PHILIPPE PSAILA / SCIENCE PHOTO LIBRARY PHILIPPE PSAILA / SCIENCE PHOTO LIBRARY
Nuclear power station construction. Gloved workers inserting tubing into the top of a steam generator for a nuclear power plant. Thousands of such tubes will be inserted through holes in support plates. Steam generators are cylindrical structures (over 20 metres in height) used in pressurized water reactors (PWRs). Pressurized water, which has been heated by the nuclear reactor, passes into these thin tubes that will be surrounded by water. The heat boils this water, forming steam that rotates turbines to generate electricity. The pressurized (and radioactive) water is recycled to the reactor to be heated again. Photographed at the Framatome ANP facility at Chalon/Saint Marcel, France.
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