The Chernobyl Disaster: How It Happened
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- เผยแพร่เมื่อ 24 ก.ย. 2024
- On April 26, 1986, a routine safety test at the Chernobyl nuclear power plant in Ukraine spiraled out of control. Follow the dramatic events that led to the world's worst civilian nuclear disaster.
No, this is false an RBMK reactor can't explode
Gonxp Vids he’s clearly delusional. Someone go check on the core.
TheLodiB 😂😂
pump water to the core
Akimov you moron, you blew the tank
UNIMAGINABLE!! spreading such disinformation at a time like this.
It was merely 3,6 Roetgen, no big deal.
I've been told its the equivalent of a chest X-ray.
That’s also coincidentally the max that the control room counter can read too.
damn i hate those stubborn people. they think themselves as "smart" when shit clearly went wrong 😂
@@user-bl1ve4ej8u an RBMK class reactor cannot fail. You're delusional.
@@zogwort1522 HAHAHAH
1986. I serve Yugoslavian army, i was 18 year old i remember when officer told us " We are not in danger, radioactivity goes to Sweden"
@@KD0105 Makedonija Bitolj...
@@Sus-kz2bf Ne srbin iz centralne Srbije. Sluzio 86. Bitola, Skopje....Lepe uspomene, divni ljudi, pivo za vojsku 20% jeftinije, beplatan gradski prevoz za vojnike.
@@vladimirkostic9932 If you wanna be called macedonia, we can annex you. Use your fucking *name* we gifted you
@@nermainmerl3284 He's not even Macedonian, you twat. He just served in the Yugoslavian army in the area of the former Yugo republic of Macedonia. At least use a fucking *translator* before you go annoy someone...
@@nermainmerl3284 Annex? Greece annexing? Lol Give us back Cameria and all northern part of your country, and apologize for the mass murders first.
Who is here after watching Chernobyl ?
Bruh u read my mind
there was mention of this overheating on the show...
Google bots from your timeline suggestions ;)
Ive watched every documentary on chernobyl....the HBO show is freaking awesome and can wait for the 2nd episode to air tonight👍
It me
"Comrades! He's delusional, take him to the infirmary"😂😂
😂
anonymous person that actually had me dying lmao
I don't get it?
@@Sened55 chernobyl hb series
He's infirmary get him to the delusional!
With Chernobyl's tv show now we have thousands of experts in nuclear disasters in the comments.
And?......What`s your point?
@@PowerandLuxury Well, they just watch a TV show and now people are smarter than nuclear's engineers ! It's wonderful ! I would like to watch a TV show on HBO about how to fight cancer or the world hunger.
@@PowerandLuxury Whats your point critiquing my point? It's truth. And they correct others as the show followed exactly every event in the disaster. It doesn't.
@@lyn.8059 I just ask you a simple question,chill,it`s Friday.
@@PowerandLuxury i'm chill lmao. I: asked you a simple question + answered yours.
This video, although accurate in its details is very misleading. The video makes it sound like there was a nuclear explosion at Chernobyl. It was a steam explosion. There was no nuclear explosion. There can not be a nuclear explosion at a commercial nuclear power plant. The physics of the fuel and the configuration and enrichment of the fuel make it impossible. My intent is not to downplay the severity of the disaster in any way. But facts are facts, there was no nuclear explosion at Chernobyl.
+Simon Smith what do you mean by "steam explosion"?
+SputzNiz Games The reactor went from 300MW thermal to as high as 30,000 MW Thermal (10X maximum power) in seconds. The water in the reactor instantly flashed to steam at a higher pressure than the reactor was designed to contain. Just like a boiler explosion on an old railroad locomotive. A steam explosion is what blew apart the reactor and reactor building.
+Simon Smith I agree Simon, but think about it: Due to Steam or whatever reason, we did expose Uranium to the environment, isn't it?
Its the nuclear component that was damaging, and not the steam itself, so its better if people don't get misled themselves, and better to use "nuclear explosion".
Otherwise, anyone knowing basic science will understand from this video, no doubt, because I'm myself a Commerce Post Graduate, and not a science student.
***** Thanks for the comment. You're of course right, the method that radioactivity is spread into the environment is less important that the fact that it is being spread. My point is that a nuclear bomb explosion is much more powerful than anything a power plant can do during failure. If Chernobyl was a nuclear explosion, the damage would have been far more widespread and the shock wave would have knocked down the other 3 reactors with much more dire consequences. I draw the line at "Nuclear Explosion". It was an explosion at a Nuclear Power Plant (by steam or hydrogen), not a Nuclear Explosion.
