2015-09-01
Ignition Performance of Pulsed Microwave-Assisted Sparks in Lean Methane/Air Mixture 2015-01-1898
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 1Nomenclature
SAE MOBILUS
Subscribers can view annotate, and download all of SAE's content. Learn More »
