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

Abstract

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.

Authors:
; ; ;
Publication Date:
Research Org.:
Comision Nacional de Energia Atomica, Departamento Quimica de Reactores, Avenida del Libertador 8250, 1429 Buenos Aires
OSTI Identifier:
5384546
Resource Type:
Journal Article
Journal Name:
Nucl. Sci. Eng.; (United States)
Additional Journal Information:
Journal Volume: 84:2
Country of Publication:
United States
Language:
English
Subject:
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

Citation Formats

Urrutia, G A, Blesa, M A, Maroto, A J.G., and Passaggio, S I. Model of the deposition of colloidal crud particles on the fuel elements of nuclear power plants. United States: N. p., 1983. Web.
Urrutia, G A, Blesa, M A, Maroto, A J.G., & Passaggio, S I. Model of the deposition of colloidal crud particles on the fuel elements of nuclear power plants. United States.
Urrutia, G A, Blesa, M A, Maroto, A J.G., and Passaggio, S I. 1983. "Model of the deposition of colloidal crud particles on the fuel elements of nuclear power plants". United States.
@article{osti_5384546,
title = {Model of the deposition of colloidal crud particles on the fuel elements of nuclear power plants},
author = {Urrutia, G A and Blesa, M A and Maroto, A J.G. and Passaggio, S I},
abstractNote = {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.},
doi = {},
url = {https://www.osti.gov/biblio/5384546}, journal = {Nucl. Sci. Eng.; (United States)},
number = ,
volume = 84:2,
place = {United States},
year = {Wed Jun 01 00:00:00 EDT 1983},
month = {Wed Jun 01 00:00:00 EDT 1983}
}