15th international conference on turbochargers and turbocharging : : proceedings of the 15th international conference on turbochargers and turbocharging (Twickenham, London, 16-17 May 2023) / / edited by Institution of Institution of Mechanical Engineers.

• HerausgeberIn: Institution of Institution of Mechanical Engineers,
• TeilnehmendeR: Institution of Institution of Mechanical Engineers,
• Place / Publishing House: Abingdon, England : : CRC Press/Balkema,, [2023]; ©2023
• Year of Publication: 2023
• Language: English
• Physical Description: 1 online resource (288 pages)

This volume presents a peer-reviewed collection of papers which discuss current and novel turbocharging system choices and components with a renewed emphasis to address the challenges posed by emission regulations and market trends.

Table of Contents

• Cover
• Title Page
• Copyright Page
• Table of Contents
• Committee
• Compressor considerations
• Compressor considerations
• 1 Introduction
• 2 Experimental Set-Up And Measuring Equipment
• 3 Experimental Results
• 4 Conclusion
• References
• An investigation on influence of inlet elbow on performance of a centrifugal compressor with vaned diffuser
• 1 Introduction
• 2 The Centrifugal Compressor And Numerical Method
• 2.1 Centrifugal compressor configurations
• 2.2 Numerical method and validations
• 3 Performance Of Inlet Straight Pipe And Different Bending Directions
• 3.1 Compressor performance at different inlet bending directions
• 3.2 Coupling mechanism
• 4 Conclusions
• Nomenclatures
• References
• Electrification/Driven
• Electrification/Driven
• 1 Introduction
• 2 Engine Model, Simulation Settings And Performance Indicator
• 2.1 Engine model and simulation settings
• 2.2 Performance indicators
• 3 Simulation Results - How Does An eTC Improve Engine Efficiency?
• 4 Simulation Results - Impact of the MGU-K on Transient Behaviour Of The Engine And Turbocharger
• 5 Discussion
• 6 Conclusions
• Nomenclature
• References
• Benefits of a driven-turbo for hydrogen internal combustion engines
• 1 Introduction
• 2 Background
• 2.1 Engine and model
• 2.2 SuperTurbo
• 3 WHTC Simulation Results
• 4 Transient Simulation Analysis
• 5 Steady State Analysis
• 6 Boosting System Comparisons
• 7 Summary
• References
• Secondary air injection with E-Boosting devices
• 1 Introduction
• 2 Challenges &amp
• x00026
• Requirements Of New Emission Regulations
• 3 Secondary Air Injection With E-Compressor
• 3.1 SAI layouts with E-Compressor
• 4 Secondary Air Injection With E-Turbo
• 4.1 SAI layout with E-Turbo
• 4.2 SAI Operation with E-Turbo
• 5 Sai Operation - E-Compressor vs. E-Turbo.
• 5.1 Boundary conditions - E-Compressor vs. E-Turbo
• 5.2 Steady state simulations - E-Compressor vs. E-Turbo
• 5.3 Transient simulations - E-Compressor vs. E-Turbo
• 6 Conclusion
• References
• Modelling and simulation
• Modelling and simulation
• 1 Introduction
• 2 Mathematical Model
• 2.1 Parameter relations
• 3 Model Validation
• 4 Model Assessment
• 5 Conclusions
• Nomenclature
• References
• Novel shroud treatment for turbocharger centrifugal compressor surge enhancement
• 1 Introduction
• 1.1 Hypothesis behind the idea - Annular shroud treatment
• 2 Experimental Facility And Test Matrix
• 2.1 Experimental facility
• 2.2 &amp
• x0201C
• Cavity&amp
• x0201D
• inserts
• 3 Experimental Results - Unsteady And Steady Outlet Conditions
• 3.1 Analysis of unsteady experimental results - Surge margin enhancement with cavity treatment under pulsating conditions
• 3.2 Performance maps for all pulse frequencies
• 3.3 Analysis of steady experimental results - Surge margin enhancement with cavity treatment under steady conditions
• 4 CFD Assessment Of The Cavity Concept - Looking Into The Flow Mechanism
• 4.1 CFD analysis and flow-field assessment for blade Mach and original compressor - Comparison at near surge and peak efficiency conditions
• 5 Summary
• References
• Novel materials and challenges
• Novel materials and challenges
• 1 Introduction
• 2 Nitrogen Alloyed Stainless Steel
• 3 ICME Approach To Design A New Material Composition
• 4 Influence Of Microstucture Features
• 5 Material Characterization Of Nitrogen Alloyed Steel
• 6 Optimization Of Manufacturing Process Parameters
