CLC number: TK16
On-line Access: 2024-08-27
Received: 2023-10-17
Revision Accepted: 2024-05-08
Crosschecked: 2011-01-04
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Wei Feng, Zhi-jun Wu, Jun Deng, Li-guang Li. Auto-ignition and stabilization mechanism of diluted H2 jet flame[J]. Journal of Zhejiang University Science A, 2011, 12(2): 154-161.
@article{title="Auto-ignition and stabilization mechanism of diluted H2 jet flame",
author="Wei Feng, Zhi-jun Wu, Jun Deng, Li-guang Li",
journal="Journal of Zhejiang University Science A",
volume="12",
number="2",
pages="154-161",
year="2011",
publisher="Zhejiang University Press & Springer",
doi="10.1631/jzus.A1000135"
}
%0 Journal Article
%T Auto-ignition and stabilization mechanism of diluted H2 jet flame
%A Wei Feng
%A Zhi-jun Wu
%A Jun Deng
%A Li-guang Li
%J Journal of Zhejiang University SCIENCE A
%V 12
%N 2
%P 154-161
%@ 1673-565X
%D 2011
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.A1000135
TY - JOUR
T1 - Auto-ignition and stabilization mechanism of diluted H2 jet flame
A1 - Wei Feng
A1 - Zhi-jun Wu
A1 - Jun Deng
A1 - Li-guang Li
J0 - Journal of Zhejiang University Science A
VL - 12
IS - 2
SP - 154
EP - 161
%@ 1673-565X
Y1 - 2011
PB - Zhejiang University Press & Springer
ER -
DOI - 10.1631/jzus.A1000135
Abstract: The controllable active thermo-atmosphere combustor (CATAC) has become a utilizable and effective facility because it benefits the optical diagnostics and modeling. This paper presents the modeling research of the auto-ignition and flames of the H2/N2 (H2/CH4/N2, or H2/H2O2/N2) mixture on a CATAC, and shows curves varying with temperatures of auto-ignition delay, the height of the site of auto-ignition of lifted flames, and flame lift-off height. The results of auto-ignition delay and the lift-off height are compared the experimental results to validate the model. A turning point can be seen on each curve, identified with criterion temperature. It can be concluded that when the co-flow temperature is higher than the criterion temperature, the auto-ignition and lifted flame of the mixture are not stable. Conversely, below the criterion temperature, the mixture will auto-ignite in a stable fashion. stabilization mechanisms of auto-ignition and lifted flames are analyzed in terms of the criterion temperature.
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