The exhaust header structure – the first component of the passive heat removal system (PHRS) - has been installed on the dome of the first reactor building at the Novovoronezh II nuclear power plant. First criticality at unit 1 is schedule for the end of this year.
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| The exhaust header is lowered into place (Image: Atomenergoproekt) |
Atomenergoproekt said on 17 September this is the first time such a system has been installed at a Russian nuclear power plant.
In the event of a loss of on-site power supply, the PHRS provides long-term heat removal from the reactor core to the atmosphere using natural circulation.
The exhaust header structure is a metal cylinder 25 meters in diameter and 13 meters high.
Novovoronezh II is the lead project for the deployment of the AES-2006 design incorporating a Gidropress-designed pressurized water reactor, an evolutionary development from the VVER-1000. Construction of Novovoronezh II units 1 and 2 began in June 2008 and July 2009, respectively. The original Novovoronezh site nearby already hosts three operating reactors and two that are being decommissioned.
Researched and written
by ¶¶Òõ´«Ã½ÔÚÏß Nuclear News
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