• 7 Housing Design And Validation
• 8 Conclusion
• Nomenclature
• References
• Design and optimisation of compressors
• Design and optimisation of compressors
• 1 Introduction
• 2 Literature Review
• 2.1 Experimental set up.
• 3 Results And Discussion
• 3.1 Cycle average pressure ratio and efficiency
• 3.2 Static pressure measurement for one pulse
• 3.3 OP C &amp
• x02018
• filling and emptying&amp
• x02019
• effect volute
• 3.4 Quasi-steady vs unsteady OP A and OP C
• 4 Conclusion
• References
• Design and optimization of compressor for a fuel cell system on a commercial truck under real driving conditions
• 1 Introduction
• 2 System-Level Simulation In Real Driving Conditions
• 3 Compressor Meanline Design Optimization
• 4 Compressor Components Design
• 4.1 Impeller design
• 4.2 Volute design
• 4.3 Steady CFD analysis
• 5 Compressor Components Optimization
• 5.1 Impeller optimization
• 5.2 Volute optimization
• 5.3 Steady CFD analysis of optimized compressor stage
• 5.4 Static structural analysis
• 6 Final Performance Evaluation In System Model
• 7 Conclusions
• Nomenclature
• References
• Turbine design considerations
• Turbine design considerations
• 1 Introduction
• 2 Numerical Method
• 3 Analysis Of Influence Of Bypass Flow On Turbine Performance
• 4 Influence Of Bypass Flow On Flow Interactions
• 4.1 Flow field analysis of the inter-stage pipe
• 4.2 Flow field analysis of the volute
• 4.3 Flow field analysis of the rotor
• 5 Conclusions
• References
• A 3D inverse design based rapid multi-disciplinary optimization strategy for radial-inflow turbines
• 1 Introduction
• 2 Optimisation Methodology
• 3 Baseline CFD And FEA Analysis
• 4 Inverse Design Based Aerodynamic And Mechanical Performance Parameters
• 5 Direct Optimisation And Results
• 6 Conclusions
• Nomenclature
• References
• Experimental investigations
• Experimental investigations
• 1 Introduction
• 2 Parametric Model And Optimisation
• 2.1 Nozzle parametrisation
• 2.2 Radial fibre rotor parametrisation
• 2.3 Non-radial fibre rotor parametrisation.
• 2.4 Other 3D parametrisation
• 2.5 Numerical set up
• 2.6 Platform integration and optimisation algorithm
• 3 Results And Discussion
• 3.1 Sensitivity analysis and optimised radial fibre geometry
• 3.2 Sensitivity analysis and optimised non-radial fibre geometry
• 3.3 Experimental results
• 3.4 Losses and CFD analysis
• 4 Conclusions
• Nomenclature
• References
• Comparative analysis of the inverted Joule cycle, closed Joule cycle, and various approximate Ericsson cycles for waste heat recovery from exhaust gases with the working fluid as a variable
• 1 Introduction
• 2 Modelling Of WHR Cycles
• 2.1 WHR cycles explored
• 2.1.1 Inverted Joule cycle (IJC)
• 2.1.2 Simple closed Joule cycle (CJC)
• 2.1.3 Closed Joule cycle with heat recuperation
• 2.1.4 Two-stage Ericsson cycle
• 2.1.5 Three-stage Ericsson cycle
• 2.2 Modelling of WHR cycles
• 2.2.1 MS-Excel
• 2.2.2 Aspen Plus
• 3 Results And Discussion
• 3.1 Thermodynamic efficiency of the closed WHR cycles
• 3.2 Specific net work output of WHR cycles
• 3.2.1 Impact of exhaust gas temperatures on specific net work output
• 3.2.2 Impact of working fluid on specific net work output in CJC
• 4 Conclusions
• References
• Blade vibration visualization of dual volute turbine with vaned nozzle by using high speed Digital Image Correlation
• 1 Introduction
• 2 Aerodynamic Excitation Mode Of Dual Volute Turbine
• 3 Resonance Mode Analysis At Turbine Blade Design Stage
• 4 Blade Vibration Analysis Result From Hood Test
• 5 Visualization Of Turbine Blade Vibration Using DIC
• 6 Conclusions
• References
• Internal flow investigation in a radial turbine non-axisymmetric diffuser using particle image velocimetry
• 1 Introduction
• 2 Measurement Details
• 2.1 PIV experimental equipment
• 2.2 Turbine specification
• 2.3 Turbine performance test
• 2.4 PIV measurement planes.
• 2.5 Wall static pressure measurement points
• 2.6 Measurement conditions
• 3 Results And Discussions
• 3.1 PIV measurement results at N1
• 3.2 Diffuser performance analysis by PIV and wall static pressure measurement
• 3.3 PIV measurement results at N2
• 3.4 PIV measurement results at N3 and N4
• 4 Conclusions
• 5 Future Works
• Nomenclature
• References
• Author index.