Study of cycle-by-cycle variations of a spark ignition engine fuelled with natural gas-hydrogen blends (PDF)
发布时间：2025-04-30
点击次数：
- 发布时间：
- 2025-04-30
- 论文名称：
- Study of cycle-by-cycle variations of a spark ignition engine fuelled with natural gas-hydrogen blends (PDF)
- 发表刊物：
- Int J Hydrogen Energy
- 摘要：
- Cycle-by-cycle variations of a spark ignition engine fueled with natural gas–hydrogen
blends with hydrogen volumetric fraction of 0%, 12%, 23%, 30% and 40% were studied.
The effect of hydrogen addition on cycle-by-cycle variations of the natural gas engine
was analyzed. The results showed that the peak cylinder pressure, the maximum rate of
pressure rise and the indicated mean effective pressure increased and their corresponding cycle-by-cycle variations decreased with the increase of hydrogen fraction at lean mixture operation. The interdependency between the combustion parameters and the corresponding crank angle tended to be strongly correlated with the increase of hydrogen fraction
under lean mixture operation. Coefficient of variation of the indicated mean effective pressure gave a low level and is slightly influenced by hydrogen addition under the stoichiometric and relatively rich mixture operation while it decreased remarkably with the increase of hydrogen fraction under the lean mixture operation. The excessive air ratio at CoVimep¼ 10% extended to the leaner mixture side with the increase of hydrogen fraction and this indicated that the engine lean operating limit could be extended with hydrogen addition.
- 合写作者：
- Wang JH,Chen H,Liu B,Huang ZH
- 卷号：
- 2008, 33(18): 4876-4883
- 页面范围：
- 4876-4883
- 是否译文：
- 否
- 发表时间：
- 2008-09-12