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Sam Akehurst

BEng(Hons), CEng MIMechE, Prof

 https://orcid.org/0000-0001-9265-6047

  • 8 EAST 3.06

Accepting PhD Students

20012021
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Research Output 2001 2019

2019
15 Downloads (Pure)

Accuracy of Diesel Engine Combustion Metrics over the Full Range of Engine Operating Conditions

Dowell, P., Akehurst, S. & Burke, R., 30 Sep 2019, In : Journal of Engineering for Gas Turbines and Power: Transactions of the ASME. 141, 9, 11 p., 091005.

Research output: Contribution to journal › Article

Open Access
File

Accuracy of Diesel Engine Combustion Metrics over the Full Range of Engine Operating Conditions

Dowell, P. G., Akehurst, S. & Burke, R. D., 1 Sep 2019, In : Journal of Engineering for Gas Turbines and Power. 141, 9, 11 p., 091005.

Research output: Contribution to journal › Article

12 Downloads (Pure)

Analysis and Suppression of Induced Voltage Pulsation in DC Winding of Five-Phase Wound-Field Switched Flux Machines

Wu, Z., Zhu, Z. Q., Hua, W., Akehurst, S., Zhu, X., Hu, J., Li, H. & Zhu, J., 28 Aug 2019, In : IEEE Transactions on Energy Conversion. 1 p.

Research output: Contribution to journal › Article

Open Access
File
6 Citations (Scopus)

A review of water injection applied on the internal combustion engine

Zhu, S., Hu, B., Akehurst, S., Copeland, C., Lewis, A., Yuan, H., Kennedy, I., Bernards, J. & Branney, C., 15 Mar 2019, In : Energy Conversion and Management. 184, p. 139-158 20 p.

Research output: Contribution to journal › Review article

Water injection
Internal combustion engines
Engines
Engine cylinders
Combustion knock

Design and Testing a Bespoke Cylinder Head Pulsating Flow Generator for a Turbocharger Gas Stand

Vijayakumar, R., Akehurst, S., Liu, Z., Reyes Belmonte, M., Brace, C., Liu, D. & Copeland, C., 8 Oct 2019, In : Energy. 116291.

Research output: Contribution to journal › Article

Cylinder heads
Gas generators
Turbines
Testing
Gases

Novel approaches to evaluation, modelling and emulation of advanced boosting systems

Akehurst, S., 22 Jan 2019.

Research output: Contribution to conference › Other

Sub-23 nm particulate emissions from a highly boosted GDI engine

Leach, F., Lewis, A., Akehurst, S., Turner, J. & Richardson, D., 9 Sep 2019, In : SAE Technical Paper Series. 2019, p. 1-12 12 p.

Research output: Contribution to journal › Conference article

The effect of fuel composition on particulate emissions from a highly boosted GDI engine - an evaluation of three particulate indices

Akehurst, S., Turner, J., Lewis, A., Leach, F., Stone, R., Cracknell, R., Shankar, V. & Richardson, D., 15 Sep 2019, In : Fuel. 252, p. 598-611 14 p.

Research output: Contribution to journal › Article

Open Access
2018

Accuracy of diesel engine combustion metrics over the full range of engine operating conditions

Dowell, P. G., Burke, R. D. & Akehurst, S., 1 Jan 2018, Emissions Control Systems; Instrumentation, Controls, and Hybrids; Numerical Simulation; Engine Design and Mechanical Development. American Society of Mechanical Engineers (ASME), Vol. 2.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

6 Citations (Scopus)
2 Downloads (Pure)

Alcohol fuels for spark-ignition engines: Performance, efficiency and emission effects at mid to high blend rates for binary mixtures and pure components

Turner, J., Lewis, A., Akehurst, S., Brace, C., Verhelst, S., Vancoillie, J., Sileghem, L., Leach, F. & Edwards, P. P., 1 Jan 2018, In : Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering. 232, 1, p. 36-56 21 p.

Research output: Contribution to journal › Article

Open Access
File
Alcohol fuels
Binary mixtures
Internal combustion engines
Alcohols
Gasoline

Development and Optimisation of an Adaptive Safety Monitor

Akehurst, S., Hillis, A. & Botes, F., 3 Apr 2018.

