31.10.2016
Novovoronezh NPP Information and Public Relations Administration
The Novovoronezh NPP: the team at the 7th power block under construction started installing the safety system’s crestal area
On October 29th, 2016, the first unraveled element of the passive heat removal system (PHRS) was installed at the 7th power block’s crestal area at the Novovoronezh NPP.
The PHRS is a passive nuclear power plant’s safety system. If there are no other electric power supplies, the PHRS facilitates long-standing heat removal from the reactor’s core into the atmosphere. The system operates based on natural circulation: when the natural air (the cooling essence) gets into the heat exchangers, it gets heated, rises up to the exhaust header at the top of the crestal area, and returns to the atmosphere.
The first element of the PHRS’ crestal area – the reflector – is installed at its project spot at the reactor room’s external protective cover (the +61.7 meters’ spot). The construction is a large metal cylinder weighing 160 tons and with a diameter of around 19 meters.
The elements of the PHRS’ crestal area were manufactured at the Novovoronezh NPP’s fabrication shop, with the pre-assembly taking place at the 7th power block’s construction site.
To replicate the expertise in manufacturing and pre-assembly of the PHRS’s crestal area metal works, the team of the Novovoronezh NPP’s fourth-order construction sticks to the Rosatom’s production system tenets.
“The operation of fixing the PHRS’ reflector to the crestal area took around 4 hours; however, this is just the first assembly. We will then install the second part of the filtering unit and connect these two parts. The PHRS will by fully installed by late December 2016”, Yury Semenov, the chief officer of AO Atomenergoproject’s construction department.
The 7th power block with a VVER-1200 reactor unit fully complies with the IAEA’s post-Fukushima standards. It is planned to be commissioned for commercial operation in 2019.
Since 2007, the innovative 6th and 7th power blocks with the capacity of 1200 megawatts each have been constructed at the Novovoronezh NPP’s site. The 7th power block is currently undergoing construction and assembly activities and is planned to be completed in 2018.
The Novovoronezh nuclear power plant is a branch of the JSC "Concern Rosenergoatom". The station is located on the bank of the Don River in 42 km to the south of Voronezh. It is the Russia's first nuclear power plant with VVER reactors (water-to-water power reactors of case type with regular water under pressure). Each of five reactors of the station can be a main one – a prototype of serial power reactors: the power unit No. 1 with the VVER-210 reactor, the power unit No. 2 with the VVER-365 reactor, the No. 3, 4 power units with the VVER-440 reactors, the power unit No. 5 with the VVER-1000 reactor. The first power unit was launched in 1964, the second – in 1969, third – in 1971, fourth – 1972, fifth – 1979. There are three power units (power units No.1, 2 were stopped in 1984 and 1990 respectively) in work at the moment.
The up-to-date information on the nuclear environment close to the Russian NOOs and other nuclear objects is available at www.russianatom.ru
Novovoronezh NPP Information and Public Relations Administration.
The PHRS is a passive nuclear power plant’s safety system. If there are no other electric power supplies, the PHRS facilitates long-standing heat removal from the reactor’s core into the atmosphere. The system operates based on natural circulation: when the natural air (the cooling essence) gets into the heat exchangers, it gets heated, rises up to the exhaust header at the top of the crestal area, and returns to the atmosphere.
The first element of the PHRS’ crestal area – the reflector – is installed at its project spot at the reactor room’s external protective cover (the +61.7 meters’ spot). The construction is a large metal cylinder weighing 160 tons and with a diameter of around 19 meters.
The elements of the PHRS’ crestal area were manufactured at the Novovoronezh NPP’s fabrication shop, with the pre-assembly taking place at the 7th power block’s construction site.
To replicate the expertise in manufacturing and pre-assembly of the PHRS’s crestal area metal works, the team of the Novovoronezh NPP’s fourth-order construction sticks to the Rosatom’s production system tenets.
“The operation of fixing the PHRS’ reflector to the crestal area took around 4 hours; however, this is just the first assembly. We will then install the second part of the filtering unit and connect these two parts. The PHRS will by fully installed by late December 2016”, Yury Semenov, the chief officer of AO Atomenergoproject’s construction department.
The 7th power block with a VVER-1200 reactor unit fully complies with the IAEA’s post-Fukushima standards. It is planned to be commissioned for commercial operation in 2019.
Since 2007, the innovative 6th and 7th power blocks with the capacity of 1200 megawatts each have been constructed at the Novovoronezh NPP’s site. The 7th power block is currently undergoing construction and assembly activities and is planned to be completed in 2018.
The Novovoronezh nuclear power plant is a branch of the JSC "Concern Rosenergoatom". The station is located on the bank of the Don River in 42 km to the south of Voronezh. It is the Russia's first nuclear power plant with VVER reactors (water-to-water power reactors of case type with regular water under pressure). Each of five reactors of the station can be a main one – a prototype of serial power reactors: the power unit No. 1 with the VVER-210 reactor, the power unit No. 2 with the VVER-365 reactor, the No. 3, 4 power units with the VVER-440 reactors, the power unit No. 5 with the VVER-1000 reactor. The first power unit was launched in 1964, the second – in 1969, third – in 1971, fourth – 1972, fifth – 1979. There are three power units (power units No.1, 2 were stopped in 1984 and 1990 respectively) in work at the moment.
The up-to-date information on the nuclear environment close to the Russian NOOs and other nuclear objects is available at www.russianatom.ru
Novovoronezh NPP Information and Public Relations Administration.
career
Innovations
Projects
INTERNATIONAL BUSINESS