Premixed silane-oxygen-nitrogen flames

Journal Article · Mon Oct 01 00:00:00 EDT 1990 · Combustion and Flame; (USA)

DOI:https://doi.org/10.1016/0010-2180(90)90076-4· OSTI ID:6518271

Tokuhashi, K; Horiguchi, S; Uranco, Y; Iwasaka, M; Ohtani, H; Kondo, S ^[1]

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1. National Chemical Lab. for Industry, 1-1 Higashi, Tsukuba, Ibaraki 305 (JP)

The burning velocities of lean premised silane-oxygen-nitrogen flames were measured in the silane and oxygen concentration ranges from 1.6% to 2.9% and from 4% to 24%, respectively. Combustion product analyses and flame temperature measurements were also carried out. The burning velocity of a silane-air flame is around 55 cm/ at a silane concentration of 2%. For lean mixtures, when the oxygen concentration is reduced, dependence of burning velocity upon silane concentration decreases but does not significantly affect the flame temperature. For extremely lean flames, the degree of hydrogen production increase with decreasing silane, although silane is consumed almost completely. On the other hand, if the silane concentration exceeds stoichiometric, the burning velocity increases gradually with increasing silane concentration. In that case, silane as well as oxygen are consumed completely and, at the same time, hydrogen rather than water production becomes dominant. The mechanism of silane combustion is discussed, based on numerical calculations, where the mechanism used in the calculation is assembled by analogy of silane to methane combustion.

• OSTI ID: 6518271
• Journal Information: Combustion and Flame; (USA), Journal Name: Combustion and Flame; (USA) Vol. 82:1; ISSN 0010-2180; ISSN CBFMA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400800* -- Combustion
Pyrolysis
& High-Temperature Chemistry
ALKANES
DISPERSIONS
ELEMENTS
FLAME PROPAGATION
FLAMES
HYDRIDES
HYDROCARBONS
HYDROGEN COMPOUNDS
METHANE
MIXTURES
NITROGEN
NONMETALS
NUMERICAL SOLUTION
ORGANIC COMPOUNDS
ORGANIC SILICON COMPOUNDS
OXYGEN
SILANES
SILICON COMPOUNDS
STOICHIOMETRY
TEMPERATURE MEASUREMENT
VELOCITY