Version 1
: Received: 23 May 2024 / Approved: 24 May 2024 / Online: 24 May 2024 (13:39:59 CEST)
How to cite:
HU, Z.; LI, M.; MIAO, X.; WANG, Z.; TANG, Y.; WU, X.; YU, W.; KANG, Z.; DENG, J. Influence of Ambient Pressure on the Jet-Ignition Combustion Performance and Flame Propagation Characteristics in a Constant Volume Combustion Chamber. Preprints2024, 2024051648. https://doi.org/10.20944/preprints202405.1648.v1
HU, Z.; LI, M.; MIAO, X.; WANG, Z.; TANG, Y.; WU, X.; YU, W.; KANG, Z.; DENG, J. Influence of Ambient Pressure on the Jet-Ignition Combustion Performance and Flame Propagation Characteristics in a Constant Volume Combustion Chamber. Preprints 2024, 2024051648. https://doi.org/10.20944/preprints202405.1648.v1
HU, Z.; LI, M.; MIAO, X.; WANG, Z.; TANG, Y.; WU, X.; YU, W.; KANG, Z.; DENG, J. Influence of Ambient Pressure on the Jet-Ignition Combustion Performance and Flame Propagation Characteristics in a Constant Volume Combustion Chamber. Preprints2024, 2024051648. https://doi.org/10.20944/preprints202405.1648.v1
APA Style
HU, Z., LI, M., MIAO, X., WANG, Z., TANG, Y., WU, X., YU, W., KANG, Z., & DENG, J. (2024). Influence of Ambient Pressure on the Jet-Ignition Combustion Performance and Flame Propagation Characteristics in a Constant Volume Combustion Chamber. Preprints. https://doi.org/10.20944/preprints202405.1648.v1
Chicago/Turabian Style
HU, Z., Zhe KANG and Jun DENG. 2024 "Influence of Ambient Pressure on the Jet-Ignition Combustion Performance and Flame Propagation Characteristics in a Constant Volume Combustion Chamber" Preprints. https://doi.org/10.20944/preprints202405.1648.v1
Abstract
Based on a constant volume combustion chamber, the initial ambient pressure effect on combustion performance and flame propagation of the active and passive pre-chamber ignition systems were studied. Compared with the passive pre-chamber, the active pre-chamber can significantly expand the lean combustion limit, enhance the ignition and combustion performance, and speed up the combustion of the main combustion chamber. At slightly lean combustion conditions, the heat release performance has a positive correlation with the initial ambient pressure. As the premixed λ increases, the heat release performance and the initial ambient pressure begin to become negatively correlated. Ignition delay can be minimized by controlling the excess air coefficient in the pre-chamber close to the stoichiometric ratio. The high ambient pressure in the constant volume chamber greatly reduces the mixture entrainment ability of the jet flame at lean combustion conditions, thereby reducing the combustion speed and peak heat release rate.
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
,
*
