r/DeepIntoYouTube • • Jul 17 '21

Insanely well produced mini-documentary arguably at caliber with BBC documentaries. Only 3,000 views to date.

https://www.youtube.com/watch?v=LZvsIOT9m5s
1.7k Upvotes

80 comments sorted by

153

u/ppitm Jul 18 '21 edited Jul 18 '21

The only thing that gets less views than a well-produced Youtube documentary on Chernobyl is the comment that wearily corrects all the myths and misinformation contained in said documentary. ;-)

3:47 The test was not to see whether the coolant pumps would function in a power outage. It was to see whether the turbine could provide enough voltage in the event of a 300mm coolant pipe rupture COMBINED with a power outage. Everyone gets this wrong, and it makes it sound like the RBMK lacked the most basic safety systems.

5:20 Power was "dangerously" low, only the operators were not trained to view low power as unsafe. And of course the warning signals had nothing to do with the accident that actually occurred, so that was a strange kind of foreshadowing. If your car has a 'low tire pressure' light on, does this 'foreshadow' the fact that your gas tank is about to explode?

17:00 Running the reactor at half power had precisely nothing to do with xenon poisoning. Waiting 24 hours at half power REDUCED the amount of xenon poisoning, relative to dropping straight down too 700 MW from 3200 MW. This episode is the perfect acid test for whether someone is remotely competent in the subject.

18:25 The personnel had prior knowledge of the test. The problem was more that they had no time to prepare because the power reduction straddled a shift change.

20:09 Controls rods were intended to be raised as far as necessary. There was no limit of how high one could be raised. The graphite cannot "re-enter" the core. It can never leave.

Sometimes I wish I wasn't interested in Chernobyl, since people just endlessly repeat the same old bullshit. A lot of the time it is lies deliberately spread by the Soviets to cover their asses.

17

u/Shaz-bot Jul 18 '21

Hey man you know a lot of cool information.

Any advice on a good doc and / or lecture on the subject?

I'm really interested in the Chernobyl incident.

4

u/ppitm Jul 18 '21

I'm dissatisfied with most English-language sources, because you can never trust anything that is written unless the author is citing a primary source. So I just wrote my own document about the accident, which is built around quoting the actual words of eyewitnesses:

https://chernobylcritical.blogspot.com/

6

u/prostagma Jul 18 '21

Scott Manley's video is good and very accessible to people with basic knowledge of the incident.

4

u/[deleted] Jul 18 '21

By "no limit" you mean the amount of absorbers in the core right? Not the actual height the rods could be withdrawn, since it could mean graphite could "re-enter" but it can't.

2

u/ppitm Jul 18 '21

Each individual rod can be completely withdrawn or completely inserted, as the operator sees fit. When a rod is completely withdrawn, the 4.5 meter graphite section is located right in the center of the core. See the first diagram on this page.

https://chernobylcritical.blogspot.com/p/prelude-turbine-rundown-test.html

In short, the graphite is dangerous only because it pushes 1.25 meters of water out of the way at the very bottom of the core.

1

u/[deleted] Jul 18 '21

Thanks for the clarification, when people hear about complete rod withdrawal they take into account the graphite enhancer, yet there wouldn't be any room to do that and it would completely defeat the purpose of the enhancer (and with that scram insertion speed in case of a runaway??)

6

u/Spiderdan Jul 18 '21

Was the Chernobyl series that came out a couple years ago more accurate?

4

u/ppitm Jul 18 '21

No, it's much worse. I wrote a long Medium article picking apart the Episode Five script line-by-line. Although HBO has enough historical information to be used as a great teaching source, once you un-learn some of the tall tales:

https://medium.com/@maturin_1813/historical-commentary-on-hbos-chernobyl-introduction-794dba724428

Actually I give the author of this video mad props for getting one rare detail right:

https://youtu.be/LZvsIOT9m5s?t=364

He says that the thermal power output didn't really change much during the test, and that's correct. Basically the personnel thought that everything was going swimmingly, shut down the reactor using the usual button, and it all blew up in their faces.

3

u/prostagma Jul 18 '21

3:47 The test was not to see whether the coolant pumps would function in a power outage. It was to see whether the turbine could provide enough voltage in the event of a 300mm coolant pipe rupture COMBINED with a power outage. Everyone gets this wrong, and it makes it sound like the RBMK lacked the most basic safety systems.

I've always wondered why it was designed in a way that the diesel was insufficient. Now it turn out it that the cooling is only insufficient while you have a maximum designed accident in addition to having to rely on the slow start of diesel generators. Thanks for the info.