Hmm... Thinking that way, yeah, you're right that a "nuclear explosion" would be a wrong description.
Personally, I do hope we never get to witness a nuclear explosion, no matter where in the world. No one deserves it, no matter what they did. And of course, no one is anyone's judge to leash out such a punishment...
That's easily one of the most overly simplistic (overly simplistic to the point of being useless) explanations for the disaster I've seen.
my dog understands what happened to Chernobyl after watching this video, though he seems confused on a beta male whining over it
Yawn. Got a better insult?
my dog has learnt so much ever since, he is preparing his bachelor thesis in nuclear physics. If you failed to understand, try consult local mongrels
Your dog is so unlucky that he might get cancer from the lethal doses of ignorance radiating from you.
TrojanPiece i should have known its was always me, that my dog improves his intelligence tremendously. Does your dog still shit in your shoes?
They have missed many facts about this event. The test was delayed by at least 10 hours, the night crew weren't aware nor trained good enough to complete the test at all, the test had failed four times (the fourth one being the explosion), many instructions weren't overly clear, the power dropped close to zero, the graphite tips only made the reaction in the core way worse. The first sarcophagus lasted about 30 ish years (probably not the exact number) the second one was added when a turbine hall roof collapsed.
Many key points and facts were skipped completely or glossed over, which is sad since information about it isn't hard to come by.
Source?
Whistle blowers. Read more.
@@alybhanvadia1860 ive just started looking into this an hour ago and ive been through many sources of the same story including wikipedia, and this is missing lots.
Yeah they dumbed it down alot for the general people to understand things and not make it hard for them. I mean a RBMK reactor doesn't suddenly drop in power or surge in power. Things happened that they didn't even explain here like the Xenon poisoning effect which is massively important to explain!
They basically said „the reactor exploded” and then proceeded to talk about the Sarcophagus.
I think the fact that this mess was running until the year 2000 is the most amazing and horrifying thing about Chernobyl.
and until then reactor 2 caught fire as well and then reactor 1 broke down. can't wait till ukraine decides to restart reactor 3
After the accident all 3 reactors were restarted. In 1991 unit 2 had a fire in the turbine hall and the reactor was closed, unit 1 was closed shortly after, and unit 3 was shut down in 2000
russians are so fucked in the head.
If you have a energy shortage, you would have to keep it running, after you have completed a new power plant with the same capacity, then you can shut it down.
@@druidofthefang in soviet Russia u don't shut down a reactor just coz a part of it get blown up
Did you REALLY push the AZ-5 button ??
Yes, i saw it in interview of Dyatlov
The AZ-5 button made the situation worse.
The az-5 button closes the rods which had graphite on the tips which made the reaction worse
WHAT IS WRONG WITH YOU PEOPLE 😂
What
"The reactor did not explode".." you're jus shocked"
He's delusional. Take him to the infirmary.
We should put that on our money
Everythings fine its only mildly contaminated he’ll be fine ive seen worse
Dude: his face
Dyatlov: Fuck the phones and fuck the electricians
Dude: wjat about the fire?
Dyatlov: call the fire brigade
It's like the Titanic "This Ship Can't sink"
it ddidd exlod
Who is here after HBO's Chernobyl ?
What a masterpiece !
Fei Li yea cant wait for next episode
If you can get past all of the British accents, it's a great mini series.
@@TheSonicVoid and what's wrong with British accents?
Sky Atlantic here in the UK... or rob it on PB.
@@TheSonicVoid I'm English... got a problem with that yankee?
This is correct, as far as it goes. There is no depth, however, to explain why it happened.
When they say "cooling water has to be supplied", they don't explain that the fuel rods are creating HUGE amounts of heat when operating (fission is happening in the supercritical regime of the reactivity curve), and there are a lot of them in the reactor of this size. In more-or-less equivalent reactors, the pumps are huge - they have to be to supply 25,000 gallons of cold water per minute to draw off all the heat created. Generally these huge pumps are powered by a significant portion of the electrical output of the reactor. When a reactor goes into emergency shutdown, it stops producing a large part off its heat, and the power generating turbines which convert the heat into electricity immediately start winding down, but the pumps have to still run, as decay heat has to still be cooled to prevent meltdown. The Chernobyl test was designed to answer the question, "If we shutdown the reactor in an emergency, will the spinning down turbines, powered only by their own inertia, provide enough energy to keep the pumps running until diesel generators can take over, in a matter of about 45-60 seconds?" The expected answer from Moscow was, "They'd better, or heads will roll."
