Free Republic
Browse · Search
News/Activism
Topics · Post Article

Skip to comments.

Factbox: Experts on explosion at Japan nuclear plant
Reuters via Yahoo ^ | March 12, 2011 | Reuters

Posted on 03/12/2011 7:46:44 AM PST by SteveH

Factbox: Experts on explosion at Japan nuclear plant

March 12, 2011

(Reuters) – Radiation was leaking from an unstable nuclear reactor north of Tokyo on Saturday, the Japanese government said, after an explosion blew the roof off the facility following a massive earthquake.

The development has led to fears of a disastrous meltdown. Here are comments from experts about what might have happened.

PROF PADDY REGAN, PROFESSOR OF NUCLEAR PHYSICS AT THE

UNIVERSITY OF SURREY

"It looks as if the coolant pumps had initially stopped working. They shut down automatically when the reactor shuts down, but there is a backup system running off a diesel generator -- it looks as though that's the bit that failed.

"As a result there is no way of pumping heat out of the reactor, so it has to cool naturally. If the reactor gets too hot, in principle this means the fuel rods can melt - but it looks unlikely this has happened to any great extent in this case.

(Excerpt) Read more at news.yahoo.com ...


TOPICS: Japan; News/Current Events
KEYWORDS: bwr; fukushima; japanearthquake

1 posted on 03/12/2011 7:46:50 AM PST by SteveH
[ Post Reply | Private Reply | View Replies]

To: SteveH
comments from experts about what might have happened

Once again, Reuters is wasting our time.

2 posted on 03/12/2011 7:50:43 AM PST by bgill (Kenyan Parliament - how could a man born in Kenya who is not even a native American become the POTUS)
[ Post Reply | Private Reply | To 1 | View Replies]

To: SteveH

Those analysts seem to know more what they were talking about than the talking heads and reporters who’ve been covering this.


3 posted on 03/12/2011 7:52:58 AM PST by Brilliant
[ Post Reply | Private Reply | To 1 | View Replies]

To: bgill

These commentators are experts.


4 posted on 03/12/2011 7:53:48 AM PST by SteveH (First they ignore you. Then they laugh at you. Then they fight you. Then you win.)
[ Post Reply | Private Reply | To 2 | View Replies]

To: SteveH
After surfing through CNN this AM I figured that by now half the worlds population is deceased via radiation poisoning.

They make it appear there is no hope foe mankind because of this tragic accident and that "those in charge are being silent about and won't talk to them about".

5 posted on 03/12/2011 8:02:21 AM PST by EGPWS (Trust in God, question everyone else)
[ Post Reply | Private Reply | To 1 | View Replies]

To: SteveH

So what blew up, Paddy?


6 posted on 03/12/2011 8:02:41 AM PST by the invisib1e hand (Every knife in my back pushes me forward.)
[ Post Reply | Private Reply | To 1 | View Replies]

To: SteveH

It’s hard to get intelligent info with all the hype. Thanks for posting this.

When major real-time events are happening in the world, CNN and Reuters consistently offer best coverage, simply because they have more contacts on the ground.


7 posted on 03/12/2011 8:12:01 AM PST by Jedidah
[ Post Reply | Private Reply | To 1 | View Replies]

To: SteveH
Boiling water reactor - wikipedia.org
8 posted on 03/12/2011 8:16:26 AM PST by Errant
[ Post Reply | Private Reply | To 1 | View Replies]

To: bgill

such a great comment.


9 posted on 03/12/2011 8:19:26 AM PST by Fishtalk (http://patfish.blogspot.com/2011/02/freerepublic-ping-list-compilation.html-Freep Ping Blog post)
[ Post Reply | Private Reply | To 2 | View Replies]

To: SteveH

Thanks for posting - good perspective from experts. Most of what’s being reported in the MSM is overblown and often incorrect.


10 posted on 03/12/2011 8:21:19 AM PST by bigbob
[ Post Reply | Private Reply | To 1 | View Replies]

To: SteveH

Bump


11 posted on 03/12/2011 8:24:21 AM PST by AmericaUnite
[ Post Reply | Private Reply | To 1 | View Replies]

To: SteveH

Assuming the reactor containment vessel holds, far from being evidence of the dangers of nuclear power, it can be held up as an example of how safe WESTERN nuclear reactors built in the 1970s are/were.

Of course modern reactors with far more operational safety features and earthquake proofing are even MORE safe than the one in Japan that survived the fifth largest earthquake in recorded human history.


12 posted on 03/12/2011 8:26:47 AM PST by ElkGroveDan (If every person were like Sarah Palin, this world would be a peaceful, beautiful world to live in.)
[ Post Reply | Private Reply | To 1 | View Replies]

To: Jedidah
...CNN and Reuters consistently offer best coverage, simply because they have more contacts on the ground.

Well, they ARE rats after all...

