Analysis of the dynamic characteristics of combustion instabilities in a pre-mixed lean-burn natural gas engine
Analysis of the dynamic characteristics of combustion instabilities in a pre-mixed lean-burn natural gas engine
复制标题
预混稀薄燃烧天然气发动机燃烧不稳定性动态特性分析
DOI:
10.1016/j.apenergy.2016.09.037
复制
发表时间:
2016-09
期刊:
影响因子:
11.2
通讯作者:
Xiu-Zhen Ma
中科院分区:
文献类型:
--
作者:
Shun-Liang Ding;Richard J. Brown;Norbert Marwan;Xiu-Zhen Ma
The cyclic combustion instabilities in a pre-mixed lean-burn natural gas engine have been studied. Using non-linear embedding theory, recurrence plots (RPs) and recurrence qualification analysis (RQA), the hidden rhythms and dynamic complexity of a combustion system in high dimensional phase space for each gas injection timing (GIT) have been examined, and the possible source of combustion instabilities has been identified based on 3-D computational fluid dynamics (CFD) simulation. The results reveal that for lower engine load, with the decrease of mixture concentration, the combustion instability and complexity of combustion system become more sensitive to the variation of GITs. Richer mixture and earlier (GIT < 30°CA ATDC) or delayed (GIT > 90°CA ATDC) gas injection will lead to more stable combustion, regular oscillatory and low complexity of combustion system, while leaner mixture together with the medium GITs (from 30 to 90°CA ATDC) easily leads to increase of combustion fluctuations, time irreversibility and dynamic complexity of combustion system. When GITs are changed, the combustion instabilities of pre-mixed lean-burn natural gas engines are from in-cylinder unreasonable stratification of mixture concentration and turbulent motion.
登录
查看更多内容
DOI:
10.4271/700488
发表时间:
1970-02
期刊:
--
影响因子:
--
作者:
R. K. Barton;D. Kenemuth;S. Lestz;W. E. Meyer
通讯作者:
R. K. Barton;D. Kenemuth;S. Lestz;W. E. Meyer
影响因子:
6.4
作者:
A. Sen;S. K. Ash;Bin Huang;Zuo-hua Huang
通讯作者:
A. Sen;S. K. Ash;Bin Huang;Zuo-hua Huang
DOI:
10.4271/971708
发表时间:
1997-05
期刊:
SAE transactions
影响因子:
--
作者:
J. Hiltner;M. Samimy
通讯作者:
J. Hiltner;M. Samimy
影响因子:
11.2
作者:
Hong Zhang;X. J. Han;B. Yao;G. X. Li
通讯作者:
Hong Zhang;X. J. Han;B. Yao;G. X. Li
影响因子:
29.5
作者:
H. MacLean;L. Lave
通讯作者:
H. MacLean;L. Lave