Influences of the pre-chamber orifices on the combustion behavior in a constant volume chamber simulating pre-chamber type medium-speed gas engines
Influences of the pre-chamber orifices on the combustion behavior in a constant volume chamber simulating pre-chamber type medium-speed gas engines
复制标题
DOI：
10.19206/ce-148171
复制
发表时间：
2022-04
影响因子：
--
通讯作者：
Takuya Wakasugi;Daisuke Tsuru;Hiroshi Tashima
中科院分区：
文献类型：
--
作者：
Takuya Wakasugi;Daisuke Tsuru;Hiroshi Tashima
研究了预燃室结构对装有主动预燃室的中速火花点火燃气发动机主燃室燃烧过程的影响。为了模拟燃气发动机的燃烧室结构，制备了一个定容燃烧室。采用高速阴影摄影技术对火炬火焰的发展过程和燃烧过程进行了可视化研究。通过改变微通道中的充气量、微通道孔的数量和孔径进行了实验。当PC喷孔配置设置适当时，燃烧最加速，使得相邻的火炬火焰将彼此联合收割机结合。有人还发现，在PC中的未燃烧的混合物，喷射之前的火炬火焰，支持火炬火焰的穿透。
The study aims to clarify the influence of pre-chamber (PC) configurations on the combustion process in the main chamber (MC) of medium-speed spark-ignition gas engines equipped with an active PC. A constant volume combustion chamber was prepared to simulate the chamber configurations of the gas engines. A high-speed shadowgraph was applied to visualize the torch flame development and the combustion process in the MC. Experiments were done by changing the charged gas in the MC, the number, and the diameter of the PC orifices. Combustion was most accelerated when the PC orifice configuration was set appropriately so that the adjacent torch flames would combine with each other. It was also found that the unburned mixture in the PC, which ejected prior to the torch flame, supported the penetration of the torch flame.