Research output: Contribution to conference › Paper

Powertrains
Fault detection
Monitoring
Availability
Calibration
2 Citations (Scopus)
53 Downloads (Pure)

Experimental analysis of the V-Charge variable drive supercharger system on a 1.0 L GTDI engine

Hu, B., Akehurst, S., Lewis, A. G. J., Lu, P., Millwood, D., Copeland, C., Chappell, E., De Freitas, A., Shawe, J. & Burtt, D., 1 Mar 2018, In : Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering. 232, 4, p. 449-465 17 p.

Research output: Contribution to journal › Article

Open Access
File
Superchargers
Engines
Transient analysis
Gasoline
Torque
1 Citation (Scopus)

Octane Response of a Highly Boosted Direct Injection Spark Ignition Engine at Different Compression Ratios

Akehurst, S., Lewis, A. & Giles, K., 3 Apr 2018.

Research output: Contribution to conference › Paper

Direct injection
Internal combustion engines
Engines
Antiknock rating
Fuel economy
9 Citations (Scopus)

Particulate emissions from a highly boosted gasoline direct injection engine

Lewis, A., Akehurst, S., Turner, J., Leach, F., Stone, R., Richardson, D., Remmert, S., Cracknell, R. & Campbell, S., 1 Mar 2018, In : International Journal of Engine Research. 19, 3, p. 347-359 13 p.

Research output: Contribution to journal › Article

Open Access
Particulate emissions
Direct injection
Gasoline
Engines
Fuel injection
13 Citations (Scopus)

The effect of oxygenate fuels on PN emissions from a highly boosted GDI engine

Leach, F. C. P., Stone, R., Richardson, D., Turner, J. W. G., Lewis, A., Akehurst, S., Remmert, S., Campbell, S. & Cracknell, R., 1 Aug 2018, In : Fuel. 225, p. 277-286 10 p.

Research output: Contribution to journal › Article

Direct injection
Gasoline
Engines
Air cushion vehicles
Particulate Matter
2017

An improved rate of heat release model for modern high speed diesel engines

Dowell, P., Akehurst, S. & Burke, R., 1 Sep 2017, In : Journal of Engineering for Gas Turbines and Power: Transactions of the ASME. 139, 9, 092805.

Research output: Contribution to journal › Article

Diesel engines
Engines
Fuel injection
Hot Temperature
Hardware
3 Citations (Scopus)
48 Downloads (Pure)

A novel predictive semi-physical feed-forward turbocharging system transient control strategy based on mean-value turbocharger model

Tang, H., Copeland, C., Akehurst, S., Brace, C., Davies, P., Pohorelsky, L., Smith, L. & Capon, G., 1 Oct 2017, In : International Journal of Engine Research. 18, 8, p. 765-775

Research output: Contribution to journal › Article

Open Access
File
Turbines
Geometry
Gasoline
Engines
Powertrains
2 Citations (Scopus)
79 Downloads (Pure)

A real-time capable mixing controlled combustion model for highly diluted conditions

Dowell, P., Akehurst, S. & Burke, R., 15 Aug 2017, In : Energy. 133, p. 1035-1049 15 p.

Research output: Contribution to journal › Article

Open Access
File
Exhaust gas recirculation
Engine cylinders
Dilution
Engines
Charge injection
97 Downloads (Pure)

Characterisation and Optimisation of a Real-Time Diesel engine model

Dowell, P. G., Akehurst, S. & Burke, R. D., 1 Dec 2017, In : Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering. p. 1913-1934 32 p.

Research output: Contribution to journal › Article

Open Access
File
Diesel engines
Engines
Exhaust gas recirculation
Engine cylinders
Hardware

Implementing full electric turbocharging systems on highly boosted gasoline engines

Zhang, Q., Lu, P., Dimitriou, P., Akehurst, S., Copeland, C., Zangeneh, M., Richards, B. & Fowler, G., 2017, ASME Turbo Expo 2017: Turbomachinery Technical Conference and Exposition: Volume 8 :Microturbines, Turbochargers and Small Turbomachines; Steam Turbines. American Society of Mechanical Engineers (ASME), p. V008T26A032 10 p.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Gasoline
Engines
Compressors
Turbines
Internal combustion engines
3 Citations (Scopus)

