Public assimilation and international utilization of heat and electricity from ISER-PIUS system

ISER-PIUS is envisaged as one of the LWR based ultra-safe reactors to be used extensively in the next century. But in the course, the public assimilation effort leading to the public acceptance is much more important than the independent development of a part of plant; reactor. Obviously, safty of waste management needs to be elaborated concomitantly besides the inherently safe nature of the reactor core as a part of the ISER-PIUS system itself. In any of the alternative options, public assimilation is a measure for penetrating the system into the society. It is a prerequisite for all of them, that the safety of daily operations and the safe way of waste disposal are to be ensured. As to the safety of the nuclear core, it is essential to increase the safety margin in the nuclear core making use of almost as passive safe system as possible. This means minimization of human factors of designers, fabricators, operators and maintenance personnels and of active mechanical elements as well. The safety of waste disposal rests again more on the human factors that must enter each consecutive operation of the management. Strategy of storing spent fuel with intact clad for a century or so can allow us to reuse it as fuel because FP ash will have decayed so low as to allow the residual fuel and newly born fuel (plutonium) to be usable again. ISER is a standard nuclear energy system to be used worldwide with the backing of its inherent-safety nature. (Nogami, K.)