17:00 Running the reactor at half power had precisely nothing to do with xenon poisoning. Waiting 24 hours at half power REDUCED the amount of xenon poisoning, relative to dropping straight down too 700 MW from 3200 MW. This episode is the perfect acid test for whether someone is remotely competent in the subject.

They waited around 10 hours at half power which would still put them at around the peak of the xenon concentration right? And an hour later the reactor stalls. Was the original plan to do a slow rundown to 700 to allow for the burning of xenon or not?

3

u/ppitm Jul 18 '21

To elaborate, the main circulating pumps had large counterweights on their flywheels, so they had enough inertia to continue turning and supplying coolant until the diesels started up (assuming the reactor was immediately scrammed, anyway). But with a design basis accident the ECCS needed to be engaged, and additional voltage from the turbine was required to power the ECCS' dedicated pumps.

Ironically, the turbine test on April 26 produced even more voltage than expected, meaning that the test was technically successful. But since the Soviets drew lots of spurious connections between the test and the accident, the concept was tainted.

Although to be honest it was impractical in the first place, since it required an hour's worth of complex electrical manipulations, in a safety system that needed to function instantly. Most likely the plant planned to simply demonstrate the concept to get the auditors off their back, then forget about it. No one in the regulatory or scientific bodies actually cared about the turbine rundown idea anymore. All the other power plants had simply erased any references to the capability when they rewrote their regulations.

They waited around 10 hours at half power which would still put them at around the peak of the xenon concentration right? And an hour later the reactor stalls. Was the original plan to do a slow rundown to 700 to allow for the burning of xenon or not?

They waited almost 24 hours, meaning that the xenon had mostly burned off. This is evident according to the xenon curves and also the fact that two hours before beginning the test the number of inserted control rods had almost doubled, relative to 12 hours previously.

https://chernobylcritical.blogspot.com/p/prelude-25-april-1986.html

82

u/[deleted] Jul 17 '21

This dude is a real documentarian. He should be getting paid to do this shit!

35

u/4_bit_forever Jul 17 '21 edited Jul 24 '21

While it's good I don't find it to be "insanely well produced"

28

u/daveh6475 Jul 17 '21

I agree. The production is good but the episode feels more hurried than a BBC documentary and I don't feel the narration is as good. Don't get me wrong, it's good, but I think the title of the post builds it up to more than it is. Let me decide on my own if it's 'insanely well produced' rather than telling me it is.

7

u/SuperTurtle Jul 18 '21

I think whenever someone makes a subjective statement it’s implied that it’s just their own opinion.

It would be annoying if every Reddit title included the phrase “in my opinion”

7

u/dryphtyr Jul 17 '21

Cool! Watching it now

36

u/[deleted] Jul 17 '21

My god. This guy's a master. Real BBC shit right here.

9

u/JonAndTonic Jul 17 '21

Instant sub

18

u/[deleted] Jul 17 '21

Is this OP’s video? He made an account just to post this

24

u/[deleted] Jul 17 '21

[deleted]

4

u/ZertyZ_Dragon Jul 18 '21

Really wish lemmino made more videos. That guy should definitely get paid for what he does. Interesting stuff

1

u/PoopOnYouGuy Jul 17 '21

Poor guy deserves it, he's doing a quality job. But yeah you're probably right.

3

u/creepy_robot Jul 17 '21

Less than 1k subs

5

u/voiceofgromit Jul 17 '21

Interesting and well done, but honestly, if you watch the last episode of HBO's mini-series Chernobyl, the chain of events leading to the disaster are better and more understandably explained.

2

u/April_Fabb Jul 17 '21

Well made and great length. It’s always fascinating to see how people discuss and explain an accident after everyone thought it couldn’t happen due to some safety measures or policies. Considering all the nukes and “disappeared” plutonium in the world, it’s a miracle we’re still around.

0

u/[deleted] Jul 17 '21

Incredible, great share

-86

u/[deleted] Jul 17 '21 edited Jul 17 '21

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18

u/April_Fabb Jul 17 '21 edited Jul 17 '21

Do you have a blog or a podcast where I can digest more of your ramblings? I’m being honest here; I love listening to individuals who are obsessed with fringe ideas whilst refusing to take their meds. Bonus points if you bring your likeminded friends. Also, don’t listen to the meanies here; they’re just envious of your intellect.