Influence of Coolant Temperature and Flow Rate, and Air Flow on Knock Performance of a Downsized, Highly Boosted, Direct-Injection Spark Ignition Engine

Asif, M., Giles, K., Lewis, A., Akehurst, S. & Turner, N., 28 Mar 2017, In : SAE Technical Paper Series. 2017, March

Research output: Contribution to journal › Article

Direct injection
Internal combustion engines
Coolants
Flow rate
Electric sparks
1 Citation (Scopus)

Numerical investigation into the performance and efficiency trade-off for a mechanically decoupled electric boosting system

Liu, Y., Burke, R., Akehurst, S. & Zhang, Q., 16 Oct 2017.

Research output: Contribution to conference › Paper

283 Downloads (Pure)

Observations on and potential trends for mechanically supercharging a downsized passenger car engine: a review

Hu, B., Turner, J. W. G., Akehurst, S., Brace, C. & Copeland, C., 1 Mar 2017, In : Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering. 231, 4, p. 435-456 22 p.

Research output: Contribution to journal › Article

Open Access
File
Passenger cars
Superchargers
Engines
Supercharging
Electric load loss
7 Citations (Scopus)

Observations on and potential trends for mechanically supercharging a downsized passenger car engine:a review

Hu, B., Turner, J. W. G., Akehurst, S., Brace, C. & Copeland, C., 1 Mar 2017, In : Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering. 231, 4, p. 435-456 22 p.

Research output: Contribution to journal › Review article

Road bumps for electric cars

Leach, F., Akehurst, S., Brace, C., Busch, I. H., Cairns, A., Davy, M. H., Gavaises, M., Heikal, M., Linne, M., Shayler, P., Stone, R., Taylor, A., Turner, J., Wyszynski, M., Xu, H. & Zhao, J. H., 2 Sep 2017, In : Economist (United Kingdom). 413, 9053

Research output: Contribution to journal › Letter

2016
1 Citation (Scopus)

An improved rate of heat release model for modern high speed diesel engines

Dowell, P. G., Akehurst, S. & Burke, R. D., 1 Jan 2016, ASME 2016 Internal Combustion Engine Fall Technical Conference, ICEF 2016. U. S. A.: American Society of Mechanical Engineers (ASME), p. V001T05a003 16 p.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Diesel engines
Engines
Fuel injection
Hot Temperature
Hardware
1 Citation (Scopus)

A Study on Dynamic Torque Cancellation in a Range Extender Unit

Liu, D., Rodrigues, L., Brace, C., Akehurst, S., Kirkpatrick, G. & Ash, L., 5 Apr 2016.

Research output: Contribution to conference › Paper

Torque
Electric machinery
Engines
Electric losses
Torque control
2 Citations (Scopus)

Development of a Low Cost Production Automotive Engine for Range Extender Application for Electric Vehicles

Agarwal, A., Lewis, A., Brace, C. & Akehurst, S., 5 Apr 2016.

Research output: Contribution to conference › Paper

Electric vehicles
Engines
Fuel economy
Exhaust manifolds
Costs
1 Citation (Scopus)

Fuel efficiency optimization for a divided exhaust period regulated two-stage downsized spark ignition engine

Hu, B., Akehurst, S., Brace, C., Lu, P., Copeland, C. & Turner, J. W. G., 1 May 2016, In : Journal of Engineering for Gas Turbines and Power: Transactions of the ASME. 138, 5, p. 1 - 9 9 p., 051507.

Research output: Contribution to journal › Article

Internal combustion engines
Scavenging
Engines
Brakes
Fuel consumption
12 Citations (Scopus)

Novel approaches to improve the gas exchange process of downsized turbocharged spark-ignition engines: a review

Hu, B., Akehurst, S. & Brace, C., 1 Aug 2016, In : International Journal of Engine Research. 17, 6, p. 595-618 24 p.

