HomeLatest ThreadsGreatest ThreadsForums & GroupsMy SubscriptionsMy Posts
DU Home » Latest Threads » Forums & Groups » Topics » Environment & Energy » Environment & Energy (Group) » Fukushima in detail

Sun Sep 18, 2016, 06:43 PM

Fukushima in detail





This is the kind of reactor used in Unit 1
This is a General electric boiling water reactor or BWR-3 the 3 means it is the 3rd design but it considered to be a 1st generation reactor. The containment around the reactor is of the mark-1 design and has a distinctive light bulb shape with a torus around the bottom that serves as the wet well for holding extra cooling water and for condensing steam released by the reactor pressure vessel.

Unit-1 at Fukushima was a BWR-3 reactor in a Mk-1 containment started construction in 1969

Unit 2,3, 4 and 5 were a newer BWR-4 in a MK-1 containment and were built between 1969 and 1972

Unit 6 was a BWR-5 in a MK-2 containment that started construction in 1979.



GE BWR-1
This is a picture of the brown's ferry reactor in the USA, it is the same kind of reactor containment used in Units 1-5 of the Fukushima plant.

the Lid for the reactor can be seen on the bottom of the picture, in later pictures you will see the lid for the Fukushima plant.

The little people working on the thing are highlighted in red.



Fukushima Daiichi Administraive building
the Fukushima plant had survived major earthquakes before in the past and despite being a more powerful earthquake than the plant was designed to withstand things were stable.



Backup diesel generators supplied power for reactor cooling
In Fukushima outside power was lost when the earthquake damaged the ultra high voltage switchgear equipment sending power into the plant so backup diesel generators supplied power to coolant pumps to cool the reactor. Each reactor had it's own set of backup generators.

Many more images: http://imgur.com/gallery/LZ1Fm


Discussion: Just dropping in to say please feel free to ask me any technical questions about the design or operation of a GE BWR. I'm a licensed senior reactor operator for a BWR. https://www.reddit.com/r/energy/comments/531z0v/fukushima_in_detail/

3 replies, 3130 views

Reply to this thread

Back to top Alert abuse

Always highlight: 10 newest replies | Replies posted after I mark a forum
Replies to this discussion thread
Arrow 3 replies Author Time Post
Reply Fukushima in detail (Original post)
nationalize the fed Sep 2016 OP
yuiyoshida Sep 2016 #1
5X Sep 2016 #2
NNadir Sep 2016 #3

Response to nationalize the fed (Original post)

Sun Sep 18, 2016, 06:50 PM

1. Thanks for this...

どうも ありがとう ございました。

Reply to this post

Back to top Alert abuse Link here Permalink


Response to nationalize the fed (Original post)

Sun Sep 18, 2016, 08:04 PM

2. Do you know if that lid actually screws on?

The top appears to have threads in it.

If so, how do they turn the lid?

Reply to this post

Back to top Alert abuse Link here Permalink


Response to nationalize the fed (Original post)

Sun Sep 18, 2016, 09:29 PM

3. Why would anyone ask a technical question on nuclear energy of a person who...

...knows zero about the subject and is content to paste pictures about which he has no level of understanding.

Seven million people will die this year from air pollution...seven million...and more will die if asshole theories about hydrogen cars that represent thermodynamic nightmares are promoted by people who have obviously never taken an engineering course in their lives, and we still have assholes carrying on about Fukushima.

For the record, Fukushima's radiaiton didn't kill as many people who will die in the next half hour from air pollution.

Twenty thousand people died in the event from drowning, collapsing buildings and other effects related to the earthquake and there is not one asshole among the Fukushima squad who is calling for banning coastal cities even though tsunamis in coastal cities killed more people in the last 20 years than would die from 50 leaking reactors, not that 50 leaking reactors have ever been observed.

Leaking smokestacks, they matter. But the same assholes who carry on endlessly about Fukushima never bother to post pictures on this page of lung tissue:



It would be interesting if these total asses bothered to take a science course before claiming to be able to respond to a technical question concerning a nuclear reactor, but rather than actually obtain knowledge, they'd rather feign knowledge.

It's not knowledge at all, the uncomprehending posting of a couple of pictures that any fool can draw from the internet.

Nuclear engineering is a complex course involving a deep knowledge of mathematics, physics, materials science, thermodynamics, and mechanics. The technology was invented by the finest minds of the 20th century and it has saved millions of lives that would have otherwise have been lost to air pollution.

A intellectual little kid laboring over forty year old stupid ideas about hydrogen cars that were shown to be garbage half a century ago is obviously illiterate in the science of thermodynamics and there is no evidence that such a person is qualified to answer a single technical question in any other of the aforementioned disiplines.

Reply to this post

Back to top Alert abuse Link here Permalink

Reply to this thread