Visnews July 1 filmed construction of the world's largest atomic power station, at Hinkley Point, near Stogursey, Somerset, UK, and the 240-ft.
Visnews July 1 filmed construction of the world's largest atomic power station, at Hinkley Point, near Stogursey, Somerset, UK, and the 240-ft. high "Goliath" crane capable of lifting 400 tons, also claimed as the largest in the world.
The power station, with an output of 500 mw., will have two reactors, fuelled with natural uranium. Spherical pressure vessels will operate at a pressure of 180 lb. per square inch; - 67 ft. in diameter made on the site from steel plate 3 inches thick - they will be enclosed in a biological shield of rein forced concrete 7 ft. thick and 90 ft. high.
Heat produced in the reactor is carried away by carbon dioxide gas to six heat exchangers connected with the turbine house. Most of the turbine house area has been reclaimed from the shore by means of a concrete sea wall over 3000 ft. long.
In operation the plant will require some 35 million gallons of sea water per hour for cooling purposes, and towards the end of June provision for the necessary sea-water intake was taken a stage further when a huge concrete platform, weighing 4000 tons, was towed three-quarters of a mile out into the Bristol Channel, off Hinkley Point, and anchored on steel legs built into the seabed. It will provide intake value and is to be connected to the intake tunnel below the seabed. According to estimates, the temperature of the Bristol Channel in this area will be raised by 15 degrees when cooling, operations begin.
The first half of the power station will go into operation in 1961, the whole station being completed by late 1962.