MHI Delivers Two Replacement Steam Generators At Electrabel GDF SUEZ’s Doel Nuclear Power Plant in Belgium

Nuclear Steam Generators

Mitsubishi Heavy Industries, Ltd. has delivered two replacement steam generators (RSG), a core component of pressurized water reactor (PWR) nuclear power plants (NPP), for the Doel-1 NPP in Belgium operated by Electrabel GDF SUEZ, a leading European energy company. MHI received the order for the RSGs in February 2006 in line with the NPP’s component renewal initiative. With the latest deliveries, MHI RSGs now account for over half of all SGs operated in Belgium – 10 of 19 at seven NPPs.

Doel-1, a 392.5 MW PWR NPP, which is scheduled to be uprated, is located near the port city of Antwerp, north of Brussels. The facility began commercial operation in 1975 and, after more than 30 years in service, has been in need of renewal. The RSGs were manufactured at MHI’s Kobe Shipyard and Machinery Works and play a crucial role in PWRs by transferring the thermal energy generated in the reactor vessel to a secondary coolant and feeding the resulting steam to a turbine system to generate electricity.

To date MHI has delivered three RSGs each to the Electrabel GDF SUEZ Tihange-1 and Tihange-2 NPPs*3, respectively in 1995 and 2001, and two RSGs to the Doel-2 NPP in 2004. In total the company has processed overseas orders for 28 RSG units, mainly from North America and Europe. The total rises to 122 units when SGs and RSGs for the domestic market are included. By providing RSGs and other replacement components, MHI has helped extend the operational life and boost the safety and economic efficiency of existing PWR NPPs both in Japan and abroad.

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