Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Chemical flame inhibition using molecular beam mass spectrometry. Reaction rates with 1,1 % CF3Br
Molecular beam-mass spectrometry was used to determine the microstructure of a 10.1 % CH4-21.2 % O2-67.6 % Ar-1.1 % CF3Br inhibited flame and its uninhibited analog, both stabilized at 32 torr on a cooled flat-flame burner. Composition profiles of atomic, radical, and stable species and temperature profiles for both flames were obtained and compared. Kinetic analyses of the profiles yielded values for the rate coefficients of several elementary methane flame reactions and information on the reactions of formation and decay of the observed halocarbon species. CF3Br is judged to decay by thermal decomposition as well as by abstraction reactions, and the fluorocarbon chemistry occurring in the inhibited flame is due primarily to CF2 radical reactions. Rate coeffients and mechanisms for reactions of the inhibitor-related species are given. (Jensen)
Chemical flame inhibition using molecular beam mass spectrometry. Reaction rates with 1,1 % CF3Br
Molecular beam-mass spectrometry was used to determine the microstructure of a 10.1 % CH4-21.2 % O2-67.6 % Ar-1.1 % CF3Br inhibited flame and its uninhibited analog, both stabilized at 32 torr on a cooled flat-flame burner. Composition profiles of atomic, radical, and stable species and temperature profiles for both flames were obtained and compared. Kinetic analyses of the profiles yielded values for the rate coefficients of several elementary methane flame reactions and information on the reactions of formation and decay of the observed halocarbon species. CF3Br is judged to decay by thermal decomposition as well as by abstraction reactions, and the fluorocarbon chemistry occurring in the inhibited flame is due primarily to CF2 radical reactions. Rate coeffients and mechanisms for reactions of the inhibitor-related species are given. (Jensen)
Chemical flame inhibition using molecular beam mass spectrometry. Reaction rates with 1,1 % CF3Br
Untersuchung der chemischen Zuendhemmung mit einem Molekularstrahl-Massenspektrometer, Reaktionsgeschwindigkeiten und -mechanismen in einer Methanflamme, die mit 1,1 % CF3Br gegen Zuendung gehemmt wurde
Biordi, J.C. (Autor:in) / Lazzara, C.P. (Autor:in) / Papp, J.F. (Autor:in)
1978
50 Seiten
Report
Englisch
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