According to Kyodo news, the operator of the Fukushima No. 1 nuclear plant in northeast Japan has reported an abnormality after today's earthquake, the industry ministry said. The system to cool reactor cores in case of emergency stopped at the No. 1 and No. 2 reactors of the plant, which is run by Tokyo Electric Power, Kyodo quoted the ministry as saying.
Last time they had a prolonged nuclear shutdown, their oil /natural gas consumption went up a lot to compensate.
Not looking good. 10M tsunami on a port town.
Edit by adam2, this post and those following have been moved here from the news forum. I felt this deserved it own thread
Safety Systems
A BWR is similar to a Pressurized Water Reactor (PWR) in that the reactor will contiue to produce heat even after the fission reactions have stopped, which could make a core damage incident possible if there were not several redundant safety features built into the design of the reactor. A modern reactor has many Safety Systems that are designed with a defense in depth philosophy, which is a design philosophy that is integrated throughout construction and commissioning.
from wikipedia.
So the core needs secondary safety features after a cooling watre failure and emergency shut down to stop it overheating.
Utility TEPCO has requested the establishment of a nuclear emergency response programme for Fukushima Daiichi 1&3 and Fukushima Daini 1.
JAIF reported that Fukushima Daiichi 1, 2 and 3 automatically shut down; units 4, 5 and 6 were in maintenance outages. Fukushima Daini 1, 2, 3 and 4 automatically shut down.
JAIF has reported that TEPCO sent the emergency report because emergency diesel generators at the two sites are out of order. (Nuclear power plants need power to operate pumps and other emergency equipment, including equipment to remove decay heat from the reactor.) It also said that there have been no reports of radiation detected outside of the site. It said that an emergency headquarters has been set up and will issue information hourly.
.... because emergency diesel generators at the two sites are out of order.
Well, that's fecking typical. I was always sceptical about enforcement of safety regulations being enforced. Bloody local govt. backhanders to corporations.
Hmmm, not sure now. Pressure build up because they are having to use a secondary cooling system because the main one has failed.
Now planning a controlled release of radioactive steam
(Picked up from http://www.guardian.co.uk/world/2011/ma ... e-coverage at 19:36 UK time)
Hmmm, not sure now. Pressure build up because they are having to use a secondary cooling system because the main one has failed.
Now planning a controlled release of radioactive steam
(Picked up from http://www.guardian.co.uk/world/2011/ma ... e-coverage at 19:36 UK time)
Radiation levels near the damaged reactor said to be 8 times normal, source, BBC world service news.
10 KM evacuation zone confirmed. INFO IN THIS POST ALREADY OUTDATED, SEE POSTS BELOW
Last edited by adam2 on 11 Mar 2011, 21:59, edited 1 time in total.
"Installers and owners of emergency diesels must assume that they will have to run for a week or more"
