EPRI-ESCP Decay Heat Task Group

Particular attention will be paid to the evaluation of uncertainties. Among other things, the committee will discuss what measurements are still missing, such as fuel type, burn-up history or storage time, and whether and how these measurements can be made.

An accurate determination of the decay power for longterm storage, and the determination of its uncertainty, is important both for extended interim storage and for subsequent disposal. Material temperatures such as those of the cladding tubes or the outer wall of the cask can be better predicted with more accurate data on decay power. In this project, BGZ is directly involved in the evaluation of current measurement data and in the recommendation and planning of new experiments to complete and extend the existing data on decay power.