Dungeness Nuclear Power Station: | | | Dungeness A Nuclear Power Station | | | ... World Heritage Encyclopedia, the aggregation of the largest online encyclopedias available, and the most definitive collection ever assembled. At Dungeness in Kent The Nuclear Power Group has built a 550 MW nuclear power station, Dungeness A for the Central Electricity Generating Board. LONDON (Reuters) - EDF Energy has extended outages at the two reactors at Britain's Dungeness B nuclear power plant to July, the company's outage website showed. The £89 million contract was awarded in August 1965 to Atomic Power Construction ('APC'), a consortium backed by Crompton Parkinson, Fairey Engineering, International Combustion and Richardsons Westgarth. Construction of Dungeness B started in 1965. that the hurricane of 1987 did not bring the sea to the stations because there was a low tide at the time.  By 1979 the cost had risen further to Â£410 million. generator:output:electricity: 600 MW: generator:source: nuclear: generator:type: AGR: name: Dungeness B Reactor 2: note: the reactor numbers are just a guess, may need to be swapped: power: generator: … Dungeness B is situated near Romney Marsh, Kent on the south east coast of England.  Serious problems were also discovered with the design of the boilers, which had to withstand the pounding of hot carbon dioxide (CO2), pressurised to 600 pounds per square inch (4,100Â kPa) and pumped around the reactor coolant circuit by massive gas circulators. It has been conjectured[who?] Further stations at Heysham and Connah’s Quay are under consideration.  The reactors were supplied by TNPG and the turbines by C. A. Parsons & Co. There were originally four Ã 142.5 MW turbo-alternators, these were later down-rated to 106 MW machines. No need to register, buy now! The ONR classified this as a level 2 incident on the International Nuclear Event Scale. Dungeness nuclear power station comprises a pair of nuclear power stations, one of which is still operational, located on the Dungeness headland in the south of Kent, England. Dungeness B Power Station Visitor Centre: fantastic snenery - See 108 traveler reviews, 14 candid photos, and great deals for Dungeness, UK, at Tripadvisor. During heat treatment of the tubes at temperatures up to 1,050°C, the galvanising zinc diffused into the tubes and made them brittle.  By 1979 the cost had risen further to £410 million. Unit B21 was restarted in August 2010. KentLive newsletter: We bring the stories to you By completion the cost had risen to £685 million, four times the initial estimate in inflation-adjusted terms. Quite the same Wikipedia. , On 31 December 2006 the A station ceased power generation. A fleet of lorries is used to continuously maintain shingle sea defences for the plant as coastal erosion would otherwise move shingle away at an estimated rate of 6 m per year. All Instrument Types. The headland and the coastline between Pett Level and Hythe are volatile. Weight of graphite in core and reflector: 1,123 It was decided to replace them with components made from a new material. , The site provides a key plot point in the 2016 book, Alan Partridge: Nomad. In all, 90,000 cubic metres are moved each year along parts of the coast between Pett Level and Hythe. In 1983, a more powerful new inverter at Sellindge replaced this facility. Problems with the construction of the pressure vessel liner had distorted it, so that the boilers, which were to fit in an annular space between the reactor and the pressure vessel, could not be installed, and the liner had to be partially dismantled and rebuilt.  The site was ruled out by Secretary of State for Energy and Climate Change Chris Huhne in October 2010 with the former government's list of eleven potential sites reduced to eight. Sandpiper. It seems that deposition on the north shore of the headland does not keep pace with erosion, although the power stations are about 1 km to the west of that shore. The £89 million contract was awarded in August 1965 to Atomic … Dungeness nuclear power station. The operators claimed that this amounted to a saving of 3.4 million tonnes of CO2. The Times, Tuesday, 10 December 1968; pg. The Torness AGR plant on the Lothian coastline of Scotland, 60 km east of Edinburgh, The stations are built on a large area of open shingle, measuring 12 km by 6 km, which has been deposited by the sea and built up over thousands of years. They were refuelling reactor 21 a the time. 19; Issue 58623; col C, The Times, Thursday, 6 November 1975; pg. In recorded history Walland Marsh to the west of the power stations has been flooded. It was the first commercial advanced gas-cooled reactor to commence construction (1965) and started generating power in 1983. , In March 2009, serious problems were found when Unit B21 was shut down for maintenance, and the reactor remained out of action for almost 18 months.  As of August 2020, the shut down of units B21 and B22 has been extended to December 2020 after being taken offline in September 2018. In recorded history Walland Marsh to the west of the power stations has been flooded. 19; Issue 58623; col C, The Times, Thursday, 6 November 1975; pg. A safety case has been agreed by the Nuclear Installations Inspectorate (NII), that no outage is required on reactor R1 this year. reactors have been built, located at 6 different sites and seven stations, Figure 1.1. and Table 1.1. The two reactors at the plant have been offline since late summer 2018 as the company has been carrying out inspections and maintenance of pipes carrying steam to the turbine. , In 2015 Dungeness B produced 4.4 TWh of energy. Dungeness B is an advanced gas-cooled reactor (AGR) power station consisting of two 1496 MWtreactors, which began operation in 1983 and 1985 respectively, and have been non-operational since 2018 due t… Around 100 million litres of cooling water are extracted and returned to the sea each hour, after being heated by 12 deg Celsius (22 deg F). Dungeness reactor shut down for £25m maintenance. The Â£89 million contract was awarded in August 1965 to Atomic Power Construction ('APC'), a consortium backed by Crompton Parkinson, Fairey Engineering, International Combustion and Richardsons Westgarth. , In 2005, the station's accounting closure date[clarification needed] was extended by ten years, which would allow it to continue operating until 2018, 35 years after first power generation. A fleet of lorries is used to continuously maintain shingle sea defences for the plant as coastal erosion would otherwise move shingle away at an estimated rate of 6 m per year. Both reactors at Dungeness B are currently (January 2019) shutdown as part of the licensees ongoing recovery program. Huge collection, amazing choice, 100+ million high quality, affordable RF and RM images. Home/Information Library/Facts and Figures/Reactor Database/ DUNGENESS A-1. 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