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首页> 外文会议>2001 International gas research conference >DEVELOPMENT OF NATURAL GAS HOMOGENEOUS CHARGED COMPRESSION IGNITION ENGINES
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DEVELOPMENT OF NATURAL GAS HOMOGENEOUS CHARGED COMPRESSION IGNITION ENGINES

机译：天然气均质带压点火发动机的研制

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Recently, the homogeneous charged compression ignition (HCCI) engine, a newly designed high performance internal combustion engine, has been proposed. The method of controlling combustion is vital in putting HCCI engines into practical use. However, there have been no effective solutions to the problem. The main purpose of this report is to identify an available controlling method of HCCI engines. In this study, a single cylinder HCCI engine was operated with natural gas. As a result, it is confirmed that the engine can follow the load by changing intake gas temperature and equivalence ratio. Additionally the performance prospect of HCCI engine was estimated by using cycle simulation. The two-zone model and Livengood-Wu integration equation were adopted in the simulation model to reduce calculating time for simple and practical use. On the basis of our simulation, it was shown that its thermal efficiency could be improved by incorporating the Miller cycle concept.
机译：近来，已经提出了均质充气压缩点火（HCCI）发动机，其是新设计的高性能内燃机。控制燃烧的方法对于将HCCI发动机投入实际使用至关重要。但是，还没有有效的解决方案。该报告的主要目的是确定HCCI发动机的可用控制方法。在这项研究中，单缸HCCI发动机使用天然气运行。结果，证实了发动机可以通过改变进气温度和当量比来跟随负载。另外，通过循环仿真估算了HCCI发动机的性能前景。仿真模型采用两区模型和Livengood-Wu积分方程，减少了计算时间，简化了实际应用。根据我们的仿真，结果表明，通过结合米勒循环概念可以提高其热效率。

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