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Atommash Performs Hydraulic Tests of Reactor Pressure Vessel for Unit 1 of Akkuyu NPP in Turkey

Power News - Published on Wed, 15 Jul 2020

Image Source: ROSATOM Atommash Akkuyu NPP
The Volgodonsk Branch of JSC AEM-technology Atommash, part of the ROSATOM Engineering Division Atomenergomash, has successfully completed the hydraulic tests of the first reactor for the first power unit of the Akkuyu NPP under construction in Turkey. To carry out the final stage in the manufacturing process of the reactor pressure vessel, a special underground test bench is used - a caisson. A support ring was placed in it, on which, using a crane with a lifting capacity of 600 tons, the reactor pressure vessel was installed in the design position and closed with a process cover. Hydraulic tests were carried out in accordance with a special technology, during which a maximum pressure 24.5 MPa was generated in the reactor pressure vessel 1.4 times higher than the operating pressure.
According to the Director of the Volgodonsk branch of JSC "AEM-technology" Rovshan Abbasov, preparation for hydrotests of the reactor pressure vessel was carried out in difficult quarantine conditions. Despite this, Atommash specialists ensured accurate and high-quality execution of all necessary operations.

The reactor is a vertical cylindrical 334 tons-weight vessel with an elliptical bottom, inside of which the reactor core and internals are arranged. From above, the reactor is tightly sealed by a cover with the drives of mechanisms and control elements designed to regulate and protect the reactors and nozzles for outputting the cables of the sensors for on-site monitoring installed on it.

The Akkuyu NPP is the first nuclear power plant under construction in the Republic of Turkey. The Akkuyu NPP project includes four power units with Russian design VVER reactors of generation 3+. The capacity of each nuclear power unit will be 1,200 MW. To date, the project is fully funded by the Russian side. The construction of the "Akkuyu NPP" is the first project in the world nuclear industry, implemented according to the Build-Own-Operate model.

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Posted By : Yogender Pancholi on Wed, 15 Jul 2020
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