Obiettivo The Boiling Water Reactor plant Gundremmingen A (KRB-A) is one of the 4 pilot dismantling projects of the EC programme. The above contract provided a preliminary design and assessment study of alternative remote operation and segmenting techniques for underwater dismantling of the pressure vessel internals of KRB-A. Occupational radiation exposure, costs, and the conditioning and minimization of the radioactive waste were considered in particular. In the course of its implementation this study was extended to the case of the VAK BWR of Kahl.A preliminary design and assessment study of alternative remote operation and segmenting techniques for underwater dismantling of the pressure vessel internals of KRB-A was carried out. Occupational radiation exposure, costs, and the conditioning and minimization of the radioactive waste were considered in particular. In the course of its implementation this study was extended to the case of the VAK BWR of Kahl.The work programme included: an inventory of KRB-A conditions, eg materials and geometries of components, local dose rates and radioactivities, accessibility; a literature study on the state of the art; an analysis of underwater segmenting techniques including thermal, mechanical, electrical and chemical techniques; an investigation of remote operation techniques considering alternative manipulator designs and various degrees of automatization; a comparative evaluation of the alternative techniques investigated, considering all relevant aspects; selection of the optimum technique(s); identification of experimental investigations needed, if any.WORK PROGRAMME 1. Inventory of KRB-A conditions, eg, materials and geometries of components, local dose rates and radioactivities, accessibility. 2. Literature study on the state-of-the-art. 3. Analysis of underwater segmenting techniques including thermal, mechanical, electrical and chemical techniques. 4. Investigation of remote-operation techniques considering alternative manipulator designs and various degrees of automatization. 5. Comparative evaluation of the alternative techniques investigated, considering all relevant aspects; selection of the optimum technique(s); identification of experimental investigations needed, if any. Campo scientifico engineering and technologyother engineering and technologiesnuclear engineeringnuclear waste managementhumanitieslanguages and literatureliterature studiesnatural sciencesmathematicspure mathematicsgeometry Programma(i) FP2-DECOM 3C - Specific research and technological development programme (Euratom) in the field of decommissioning of nuclear installations, 1989-1993 Argomento(i) C1 - Pilot dismantling projects Invito a presentare proposte Data not available Meccanismo di finanziamento CSC - Cost-sharing contracts Coordinatore Kernkraftwerk RWE - Bayernwerk GmbH Contributo UE Nessun dato Indirizzo 1,Dr.-August-Weckesser-Strasse 89355 Gundremmingen Germania Mostra sulla mappa Costo totale Nessun dato
