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

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

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

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

ENG - Graduate School of Engineering (Common)

Research output: Contribution to conference › Paper › peer-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 language	English
Pages	88-89
Number of pages	2
Publication status	Published - 2004 Jan 1
Event	30th International Symposium on Combustion, Abstracts of Symposium Papers - Chicago, IL, United States Duration: 2004 Jul 25 → 2004 Jul 30

Conference

Conference	30th International Symposium on Combustion, Abstracts of Symposium Papers
Country	United States
City	Chicago, IL
Period	04/7/25 → 04/7/30

ASJC Scopus subject areas

Engineering(all)

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title = "A novel design of a plasma jet torch igniter in a scram jet combustor",

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.",

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AU - Takita, K.

AU - Murakami, K.

AU - Nakane, H.

AU - Masuya, Goro

PY - 2004/1/1

Y1 - 2004/1/1

N2 - 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.

AB - 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.

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