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Japan Earthquake/Tsunami

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Matt Damon said:
Not all of Japan's been affected. The south west of the country hasn't been.

A Chinook could lift two of these things into position in one trip.

The UK has several auxiliary power systems put away, or with contractors as part of UK Resilience - i.e. contingency planning and preparation these can be moved around.

Corporate telephone exchanges are required by law to have generators with 5 days power
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Ok understand a little better now, it does say on the BBC site that the emergency diesel gen-sets were out of order
 
Tepco said the reactors shut due to the loss of offsite power due to the malfunction of one of two off-site power systems. That triggered emergency diesel generators to startup and provide backup power for plant systems.

About an hour after the plant shut down, however, the emergency diesel generators stopped, leaving the units with no power for important cooling functions.


Are these not what you are discussing
 
If that's the case then i think Matt will be right someone,somewhere should pay,in jail time,as this surely now amounts to gross negligence
 

everton_de_vina_del_mar said:
Tepco said the reactors shut due to the loss of offsite power due to the malfunction of one of two off-site power systems. That triggered emergency diesel generators to startup and provide backup power for plant systems.

About an hour after the plant shut down, however, the emergency diesel generators stopped, leaving the units with no power for important cooling functions.


Are these not what you are discussing
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What sort of back up system - fails?

And what back up do they have to their backup failing?

I don't mean on site, I mean off site that could be brought in quickly if the backup fails?

The system should be modular. So if I want to bring in generator X it will always work with power plant Y



This is why there will be litigation following this. Since basic errors seem to of been made , thinking that an overwhelming event might not damage an entire site.

Basic emergency planning. Hence the need for litigation.
 
The earthquake cut off power to at least one of the nuclear plants, the Fukushima plant, and backup generators failed after an hour, forcing local governments to bring in mobile generators. Even after an automatic shutdown, the reactors must be cooled—and without power, cooling water cannot be circulated. [Update: A backup cooling system that uses batteries can temporarily delay overheating.] There have been reports that enough water remains in the reactors for cooling, and to prevent the nuclear fuel from being exposed

Hate to keep going on but it would seem they did bring in mobile gen-sets
 
everton_de_vina_del_mar said:
The earthquake cut off power to at least one of the nuclear plants, the Fukushima plant, and backup generators failed after an hour, forcing local governments to bring in mobile generators. Even after an automatic shutdown, the reactors must be cooled—and without power, cooling water cannot be circulated. [Update: A backup cooling system that uses batteries can temporarily delay overheating.] There have been reports that enough water remains in the reactors for cooling, and to prevent the nuclear fuel from being exposed

Hate to keep going on but it would seem they did bring in mobile gen-sets
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Then why aren't they able to power the cooling systems then?
 
Workers have brought in mobile power generators to the Fukushima Daiichi nuclear power plant in northeast Japan to restart the facility's cooling system, according to a government statement issued at 12:30 a.m. local time Saturday (1530 GMT).

The Japanese Nuclear and Industrial Safety Agency said three-to-four generator vehicles have been brought to the plant, owned by Tokyo Electric Power. It also said workers are connecting cables to restore the cooling system, but need to bring in additional cables by air. The statement said additional batteries are being shipped from another power plant, but it did not say whether the system has returned to normal.

Jiji Press reported earlier Friday the cooling system would be restored by around 1:30 a.m. local time



It would seem they where waiting on equipment they might have it up and running by now
 

everton_de_vina_del_mar said:
Workers have brought in mobile power generators to the Fukushima Daiichi nuclear power plant in northeast Japan to restart the facility's cooling system, according to a government statement issued at 12:30 a.m. local time Saturday (1530 GMT).

The Japanese Nuclear and Industrial Safety Agency said three-to-four generator vehicles have been brought to the plant, owned by Tokyo Electric Power. It also said workers are connecting cables to restore the cooling system, but need to bring in additional cables by air. The statement said additional batteries are being shipped from another power plant, but it did not say whether the system has returned to normal.

Jiji Press reported earlier Friday the cooling system would be restored by around 1:30 a.m. local time



It would seem they where waiting on equipment they might have it up and running by now
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Needed to bring in additional cables by air. Jesus wept.

So they have the vehicle and generator, but can't connect it up.

What sort of contingency planning is that ????!??!!?!?


Grounds for litigation.
 
Matt Damon said:
Needed to bring in additional cables by air. Jesus wept.

So they have the vehicle and generator, but can't connect it up.

What sort of contingency planning is that ????!??!!?!?




Grounds for litigation.
Click to expand...



i get yer man
 
It would be difficult to maintain the quantity of mobile generators onsite necessary to provide essential backup power for a nuclear power plant. 100 KW, as you quoted before is not even close to being sufficient to power normal or emergency cooling. However, the plants are designed with enough redundancy that they should have had enough emergency onsite power to provide core cooling. Unless the damage onsite was truly horrific, one of the (what I presume is two) emergency Diesels should have worked.
 
Uscrulez2001 said:
It would be difficult to maintain the quantity of mobile generators onsite necessary to provide essential backup power for a nuclear power plant. 100 KW, as you quoted before is not even close to being sufficient to power normal or emergency cooling. However, the plants are designed with enough redundancy that they should have had enough emergency onsite power to provide core cooling. Unless the damage onsite was truly horrific, one of the (what I presume is two) emergency Diesels should have worked.
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I could of quoted any figure. SOFCs up to 1MW.

Royals Royce and SIEMENS have commercial units.
 
1m waves hit the North Island apparently, but no damage, so we're all good down here!

Heard 5 people were swept away in California, watching the waves come in. Sorry to our Americans on here, but some of your population really do live up to the stereotype :(
 

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