Optical Emission and Mass Spectra Observations during Hydrogen Combustion in Atmospheric Pressure Microwave Plasma

We experimentally investigated hydrogen combustion by atmospheric pressure plasma generated by a 2.45 GHz microwave discharge. Small amounts of hydrogen and oxygen were mixed in the operational argon gas during discharge. To clarify the details of combustion, optical emission was measured. The const...

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Published inPlasma and Fusion Research Vol. 7; p. 2401075
Main Authors EZUMI, Naomichi, AKAHANE, Kazuhiko, SAWADA, Keiji, TANAKA, Yasunori, TANAKA, Masahiro, UDA, Tatsuhiko, NISHIMURA, Kiyohiko
Format Journal Article
LanguageEnglish
Published The Japan Society of Plasma Science and Nuclear Fusion Research 2012
Subjects
atmospheric pressure plasma
hydrogen combustion
mass spectroscopy
optical emission spectroscopy
tritium
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Summary:We experimentally investigated hydrogen combustion by atmospheric pressure plasma generated by a 2.45 GHz microwave discharge. Small amounts of hydrogen and oxygen were mixed in the operational argon gas during discharge. To clarify the details of combustion, optical emission was measured. The constituents of combustion-processed gases were observed by a quadruple mass spectrometer. The degree of hydrogen oxidation, the so-called conversion rate, increased with input microwave power. The maximum hydrogen conversion rate was greater than 80% under these experimental conditions. During discharge, an optical emission peak due to OH radicals was observed.
ISSN:1880-6821
1880-6821
DOI:10.1585/pfr.7.2401075