Mutual influence of coolant radiolysis and transport of not condensed gases in the core of the monoblock reactor with natural circulation

Theoretical aspects of the relative effect of radiolysis of water coolant and transport of noncondensing gases (hydrogen, oxygen, nitrogen) in the first loop of water moderated power nuclear reactors are considered. Simulation of radiation chemical reaction kinetics with high concentration of ammonia and hydrogen reduced to the discussion of decomposition and synthesis of ammonia. Equations describing radiolysis of ammonia and transfer of ammonia, hydrogen and nitrogen between core zone and the rest circulating loop are presented. Hypothesis about the possible rise of variations of ammonium, hydrogen and nitrogen contents in the circulating loop of monoblock reactor is proposed