Oxygen and Hydrogen Control Systems Used in Gas Circuits and NPP Containment Vessels.

UDC: 
621.039.534.3

Issue of journal:

Abstract: 

Increased reliability and safety of the operation of one-piece reactors and installations using Pb-Bi and Pb as coolant require the development and improvement of the systems able to diagnose the state of the coolant and detect at early stages the possibility of accident situations. The main controlled parameters are the oxygen activity in the coolant and the concentration of oxygen and hydrogen in the gas phase circuit. The most promising devices enabling control of these parameters are the solid electrolyte sensors made of ceramic oxide, which allow measurement to be taken in the continuous mode under conditions of high temperatures, pressures, velocities of the environment and thermal shocks.

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