Reducing the idle speed of a gasoline rotary engine with hydrogen addition
Reducing the idle speed of a gasoline rotary engine with hydrogen addition
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通过加氢降低汽油转子发动机的怠速
DOI：
10.1016/j.ijhydene.2017.07.156
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发表时间：
2017-09
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
对燃用氢气和汽油混合燃料的旋转式发动机的怠速性能进行了试验研究。怠速从原来的2400降到2300和2200rpm，氢能百分比(βH2)从0%到35.0%变化。试验结果表明，循环波动随怠速的降低而增大，随βH2的增大而减小。降低怠速和提高βH_2均能有效降低发动机油耗。燃料总能量流率从2400mJ/min和βH2=35.0%时的22.4MJ/h有效地降低到2200rpm和βH2=35.0%时的20.01mJ/h。通过增加βH2，缩短了燃烧持续期。HC和CO排放随βH2的增加而下降，但在降低怠速后有所增加。降低怠速和添加氢气后，CO2排放有所降低。
This paper presented an experimental study about the idle performance of a rotary engine fueled with hydrogen and gasoline blends. The idle speed was reduced from original 2400 to 2300 and 2200 rpm, and hydrogen energy percentage (βH2) was varied from 0% to 35.0%. Test results showed that cyclic variation was raised with the decrease of idle speed whereas reduced with the increase ofβH2. Both decreasing idle speed and increasingβH2were effective on reducing engine fuel consumption. Total fuel energy flow rate was effectively dropped from 22.4 MJ/h under “2400 rpm andβH2= 0%” to 20.01 MJ/h under “2200 rpm andβH2= 35.0%”. Combustion duration was reduced through increasingβH2. HC and CO emissions were dropped with the increase ofβH2, but increased after reducing idle speed. CO2emission was decreased after reducing idle speed and adding hydrogen.
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