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.

Format:

Book

Contributor:

Institution of Institution of Mechanical Engineers, editor.

Language:

English

Subjects (All):

Superchargers.

Physical Description:

1 online resource (288 pages)

Place of Publication:

Abingdon, England : CRC Press/Balkema, [2023]

Summary:

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.

Contents:

Cover

Title Page

Copyright Page

Table of Contents

Committee

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

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

Electrification/Driven

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

Benefits of a driven-turbo for hydrogen internal combustion engines

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

Secondary air injection with E-Boosting devices

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

Modelling and simulation

2 Mathematical Model

2.1 Parameter relations

3 Model Validation

4 Model Assessment

5 Conclusions

Novel shroud treatment for turbocharger centrifugal compressor surge enhancement

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

Novel materials and challenges

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

Design and optimisation of compressors

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

Design and optimization of compressor for a fuel cell system on a commercial truck under real driving conditions

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

Turbine design considerations

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

A 3D inverse design based rapid multi-disciplinary optimization strategy for radial-inflow turbines

2 Optimisation Methodology

3 Baseline CFD And FEA Analysis

4 Inverse Design Based Aerodynamic And Mechanical Performance Parameters

5 Direct Optimisation And Results

Experimental investigations

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

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

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

3.1 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

Blade vibration visualization of dual volute turbine with vaned nozzle by using high speed Digital Image Correlation

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

Internal flow investigation in a radial turbine non-axisymmetric diffuser using particle image velocimetry

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

5 Future Works

Author index.

Notes:

Includes bibliographical references and index.

CC BY-NC-ND

Description based on print version record.

ISBN:

9781003429746

1003429742

9781000964004

1000964000

9781000963960

1000963969

OCLC:

1376935022