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Ignition Performance of Pulsed Microwave-Assisted Sparks in Lean Methane/Air Mixture
Technical Paper
2015-01-1898
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
1
In this work, a microwave-assisted spark ignition was investigated for premixed lean methane/air mixtures. Experiments were performed in a combustion chamber with a constant volume. The initial pressure of the chamber was set to 0.1MPa and 1Mpa. Equivalence ratio Ø was varied from 0.51 to 0.6 to investigate the ignition behavior near the lean limit. High temperature regions in flames were visualized by the Schlieren photography using a high speed video camera. When the irradiation delay of microwave is 200 μs and the pulse frequency is 10 kHz, the probability of ignition reached maximum. A microwave irradiation to the mixture enable to ignite the mixture of equivalence ratio of 0.52.
Table 1
Authors
- XiaoJing Gu - Department of Aeronautics and Astronautics, School of Engine
- Hiroaki Shiono - Department of Aeronautics and Astronautics, School of Engine
- Shinji Nakaya - Department of Aeronautics and Astronautics, School of Engine
- Mitsuhiro Tsue - Department of Aeronautics and Astronautics, School of Engine
Topic
Citation
Gu, X., Shiono, H., Nakaya, S., and Tsue, M., "Ignition Performance of Pulsed Microwave-Assisted Sparks in Lean Methane/Air Mixture," SAE Technical Paper 2015-01-1898, 2015, https://doi.org/10.4271/2015-01-1898.Also In
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