABSTRACT1 INTRODUCTION2 EXPERIMENTAL SET-UP3 TIME RESOLVED MEASUREMENTS WITH A VORTEX SHEDDING FLOW METER4 RESULTS5 CONCLUSIONS AND FUTURE WORKACKNOWLEDGEMENTAdditional Papers Not Presented at the ConferenceChapter 33: Reduced model for the radial turbine based on proper orthogonal decompositionABSTRACT1 INTRODUCTION2 MODEL REDUCTION METHOD3 POD MODES FOR A RADIAL TURBINE4 SUMMARY AND CONCLUSIONSACKNOWLEDGMENTSChapter 34: Unsteady flow-based aeroacoustics analysis in centrifugal compressorABSTRACT1 INTRODUCTION2 DESCRIPTION ON THE CENTRIFUGAL COMPRESSOR3 NUMERICAL METHODOLOGY4 SPECTRUM ANALYSIS AND DISCUSSIONCONCLUSIONSACKNOWLEDGEMENTSAuthor Index