Research output: Contribution to journal › Article

Internal combustion engines
Engines
Gases
Pressurization
Superchargers
24 Citations (Scopus)
84 Downloads (Pure)

Stochastic dynamic programming in the real-world control of hybrid electric vehicles

Vagg, C., Akehurst, S., Brace, C. & Ash, L., May 2016, In : IEEE Transactions on Control Systems Technology. p. 853-866

Research output: Contribution to journal › Article

File
Powertrains
Hybrid vehicles
Dynamic programming
Dynamometers
Controllers
2 Citations (Scopus)

Thermal management of a low cost range extender for electric vehicles

Agarwal, A., Rodrigues, L., Liu, D., Lewis, A. G. J., Akehurst, S., Brace, C. J., Kirkpatrick, G. & Ash, L., 2016, Proceedings of the 6th Hybrid and Electric Vehicles Conference (HEVC 2016). Institution of Engineering and Technology, p. 16

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Electric vehicles
Temperature control
Coolants
Engines
Costs
2015
7 Citations (Scopus)

A New De-throttling Concept in a Twin-Charged Gasoline Engine System

Hu, B., Copeland, C., Lu, P., Akehurst, S., Brace, C., Turner, J. W. G., Romagnoli, A. & Martinez-Botas, R., 14 Apr 2015, In : SAE International Journal of Engines. 8, 4, p. 1553-1561

Research output: Contribution to journal › Article

Superchargers
Gasoline
Engines
Speed control
Engine cylinders
13 Citations (Scopus)

A review of the application of variable geometry turbines to the downsized gasoline engine

Tang, H., Pennycott, A., Akehurst, S. & Brace, C., Oct 2015, In : International Journal of Engine Research. 16, 6, p. 810-825

Research output: Contribution to journal › Article

Fuel efficiency optimization for a divided exhaust period regulated two-stage downsized SI engine

Hu, B., Akehurst, S., Brace, C., Lu, P., Copeland, C. D. & Turner, J. W. G., Jun 2015, Microturbines, Turbochargers and Small Turbomachines; Steam Turbines. U. S. A.: American Society of Mechanical Engineers (ASME), Vol. 8. p. V008T23A012 10 p.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Scavenging
Engines
Intake valves
Engine cylinders
Electric sparks
4 Citations (Scopus)

Improving Heat Transfer and Reducing Mass in a Gasoline Piston using Additive Manufacturing

Copeland, C., Reyes Belmonte, M., Drummond, H., Hopkins, G., Schmieder, A., Bredda, S. W. & Akehurst, S., 2015, SAE Technical Paper. SAE International, 2015-01-0505

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

3D printers
Pistons
Gasoline
Heat transfer
Engines
4 Citations (Scopus)

Modelling the Performance of the Torotrak V-Charge Variable Drive Supercharger System on a 1.0L GTDI - Preliminary Simulation Results

Hu, B., Tang, H., Akehurst, S., De Freitas, A., Burtt, D. & Shawe, J., 1 Sep 2015, In : SAE Technical Papers. 2015-September, September

Research output: Contribution to journal › Article

Superchargers
Clutches
Engines
Transient analysis
Compressors
12 Citations (Scopus)
63 Downloads (Pure)

Novel approaches to improve the gas exchange process of downsized turbocharged SI engines – A review

Hu, B., Akehurst, S. & Brace, C., 2015, In : International Journal of Engine Research. p. 1 - 24 24 p.

Research output: Contribution to journal › Article

Open Access
File
Engines
Pressurization
Gases
Air
1 Citation (Scopus)

Predicting the nitrogen oxides emissions of a diesel engine using neural networks

Zhang, Q., Pennycott, A., Burke, R., Akehurst, S. & Brace, C., 14 Apr 2015, SAE Technical Papers. SAE International

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Nitrogen oxides
Diesel engines
Neural networks
Engines
Calibration
4 Citations (Scopus)

Review of turbocharger mapping and 1D modelling inaccuracies with specific focus on two-stage systems

Avola, C., Copeland, C., Duda, T., Burke, R., Akehurst, S. & Brace, C., 2 Jul 2015, SAE 12th International Conference on Engines & Vehicles (ICE), 2015. SAE International, 18 p. 2015-24-2523

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Compressors
Turbines
Engines
Powertrains
Internal combustion engines

Study on the Effects of EGR Supply Configuration on Cylinder-to-Cylinder Dispersion and Engine Performance Using 1D-3D Cosimulation

Dimitriou, P., Burke, R., Copeland, C. & Akehurst, S., 17 Nov 2015.

