Improving idle performance of a hydrogen-gasoline rotary engine at stoichiometric condition
Improving idle performance of a hydrogen-gasoline rotary engine at stoichiometric condition
复制标题
提高化学计量条件下氢汽油转子发动机的怠速性能
DOI：
10.1016/j.ijhydene.2017.01.220
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发表时间：
2017-04
影响因子：
7.2
通讯作者：
Cong Xiaoyu
中科院分区：
文献类型：
--
作者：
Su Teng;Ji Changwei;Wang Shuofeng;Shi Lei;Yang Jinxin;Cong Xiaoyu
汽油转子发动机由于其燃烧室的结构与传统发动机不同，在怠速工况下容易发生不完全燃烧，从而增加了有害气体的排放。掺氢可以改善火花点火发动机的怠速燃烧和排放特性。为了研究氢气对汽油转子发动机怠速性能的影响，开发了一台采用电子点火控制和汽油和氢气进气道喷射系统的汽油转子发动机。发明了一种混合动力电子控制单元来管理火花、燃料喷射、总进气的氢气体积分数和总过量空气比。在本研究中，发动机在2400 rpm的怠速和化学计量条件下运行。氢气体积分数从0%逐渐变化到6.8%。结果表明，加氢后转速变异系数和燃料能量流量均减小。氢气的加入缩短了火焰的发展和传播周期。由于氢气的绝热火焰温度较高，加氢后燃烧室的峰值温度有所提高。汽油中加入氢气后，冷损降低.当氢气体积分数从0%提高到6.8%时，HC、CO和CO2排放分别降低了79.4%、86.0%和25.9%。
Because of the unusual structure chamber compared with traditional engines, gasoline rotary engine always encounters partial burning and increased noxious emissions at the idle. Hydrogen-addition could enhance the characteristics of combustion and emissions of sparked-ignited engines at idle. A modified gasoline rotary engine with electronic spark control and fuel (gasoline and hydrogen) port-injection system was developed to study the impact of hydrogen-addition on idle performance of a gasoline rotary engine. A hybrid electronic control unit was invented to manage the spark, fuel injection, hydrogen volume fraction of the total intake and overall excess air ratio. In this study, the engine was operating at the idle speed of 2400 rpm and stoichiometric conditions. The hydrogen volume fraction was gradually varied from 0% to 6.8%. Results showed that the coefficient of variation in speed and fuel energy flow rate were both decreased after the hydrogen-addition. Flame development and propagation periods were shortened owning to hydrogen-addition. The peak chamber temperature was enhanced after the hydrogen-addition due to the high adiabatic flame temperature of hydrogen. Cooling loss was dropped when hydrogen was added into gasoline. HC, CO and CO2emissions were reduced by 79.4%, 86.0% and 25.9% when hydrogen volume fraction were raised from 0% to 6.8%.
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影响因子：
7.2
作者：
Ji, Changwei;Wang, Shuofeng
通讯作者：
Wang, Shuofeng
影响因子：
7.2
作者：
M. Rahman;K. Hamada;A. Aziz
通讯作者：
M. Rahman;K. Hamada;A. Aziz
影响因子：
9
作者：
Stijn Broekaert;J. Demuynck;T. D. Cuyper;M. D. Paepe;S. Verhelst
通讯作者：
Stijn Broekaert;J. Demuynck;T. D. Cuyper;M. D. Paepe;S. Verhelst
影响因子：
7.2
作者：
Sunyoup Lee;Chang-gi Kim;Y. Choi;Gihun Lim;Cheolwoong Park
通讯作者：
Sunyoup Lee;Chang-gi Kim;Y. Choi;Gihun Lim;Cheolwoong Park
DOI：
10.4271/881602
发表时间：
1988-10
期刊：
SAE transactions
影响因子：
--
作者：
J. Abraham;F. Bracco
通讯作者：
J. Abraham;F. Bracco