Icebreakers

Surfacing on the shell of the first RITM-400 reactor was completed at ZiO-Podolsk

JSC ZiO-Podolsk (part of the machine-building division of the State Corporation Rosatom - JSC Atomenergomash) has completed the next stage of manufacturing the first reactor plant RITM-400 for the latest icebreaker Leader of project 10510.
Automatic surfacing of an anticorrosion coating on the internal the surface of the body part - the shell with nozzles. The technological operation is performed by a strip electrode under a flux layer. This method of surfacing has a high productivity - an average of 24 kg of deposited metal per hour. The process of automatic surfacing lasts an average of 21 days. Work is carried out continuously in three shifts. The total mass of deposited metal is approximately 1.5 tons. Anti-corrosion surfacing will protect the base metal during the entire service life of the equipment.
Next, the part will be sent for machining, control operations and pre-assembly.

For reference:
"RITM-400" is 1.8 times more powerful than "RITM-200", which allows the nuclear icebreaker "Leader" to have improved performance. In particular, it will be able to break through ice up to 4.3 meters thick and lay a channel up to 50 meters wide. As a result, the Leader-class icebreakers will be able to fulfill the main task of providing year-round navigation along the Northern Sea Route and conducting expeditions to the Arctic, including large-capacity vessels. The thermal power of the RITM-400 reactor plant has been increased to a record 315 MW.

Hole wrote:These ships will work inside russian waters so there is no need to go to "green" LNG.

Atomflot announces tender for feasibility study of refueling complex intended for nuclear icebreakers of 22220 and 10510 designs

The initial contract price exceeds RUB 25 million

FSUE Atomflot (part of State Atomic Energy Corporation Rosatom) has announced a tender for the right to conduct a feasibility study under the project on creation of a complex for refueling nuclear-powered ships of 22220 and 10510 designs, maintenance of refueling equipment and facilities for installation/removal of RITM-200 and RITM-400 reactor units’ steam generator cassettes. Only small and medium-sized business entities can participate in the tender, according to the official portal for public procurement.

The initial contract price is RUB 25,654,900. The bidding deadline is set on September 19 with the results to be announced by 3 October 2022.

According to the terms of reference, “in view of construction and deployment of new nuclear-powered icebreakers of Project 22220 and Project 10510, FSUE Atomflot needs to create a complex for refueling of nuclear icebreakers and a shore-based facility for storage and maintenance of core refuelling equipment and facilities for installation/removal of RITM-200 and RITM-400 reactor units’ steam generator cassettes.

The complex will be located in Murmansk. Apart from the storage and maintenance facilities it will include a 160-tonne portal crane and other equipment, transport infrastructure facilities, systems and utilities required for refueling of nuclear icebreakers and for ensuring physical security, radiation/industrial/fire safety.

The successful bidder will collect the basic information, survey the facilities, conduct engineer survey, draft design specifications for organizing of the required tender.

Multipurpose nuclear-powered icebreakers of Project 22220 are the world’s largest and most powerful icebreaking ships. Their key task is to ensure year-round navigation in the western Arctic. Icebreakers of 22220 design will form the basis of Russia’s civil icebreaking fleet in the near time. FSUE Atomflot ordered four icebreakers of Project 22220 to Baltiysky Zavod shipyard. The lead icebreaker named Arktika and the first serial icebreaker Sibir have been put into operation.

Zvezda shipyard (Bolshoy Kamen, Primorsky Territory) commenced steel cutting for the lead nuclear-powered icebreaker of Project 10510 (ЛК-120Я, Leader) on 6 July 2020. The state customer under the shipbuilding contract is Rosatom, builder – FSUE Atomflot, sole contractor - SC Zvezda. At least three icebreakers of this design are to be built with the lead ship to be put into operation in December 2027. Two more icebreakers are to be laid down in 2023 and 2025 with the commissioning scheduled for 2030 and 2032 accordingly.

