TY - GEN
T1 - The experimental study on ignition mechanism and combustion characteristics of micro gas engine
AU - Ren, Taian
AU - Lu, Dejiang
AU - Jiang, Zhuangde
AU - Zhu, Mingzhi
PY - 2007
Y1 - 2007
N2 - In this article, the experimental studies on ignition mechanisms and combustion characteristics of the micro combustor have been made for the designs and ignition of the combustor. A set of special experimental devices of ignition are designed and fabricated based on Si-based MEMS technology. The combustors of the experimental devices are the square cavity that varied from 1mm to 9mm in length and from 0.5mm to 4mm in height. The spark electrodes are Au electrodes. The gaps of electrodes are 10μm, 40μm, and 100μm. The experiments of the ignition mechanisms of premixed H2/air, the concentration limit of ignition, residence time, ignitor-breakdown voltage, and heat transfer have been made on the devices. The ignition mechanisms and combustion characteristics of H2/air in micro combustor have been discussed based on the results of experiments. The experimental results indicate that the ignition of the premixed H2/air in micro combustor is feasible. The range of the ignitable concentration has a significant reduction. The combustion is subject to the back-fire and liable to suffer from flame extinction. The height is at least larger than 0.61mm. The ignitor-breakdown voltage is at least 350V when the gap of ignition electrodes is 10μm.
AB - In this article, the experimental studies on ignition mechanisms and combustion characteristics of the micro combustor have been made for the designs and ignition of the combustor. A set of special experimental devices of ignition are designed and fabricated based on Si-based MEMS technology. The combustors of the experimental devices are the square cavity that varied from 1mm to 9mm in length and from 0.5mm to 4mm in height. The spark electrodes are Au electrodes. The gaps of electrodes are 10μm, 40μm, and 100μm. The experiments of the ignition mechanisms of premixed H2/air, the concentration limit of ignition, residence time, ignitor-breakdown voltage, and heat transfer have been made on the devices. The ignition mechanisms and combustion characteristics of H2/air in micro combustor have been discussed based on the results of experiments. The experimental results indicate that the ignition of the premixed H2/air in micro combustor is feasible. The range of the ignitable concentration has a significant reduction. The combustion is subject to the back-fire and liable to suffer from flame extinction. The height is at least larger than 0.61mm. The ignitor-breakdown voltage is at least 350V when the gap of ignition electrodes is 10μm.
KW - Combustion characteristics
KW - Dimensional effect
KW - Ignition mechanism
KW - Micro ignition
UR - https://www.scopus.com/pages/publications/34547946151
U2 - 10.1115/MNC2007-21072
DO - 10.1115/MNC2007-21072
M3 - 会议稿件
AN - SCOPUS:34547946151
SN - 0791842657
SN - 9780791842652
T3 - Proceedings of the International Conference on Integration and Commercialization of Micro and Nanosystems 2007
SP - 741
EP - 745
BT - Proceedings of the International Conference on Integration and Commercialization of Micro and Nanosystems 2007
T2 - International Conference on Integration and Commercialization of Micro and Nanosystems 2007
Y2 - 10 January 2007 through 13 January 2007
ER -