Development of Liquld Poison Rapid Injection (LPRI) System (Flow Characteristics)

Abstract

THE LPRI system has been developed for a boiling-light-water-cooled pressure-type-type heavy water reactor in Japan. 1/3-scale visual tests were undertaken to determine dimensions of discharging holes of liquid poison and their configuration on control rod guide tubes. Full-scale tests were carried out to find out hydraulic characteristics of the system and to acquire data for determining design criteria of the system.