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.