Tag: Yucca Mountain

Contributor Post Created with Sketch. Recommended by Ricochet Members Created with Sketch. Counting the Cards in Nevada

 

President Trump is putting Nevada in play for the 2020 election. The Yucca Mountain nuclear waste storage project has always been a political hot potato and a hole in the ground into which Congress pours money. Senator Dean Heller, like Senator Reid before him, is opposed to the Yucca Mountain project, and there are likely not the votes to force the issue. Now the story in important Las Vegas news outlets is President Trump is on Nevada’s side.

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Promoted from the Ricochet Member Feed by Editors Created with Sketch. Ask The Expert: Spent Nuclear Fuel Handling and Storage

 

nuclear-basilisk A basilisk is a mythical creature able to kill with a single glance. Used or “spent” nuclear fuel would have a similar effect, if you were to stand close to it without benefit of shielding: Within a matter of minutes, you would receive a lethal radiation dose. Unlike basilisks, however, spent fuel isn’t out to get you, and is handled and stored safely at every nuclear power station in the United States. In contrast, new fuel that has never been loaded into a nuclear reactor has a very low — almost negligible level of radiation — and can be touched and directly handled without incurring any significant radiation dose.

The smallest unit of nuclear reactor fuel is a fuel pellet, a cylinder of compressed uranium dioxide, enriched to about 3 – 4.5% of the U-235 isotope. Each fuel pellet is less than half an inch in diameter and less than an inch long. Fuel pellets are loaded into a slender tube (called cladding) about 12 feet long, usually made of Zircaloy (a metallic alloy); the sealed tube is called a fuel rod, which looks similar to a wooden dowel. Fuel rods are arranged in an array called a fuel assembly. A boiling water reactor (BWR) has a 7 x 7 or 8 x 8 array of fuel rods running parallel to each other, in an assembly about five and a half inches square, about 14 to 15 feet long, weighing about 600 pounds; a typical boiling water reactor core holds between 500 and 600 such assemblies.

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