Gas dynamics of an air-blown electric are
The authors obtained the basic evidence on the gas dynamics of an air-blown arc by modification of the track method, which involves photographing the tracks of incandescent particles and determining the lengths of the individual tracks and their positions in the arc. To photograph the tracks, the camera was placed so that the shutter blind moved in the opposite direction of the particles or perpendicular to that direction, while the plane of the film (FOTO-250) was 300-400mm from the electrodes. In the model for the blowing method, it is shown that there are differing factors rather than identical ones controlling the residence times for particles and vapor in the discharge zone, so it may be possible to control them seperately. This is particularly important for using chemical isoformation in conjunction with spectral analysis; it is not necessary for the collector particles to evaporate completely, and their higher transport speed in the discharge tends to reduce the intensity of the incoherent background, while the thin films of relevance on the particles, which may be refractory, enter the discharge fully. The emission time remains sufficient for the vapors.
- OSTI ID:
- 5159995
- Journal Information:
- J. Appl. Spectrosc. (Engl. Transl.); (United States), Vol. 43:5
- Country of Publication:
- United States
- Language:
- English
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ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
COMBUSTION PRODUCTS
AERODYNAMICS
EMISSION SPECTRA
LUMINOSITY
ULTRAHIGH-SPEED PHOTOGRAPHY
ELECTRIC ARCS
GRAPHITE
AIR FLOW
BERNOULLI LAW
FLOW MODELS
FLOW RATE
GLOW DISCHARGES
PARTICLE TRACKS
REGRESSION ANALYSIS
VAPORS
VELOCITY
CARBON
CURRENTS
ELECTRIC CURRENTS
ELECTRIC DISCHARGES
ELEMENTAL MINERALS
ELEMENTS
FLUID FLOW
FLUID MECHANICS
FLUIDS
GAS FLOW
GASES
MATHEMATICAL MODELS
MATHEMATICS
MECHANICS
MINERALS
NONMETALS
OPTICAL PROPERTIES
PHOTOGRAPHY
PHYSICAL PROPERTIES
SPECTRA
STATISTICS
400800* - Combustion
Pyrolysis
& High-Temperature Chemistry