Reducing HC emissions from a gasoline engine at the starting conditions through activated carbon adsorption
Reducing HC emissions from a gasoline engine at the starting conditions through activated carbon adsorption
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通过活性炭吸附减少汽油发动机启动时的 HC 排放
DOI：
10.1016/j.applthermaleng.2016.10.107
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发表时间：
2017-02
影响因子：
6.4
通讯作者：
Cong Xiaoyu
中科院分区：
文献类型：
--
作者：
Ji Changwei;Xu Puyan;Wang Shuofeng;Feng Yu;Su Teng;Yu Menghui;Cong Xiaoyu
本工作的总体目的是研究活性炭材料的吸附特性，以降低汽油机在起动条件下的HC排放。选择了3种活性炭材料，分别在25、35、45和55 °C的冷却液温度下，对起动后80 s内的HC排放进行吸附。实验结果表明，活性炭材料的总HC吸附率随冷却剂温度的升高而降低。在25 °C冷却液温度下，蜂窝活性炭、泡沫活性炭和纤维活性炭的总HC吸附率分别为68.6%、66.1%和53.5%。泡沫活性炭的脱附现象较明显，且随着冷却剂温度的升高脱附现象加剧。在此基础上，进一步研究了蜂窝活性炭在发动机反复起动工况下的吸附性能。在重复启动条件下，活性炭蜂窝对HC的总吸附率随吸附次数的增加而降低。在重复启动条件下，前三次的总HC吸附效率分别为76.4%、63.7%和54.0%。结果表明，吸附过程可分为3个阶段，即快速吸附阶段、中间吸附阶段和缓慢吸附阶段。
The general purpose of this work is to examine the adsorption characteristics of activated carbon materials for reducing HC emissions from the gasoline engine under starting conditions. Three kinds of activated carbon materials were selected to adsorb HC emissions within 80 s from the onset of starting at different coolant temperatures of 25, 35, 45 and 55 °C, respectively. The experimental results showed that the total HC adsorption rates of activated carbon materials declined with the increase of coolant temperatures. The total HC adsorption rates of activated carbon honeycomb, foams and fibers were 68.6%, 66.1% and 53.5% under the coolant temperature of 25 °C. The early desorption was found for activated carbon foams, which was getting severe with the increase of coolant temperatures. Then, the adsorption performance of activated carbon honeycomb was further investigated at the repeated engine starting conditions. Under the repeated starting conditions, the total HC adsorption rates of activated carbon honeycomb decreased with the increase of adsorption times in the test. The total HC adsorption efficiencies of the first three times under repeated starting conditions were 76.4%, 63.7% and 54.0%, respectively. The results showed that the adsorption processes could be divided into three phases based on the adsorption characteristics, which were rapid adsorption phase, interim adsorption phase and slow adsorption phase, respectively.
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影响因子：
7.2
作者：
Bo Zhang;C. Ji;Shuofeng Wang;Yuchen Xiao
通讯作者：
Bo Zhang;C. Ji;Shuofeng Wang;Yuchen Xiao
DOI：
10.4271/2004-01-1273
发表时间：
2004-03
影响因子：
11.1
作者：
H. Yamazaki;Tetsuo Endo;M. Ueno;Satoshi Sugaya
通讯作者：
H. Yamazaki;Tetsuo Endo;M. Ueno;Satoshi Sugaya
影响因子：
5
作者：
Lan Li;Yunshan Ge;Mingda Wang;Jiaqiang Li;Zihang Peng;Yanan Song;Liwei Zhang
通讯作者：
Lan Li;Yunshan Ge;Mingda Wang;Jiaqiang Li;Zihang Peng;Yanan Song;Liwei Zhang
DOI：
10.4271/982645
发表时间：
1998-10
期刊：
--
影响因子：
--
作者：
Yunfei Luan;N. Henein
通讯作者：
Yunfei Luan;N. Henein
影响因子：
7.2
作者：
Shuofeng Wang;C. Ji;Bo Zhang
通讯作者：
Shuofeng Wang;C. Ji;Bo Zhang