13 posted on 03/12/2011 8:28:03 AM PST by COBOL2Java (Obama is the least qualified guy in whatever room he walks into.)
[ Post Reply | Private Reply | To 7 | View Replies]

To: ElkGroveDan
Of course modern reactors with far more operational safety features and earthquake proofing are even MORE safe than the one in Japan that survived the fifth largest earthquake in recorded human history.

Sadly, that won't make a difference to the anti-nuclear crowd.

14 posted on 03/12/2011 8:29:46 AM PST by COBOL2Java (Obama is the least qualified guy in whatever room he walks into.)
[ Post Reply | Private Reply | To 12 | View Replies]

To: SteveH

On the positive side, it keeps the international media preoccupied while the Japanese go about the grunt work of salvaging what’s left out of this awful mess.

On the negative side, it will bring in a whole other layer of bureaucracy and it may kill a few hundred more people and take a few square miles of territory off the map of habitable Japan, which includes a North-South road that might or might not have been useful in transporting supplies from the less affected south to the North-East.


15 posted on 03/12/2011 8:32:57 AM PST by cmj328
[ Post Reply | Private Reply | To 1 | View Replies]

To: SteveH
Laymen on explosion at Japan nuclear plant:

- any explosion at a nuclear power plant is not good,
- the situation is not at all under control,
- expand the evacuation zone and prepare for a meltdown,
- Al Qaeda is likely taking notes.

16 posted on 03/12/2011 8:33:41 AM PST by DTogo (High time to bring back the Sons of Liberty !!)
[ Post Reply | Private Reply | To 1 | View Replies]

To: COBOL2Java
Sadly, that won't make a difference to the anti-nuclear crowd.

Well, it would be safer if the power plants were coal fired, but the enviomentalists nixed that. As it would have been simple to clean up and stop a blown out oil well on land, intead of five miles out to sea.

Perhaps for the sake of the planet, we should ban enviromentalists?

17 posted on 03/12/2011 8:44:20 AM PST by American in Israel (A wise man's heart directs him to the right, but the foolish mans heart directs him toward the left.)
[ Post Reply | Private Reply | To 14 | View Replies]

To: ElkGroveDan

I heard somewhere and I hope it is true that reactor core pressure is decreasing, which means that the situation amy be stabilizing. I think the operational issues boil down (pun not intended) to why the diesel backup generators failed all at once. That has less to do with nuclear fission and radiation, and more to do with maintenance and possibly design of ancillary non-nuclear equipment IMHO.


18 posted on 03/12/2011 8:47:32 AM PST by SteveH (First they ignore you. Then they laugh at you. Then they fight you. Then you win.)
[ Post Reply | Private Reply | To 12 | View Replies]

To: the invisib1e hand

So what blew up, Paddy?

That’s what I wanna know.


19 posted on 03/12/2011 8:48:00 AM PST by madameguinot (Our Father's God to Thee, Author of Liberty)
[ Post Reply | Private Reply | To 6 | View Replies]

To: SteveH

Thanks SteveH,great info:)


20 posted on 03/12/2011 8:48:44 AM PST by fatima (Free Hugs Today :))
[ Post Reply | Private Reply | To 1 | View Replies]

To: madameguinot

Well, read the article at the link.

Very informative and reassuring.


21 posted on 03/12/2011 8:51:15 AM PST by Jedidah
[ Post Reply | Private Reply | To 19 | View Replies]

To: SteveH

From my engineering vp, who designed reactors for the Navy:

“If pressure is going up in the containment building, that suggests that steam and probably fission fragments are being released, which further suggests serious trouble. This is what happened at Three Mile Island except their accident was bad level indicators combined with bad decisions. The Tokyo reactor and the cooling systems may have been damaged by the quake, affecting their reactor coolant systems, maybe causing a loss of coolant accident (called a LOCA in the industry). A LOCA is the most dangerous type of nuclear reactor accident there is. I hope that is not what has happened.

If there is a critical break in the coolant system or the reactor vessel, they may loose too much coolant to keep the reactor core cool. Depressurization of the primary coolant system will release massive amounts of steam and if the coolant systems are out of commission, there may be no effective way to get more coolant into the reactor. Even after a reactor is shut down, the latent heat from the continuing nuclear reactions needs to be removed. If they can’t remove that heat, there is a risk of core meltdown. I don’t mean to be alarmist. But a release of fission fragments to the public is a serious indicator of more trouble.”


22 posted on 03/12/2011 9:03:00 AM PST by Chattering Class of 58
[ Post Reply | Private Reply | To 1 | View Replies]

To: Chattering Class of 58; All

Okay...what to make of this....Stratfor Code Red

http://www.stratfor.com/analysis/20110312-red-alert-nuclear-meltdown-quake-damaged-japanese-plant


23 posted on 03/12/2011 9:14:21 AM PST by goodnesswins (Unlike the West, the Islamic world is serious.)
[ Post Reply | Private Reply | To 22 | View Replies]

To: SteveH

The diesel generators failed cuz the cost of diesel is too high and they couldnt afford to refuel.


