Description: Das Projekt "Pilot dismantling of the KRB-A BWR. Dismantling of contaminated components of the reactor building and to activated internals of the reactor pressure vessel - Development and application of concrete sawing and melt encapsulation (Onion packa)" wird vom Umweltbundesamt gefördert und von Kernkraftwerk RWE-Bayernwerk GmbH durchgeführt. Objective: The prototype Boiling Water Reactor Gundremmingen A (KRB-A BWR) of the Kernkraftwerk RWE-Bayernwerk GmbH (KRB) had a capacity of 250 MWe and was operated from 1966 to 1977. Dismantling work has been started for some time (especially the turbine hall has been dismantled), and complete removal of the power station is foreseen to be completed by 2000. The 2 foregoing EC programmes have been involved by 4 R and D contracts in the past dismantling work on KRB-A. KRB-A dismantling is a European undertaking according to the definition of the Euratom Treaty. Considering that the experience to be gained from the dismantling of the first representative nuclear installations in the Community should be made available to all Member States, the Commission selected KRB-A as a pilot dismantling project for the 1989-93 R and D programme on the decommissioning of nuclear installations. The Commission, through shared-cost participation in specific parts of the project, intends promoting the use of advanced techniques and the performance of collateral investigations, in order to enhance the generation of useful knowledge and experience to serve in subsequent decommissioning tasks. In particular, the generation of specific data on costs, working hours and job doses as well as on the amount of created secondary waste is considered as an important objective of this project. The assessment of techniques and procedures will be performed in collaboration with CEN/SCK Mol and VAK-GmbH, which are decommissioning the Pressurised Water Reactor BR-3 and the VAK BWR, respectively. The results and conclusions of the assessment work undertaken in contract FI2D0002 are taken into account for the implementation of work in this contract. As a BWR, KRB-A is representative for such reactors, existing elsewhere in the Community. The first phase of the contract involves the dismantling and segmenting of contaminated components of the reactor building in air (partly with subsequent decontamination), and of activated internals of the reactor pressure vessel (RPV) in remotely controlled underwater operation. Estimations of maximal values for specific contamination or activation are in the order of 10 superscript 4 and 10 superscript 6 Bq/square cm, respectively. The second phase contains the development of specific tools and the segmentation of further steel components and concrete structures as well as the development of procedures for the conditioning of molten steel (onion package) and of decontamination waste. General Information: WORK PROGRAMME. 1. Dismantling in air of contaminated and low-activated components of the reactor building, partly with subsequent decontaminating/melting. 1.1. Dismantling of a secondary steam generator with various tools (band saw, flame cutting). 1.2. Dismantling of a primary circulation pump by band saw. 1.3. Dismantling of a primary clean-up cooler with various tools (band saw, diamond-tipped wire saw). 1.4. Dismantling of a shutdown ...
SupportProgram
Origin: /Bund/UBA/UFORDAT
Tags: Stahlbeton ? Beton ? Unterwasser ? Druckwasserreaktor ? Siedewasserreaktor ? Umwälzpumpe ? Abfallbehandlung ? Arbeitszeit ? Europäische Kommission ? Contracting ? Kostenrechnung ? Gebäuderückbau ? Europäische Atomgemeinschaft ? Gebäude ? Kernkraftwerk ? Kerntechnische Anlage ? Kreiselpumpe ? Strahlenschutz ? Abfalldaten ? Staatenvereinigung ? Abfallaufkommen ? Finanzierungshilfe ? Gewerbebetrieb ? Kapselung ? Pumpe ? Radioaktive Kontamination ? Reaktor ? Technikfolgenabschätzung ? Umwelttechnik ? Verfahrenstechnik ? Vertrag ? Kraftwerk ? Wasser ? Arbeitsschutz ? Dampfkessel ? Rückbau ? Dosis ? Reaktordruckbehälter ? Datenerhebung ? Druckbehälter ? Informationsgewinnung ? Stilllegung ? Kühlung ? Mehrfachnutzung ? Nachnutzung ? Pilotprojekt ? Verpackung ? Forschungsprogramm ? Prototyp ? Verfahrensforschung ? Werkzeug ? Zerkleinerung ? Turbomaschine ?
Region: Bayern
Bounding boxes: 12.53381° .. 12.53381° x 47.795° .. 47.795°
License: cc-by-nc-nd/4.0
Language: Deutsch
Time ranges: 1990-05-01 - 1996-12-31
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