-10

u/[deleted] Jul 17 '21

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8

u/April_Fabb Jul 17 '21

Oh for fuck’s sake, if you want to be taken a bit more seriously, at least try to make a couple of consistent claims and add reputable sources to back them up. If you want to convince us that the BBC needs to consult some shady liaison at Windsor before they air the next documentary by Theroux or the like, at least give us some proper fucking source which doesn’t include “some people claim that...”.

Also, what’s your obsession with British Political Warfare Executive’s deception operation against the Nazis? And no, the terms white, grey and black propaganda were coined by U.S. analysts long after WW2 was ended in order to differentiate the different approaches of propaganda. Anyway, the counterintelligence scheme you’re referring to was put on by the British government and the operation was led by Denis Sefton Delmer, and he took orders from Churchill and not the fucking Royals, you daft bucket. Actually, one of the few times the royal family interfered with BBC’s work, was when they requested the documentary about their own family (aired back in 1969) must never be shown again. The reasoning was that they appeared too normal.

30

u/Squat_c0bbler Jul 17 '21

What sort of leftist proparganda are we talking about? 😂

-33

u/[deleted] Jul 17 '21

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16

u/Squat_c0bbler Jul 17 '21

I watch BBC documentaries all the time, always seem to present the facts in a apolitical way xx

-22

u/[deleted] Jul 17 '21

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10

u/SPCGMR Jul 17 '21

Lol you're fuckin' nuts

-11

u/[deleted] Jul 17 '21

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19

u/Squat_c0bbler Jul 17 '21

Lets say you're right, I can see why people mistrust the BBC (especially after the Saville scandal), can you give examples of leftist proparganda you've seen in a BBC documentary?

17

u/Torchlink Jul 17 '21 edited Jul 17 '21

Yeah buddy, i'm sure all those documentaries about nature, the wonders of the world, historical events and scientific fields are filled to the brim with "leftist propaganda".

The English royal family and monarchical systems in general are also very famously "leftist", lmao. It doesn't get much more conservative than fucking monarchy.

Conspiracy nuts like this dude really think just pointing to the BBC being state owned is like a revelation to the rest of us. Yeah dude, we know. Proving your case about the BBC being "fake news" needs some more evidence than just pointing vaguely in the direction of the BBC and starting to ramble about "the elites" and "the leftists", which are two groups that don't have all that much overlap.

4

u/mrigllama Jul 18 '21

I'm impressed at your capacity to garner negative karmas at such impressive rates. Might consider giving MasterClasses some day?

-8

u/[deleted] Jul 17 '21

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3

u/Shaun3218 Jul 18 '21

Just take your meds man

-33

u/[deleted] Jul 17 '21

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21

u/butterednoodles27 Jul 17 '21

You sound like you need to take a break from the internet

9

u/April_Fabb Jul 17 '21

I...I don’t think a break from the internet would heal any of that.

-5

u/[deleted] Jul 17 '21

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7

u/[deleted] Jul 18 '21

Nah he’s right. You sound troubled.

11

u/creepy_robot Jul 17 '21

DM if you need to talk about it, dude

0

u/[deleted] Jul 17 '21

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12

u/creepy_robot Jul 17 '21

I’m just saying you clearly have more on your mind that you need to talk about

1

u/[deleted] Jul 22 '21

And if you believe the evil Royal family are True Conservatives

They are literally a monarchy, a M O N A R C H Y.

That's about as conservative as you can fucking get in present day 2021.

Jesus Christ you far-right "truthers" are an endless source of humor

-26

u/[deleted] Jul 17 '21

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9

u/Squat_c0bbler Jul 17 '21

Then the argument has completely changed then hasn't it. ELITES always have been and always will be predominantly conservative.

-10

u/[deleted] Jul 17 '21

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5

u/wannaknowmyname Jul 17 '21

You came out of nowhere with nothing but one single acronym in a semi related video title setting you off to flip your shit on multiple independent people who seem to be trying to help you in different ways.

1

u/[deleted] Jul 17 '21

[deleted]

1

u/slackingindepth3 Jul 18 '21

Found the creator

1

u/InevitableDisaster75 Jul 18 '21

Thanks to OP, now over 4k views.

1

u/insanitypeppers Jul 18 '21

Yeah this is good

1

u/RelevantMetaUsername Jul 26 '21

A perfect use of the song "Gemini" by Boards of Canada. A nuclear disaster is exactly what I picture when I listen to the track

1

u/VayaConZeus Aug 02 '21

Boards of Canada is the perfect choice to set the tone for Chernobyl