Auto-ignition and combustion characteristics of n-butanol triggered by low- and high-temperature reactions of premixed n-heptane
Auto-ignition and combustion characteristics of n-butanol triggered by low- and high-temperature reactions of premixed n-heptane
复制标题
预混正庚烷低温和高温反应引发正丁醇自燃及燃烧特性
DOI：
10.1016/j.fuel.2013.05.037
复制
发表时间：
2013-10
期刊：
影响因子：
7.4
通讯作者：
Huang Zhen
中科院分区：
文献类型：
--
作者：
Lu Xingcai;Yang Zheng;Zhou Xiaoxin;Huang Zhen
This paper investigates the auto-ignition mechanism, combustion process, and emissions characteristics ofn-butanol in active-thermal atmospheres. On a single-cylinder engine, the active-thermal atmosphere created by low- and high-temperature reactions of premixedn-heptane from intake port was used to trigger and control the ignition and combustion ofn-butanol, which is directly injected into the combustion chamber near the top dead center (TDC). The experimental results reveal that the autoignition ofn-butanol can be classified into three modes, namely, thermal atmosphere combustion, active atmosphere combustion, and active-thermal atmosphere combustion, depending on in-cylinder gas temperature and radical concentrations just before injection. The ignition timing of the overall combustion event was primarily determined by the equivalence ratio of premixedn-heptane, but was lightly affected byn-butanol quenching and charge cooling. Then, it can be flexibly controlled by modulating the directly and port-injected fuel equivalence ratios. In one combustion cycle,n-butanol ignited and burned aftern-heptane; this combustion event can be referred to as dual-fuel sequential combustion (DFSC). Forn-heptane/n-butanol dual-fuel sequential combustion events, ultra-low NOx and almost smoke-free emissions were observed over a wide operating range. Even with a large premixed fuel equivalence ratio, smoke-free and low-NOx emissions can be achieved simultaneously by selecting an appropriate directly injected fuel equivalence ratio.
登录
查看更多内容
DOI：
10.1016/j.proci.2010.06.163
发表时间：
2011
期刊：
--
影响因子：
--
作者：
P. Veloo;F. Egolfopoulos
通讯作者：
P. Veloo;F. Egolfopoulos
DOI：
10.1115/1.3043810
发表时间：
2009-05
影响因子：
1.5
作者：
T. Wallner;S. Miers;Steven S. McConnell
通讯作者：
T. Wallner;S. Miers;Steven S. McConnell
DOI：
10.4271/2009-24-0094
发表时间：
2009-09
期刊：
--
影响因子：
--
作者：
P. Saisirirat;F. Foucher;S. Chanchaona;C. Mounaïm-Rousselle
通讯作者：
P. Saisirirat;F. Foucher;S. Chanchaona;C. Mounaïm-Rousselle
影响因子：
7.4
作者：
F. Lujaji;L. Kristóf;Á. Bereczky;M. Mbarawa
通讯作者：
F. Lujaji;L. Kristóf;Á. Bereczky;M. Mbarawa
DOI：
10.1016/j.proci.2010.05.084
发表时间：
2011
期刊：
--
影响因子：
--
作者：
Wei Liu;A. P. Kelley;C. Law
通讯作者：
Wei Liu;A. P. Kelley;C. Law