Experimental Investigation of the Refill Behaviour in a CANDO-type Header/Feeder System

Abstract

A preliminary experimental investigation was conducted to study transient phenomena that may occur in CANDU-type headers during water injection into the inlet header. This paper describes the blowdown and refill results in detail. The effects of the initial preheat temperature, injection pressure, break size and location on the header refill time were also analyzed. This work represents an important first step in our efforts to understand header behaviour under transient condition. The experimental data obtained form a data base against which analytical header models can be verified.