Nuclear reactor of new power unit launched at Leningrad NPP-2

At the Leningrad NPP-2, the nuclear reactor of the new power unit No. 2 was launched (according to a different classification - unit No. 6 of the Leningrad NPP). This was reported by the press service of the Rosenergoatom concern.

The company said that the launch of the reactor at the Leningrad nuclear power plant is one of the main events of recent years in the Russian nuclear power industry. After starting the reactor, specialists will conduct a series of experiments to confirm the reliability of the facility's safety system.

For the first time, the reactor plant was brought to the minimum controlled power level. This means that the neutron flux control equipment recorded a stable neutron power and a self-sustaining controlled nuclear reaction began for the first time in the reactor core.

- said in a statement.

In the future, after the experiments, the power of the reactor will be gradually increased, and in the fall it will be connected to the network with the issuance of the first kilowatt-hours. The commercial operation of the power unit is scheduled for early next year.

The Leningrad NPP is the largest in Russia in terms of the total installed electrical capacity (4200 MW) and the only one with two types of reactors: three operating RBMK-1000 power units and one modern generation VVER-1200 power unit. LNPP generates 30% of all electricity in the North-West of Russia.

Comments

[Civil]

All reactors of this type were built between 1976 and 1990 and were designed for a 30-year service life. Rosatom has repeatedly extended the operation of RBMK-1000 reactors after numerous checks and modernization works.

So the replacement of the "Chernobyl" reactors began.

[Ilya-spb]

So the replacement began long ago ...

Great news! Congratulations to the nuclear scientists!

I am surprised by the absence of "Yaroslavna's crying" from the neighbors - the Baltic states)))

[Bashkirkhan]

Another RBMK-1000 power unit will soon be shut down. There will be less one operating reactor of the "Chernobyl" type.

[Brturin]

Quote: Bashkirkhan

the RBMK-1000 power unit will be shut down. There will be less one operating reactor of the "Chernobyl" type.

acting less, but ...
Experts associate the most difficult problem with the withdrawal of the first and the rest of the LNPP-1 units with a graphite frame specific to the powerful uranium-graphite power reactor RBMK-1000 (a graphite cylinder of the reactor core, 7 m high and 11,8 m in diameter). According to Oleg Muratov, an independent member of the Public Council of Rosatom, there is no industrial technology for its disposal in the world. It is impossible to treat it in the same way as with fuel cells, since the radiation activity of the graphite frame is not less than that of fuel cells; if handled carelessly, a fire or even an explosion can occur, and it weighs 1700 tons. In different countries (France, USA, Great Britain , in Lithuania at the "Ignalina NPP"), where reactors of a similar, "graphite" type were shut down, such frames, according to Vladimir Pereguda, are simply mothballed until better times. Reactors of other types do not have such graphite beds, and therefore NPP units can be closed in a relatively short time almost to the level of the "green lawn"
www.rbc.ru/spb_sz/29/12/2018/5c2633749a7947f8833fc998

[Bashkirkhan]

Publication of how the life course of a nuclear power plant with RBMK ends on the example of the Ignalina station.
“The experience of the Ignalina NPP is interesting for its applicability in Russia, where the dismantling of 2030 RBMK units will begin by 8. Considering that Nukem has been owned by Rosatom since 2009, experience is gained for European money, and now this experience is being transmitted to other structures of Rosatom, which will carry out decommissioning RBMK ".
https://m.habr.com/ru/post/404351/

[Mimino]

We're not in a hurry. It will take 20-30 years, completely different levels of radiation will be.

[Spambox]

There is no solid frame there, inside the "L" scheme there is a graphite masonry square in cross-section from separate blocks with channels inside a cylindrical block. The graphite is extracted block by block and buried in the HAYAT. A block removed from generation is very expensive, so dismantling it is the right decision.

[Mountain shooter]

This will be the second VVER-2 reactor. And the installed capacity will be 1200 MW at LNPP-4.8. There will be 2 of them in total. RBMKs will be slowly decommissioned.

[antivirus]

LNPP has a separate basement - this is how the "reserve reactor" works. specialists train on a portable rector - they are waiting for the construction of an aircraft carrier, immediately ready to be stuck in the bowels of Sevmash