Radiolysis of ammonia in the first-loop coolant of reactors in floating power-generating units

Radiation-chemical removal of corrosion hydrogen from VVER first-loop coolant

“…Let us examine the equation of material balance for radiolysis of water solutions of ammonia in a closed single-phase system [4] for the specific case of the radiolysis of water coolant, initially containing dissolved ammonia, nitrogen, hydrogen, and hydrogen peroxide. For prolonged irradiation of water in a closed system, initially containing only dissolved ammonia, a stationary state is established with a stationary concentration of the products of radiolysis given by the relation We consider the concentration of corrosion hydrogen to be some concentration of hydrogen introduced into the nitrogen-containing ammonia solution before irradiation ([H 2 ] cor = [H 2 ] ini ) and as being in excess as compared with the hypothetical case where corrosion did not occur (Eq.…”