09.09.2016
Kolsk NPP Information and Public Relations Administration
The unique procedure of a reactor vessel recovery anneal has been completed at the Kolsk NPP’s 2nd power block
The procedure of a reactor vessel recovery anneal has been completed at the Kolsk NPP’s 2nd power block as a part of the program of its life extension. On September 8, 2016, the team of the nuclear power plant staff and JSC "Atomenergoremont" started disassembling the annealing oven.
The anneal procedure is a unique operation elaborated by Russian scientists and acknowledged all over the world as an effective way to ensure safe and reliable operation of a reactor installation. It has enabled to restore reactor vessel’s metal physical and mechanical properties that change over the course of time due to the radiation exposure.
Once the annealing oven is disassembled, the team at the 2nd power block will start sectioning (cutting metal samples for the reactor’s inner walls) to define the actual state of the metal and to confirm its life span.
The nuclear power experts are planning to cut 8 samples to send them to the National Research Center “Kurchatov Institute” where the specialists will go over those templates and deliver their verdict on whether the metal properties have been fully restored.
The sectioning will last for around 9 days, followed by scheduled maintenance activities at the 2nd power block.
The final report on the outcomes of the Kolsk NPP’s 2nd block reactor vessel anneal will be drafted and delivered in December 2017 jointly by the National Research Center “Kurchatov Institute” and OKB “GIDROPRESS”. Based on this report, the specialists will deliver their opinion on whether it is possible to extend the 2nd reactor’s vessel lifespan.
At the moment, the Kolsk NPP runs the 1st, the 3rd, and the 4th power blocks. According to the dispatch schedule, the nuclear power plant’s capacity is 1000 megawatts.
The Kolsk NPP is an affiliate of Rosenergoatom Concern JSC and is based 200 km to the south from the city of Murmansk, at the Imandra lakeside. The plant produces around 60% of the Murmansk Region electric power. It has 4 operational power blocks with VVER-type reactors, each of them having capacity of 440 megawatt. The Kolsk NPP supplies electric power to the Murmansk Region and Karelia.
The up-to-date information on the nuclear environment close to the Russian NOOs and other nuclear objects is available at www.russianatom.ru
Kolsk NPP Information and Public Relations Administration.
The anneal procedure is a unique operation elaborated by Russian scientists and acknowledged all over the world as an effective way to ensure safe and reliable operation of a reactor installation. It has enabled to restore reactor vessel’s metal physical and mechanical properties that change over the course of time due to the radiation exposure.
Once the annealing oven is disassembled, the team at the 2nd power block will start sectioning (cutting metal samples for the reactor’s inner walls) to define the actual state of the metal and to confirm its life span.
The nuclear power experts are planning to cut 8 samples to send them to the National Research Center “Kurchatov Institute” where the specialists will go over those templates and deliver their verdict on whether the metal properties have been fully restored.
The sectioning will last for around 9 days, followed by scheduled maintenance activities at the 2nd power block.
The final report on the outcomes of the Kolsk NPP’s 2nd block reactor vessel anneal will be drafted and delivered in December 2017 jointly by the National Research Center “Kurchatov Institute” and OKB “GIDROPRESS”. Based on this report, the specialists will deliver their opinion on whether it is possible to extend the 2nd reactor’s vessel lifespan.
At the moment, the Kolsk NPP runs the 1st, the 3rd, and the 4th power blocks. According to the dispatch schedule, the nuclear power plant’s capacity is 1000 megawatts.
The Kolsk NPP is an affiliate of Rosenergoatom Concern JSC and is based 200 km to the south from the city of Murmansk, at the Imandra lakeside. The plant produces around 60% of the Murmansk Region electric power. It has 4 operational power blocks with VVER-type reactors, each of them having capacity of 440 megawatt. The Kolsk NPP supplies electric power to the Murmansk Region and Karelia.
The up-to-date information on the nuclear environment close to the Russian NOOs and other nuclear objects is available at www.russianatom.ru
Kolsk NPP Information and Public Relations Administration.
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