Configurational testing of electron beam ionization for coal fly ash precipitators. Quarterly report No. 2, November 5, 1983-February 4, 1984
The energy-geometry matching condition reported in Quarterly Report No. 1 has been incorporated in the design of a Mark II precharger and construction is underway. By matching the energy and geometry, monopolar charging is assured by providing a charging zone outside the ionization zone. Particle charges greater than the Pauthenier limit were observed using a bi-electrode geometry. Either or both free electron charging or space-charge enhancement of the electric field may be responsible for the increase in charge above the theoretical limit for the average electric field. A separate experiment on free electron charging proceeded during this quarter and the progress is reported. To date the exhaustive experiments on resistance modification by simple electron beam irradiation have not provided evidence to support practical utilization. However, preliminary experiments do suggest that the presence of small amounts of SO/sub 2/ and the subsequent conversion of SO/sub 2/ by electron beam treatment may conductively coat high resistivity fly ash particles with a resultant reduction in resistivity. The status of the laboratory precipitator test system is reported along with the preparations for tests of the new Mark II precharger module. During this quarter a patent disclosure on a device to enhance radiation dose was submitted to the US Department of Energy. 13 figures.
- Research Organization:
- Florida State Univ., Tallahassee (USA). Dept. of Physics
- DOE Contract Number:
- AC22-83PC60266
- OSTI ID:
- 5294830
- Report Number(s):
- DOE/PC/60266-T2; ON: DE84009312
- Country of Publication:
- United States
- Language:
- English
Similar Records
Configurational testing of electron beam ionization for coal fly ash precipitators. Quarterly report No. 5, August 5-November 4, 1984
Configurational testing of electron beam ionization for coal fly ash precipitators. Quarterly report No. 3, February 5-May 4, 1984
Related Subjects
ELECTRON BEAMS
TESTING
FLY ASH
IONIZATION
AEROSOLS
COATINGS
ELECTRIC CONDUCTIVITY
ELECTROSTATIC PRECIPITATORS
ENTRAINMENT
PARTICULATES
SULFUR DIOXIDE
USES
AEROSOL WASTES
ASHES
BEAMS
CHALCOGENIDES
COLLOIDS
DISPERSIONS
ELECTRICAL PROPERTIES
EQUIPMENT
LEPTON BEAMS
OXIDES
OXYGEN COMPOUNDS
PARTICLE BEAMS
PARTICLES
PHYSICAL PROPERTIES
POLLUTION CONTROL EQUIPMENT
RESIDUES
SOLS
SULFUR COMPOUNDS
SULFUR OXIDES
WASTES
010800* - Coal
Lignite
& Peat- Waste Management