The Volgodonsk Branch of “AEM-technology" in Russia has completed feeding with SG tubes of the first steam generator for the Rooppur Nuclear Power Plant, said Rosatom, the Russian contractor of the project.
The RNPP is designed and built according to the Russian project. The plant will consist of two power units each with a capacity of 1200MW. Each unit will host a generation 3+ VVER-1200 reactors.
AEM-technology is part of Atomenergomash, machine building division of Russia's state atomic energy corporation - Rosatom.
In a statement, Rosatom said the nuclear power plant will have four such steam generators in each of its two units.
A steam generator is a heat exchanger which is about 14 meters long, over 4 meters in diameter and weighs 350 tonnes.
Rosatom said it took 22 days for specialists to perform orderly mounting of the elements, including tube bundle inside the steam generator vessel. The tube bundle was formed of 11,000 coils.
Experts performed a bending of stainless tubes into coils of various dimensions, followed by their cutting, grinding and tests. Coils were installed following a special design; ends of the tubes were connected to the primary circuit collectors, the Russian nuclear agency said.
The next stage of manufacturing involves welding of the bottoms. The equipment will be subjected to hydraulic and a whole range of other tests, including Eddy Current Test of SG tubes.
Atomenergomash is the sole manufacturer and supplier of all equipment for Reactor Compartments and major part of equipment for Turbine Islands in both the units of Rooppur Nuclear Power Plant, said Rosatom.