Use of a plasma jet for flame stabilization and promotion of combustion in supersonic air flows

Journal Article · Tue Sep 01 00:00:00 EDT 1981 · Combust. Flame; (United States)

DOI:https://doi.org/10.1016/0010-2180(81)90164-4· OSTI ID:5689736

Kimura, I; Aoki, H; Kato, M

The feasibility of the use of a plasma jet was investigated for the improvement of flame stabilization and the promotion of combustion of a fuel jet injected into supersonic air streams. Fuel gas (hydrogen) was injected transversely into supersonic air streams of M.2.1 or 2.7 (P/sub s/.1.0 atm), with the pressure ratio P/sub t,i//P/sub s/.16, and the plasma (hydrogen, nitrogen, or argon) produced by a plasma jet was injected at 25 mm downstream from the fuel injection in most cases. The onset and spread of combustion and its influence on the flow field were investigated by the schlieren method and direct photography, and also by measurements of temperature and pressure in the reacting gas stream. It is shown that the injection of plasma, which is produced with relatively small electrical power, is very effective for flame stabilization and promotion of combustion, when the position of injection is adequate. 14 refs.

• Research Organization: Univ of Tokyo, Jpn
• OSTI ID: 5689736
• Journal Information: Combust. Flame; (United States), Vol. 42:3
• Country of Publication: United States
• Language: English

Related Subjects

08 HYDROGEN
37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
FLAMES
STABILITY
HYDROGEN
COMBUSTION
INTERNAL COMBUSTION ENGINES
NITROGEN
PHOTOGRAPHY
PLASMA JETS
SCHLIEREN METHOD
SUPERSONIC FLOW
CHEMICAL REACTIONS
ELEMENTS
ENGINES
FLUID FLOW
HEAT ENGINES
NONMETALS
OXIDATION
THERMOCHEMICAL PROCESSES
080800* - Hydrogen- Properties & Composition
400800 - Combustion
Pyrolysis
& High-Temperature Chemistry