Status and problems of fuel element development for the HHT project, Status September 1974

Automatic translation: (1) The decision of the steering committee of the project, after extensive and thorough comparative studies, was made in the spring of 1974 that a fuel element with block-shaped geometry corresponding to the GAG reference element for the Fort St. Vrain plant should be developed for the HHT plant. The main results and arguments of the studies are based on the long and detailed discussions are required for the further presentations. (2) The German fuel assembly development program has so far dealt with three Fuel element concepts: spherical fuel elements, graphite block elements, pressed block elements (monoliths). The HHT project requires a shift in focus as part of the graphite block element development work and thus a specific intensification of the development of the components coated fuel particles and fuel rods. An intensification of the ongoing reactor graphite development appears specifically for the HHT project, e.g. currently not required.