24 posted on 03/12/2011 9:18:48 AM PST by Jessica2677 (S.O.S.)
[ Post Reply | Private Reply | To 18 | View Replies]

To: goodnesswins

I read on another thread that luckily an inspection showed that the containment unit was intact.


25 posted on 03/12/2011 9:23:45 AM PST by R_Kangel (`.`)
[ Post Reply | Private Reply | To 23 | View Replies]

To: goodnesswins

Your intelligence report is basically saying that there is a real possibility of another Chernobyl event, this time in Japan. Not good - pray for Japan.


26 posted on 03/12/2011 9:25:21 AM PST by khnyny (What exactly is a CDO??)
[ Post Reply | Private Reply | To 23 | View Replies]

To: goodnesswins

I live in Washington State 30 minutes from the Ocean. Just so everyone knows, we are buying Iodine this morning.


27 posted on 03/12/2011 9:47:06 AM PST by Chattering Class of 58
[ Post Reply | Private Reply | To 23 | View Replies]

To: khnyny
A CDO is a collateralized debt obligation -- a composite loan; a portfolio of loans with a structured cash flow payout. It's a fascinating tool and not inherently bad. The problems arise when scumbags create, administer, rate and sell them to ignorant investors -- a conspiracy, if you will, of folly.

A bad CDO is like having a crooked loan officer at a bank. It happens. But it's containable in that case. When the "bank" is a structured security, regulation and oversight are another matter. And being new vehicles, there was no adequate regulatory structure (and precious little moral foundation) in place to deter abuses. It was, after all, a runaway bull market. And easy money makes for bad morals.

The Greenspan Put was not a good idea, because it created a sense of infallibility in the marketplace.

28 posted on 03/12/2011 9:55:54 AM PST by the invisib1e hand (Every knife in my back pushes me forward.)
[ Post Reply | Private Reply | To 26 | View Replies]

Fox reporter located in Japan just said that Japanese tv is running a cartoon demonstrating how to protect yourself from radiation fallout.


29 posted on 03/12/2011 10:44:16 AM PST by catbertz
[ Post Reply | Private Reply | To 28 | View Replies]

To: khnyny

the Chenobyl director said this is not Cherobyl

different design, different safety features = no Chernobyl

If the system fails worts case and there is a melfdown, the facility is designed to collapse and stop the reaction. Then the material is contained.

If it can’t be rebuilt, might have to encase it and seal off a couple square miles of Japan for the long run.

But-speculating about Chernobyl Dux or stirring people up to imagine a mushroom cloud is so much more exciting.


30 posted on 03/12/2011 11:04:22 AM PST by silverleaf (All that is necessary for evil to succeed, is that good men do nothing)
[ Post Reply | Private Reply | To 26 | View Replies]

To: the invisib1e hand

nuclear, not financial meltdown


31 posted on 03/12/2011 11:26:48 AM PST by palmer (Cooperating with Obama = helping him extend the depression and implement socialism.)
[ Post Reply | Private Reply | To 28 | View Replies]

To: palmer

Yeah, but his tagline asked.


32 posted on 03/12/2011 12:25:08 PM PST by the invisib1e hand (Every knife in my back pushes me forward.)
[ Post Reply | Private Reply | To 31 | View Replies]

To: SteveH

Redundancy in safety systems is usually a good idea.


33 posted on 03/12/2011 2:00:21 PM PST by TASMANIANRED (We kneel to no prince but the Prince of Peace)
[ Post Reply | Private Reply | To 1 | View Replies]

To: the invisib1e hand

I know what a CDO, but I appreciate your input very much.

Your tagline seems to indicate you have a lot of enemies...at least in your own mind.


34 posted on 03/12/2011 5:18:08 PM PST by khnyny (What exactly is a CDO??)
[ Post Reply | Private Reply | To 28 | View Replies]

To: silverleaf

http://spectrum.ieee.org/energywise/energy/nuclear/japan-nuclear-accident-worse-than-worst-again


35 posted on 03/12/2011 5:28:50 PM PST by khnyny (What exactly is a CDO??)
[ Post Reply | Private Reply | To 30 | View Replies]

Comment #36 Removed by Moderator

Disclaimer: Opinions posted on Free Republic are those of the individual posters and do not necessarily represent the opinion of Free Republic or its management. All materials posted herein are protected by copyright law and the exemption for fair use of copyrighted works.

Free Republic
Browse · Search
News/Activism
Topics · Post Article

FreeRepublic, LLC, PO BOX 9771, FRESNO, CA 93794
FreeRepublic.com is powered by software copyright 2000-2008 John Robinson