Chernobyl (HBO Mini Series)

Chernobyl (HBO Mini Series)

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InitialDave

7,973 posts

83 months

Sunday 26th January 2020
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Haha I was listening to that in the gym earlier!

Pesty

42,655 posts

220 months

Tuesday 3rd March 2020
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Been watching a lot of old films on YouTube.


Found this. Absolutely fascinating and very good fo seeing exactly how quick water turns to steam and and if contained what would happen.

Open water tank with a reactor in it. They increasingly remove the control rod a fraction to see what happens. In milliseconds the water is ejected at very low reactivity increase.

At 4% total destruction. Remember this was an open tank. Makes it clear to me how in a closed system like Chernobyl how powerful and quick that explosion could happen.


https://www.youtube.com/watch?v=8WfNzJVxVz4

LaurasOtherHalf

19,679 posts

160 months

Tuesday 14th April 2020
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Wildfires 'edge closer to Chernobyl nuclear plant' https://www.bbc.co.uk/news/world-europe-52274242

And when they say closer, they mean within a couple of miles eek

raceboy

12,323 posts

244 months

Tuesday 14th April 2020
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LaurasOtherHalf said:
And when they say closer, they mean within a couple of miles eek
Try less than a mile away. frown
BBC News said:
The NGO's Russia branch, quoted by Reuters, said the largest fire covered 34,000 hectares, while a second fire just a kilometre from the former plant was 12,000 hectares in area.
Someone really doesn't want me to go there, cancelled our hotels and tours for next month and just waiting for Ryanair to cancel the flights weeping

JagLover

33,561 posts

199 months

Thursday 4th June 2020
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McGee_22

4,020 posts

143 months

Thursday 4th June 2020
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Just binge watched it again over the last week or so - riveting.

Durzel

9,704 posts

132 months

Thursday 4th June 2020
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An incredible show. Brilliant from start to finish.

I highly recommend giving the companion podcast a listen too:

https://www.youtube.com/watch?v=wsFlWDPrxWM&li...
https://open.spotify.com/playlist/2Rr7PjdLSuQ3wwWU...
https://podcasts.apple.com/us/podcast/the-chernoby...

take-good-care-of-the-forest-dewey

1,175 posts

19 months

Sunday 28th June 2020
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Gary C said:
Lol

As someone who knows more than the basic facts (though not as a theoretical physicist), actually does the job as a nuclear operations engineer and is authorised as a Duly Authorised Person and an Emergency Controller under a UK ONR site licence in a UK power plant and has spent time with operators on an RBMK in Russia as part of a Uk Government Department of Trade and Industry assist visit (i'm actually classed by uk government as a 'nuclear operations expert' !)...

I found it very watchable and very touching. The way it describes the basic reactor dynamics is actually very clever and while there are some calculation inaccuracies, some were real ones made at the time.

I must say though, there is the bit in the BBC drama when the explosion occurs and the operator puts his hand to his face in sheer terror, THAT sends real shivers down my spine just thinking of it. I felt that was actually done a little bit more realistically in the way the operators talked and acted.
Which one? I did a week at ignalina in the late 90s. Fascinating plants. I was there for an IAEA mission. It was a real eye opener. Got pissed with the plant manager on the last night and we spun dits all evening... In English... The following day during the feedback session he didn't speak a word of English... rofl

Amazing country... Must go back at some point.

And back on topic, everyone who I work with, from core design folks to ops, thought it was an incredible programme.



LukeBrown66

649 posts

10 months

Monday 29th June 2020
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Just to quickly add as a newcomer here.

Was sceptical about the series, but found it to be simply magnificent, I was concerned using actors to make a sort of drama would take the detail and facts away.

But HBO, as usual made sure that was not the case, from seeing comments from people who lived through it it was unerringly accurate in many ways and was not "made fr tv" as i was worried it might be.

It simply showed the real human costs and the bravery of countless thousands who were treated like dirt by their government and who simply tried to do their job.

Vipers

29,178 posts

192 months

Monday 29th June 2020
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I wonder how many other near misses involving nuclear accidents which are either contained or kept quiet, I do recall vaguely the three mile island incident, and bad design.

