Research Repository

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A study of hydrous ethanol combustion in an optical central direct injection spark ignition engine (2019)
Journal Article
Koupaie, M. M., Cairns, A., Vafamehr, H., & Lanzanova, T. D. M. (2019). A study of hydrous ethanol combustion in an optical central direct injection spark ignition engine. Applied Energy, 237, 258-269. doi:10.1016/j.apenergy.2018.12.093

The aim of this experimental work was to improve understanding of the influence of hydrous ethanol on combustion in an engine demonstrating a tendency for biased flame migration towards the hotter exhaust walls as often reported for typical modern pe... Read More

Cyclically resolved flame and flow imaging in an alcohol fuelled SI engine (2018)
Journal Article
Moslemin Koupaie, M., Cairns, A., Xia, J., Vafamehr, H., & Lanzanova, T. (2019). Cyclically resolved flame and flow imaging in an alcohol fuelled SI engine. Fuel, 237, (874-887). doi:10.1016/j.fuel.2018.10.075. ISSN 0016-2361

The work was concerned with improving understanding of the interaction of the bulk in-cylinder flow with turbulent premixed flame propagation when using varied fuels including iso-octane, ethanol or butanol. The experiments were performed in a single... Read More

Study on pollutants formation under knocking combustion conditions using an optical single cylinder SI research engine (2018)
Journal Article
Karvountzis-Kontakiotis, A., Vafamehr, H., Cairns, A., & Peckham, M. (2018). Study on pollutants formation under knocking combustion conditions using an optical single cylinder SI research engine. Energy, 158, doi:10.1016/j.energy.2018.06.063. ISSN 0360-5442

The aim of this experimental study is to investigate the pollutants formation and cyclic emission variability under knocking combustion conditions. A great number of studies extensively describe the phenomenon of knock and its combustion characterist... Read More

A study of transient over-fuelling during heavy knock in an optical spark ignition engine (2018)
Journal Article
Vafamehr, H., Cairns, A., & Ebne-Abbasi, H. (in press). A study of transient over-fuelling during heavy knock in an optical spark ignition engine. International Journal of Powertrains, 7(1/2/3), doi:10.1504/IJPT.2018.10011458. ISSN 1742-4267

The work was concerned with improving understanding of the effects of transient over-fuelling during heavy knocking combustion in modern spark ignition engines. The single cylinder engine employed included full bore overhead optical access capable of... Read More

Evaluation of intake charge hydrogen enrichment in a heavy-duty diesel engine (2017)
Journal Article
Monemian, E., Cairns, A., Gilmore, M., Newman, D., & Scott, K. (in press). Evaluation of intake charge hydrogen enrichment in a heavy-duty diesel engine. Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering, doi:10.1177/0954407017738375. ISSN 0954-4070

Concerns over CO2 emissions and global warming continue to enforce the transport sector to reduce the fuel consumption of heavy duty diesel goods vehicles as one major contributor of CO2. Such powertrain platforms look set to remain the dominant sour... Read More

The competing chemical and physical effects of transient fuel enrichment on heavy knock in an optical spark ignition engine (2016)
Journal Article
Vafamehr, H., Cairns, A., Sampson, O., & Mohammadmohsen Moslemin, K. (2016). The competing chemical and physical effects of transient fuel enrichment on heavy knock in an optical spark ignition engine. Applied Energy, 179, doi:10.1016/j.apenergy.2016.07.038. ISSN 0306-2619

The work was concerned with improving understanding of the chemical and physical trade-offs when employing transient over-fuelling to control auto-ignition in gasoline spark ignition engines under knock intensities not usually tolerated in optical en... Read More