Project study on the defining and technical realisation of the compact core with involute-shaped fuel plates

Reference core KKE7 could be defined and specified in all dimensions, materials, uranium density and distribution, control rod structure and central canal (for core control and guidance, and removal of D2O). The effectiveness of the central control rod and of the cooling under the different operational conditions is largely known. Questions on the erection, control and guidance, anchoring and handling are answered with respect to the following components: Details of the D2O reflector tank with central canal, internals and adjacent cooling structure. Mechanical design of KKE5 and KKE 7 with anchorings and guide system. Conception and comparisons of the power control rod with drive, linkage, absorber and Beryllium sequential controller. Fitting of emergency shutdown rods positioned in relation to the beam holes, the cold source and the cooling structure. Logistical studies on the compact core, control rod, emergency shutdown rods, instrumentation, central canal, beam holes and the D2O reflector tank for operational refuelling, inspection and repair. (orig.)