Recent activities in the Aerosol Generation and Transport Program

Conference · Sun Jan 01 00:00:00 EST 1984

OSTI ID:6149508

Adams, R E

General statements may be made on the behavior of single-component and multi-component aerosols in the Nuclear Safety Pilot Plant vessel. The removal processes for U/sub 3/O/sub 8/, Fe/sub 2/O/sub 3/, and U/sub 3/O/sub 8/ + Fe/sub 2/O/sub 3/ aerosols are enhanced in a steam-air atmosphere. Steam-air seems to have little effect on removal of concrete aerosol from the vessel atmosphere. A steam-air environment causes a change in aerosol shape from chain-agglomerate to basically spherical for U/sub 3/O/sub 8/, Fe/sub 2/O/sub 3/, and U/sub 3/O/sub 8/ + Fe/sub 2/O/sub 3/ aerosol; for concrete the change in aerosol shape is from chain-agglomerate to partially spherical. The mass ratio of the individual components of a multi-component aerosol seems to have an observable influence on the resultant behavior of these aerosols in steam. The enhanced rate of removal of the U/sub 3/O/sub 8/, the Fe/sub 2/O/sub 3/, and the mixed U/sub 3/O/sub 8/ + Fe/sub 2/O/sub 3/ aerosols from the atmosphere of the NSPP vessel by steam-air is probably caused by the change in aerosol shape and the condensation of steam on the aerosol surfaces combining to increase the effect of gravitational settling. The apparent lack of an effect by steam-air on the removal rate of concrete aerosol could result from a differing physical/chemical response of the surfaces of this aerosol to condensing steam.

• Research Organization: Oak Ridge National Lab., TN (USA)
• DOE Contract Number: AC05-84OR21400
• OSTI ID: 6149508
• Report Number(s): CONF-8410142-6; ON: DE85000272
• Resource Relation: Conference: 12. water reactor safety research information meeting, Gaithersburg, MD, USA, 23 Oct 1984
• Country of Publication: United States
• Language: English

Related Subjects

22 GENERAL STUDIES OF NUCLEAR REACTORS
NUCLEAR SAFETY PILOT PLANT
REACTOR ACCIDENTS
RADIOACTIVE AEROSOLS
WATER COOLED REACTORS
AIR
IRON OXIDES
STEAM
URANIUM OXIDES U3O8
ACCIDENTS
ACTINIDE COMPOUNDS
AEROSOLS
CHALCOGENIDES
COLLOIDS
DISPERSIONS
FLUIDS
GASES
IRON COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
REACTOR SAFETY EXPERIMENTS
REACTORS
SOLS
TRANSITION ELEMENT COMPOUNDS
URANIUM COMPOUNDS
URANIUM OXIDES
220900* - Nuclear Reactor Technology- Reactor Safety