Seem to recall a number in America which were seconds from disaster.

rustyuk

3,552 posts

175 months

Monday 29th June 2020
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There seems to be one happening at the moment!

Clockwork Cupcake

65,644 posts

236 months

Monday 29th June 2020
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Vipers said:
Seem to recall a number in America which were seconds from disaster.
I think that's hyperbole, to be honest. My understanding is that American designs a) do not have the inherent instability that the Chernobyl one did and b) with American designs you cannot disable all the safeties and fly without a safety net like the Russians could.

Mazinbrum

472 posts

142 months

Monday 29th June 2020
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rustyuk said:
There seems to be one happening at the moment!
Rumoured to be the new one in Belarus, not the first incident there.

Welshbeef

43,601 posts

162 months

Monday 29th June 2020
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Mazinbrum said:
rustyuk said:
There seems to be one happening at the moment!
Rumoured to be the new one in Belarus, not the first incident there.
I’ve not seen any of this in the news could you provide a link?

take-good-care-of-the-forest-dewey

1,175 posts

19 months

Monday 29th June 2020
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Clockwork Cupcake said:
Vipers said:
Seem to recall a number in America which were seconds from disaster.
I think that's hyperbole, to be honest. My understanding is that American designs a) do not have the inherent instability that the Chernobyl one did and b) with American designs you cannot disable all the safeties and fly without a safety net like the Russians could.
More than you'd think. A lot military mind.

https://www.lutins.org/nukes.html

And that's just the US list.

You're talking about positive void coefficients. Most western design have a negative VC. But PWRs are not blemish free in their operation:

Davis Besse had two close calls - info on Google.

Dampieere - managed to load the core wrong.

Plenty of examples if you do some digging.

take-good-care-of-the-forest-dewey

1,175 posts

19 months

Monday 29th June 2020
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Mazinbrum said:
Rumoured to be the new one in Belarus, not the first incident there.
My money was either Mayak or the nuc powered cruise missile the Russians have been playing we with, which has already gone bang once.

Not seen any info on what isotopes have been detected though.

McGee_22

4,020 posts

143 months

Monday 29th June 2020
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PWR's in their early days had an almost unknown inherent fault in that overheating in the lower regions of the primary coolant circuit in the core could cause steam bubbles to appear which whilst not immediately critically dangerous in themselves (nucleate boiling) could and did adversely affect core water level measurement devices - basically a false normal or high level which could disguise an actual low level or even loss of coolant accident like Three Mile Island. Various design and measurement changes as well as information sharing and specific education have hopefully ensured this shouldn't ever happen again.

When nucleate boiling ceases and film boiling starts with steam voids in fuel channels then the reactor fuel gets very hot very quickly and very serious problems have already started.

llewop

3,294 posts

175 months

Monday 29th June 2020
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take-good-care-of-the-forest-dewey said:
My money was either Mayak or the nuc powered cruise missile the Russians have been playing we with, which has already gone bang once.

Not seen any info on what isotopes have been detected though.
Ru-103, Cs-134 and Cs-137 according to IAEA

There is a map with a possible source zone on the BBC report that suggests not Mayak, wrong area, but the missile sites/arctic coast bases might be a good shout

take-good-care-of-the-forest-dewey

1,175 posts

19 months

Monday 29th June 2020
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llewop said:
take-good-care-of-the-forest-dewey said:
My money was either Mayak or the nuc powered cruise missile the Russians have been playing we with, which has already gone bang once.

Not seen any info on what isotopes have been detected though.
Ru-103, Cs-134 and Cs-137 according to IAEA

There is a map with a possible source zone on the BBC report that suggests not Mayak, wrong area, but the missile sites/arctic coast bases might be a good shout
Thanks.

Someone hasn't leant on the sarcophagus open switch have they hehe

llewop

3,294 posts

175 months

Monday 29th June 2020
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take-good-care-of-the-forest-dewey said:
Thanks.

Someone hasn't leant on the sarcophagus open switch have they hehe
eek

also outside the footprint, which appears to be Baltic centric.

sarcophagus should be irrelevant now unless it collapses and takes out the NSC with it. The plan will be to take its roof off at some point but I suspect they won't reach that point for a while, although I'm not getting the updates I used to.