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Dismantling of the Upper RPV Components of the Karlsruhe Multi-Purpose Research Reactor (MZFR), Germany.

DE2004827060

Publication Date	2003
Personal Author	Prechtl, E.; Suebdorf, W.
Page Count	12
Abstract	The Multi-purpose Research Reactor was a pressurized-water reactor cooled and moderated with heavy water. It was built from 1961 to 1966 and went critical for the first time on 29 September 1965. After nineteen years of successful operation, the reactor was de-activated on 3 May 1984. The reactor had a thermal output of 200 MW and an electrical output of 50 MW. The MZFR not only served to supply electrical power, but also as a test bed for: - research into various materials for reactor building (e. g. zirkaloy), - the manufacturing and operating industry to gain experience in erection and operation, - training scientific and technical reactor staff, and - power supply (first nuclear combined-heat-and-power system, 1979-1984). The experience gained in operating the MZFR was very helpful for the development and operation of power reactors. At first, safe containment and enclosure of the plant was planned, but then it was decided to dismantle the plant completely, step by step, in view o f the clear advantages of this approach. The decommissioning concept for the complete elimination of the plant down to a green-field site provides for eight steps. A separate decommissioning license is required for each step. As part of the dismantling, about 72,000 Mg (metric tons) of concrete and 7,200 Mg of metal (400 Mg RPV) must be removed. About 700 Mg of concrete (500 Mg biological shield) and 1300 Mg of metal must be classified as radioactive waste.
Keywords	Research reactors Dismantling Pressure vessels Reactor components Russia PWR type reactors Decommissioning Radioactive waste management Radioactive wastes Procedures Multi-purpose Research Reactor(MZFR)
Source Agency	Technical Information Center Oak Ridge Tennessee
Corporate Authors	Forschungszentrum Karlsruhe G.m.b.H. Technik und Umwelt (Germany).; Department of Energy, Washington, DC.
Supplemental Notes	Sponsored by Department of Energy, Washington, DC.
Document Type	Technical Report
NTIS Issue Number	200511

Dismantling of the Upper RPV Components of the Karlsruhe Multi-Purpose Research Reactor (MZFR), Germany.

Dismantling of the Upper RPV Components of the Karlsruhe Multi-Purpose Research Reactor (MZFR), Germany.
DE2004827060

Publication Date	2003
Personal Author	Prechtl, E.; Suebdorf, W.
Page Count	12
Abstract	The Multi-purpose Research Reactor was a pressurized-water reactor cooled and moderated with heavy water. It was built from 1961 to 1966 and went critical for the first time on 29 September 1965. After nineteen years of successful operation, the reactor was de-activated on 3 May 1984. The reactor had a thermal output of 200 MW and an electrical output of 50 MW. The MZFR not only served to supply electrical power, but also as a test bed for: - research into various materials for reactor building (e. g. zirkaloy), - the manufacturing and operating industry to gain experience in erection and operation, - training scientific and technical reactor staff, and - power supply (first nuclear combined-heat-and-power system, 1979-1984). The experience gained in operating the MZFR was very helpful for the development and operation of power reactors. At first, safe containment and enclosure of the plant was planned, but then it was decided to dismantle the plant completely, step by step, in view o f the clear advantages of this approach. The decommissioning concept for the complete elimination of the plant down to a green-field site provides for eight steps. A separate decommissioning license is required for each step. As part of the dismantling, about 72,000 Mg (metric tons) of concrete and 7,200 Mg of metal (400 Mg RPV) must be removed. About 700 Mg of concrete (500 Mg biological shield) and 1300 Mg of metal must be classified as radioactive waste.
Keywords	Research reactors Dismantling Pressure vessels Reactor components Russia PWR type reactors Decommissioning Radioactive waste management Radioactive wastes Procedures Multi-purpose Research Reactor(MZFR)
Source Agency	Technical Information Center Oak Ridge Tennessee
Corporate Authors	Forschungszentrum Karlsruhe G.m.b.H. Technik und Umwelt (Germany).; Department of Energy, Washington, DC.
Supplemental Notes	Sponsored by Department of Energy, Washington, DC.
Document Type	Technical Report
NTIS Issue Number	200511