Parametric analysis of a dual-piston type free-piston gasoline engine linear generator
Parametric analysis of a dual-piston type free-piston gasoline engine linear generator
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DOI：
10.1016/j.egypro.2019.01.346
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发表时间：
2019-02
期刊：
影响因子：
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通讯作者：
Guo Chendong;Zhengxing Zuo;Boru Jia;Boru Jia;Zhang Ziwei;Feng Huihua;A. Roskilly
中科院分区：
文献类型：
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作者：
Guo Chendong;Zhengxing Zuo;Boru Jia;Boru Jia;Zhang Ziwei;Feng Huihua;A. Roskilly
自由活塞汽油机直线发电机是将直线内燃机和直线发电机耦合在一起的一种直线型动力装置。自由活塞汽油机一般采用简化的零维模型。本文对双活塞式FPELG进行了参数分析，旨在了解活塞工作特性和FPELG发电过程中的性能。模型验证进行了测试数据从一个运行的原型，显示出良好的协议。结果表明，在行程一定的情况下，动质量越小，指示功率越大。在移动质量一定的情况下，行程越短，指示功率越大。FPELG被观察到在高负载下操作，并且它倾向于在相对低的速度下操作。研究了点火提前角和燃烧效率等燃烧参数对燃料电池发动机性能的影响。
The free-piston gasoline engine linear generator (FPELG) is linear type power device, which couples a linear internal combustion engine and a linear electrical generator together. Free-piston gasoline engine is commonly modeled using simplified zero-dimensional models. In this paper, parametric analysis of a dual-piston type FPELG is presented, aiming to find the piston operation characteristics and the performances of the FPELG during the generating process. Model validation was undertaken with the test data from a running prototype, which showed good agreement. The results show that with fixed stroke, lower moving mass would lead to higher indicated power. With fixed moving mass, shorter stroke would make higher indicated power. The FPELG was observed to be operated at high load, and it was prone to operate at relative low speed. The influence of combustion parameters, i.e. the ignition timing and the combustion efficiency to the FPELG engine performance were also investigated respectively.