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Public opposition to atomic energy has hardened in the intervening years, as the government and Tokyo Electric Power Co. struggle to bring the stricken plant’s reactors under control.
There is a general acceptance that Japan, which shut down its last functioning nuclear reactor in September, will need to restart its nuclear plants in the short term, but the disaster has focused new attention on alternative - and safer - forms of energy.
Shimizu first came up with its Luna Ring proposal before the accident at Fukushima, but the ongoing crisis means it is attracting renewed interest.
reply to post by wishes
I don't see any mention of MOX fuel assemblies?
Was there an earlier story about MOX assemblies being removed first, for the investment recovery? CASH $$$
So wish there was other sources for information...
(3) Outline Plan for Plutonium Utilization in Light Water Reactors (MOX utilization) Plutonium utilization in light water reactors refers to utilizing plutonium in the present nuclear power plants (light water reactors) using MOX fuel, which mixes uranium with plutonium. The electric power industry as a whole is planning to start up the utilization of MOX fuel in 16 to 18 LWR plants by FY 2015. The plan for MOX fuel utilization in LWRs will play a vitally important role in securing a stable supply of energy in Japan, a resource poor country, in the future
Unit 2, 3 & 4 ponds are about 12 x 10 metres, with 1240, 1220 and 1590 assemblies capacity respectively (unit 1 is about 12 x 7 m, 900 assemblies). Unit 4 pond contains a total 1331 used assemblies (783 plus full fuel load of 548), giving it a heat load of about 3 MW thermal, according to France's IRSN, which in that case could lead to 115 cubic metres of water boiling off per day, or about one tenth of its volume.
Other estimates put the heat load at 2 MW. Unit 3's pool contains 514 fuel assemblies, unit 1 has 292 and unit 2 has 587, giving it a heat load of 1 MW.
There is no MOX fuel in any of the ponds.
Unit 4 pond also has 204 fresh fuel assemblies which were ready for loading. In 2012 some of these were removed and checked, and found to be undamaged.
reply to post by Human0815
The 220 new unused fuel assemblies, could they have been MOX?
Reactor 3 was using MOX, they had the rods to refuel #4 after the repair, was that MOX or is that MOX?
The 220 unused assemblies they are removing first?
"The first two units, Genkai-3 and Ikata-3, began operations with MOX fuel in November 2009 and March 2010 respectively. Use of MOX fuel in light-water power reactors is part of Japan's "pluthermal" program, which plans to have 16-18 reactors using MOX fuel by 2015. "
Wiki- Fukushima Daiichi
At the time of the accident, the units and central storage facility contained the following numbers of fuel assemblies:
Location Unit 1 Unit 2 Unit 3 Unit 4 Unit 5 Unit 6 Central Storage Reactor
Fuel Assemblies 400 548 548 0 548 764 0
Spent Fuel Assemblies 292 587 514 1331 946 876 6375
Fuel UOx UOx UO2/MOX UOx UOx UOx UO2/MOX
New Fuel Assemblies 100 28 52 204 48 64 N/A
reply to post by wishes
The MOX in 3 is where "we" mostly believed the detonation took place in the SFP when 3 exploded.
Even Arnie was behind that theory.
Of course, THAT generated a LOT of arguments, but the evidence is too great to ignore.
As the country song goes, "I'm digging up bones, I'm digging up bones, exhuming things that are better left alone".