KHNP Installs Reactor Vessel of Shin-Wolsong Nuclear Unit
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2010.05.18
KHNP Installs Reactor Vessel of Shin-Wolsong Nuclear Unit 2
- Adopting a new technology for the first time in Korea
On May 18th, Korea Hydro & Nuclear Power Co., Ltd. (KHNP, President & CEO Jong-shin Kim) installed the reactor vessel of Shin-Wolsong Nuclear Unit 2 in the Shin Wolsong construction site at Yangbuk-myeon, Gyeongju-si. With this, the installation of main materials for Unit 2 is expected to begin in earnest.
Shin-Wolsong Units 1 and 2 use a new technology that is being employed for the first time ever in Korea: the inner structures of the reactor vessel are assembled first, and then the vessel is installed along with the installed coolant pipes. In addition, a new construction method was also applied for the first time in Korea: three layers of steel plate are lifted at once to install 15 layers of steel plate on the inner wall of the vessel building. In the past, two layers (140 tons) were lifted each time. As this new method can phenomenally reduce the period of construction, it is expected that it could increase our competitiveness in exporting nuclear power plants in the future.
As well, considering that Shin-Wolsong Units 1 and 2, which are now 72% completed, are a very large project with a total construction cost of about 4.7 trillion won and a daily input of up to 4,000 workers, the project is making a huge contribution to the revitalization of the local economy and the recovery of the nation’s construction economy. It is expected that Units 1 and 2 will be completed in March 2012 and January 2013, respectively.
Shin-Wolsong Units 1 and 2 are expected to produce about 16.4 billion kWh per year, which is the amount of electricity consumed in Ulsan for eight months.
In particular, Shin-Wolsong Units 1 and 2 are domestically designed and built with enhanced safety and maintenance, and form a 1,000 MW-level ‘Improved Korean Standard Nuclear Plant’ with enhanced economic feasibility and eco-friendliness by adopting the underwater intake and drainage method, for the first time in Korea.
For the Shin-Wolsong project, KHNP is in charge of comprehensive project management and start-up, Korea Power Engineering Company (KOPEC) is responsible for design, Doosan Heavy Industries & Construction is working on the production of reactor vessel equipment and turbine generators, and Daewoo E&C, Samsung C&T, and GS E&C are jointly executing the construction of the main facilities.
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