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  • Shipments. Rosatom shipped a VVER-1200 reactor pressure vessel and two steam generators for Unit 8 of the Tianwan NPP. This key equipment weighing over 1,000 tonnes will be delivered to the construction site by road, river and sea. “Russian equipment manufacturers consider cooperation with Chinese companies to be an essential component of their development strategy. Today, China is a partner truly interested in an efficient and mutually beneficial implementation of joint projects,” said Igor Kotov, head of Rosatom’s power engineering division. Rosatom is involved in the construction of four Russian-designed power units with VVER-1200 reactors in China, two at Xudabao and two at Tianwan. The Tianwan NPP is the greatest economic cooperation project between Russia and China in the nuclear power industry. After the commissioning of Units 7 and 8, it will be the world’s largest operating nuclear power plant.
    Construction sites. Installation of the roof over the turbine hall was completed at Akkuyu Unit 2 in Turkey. The process took a little more than three months. The roof consists of nine pre-assembled trusses with a total weight of 1,142 tonnes. The trusses, each 61 meters long and weighing 95 to 175 tonnes, were pre-assembled on two designated stands and then lifted on top of the building by a Liebherr 13000 crawler crane. The installation of the roof trusses onto the turbine building required careful preparations and meticulous planning of construction operations as each truss must be installed with an accuracy of up to ten millimeters. Rosatom is building four power units with VVER-1200 reactors at Turkey’s Akkuyu NPP.
    FNPP. The World Association of Nuclear Operators (WANO) completed its peer review mission to the world’s only floating nuclear power plant (FNPP) Akademik Lomonosov. The experts assessed how the recommendations made by WANO in 2022 were addressed. The mission was conducted in two steps, with the inspection team first visiting the training center for FNPP operators and then the plant site. The team of Russian and Chinese experts spent a week analyzing technical documents, monitoring routine operations and interviewing the FNPP personnel. The experts concluded that the nuclear power plant showed good performance in every area. They also drafted measures to improve the safety and reliability of the plant.
    Construction sites. Horizontal moisture separator reheaters (MSRs) were installed at Unit 1 of Turkey’s Akkuyu Nuclear Power Plant. They are part of auxiliary systems of the plant’s steam turbine. The MSRs serve to maintain the temperature and humidity of steam that rotates the turbine blades. Horizontal MSRs, which used to be made vertical, were designed specially for the Akkuyu NPP. The improved modification made it possible to put two conventional MSRs into a single body, thus reducing their total number from four to two. In addition, the horizontal design requires almost half as much steel as conventional MSRs while being more efficient, reliable and cost-effective in general. Rosatom is building four power units with VVER-1200 reactors in Turkey.
    Shipments. Rosatom manufactured high- and low-pressure wedge gate and swing check valves for the Rooppur NPP and shipped them to Bangladesh. The shipment includes 294 pieces with a total weight of 312 tonnes. The valves will be used in the reactor buildings and turbine halls of Rooppur Unit 1 and 2. The products are designed to withstand high loads, including pressure up to 12 MPa and temperature of about 300°C. The valves belong to safety classes 2, 3 and 4. Before shipment, they passed a series of factory trials, including pneumatic, hydraulic and vacuum pressure tests. The Rooppur NPP is being constructed 160 km away from Bangladesh’s capital Dhaka. The plant will have two Russian-designed VVER-1200 reactors with a total capacity of 2,400 MW.
    Cooperation. Rosatom will present its advanced nuclear power solutions at the 8th Russia-China Expo to be held in Harbin in late May. The event is timed to coincide with the 75th anniversary of the establishment of diplomatic relations between Russia and China. Rosatom’s booth will feature solutions for large and small-scale nuclear generation, floating nuclear power plants, fast neutron reactors, wind generation, nuclear medicine, and other applications. The key areas of cooperation between Rosatom and China include the construction of power reactors, nuclear fuel supplies to China, development of fast neutron technology, and solutions for the closed nuclear fuel cycle. Rosatom is involved in the construction of four Russian-designed power units with VVER-1200 reactors in China, two at Xudabao and two at Tianwan.
    Construction sites. In early May, a containment airlock was installed at Unit 1 of Turkey’s Akkuyu Nuclear Power Plant. It is a 14-meter cylinder-shaped chamber with gates on both sides. Since the gates open in sequence, they make the reactor containment airtight. The airlock is intended to bring operation and maintenance equipment inside the reactor building. When the nuclear power plant is in operation, it will be also used to deliver fresh nuclear fuel containers into the reactor containment and remove spent fuel casks. The airlock weighs 260 tonnes and is 7 meters in diameter. The Akkuyu Nuclear Power Plant will have four units with Russian-designed VVER-1200 reactors with a capacity of 1,200 MW each.
    Space. Russia has put another Arktika-M satellite with an on-board control system into operation. Developed at Rosatom’s Mars Experimental Design Bureau, Arktika-M No. 2 is the second spacecraft of the world’s only highly elliptical orbit (HEO) constellation of meteorology and hydrology satellites. The Arktika-M constellation provides round-the-clock monitoring of the Earth’s surface, cloud cover, and seas in the Arctic and adjacent regions. It supplies the Northern Sea Route operator with up-to-date information on the ice conditions and helps choose the safest route. Arktika-M also transmits positioning signals from aircraft and vessels in distress to emergency teams as part of the Cospas-Sarsat international search and rescue system.
    Manufacturing. AEM SpetsStal (part of Rosatom’s power engineering division) commenced with the manufacturing of reactor equipment for Unit 1 of Hungary’s Paks II nuclear power plant. “We are working to ensure that the new power units at Paks will be connected to the grid by the early 2030s. The work is simultaneously underway at the construction site in Hungary and thousands of kilometers away from it, in Saint Petersburg. It is important for us, after the start of casting, to have closely watched the initial stages of production of RPV shells,” Paks II Chairman and CEO Gergely Jákli said during the production commencement ceremony. The shells are essential structural elements of the reactor pressure vessel. They are empty cylinders that are welded together. Rosatom is building two power units with VVER-1200 reactors at the Hungarian Paks II NPP. First concrete for Unit 1 is scheduled to be poured before the year-end.