A novel design of a plasma jet torch igniter in a scram jet combustor

K. Takita, K. Murakami, H. Nakane, Goro Masuya

Research output: Contribution to conferencePaperpeer-review

Abstract

A plasma jet (PJ) torch igniter with a novel configuration in a scramjet combustor was developed and ignition tests of the new torch were conducted in supersonic flow. Two PJ torches with different feedstocks were arranged in a straight line in the direction of flow. A H2/N2 PJ (H2 mole fraction was 0.30) was selected for the upstream PJ and an O2 PJ was selected for the downstream PJ. Three kinds of fuels (H2, C2H4, and CH4) at room temperature were tested. The twin PJ developed showed that ignition in supersonic flow was successful for both fuels of H2 and hydrocarbon, even at the lowest electric power input to the PJ (∼ 2.5 kw in total for two torches). The superiority of the H2/N2-O2 PJ to the N2-N2 PJ was shown for all fuels, though basic flow structure formed by injection of twin PJ was same.

Original languageEnglish
Pages88-89
Number of pages2
Publication statusPublished - 2004 Jan 1
Event30th International Symposium on Combustion, Abstracts of Symposium Papers - Chicago, IL, United States
Duration: 2004 Jul 252004 Jul 30

Conference

Conference30th International Symposium on Combustion, Abstracts of Symposium Papers
CountryUnited States
CityChicago, IL
Period04/7/2504/7/30

ASJC Scopus subject areas

  • Engineering(all)

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