Influence of the Transients and Water Chemistry Parameters on Corrosion Product Behavior in the Primary System of Naval Reactor Plants

Abstract

This technical note describes the influence of the transients and corrective additives on the distribution of loosely bonded forms of solid-phase corrosion products between the equipment surfaces and the primary coolant of a naval reactor plant. It is shown that the concentration of loosely bonded corrosion products increa ses by tenfold during the transient, and the feeding of corrective additives allows a several-fold reduction in the rate of their resedimentation on the internal surfaces of equipment, and as a consequence, improvement of corrosion product removal efficiency by cleanup filters. The proposed solutions allow removal of up to 70% of loosely bonded corrosion products from the coolant using standard filters.

Keywords:

• Naval reactor plant
• primary system
• loose corrosion products
• equipment surfaces, coolant