SUGGESTED DESIGN METHODS FOR THE APPLICATION OF SPRAY EVAPORATION TO A STEAM COOLED HEAVY WATER MODERATED REACTOR

摘要

"Spray evaporation" - cooling by means of a two-phase mixture of steam and water has been put forward as an efficient method of heat removal from a reactor core(1). In order to make some assessment of the feasibility of using such a coolant in the Steam Cooled Heavy Water Moderated system it becomes necessary to outline provisional design methods for the heat transfer and hydrodynamical aspects of the core. It must be pointed out that the principle of Spray Evaporation has not yet been tested in this country at pressures required for power reactor opera-tion and that the methods described in the following paragraphs are no more than the best guess that can be made from the limited data so far available.