NDLI: Chemical processes in the HNF flame

Content Provider	Springer Nature Link
Author	Ermolin, N. E. Zarko, V. E. Keizers, H. H.
Copyright Year	2006
Abstract	Results of modeling the HNF flame structure are presented. From an analysis of literature data on the thermal decomposition and combustion of HNF, it is concluded that the dissociative vaporization of HNF proceeds via the route HNFliq → (N2H4)g + (HC(NO2)3)g. The flame structure is modeled using a detailed kinetic mechanism consisting of 47 species and 283 elementary reactions. Its constituents are the decomposition mechanisms of hydrazine (N2H4)g and trinitromethane (HC(NO2)3)g (nitroform, NFg). The latter come from the burning surface by dissociative vaporization. The modeling was performed for different routes of NFg decomposition involving HC(NO2)2, HCNO2, and HC(O)NO2 radicals. The HNF flame structure was calculated for pressures of 0.4, 1, and 5 atm using data on the product composition on the burning surface that correspond to the developed reaction in the condensed phase and are consistent with the chemical composition and enthalpy of formation of HNF. As follows from the calculations, the heat release in the gas-phase reaction of nitroform with hydrazine (and partially with ammonia) leads to a temperature increase in the flame zone adjacent to the burning surface from its value on the surface to ≈1300 K. A further increase in the flame temperature is related to the reaction in the H2O/N2/N2O/NH3/NO/NO2/HNO2/CO/CO2/HCNO/HCN mixture. The calculation results are compared with experimental data on the thermal and chemical structure of the HNF flame.
Starting Page	509
Ending Page	520
Page Count	12
File Format	PDF
ISSN	00105082
Journal	Combustion, Explosion and Shock Waves
Volume Number	42
Issue Number	5
e-ISSN	15738345
Language	English
Publisher	Kluwer Academic Publishers-Consultants Bureau
Publisher Date	2006-01-01
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	hydrazine nitroformate flame structure kinetics modeling Physical Chemistry Mechanics, Fluids, Thermodynamics Mechanics Engineering Vibration, Dynamical Systems, Control
Content Type	Text
Resource Type	Article
Subject	Chemistry Physics and Astronomy Fuel Technology Chemical Engineering Energy Engineering and Power Technology

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