Video Probe Systems for the Slab Core Test Facility.

摘要

This document describes the two Los Alamos Video Probe Systems that were designed, fabricated, and installed in the Japan Atomic Energy Research Institute (JAERI) Slab Core Test Facility (SCTF), Tokai, Japan. The development of this instrumentation is part of a multinational experimental program (known as the 2D/3D Program) to investigate refill and reflood phenomena in nuclear reactors under simulated loss-of-coolant accident (LOCA) conditions. The systems have provided high-quality video images of two-phase flow phenomena within the pressure vessels of the experimental facilities. This information is extremely valuable for interpreting the results of the experiments; it will provide analysts and experimentalists with flow regime information to evaluate instrumentation response, develop phenomenological models, and assess computer code predictions. On a longer term basis, the recorded images can be digitized selectively and enhanced to obtain liquid-phase velocity and size information.