Hydrogen and oxygen fuel enrichment effects on a HD diesel engine

Monemian, Emad; Cairns, Alasdair; Pedrozo, V.

Abstract

Implementing emission regulations in the transport sector is enforcing manufacturers to improve performance of Heavy Duty (HD) vehicles as they are accountable for 25% of CO2 emissions within EU. The currently reported research was involved with evaluating partial replacement of hydrogen with diesel fuel experimentally and intake air enrichment with oxygen in a heavy-duty diesel single cylinder engine. Fumigation of hydrogen was done into the intake system at two particular engine loads (6 and 12 bar IMEPn). Indicated efficiency was increased up to 4.6% at 6 bar IMEPn and 2.4% at 12 bar IMEPn, while reducing CO2 emissions by 58% and 32% at 6 and 12 bar IMEPn respectively. Applying diesel pre-injection was required in order to mitigate the high pressure rise rates known as combustion noise. Furthermore, intake air enrichment with oxygen resulted in faster combustion process. This could curb soot and minimised CO emissions to the detriment of NOx increase.

Citation

Monemian, E., Cairns, A., & Pedrozo, V. (2017). Hydrogen and oxygen fuel enrichment effects on a HD diesel engine. International Journal of Engine Research, 47(47),

• Journal Article Type: Article
• Acceptance Date: Feb 21, 2018
• Publication Date: Jul 31, 2017
• Deposit Date: May 14, 2018
• Publicly Available Date: May 14, 2018
• Journal: Journal of Engine Research
• Print ISSN: 1468-0874
• Publisher: SAGE Publications
• Peer Reviewed: Peer Reviewed
• Volume: 47
• Issue: 47
• Keywords: Hydrogen; Oxygen; HD diesel engine; CO2
• Public URL: https://nottingham-repository.worktribe.com/output/875071
• Publisher URL: http://engineresearch.ir/article-1-608-en.html