Model of the deposition of colloidal crud particles on the fuel elements of nuclear power plants

Journal Article · Wed Jun 01 00:00:00 EDT 1983 · Nucl. Sci. Eng.; (United States)

OSTI ID:5384546

Urrutia, G A; Blesa, M A; Maroto, A J.G.; Passaggio, S I

Experimental data on the adhesion of ..cap alpha..-Fe/sub 2/O/sub 3/ on large ZrO/sub 2/ pellets are presented and discussed in terms of the colloidal interactions of the two double layers. The pH dependence of adhesion is thus explained. The relevance of colloidal interactions of this type in reactor conditions is then discussed, through the evaluation of the impact of the existence of a potential barrier to deposition. This is discussed in terms of Beal's model, and the changes in the stopping distance for colloidal particles due to this barrier are evaluated. The influence of pH and particle size on deposition phenomena is also discussed. Predicted values for the deposition coefficient are compared with operational values from the Atucha Nuclear Power Plant.

• Research Organization: Comision Nacional de Energia Atomica, Departamento Quimica de Reactores, Avenida del Libertador 8250, 1429 Buenos Aires
• OSTI ID: 5384546
• Journal Information: Nucl. Sci. Eng.; (United States), Vol. 84:2
• Country of Publication: United States
• Language: English

Related Subjects

22 GENERAL STUDIES OF NUCLEAR REACTORS
ATUCHA REACTOR
FUEL ELEMENTS
FOULING
IRON OXIDES
DEPOSITION
ZIRCONIUM OXIDES
DEPOSITS
ADHESION
COLLOIDS
NUCLEAR POWER PLANTS
PH VALUE
CHALCOGENIDES
DISPERSIONS
HEAVY WATER COOLED REACTORS
HEAVY WATER MODERATED REACTORS
IRON COMPOUNDS
NATURAL URANIUM REACTORS
NUCLEAR FACILITIES
OXIDES
OXYGEN COMPOUNDS
PHWR TYPE REACTORS
POWER PLANTS
POWER REACTORS
REACTOR COMPONENTS
REACTORS
THERMAL POWER PLANTS
THERMAL REACTORS
TRANSITION ELEMENT COMPOUNDS
ZIRCONIUM COMPOUNDS
220300* - Nuclear Reactor Technology- Fuel Elements