Mass transfer implications for the choice of reagent for whole circuit chemical decontamination of light water reactors

Situations are identified in which localised and circuit depletion of reagent may limit the dissolution rate of corrosion product deposits during decontamination of a water reactor primary coolant circuit. Localised depletion is considered with reference to the limitation of reagent supply by mass transfer through the boundary layer over a surface and by reaction within porous deposits. The analyses are illustrated for typical water reactor situations. (author)