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Analysis of the particulate emissions and combustion performance of a direct injection spark ignition engine using hydrogen and gasoline mixtures

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journal contribution
posted on 18.01.2016, 11:06 by Huayong ZhaoHuayong Zhao, Richard Stone, Lei Zhou
Three different fractions (2%, 5%, and 10% of stoichiometric, or 2.38%, 5.92%, and 11.73% by energy fraction) of hydrogen were aspirated into a gasoline direct injection engine under two different load conditions. The base fuel was 65% iso-octane, and 35% toluene by volume fraction. Ignition sweeps were conducted for each operation point. The pressure traces were recorded for further analysis, and the particulate emission size distributions were measured using a Cambustion DMS500. The results indicated a more stable and faster combustion as more hydrogen was blended. Meanwhile, a substantial reduction in particulate emissions was found at the low load condition (more than 95% reduction either in terms of number concentration or mass concentration when blending 10% hydrogen). Some variation in the results occurred at the high load condition, but the particulate emissions were reduced in most cases, especially for nucleation mode particulate matter. Retarding the ignition timing generally reduced the particulate emissions. An engine model was constructed using the Ricardo WAVE package to assist in understanding the data. The simulation reported a higher residual gas fraction at low load, which explained the higher level of cycle-by-cycle variation at the low load.

History

School

  • Mechanical, Electrical and Manufacturing Engineering

Published in

International Journal of Hydrogen Energy

Volume

35

Issue

10

Pages

4676 - 4686

Citation

ZHAO, H., STONE, R. and ZHOU, L., 2010. Analysis of the particulate emissions and combustion performance of a direct injection spark ignition engine using hydrogen and gasoline mixtures. International Journal of Hydrogen Energy, 35(10), pp. 4676-4686.

Publisher

Published by Elsevier

Version

AM (Accepted Manuscript)

Publisher statement

This work is made available according to the conditions of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) licence. Full details of this licence are available at: https://creativecommons.org/licenses/by-nc-nd/4.0/

Publication date

2010

Notes

This paper was accepted for publication in the journal International Journal of Hydrogen Energy and the definitive published version is available at: http://dx.doi.org/10.1016/j.ijhydene.2010.02.087

ISSN

0360-3199

Language

en