Stand-by and emergency features

2 Stand-by and Energency Features. Certain provisions are made to ensure satisfactory operation of the process-water system under emergency conditions. The primary requirement in emergencies is that there always be some water flow through the reactor. 

Instrumentation on the flash evaporators provides the maximum possible vacuum., The flow of water to the flash evaporators is adjusted by means of valves in the inlet lines. The temperature of the water leaving the flash evaporators determines, by means of a thermal control, the quantity of cooling water passing through the condensing tubes. 

A flow recorder is provided on the water lines from each experimental plug, and,unless the flO through the plugs is satisfactory, the reactor cannot be-started. A water meter is provided in the line- supplying demineralized water to the rabbits and experimental plugs-so- that an inventory may be kept on the amount of water introduced into- the process-water system in this manner  

water leaving the reactor enters the seal tank in the Process Water Building. In the seal-tank entrance there is a radiation recorder for detecting fission breaks. The seal tank is provided with a demineralized-water inlet line and meter for supplying and metering make,-up water. It also is provided with a temperature recorder, and a levelr indicating alarm. AH pumps 

Entering, the bottom o f. the reac tor are. foui-hydraulic rabbits used for experimental purposes.- About 5 gpm of demineralized water is provided for each of these rabbits.  

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