Research output: Contribution to conference › Paper

Exhaust gas recirculation
Engine cylinders
Engines
Air intakes
Turbulence
3 Citations (Scopus)

Study on the Effects of EGR Supply Configuration on Cylinder-to-Cylinder Dispersion and Engine Performance Using 1D-3D Co-Simulation

Dimitriou, P., Burke, R., Copeland, C. D. & Akehurst, S., 17 Nov 2015, In : SAE Technical Papers. 2015

Research output: Contribution to journal › Conference article

Exhaust gas recirculation
Engine cylinders
Engines
Air intakes
Turbulence
10 Citations (Scopus)

SuperGen on ultraboost: variable-speed centrifugal supercharging as an enabling technology for extreme engine downsizing

Turner, J. W. G., Popplewell, A., Marshall, D. J., Johnson, T. R., Barker, L., King, J., Martin, J., Lewis, A. G. J., Akehurst, S., Brace, C. J. & Copeland, C. D., 14 Apr 2015, In : SAE International Journal of Engines. 8, 4

Research output: Contribution to journal › Article

Superchargers
Engines
Fuel economy
Crankshafts
Transient analysis
4 Citations (Scopus)
79 Downloads (Pure)

The potential of catalysed exhaust gas recirculation to improve high-load operation in spark ignition engines

Parsons, D., Akehurst, S. & Brace, C., Jun 2015, In : International Journal of Engine Research. 16, 4, p. 592-605

Research output: Contribution to journal › Article

Open Access
File
Exhaust gas recirculation
Internal combustion engines
Gases
Combustion knock
Calorific value
2014
13 Citations (Scopus)

1-D simulation study of divided exhaust period for a highly downsized turbocharged SI engine - scavenge valve optimization

Hu, B., Akehurst, S., Brace, C., Copeland, C. & Turner, J., 1 Apr 2014, In : SAE International Journal of Engines. 7, 3, p. 1443-1452

Research output: Contribution to journal › Article

Engines
Exhaust gases
Turbines
Gases
Combustion knock
4 Citations (Scopus)

A new turboexpansion concept in a twin-charged engine system

Hu, B., Copeland, C., Brace, C., Akehurst, S., Romagnoli, A., Martinez-Botas, R. & Turner, J., 13 Oct 2014, SAE Technical Paper. SAE International, 2014-01-2596

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Engines
Superchargers
Turbines
Compressors
Temperature
8 Citations (Scopus)

Assessment of supercharging boosting component for heavily downsized gasoline engines

Romagnoli, A., Wan-Salim, W. S. I., Gurunathan, B. A., Martinez-Botas, R. F., Turner, J. W. G., Luard, N., Jackson, R., Matteucci, L., Copeland, C., Akehurst, S., Lewis, A. G. J. & Brace, C. J., 1 Jan 2014, Institution of Mechanical Engineers - 11th International Conference on Turbochargers and Turbocharging. Woodhead Publishing Ltd., p. 13-26 14 p.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Gasoline
Engines
Superchargers
Powertrains
Supercharging

Assessment of the supercharging boosting component for heavily downsized gasoline engines

Copeland, C., Romagnoli, A., Wan-Salim, W. B., Gurunathan, B., Martinez-Botas, R., Turner, J., Luard, N., Jackson, R., Matteucci, L., Brace, C., Akehurst, S. & Lewis, A., 2014, IMECHE Turbocharger and Turbocharging Proceedings, 2014. IMechE Conference Transactions

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Gasoline
Engines
Superchargers
Powertrains
Supercharging
2 Citations (Scopus)

Characterisation of torque converter dampers: A novel method for exciting dampers through torque pulsation generation

Aurora-Smith, A., Akehurst, S., Brace, C., Bannister, C., Wicksteed, B. & Biggs, S., 1 Jan 2014.

Research output: Contribution to conference › Paper

10 Citations (Scopus)
95 Downloads (Pure)

Dynamic modelling of diesel engine emissions using the parametric Volterra series

Burke, R. D., Baumann, W., Akehurst, S. & Brace, C. J., 1 Feb 2014, In : Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering. 228, 2, p. 164-179 16 p.

Research output: Contribution to journal › Article

Open Access
File
Diesel engines
Engines
Exhaust gas recirculation
Powertrains
Dynamometers