Thinking more than a couple of days ahead is not one of humankind’s greatest strengths, especially not beyond the scale and scope of our immediate surroundings.
I agree. Your summary of the human place in creation is encompassing. We can’t escape ourselves or natural laws. In the end it comes down to being alive in the moment of existence one has. The forces that drive history overwhelm the living creatures within it.
If you don’t cool the spent fuel, the temperature will rise and there may be a swift chain reaction that leads to spontaneous combustion–an explosion and fire of the spent fuel assemblies. Such a scenario would emit radioactive particles into the atmosphere. Pick your poison. Fresh fuel is hotter and more radioactive, but is only one fuel assembly. A pool of spent fuel will have dozens of assemblies.
One report from Sankei News said that there are over 700 fuel assemblies stored in one pool at Fukushima. If they all caught fire, radioactive particles—including those lasting for as long as a decade—would be released into the air and eventually contaminate the land or, worse, be inhaled by people. “To me, the spent fuel is scarier. All those spent fuel assemblies are still extremely radioactive,” Dalnoki-Veress says.
It has been known for more than two decades that, in case of a loss of water in the pool, convective air cooling would be relatively ineffective in such a “dense-packed” pool. Spent fuel recently discharged from a reactor could heat up relatively rapidly to temperatures at which the zircaloy fuel cladding could catch fire and the fuel’s volatile fission product, including 30-year half-life Cs, would be released. The fire could well spread to older spent fuel. The long-term land-contamination consequences of such an event could be significantly worse than those from Chernobyl.
Japan’s chief cabinet secretary called it “the devil’s scenario.” Two weeks after the 11 March 2011 earthquake and tsunami devastated the Fukushima Daiichi Nuclear Power Plant, causing three nuclear reactors to melt down and release radioactive plumes, officials were bracing for even worse. They feared that spent fuel stored in pools in the reactor halls would catch fire and send radioactive smoke across a much wider swath of eastern Japan, including Tokyo.
The Chernobyl accident was relatively minor, involved no spent fuel ponds, and was controlled by pouring cement onto the reactor. This was breaking down so a few years back they re-entombed.
Estimates of the cancer burden in Europe from radioactive fallout from the Chernobyl accident
Thank you B🙏 I was out a little while ago and saw swans falling in love and doing their itertwined swimming dance. It was beautiful.
That has enabled me to see it more in perspective, which helps. Thank you.
I agree. Your summary of the human place in creation is encompassing. We can’t escape ourselves or natural laws. In the end it comes down to being alive in the moment of existence one has. The forces that drive history overwhelm the living creatures within it.
There are 4000 Spent Fuel Ponds Around the Globe…
If you don’t cool the spent fuel, the temperature will rise and there may be a swift chain reaction that leads to spontaneous combustion–an explosion and fire of the spent fuel assemblies. Such a scenario would emit radioactive particles into the atmosphere. Pick your poison. Fresh fuel is hotter and more radioactive, but is only one fuel assembly. A pool of spent fuel will have dozens of assemblies.
One report from Sankei News said that there are over 700 fuel assemblies stored in one pool at Fukushima. If they all caught fire, radioactive particles—including those lasting for as long as a decade—would be released into the air and eventually contaminate the land or, worse, be inhaled by people. “To me, the spent fuel is scarier. All those spent fuel assemblies are still extremely radioactive,” Dalnoki-Veress says.
It has been known for more than two decades that, in case of a loss of water in the pool, convective air cooling would be relatively ineffective in such a “dense-packed” pool. Spent fuel recently discharged from a reactor could heat up relatively rapidly to temperatures at which the zircaloy fuel cladding could catch fire and the fuel’s volatile fission product, including 30-year half-life Cs, would be released. The fire could well spread to older spent fuel. The long-term land-contamination consequences of such an event could be significantly worse than those from Chernobyl.
http://science.time.com/2011/03/15/a-new-threat-in-japan-radioactive-spent-fuel/
Japan’s chief cabinet secretary called it “the devil’s scenario.” Two weeks after the 11 March 2011 earthquake and tsunami devastated the Fukushima Daiichi Nuclear Power Plant, causing three nuclear reactors to melt down and release radioactive plumes, officials were bracing for even worse. They feared that spent fuel stored in pools in the reactor halls would catch fire and send radioactive smoke across a much wider swath of eastern Japan, including Tokyo.
https://energyskeptic.com/2017/the-devils-scenario-near-miss-at-fukushima-is-a-warning-for-u-s/
The Chernobyl accident was relatively minor, involved no spent fuel ponds, and was controlled by pouring cement onto the reactor. This was breaking down so a few years back they re-entombed.
Estimates of the cancer burden in Europe from radioactive fallout from the Chernobyl accident
https://pubmed.ncbi.nlm.nih.gov/16628547/