Pressure Oscillations Generated by Knocking Combustion of C2H2 in a Constant Volume Vessel

DOI

10.2991/icreet-16.2017.33How to use a DOI?

Keywords

Constant Volume Vessel, Knocking Combustion, Pressure Oscillation.

Abstract

Onset of super-knock in highly intensified spark ignition engines poses a great threat to the reliability. In this context, An approaching attempt was exerted on the initial condition of C2H2-O2-N2 mixtures ignited within a constant volume vessel, in order to determine the critical condition of knock and response to oxygen ratio, acetylene ratio and mixture density. Results show that with a low acetylene content, sole elevation of oxygen doesn't necessarily lead to knock onset. On the other hand, with oxygen content fixed to a sufficient value, elevation of acetylene content results in louder combustion noise and when it approaches the stoichiometry ratio, auto-ignition happens in the unburnt far end and strong oscillation appears on the combustion pressure curve. Surprisingly, elevation of mixture density has no significant effect on knock propensity.

Copyright

© 2017, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Sheng Huang
AU  - Ronghua Huang
PY  - 2017/03
DA  - 2017/03
TI  - Pressure Oscillations Generated by Knocking Combustion of C2H2 in a Constant Volume Vessel
BT  - Proceedings of the 2016 4th International Conference on Renewable Energy and Environmental Technology (ICREET 2016)
PB  - Atlantis Press
SP  - 192
EP  - 197
SN  - 2352-5401
UR  - https://doi.org/10.2991/icreet-16.2017.33
DO  - 10.2991/icreet-16.2017.33
ID  - Huang2017/03
ER  -