FSUE Atomflot is a part of State Atomic Energy Corporation Rosatom. It runs the unified complex of Russia’s nuclear-powered civil ships. Atomflot’s fleet currently consists of two nuclear icebreakers with twin-reactor nuclear power plants of 75 thousand h.p. design capacity (the Yamal, and the 50 Let Pobedy), 2 nuclear icebreakers with single-reactor nuclear facilities of approximately 50 thousand h.p. (the Taymyr, and the Vaygach) and a nuclear-powered container carrier Sevmorput. Besides, the company’s fleet includes two floating maintenance bases (the Imandra and the Lotta), a special tanker for liquid radioactive waste (the Serebryanka), a multifunctional container carrier (the Rossita).

Big_Gazza wrote:RITM-400 sounds ideal for a future Russian CVN, should they decide they want one (or several).  Thermal output (315Mwt) is a little under half that of the Murkan A1B (~ 700MWt) powering the Ford-class white elephants, but it's a more than adequate basis for any conceivable large naval vessel.

Podlodka77 wrote:BMPD

Nuclear-powered icebreaker "Ural" went on trial




According to JSC United Shipbuilding Corporation (USC), on October 14, 2022, the new nuclear icebreaker Ural of project 22220 (LK-60Ya), built at JSC Baltiysky Zavod (part of USC), left St. the first stage of sea trials.


From the side of bmpd, we point out that the Ural is the third built nuclear icebreaker of project 22220 (LK-60Ya). Its construction was carried out under a contract signed on May 29, 2014 by Baltiysky Zavod - Shipbuilding LLC with the state corporation Rosatom for the construction of two serial nuclear icebreakers of project 22220 (LK-60Ya) for the Federal State Unitary Enterprise Atomflot with a total cost of 84.4 billion rubles. The first icebreaker under this contract (and the second in the series) Sibir (building number 05707) was laid down at the Baltic Shipyard on May 26, 2015, launched on September 22, 2017 and put into operation on December 24, 2021.

The laying of the next icebreaker under this contract "Ural" (building number 05708) was carried out at the Baltic Shipyard on July 25, 2016. The launch was made on May 25, 2019.

Earlier, the Baltic Shipyard built the lead universal nuclear icebreaker Arktika (building number 05706) of project 22220 (LK-60Ya) under a contract worth 36.959 billion rubles with the state corporation Rosatom for FSUE Atomflot, concluded on August 20, 2012. The lead icebreaker Arktika was laid down on November 5, 2013, launched on June 16, 2016, entered factory sea trials on December 12, 2019, and the acceptance certificate of the Arktika icebreaker was signed on October 21, 2020 in Murmansk.

The developer of project 22220 is PJSC Iceberg Central Design Bureau. Project 22220 icebreakers are equipped with a new type RITM-200 two-reactor nuclear power plant with a capacity of 60 MW on shafts developed by OKBM Afrikantov and are the largest and most powerful icebreakers in the world. The length of the icebreaker of this project is 173.3 meters, width - 34 meters, draft at the design waterline - 10.5 meters, minimum working draft - 8.55 meters. The displacement will be 33.54 thousand tons.

According to the terms of the contracts, the construction of the lead icebreaker Arktika was to be completed by December 30, 2017, the icebreaker Sibir in December 2019, and the third icebreaker Ural in December 2020. However, later, as a result, the deadlines for the commissioning of the icebreakers Sibir and Ural were postponed, and in fact serial ships are delivered with a delay of two years.

In August 2019, JSC Baltiysky Zavod received a contract worth about 100 billion rubles for the construction of the fourth and fifth universal nuclear icebreakers of project 22220 (LK-60Ya). The commissioning of the icebreakers, which have been named Yakutia and Chukotka, is scheduled for 2024 and 2026. The nuclear icebreaker Yakutia (building number 05709) under this contract was laid down at JSC Baltiysky Zavod on May 26, 2020, and the nuclear icebreaker Chukotka (building number 05712) was laid down there on December 16, 2020.

Podlodka77 wrote:The full displacement of those icebreakers will be a little over 70,000 tons, so you're

I am convinced that a surface warship of that displacement and with the RITM-400 would have a higher speed than an icebreaker because an icebreaker is designed to break ice and not to be as fast as possible.