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Title: Particle and gas velocity measurements in a dc plasma jet

Measurements were made, using Laser Doppler Anemometry (LDA), of the velocity of 53 ..mu..m alumina particles as they are injected in a dc plasma jet operated with an argon-nitrogen mixture (18.9 l/min argon and 4.7 l/min nitrogen) at a power level of 15.2 kW. Results obtained at distances between 5 and 150 mm from the nozzle showed the particles to penetrate the plasma jet and attain the gas velocity at about 50 mm from their point of injection. Plasma velocity measurements in the core region of the jet proved to be particularly difficult. Limitations of the LDA system with regard to its spatial resolution and seeding requirements are discussed.
Authors:
; ; ;
Publication Date:
OSTI Identifier:
6713412
Report Number(s):
CONF-800610-12
ON: DE84012970
DOE Contract Number:
AC02-77EV04320
Resource Type:
Conference
Resource Relation:
Conference: American Institute of Chemical Engineering conference, Philadelphia, PA, USA, 8 Jun 1980; Other Information: Portions are illegible in microfiche products
Research Org:
Sherbrooke Univ., Quebec (Canada). Dept. of Chemical Engineering
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; PLASMA JETS; VELOCITY; ALUMINIUM OXIDES; ANEMOMETERS; ARGON; DOPPLER EFFECT; NITROGEN; ALUMINIUM COMPOUNDS; CHALCOGENIDES; ELEMENTS; FLUIDS; GASES; MEASURING INSTRUMENTS; NONMETALS; OXIDES; OXYGEN COMPOUNDS; RARE GASES 700104* -- Fusion Energy-- Plasma Research-- Plasma Kinetics-Experimental-- (-1987)