COUNTERCURRENT FLOW, COUPLED COLD LEG STEAM, AND TRANSIENT STEAM FLOW TESTS AT 1/15-SCALE

摘要

Preliminary results of experiments in a 1/15-scale, cylindrical, elevated pressure, PWR-model test vessel are described. These tests form part of a program to develop an analytical and empirical model for plenum filling. During the quarter, tests of countercurrent flow (at various system pressures), coupled cold leg steam (with and without superheated walls), and transient steam flow (with and without superheated walls) were conducted. Comparisons of the countercurrent flow data and a correlation developed by Create are made. Good agreement is demonstrated. Samples of the other two types of tests are presented and discussed.