| 31. | The plant was closed in February 2002 for routine maintenance when inspectors found corrosion on the reactor vessel.
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| 32. | The reactor vessel is a steel cylinder with a diameter and height of, and a wall thickness of.
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| 33. | The blocks are stacked inside the reactor vessel into a cylindrical core with a diameter and height of.
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| 34. | However, the reactor vessel weighs 300 tons with the coolant inside, and that can pose some transportation difficulties.
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| 35. | But he was trapped in the reactor vessel compartment by a buildup in air pressure that jammed the hatches.
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| 36. | Greenpeace claims there are cracks in the reactor vessel larger than the safety limit, but offers no documentary evidence.
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| 37. | Almost certainly the hydrogen was formed inside the reactor vessel with the hydrogen subsequently vented into the containment building.
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| 38. | The core barrel and the reactor vessel wall form a cylindrical shell that is referred to as the downcomer.
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| 39. | The plant underwent refurbishment in 2006 by having its reactor vessel head, low pressure turbines and main transformer replaced.
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| 40. | After heating up in the core, pumps force the liquid fuel through heat exchangers positioned inside the reactor vessel.
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