{"id":10340,"key":"Boiling_water_reactor","title":"Boiling water reactor","latest":{"id":1206052,"timestamp":"2025-11-27T19:25:56Z"},"content_model":"wikitext","license":{"url":"https://www.appropedia.org/Appropedia:Copyrights","title":"CC-BY-SA-4.0"},"source":"[[File:Boiling-water-reactor-core-simple-DE.svg|thumb|Boiling-water-reactor-core-simple-DE]]\n\n''' Boiling Water Reactor '''\n\nA boiling water reactor (BWR) is a type of [[nuclear energy]] reactor. The central part of the plant is the reactor \"core\" in which the uranium fuel is assembled for the generation of steam for the turbine generator. In a typical BWR, there are about 35,000 fuel rods containing about 120 tons of [[uranium]] fuel.\n\n== Purposes ==\n\nThe water that surrounds the fuel rods in the reactor serve two purposes.\n\n# To carry away the heat energy produced in the [[fission]] process.\n# To moderate (slow down) the neutrons produced in the [[fission]] reaction.\n\n== Moderator ==\n\nA moderator is a substance used in nuclear reactors to slow down neutrons so they can be more readily captured by 235U and produce fission, usually water.\n\n== Types of Light Water Reactors ==\n\n# Boiling Water Reactors (BWR)\n# Pressurized Water Reactors (PWR)\n\n99% of commercial nuclear power in the U.S. and 80% of that in the world is produced by these two types of reactors.\n\n{{Page data\n| license = CC-BY-SA-3.0\n}}\n\n[[Category:PH261]]\n[[Category:Energy]]"}