Performance comparison between hydrogen and gasoline fuelled S.I. engine
Performance comparison between hydrogen and gasoline fuelled S.I. engine
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氢燃料 S.I. 发动机与汽油燃料 S.I. 发动机的性能比较
DOI：
10.2298/tsci110203090n
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发表时间：
2011
期刊：
影响因子：
1.7
通讯作者：
A. Cernat
中科院分区：
文献类型：
--
作者：
Niculae Negurescu;C. Pană;M. Popa;A. Cernat
由于其燃烧特性，氢气在火花点火（SI）发动机的能量提升和排放性能方面具有巨大潜力。在这方面，本文介绍了在一些发动机转速和满负荷情况下，使用汽油或仅使用氢气作为燃料的单缸火花点火发动机的实验研究对比结果。由于循环热释放增加，直喷氢气燃料发动机的功率比汽油发动机高出近30%。选择在进气门关闭后的压缩冲程开始时将氢气直接喷入发动机气缸的方法，是为了避免降低每升的功率输出。使用这种燃料供给方法，可以避免在所有发动机运行工况下出现不受控制的燃烧过程。所使用的氢气供应系统是独创的，在操作上具有很大的灵活性以进行调整。所获得的结果表明，使用氢气作为燃料的发动机为定性负荷调节提供了可能性，可用于改善发动机性能，特别是在部分负荷时。本文提出了一种将定性和定量设置调节相结合的策略，以便在所有工况下优化发动机的运行。
Due to its combustion properties, the hydrogen has a great potential in
energetic improvement and emission performance of spark ignition (SI)
engine. In this respect, the paper presents comparative results of the
experimental researches carried on SI single cylinder engine fuelled with
gasoline or only hydrogen, at some engine speeds and full load. Direct
injection hydrogen fuelled engine power is greater with almost 30%
comparative to gasoline engine due to cycle heat release increasing. The
hydrogen direct injection method in the engine cylinder at the beginning of
the compression stroke after the intake valve closed has been chosen to
avoid reducing the power output per litre. Using this fuelling method was
possible to avoid the uncontrolled burning process for all engine operating
regimes. Hydrogen supply system used is original and offers great
flexibility in operation to establish the adjustments. The obtained results
show that the engine fuelled with hydrogen offers the possibility of
qualitative load adjustment using for the engine performance improvement
especially at partial loads. The paper presents a strategy for combining
qualitative and quantitative setting adjustment in order to optimize engine
operation at all regimens.