The test, previously failed twice on #3, was to simulate a shutdown by shutting off the turbine steam feed to the generators as if the reactor had shutdown and see if they could power the pumps for 60 seconds or so. The reactor was supposed to be at a low but stable power regime, but it was allowed to drop below that for a while, into an unstable regime in which xenon-135 accumulated. This is a fission product, 6.3% by weight of all such products, which has a huge appetite for neutrons; that shuts reactors down, willy-nilly, and was first discovered with the very first reactor, the CP-1, in Chicago during the war. Absorbing a neutron converts it into Xe-136, which refuses neutrons. Most of the Xenon comes from decay of iodine-135, with a 6 hour average delay. Thus, the xenon poison will self-correct in 6 hours or so, so waiting will cure the problem. The other thing that can be done is to feed it massive mounts of neutrons, causing it to "burn" into the less offensive Xe-136, by forcibly increasing fission rates in the face of the poisoning. This is inherently dangerous, because as the Xenon is converted, that in itself increases the fission rate in a positive feedback loop. This is exactly what happened at Chernobyl, when they withdrew control rods to raise the reactivity and force the poisoning to dissipate. It did all right, and the fissioning increased so rapidly that it created instant steam in spite of the reactor's high pressure, in just a few seconds. It was more pressure than the pressure vessel was designed to take, the resulting steam explosion blew the multi-ton cap off the reactor and destroyed the core and almost all the cooling systems.
Some features of the design of the reactor made the results more likely, but the real cause was allowing the reactor to drop below safe power levels and then lack of understanding why that was inherently unsafe. Operators were apparently instructed in the test procedure not to let the drop happen, but why it should not be allowed was considered a state secret, because it almost demolished another plant some years earlier, and Soviet superiority could not be called into question in technology or science. The accident was caused by operation crew ignorance, overwhelming politicization and security, and design flaws.
Outstanding sir. Your knowledge and grasp of the tragedy at Chernobyl are apparent
Design flaw, 100%. If it explodes at X, and the graphite rod tips will cause a temperature spike of Y, then the maximum temperature level is (X - Y), not X.
i appreciate your efforts
The fact the rbmk had a positive void coefficient was really bad.
Very clear and thorough dissection of the incident, very much better than the video explanation.
Rest in peace for all who died.
Did you try turning it off and back on again?
@@sourcecode16 r/blursedcomments
Oh damn billy the internet is out now
No, That is not possible
Its not possible because The reactor is experiencing meltdown, Blame The Soviets, Why are you blaming the soviets? Because The soviets made that mistake And there responsibility.
no. just press AZ-5
there is a joke @@coonsider among us
R.I.P Chernobyl Chimney [*]
Klaus more like reactor 4
I cried
Roblox Tutorials I love the fact your name is trying to prove someone wrong. I’m not insulting you but who the hell would believe someone with that name -_-
Apparently changed name to Janetta Davis. Now the question is, who the hell would believe a girl?
What was the Chernobyl reactor 4 sayʼ it says booom
I love how everybody now thinks they are an expert on nuclear reactors because they saw the season finale of Chernobyl
people seekin knowledge isnot a bad thing
At least we try.
@@ahmedmagdy620 if you came to this video it´s because you were looking for knowledge, SO WAS I. But it´s funny to read people lecturing as they were the ones who cracked the problem. Probably people who never would take the job to do a video like this one.
I thought I was a expert after watching this TH-cam clip.
@@sebamtorres you don’t have to be a chef to say that the food tastes like shit, same thing here
this is not how the accident happened...they were running the reactor at such a low level that they could not maintain the chain reaction they restarted the reactor when steam excursions caused power spikes causing them to scram the reactor using the control rods which were tipped in graphite which allowed neutrons to hit the fuel more efficiently causing a large power excursion that caused a steam explosion.
It is true that they removed to many rods is a part of the disaster
Thanks for putting it right. That's what I remembered, too.
eric hoagland your rong you ass
sendi tripatranusantara please explain how I am wrong I would love to know? also it is spelled "wrong" not rong...not being condescending I am assuming that English is not your first language.
I'm trying to figure out how 8 tons of radiation spewed into the atmosphere. Radiation being practically weightless. Contamination would be a little more accurate but 8 tons no. Ten years in nuclear power I have never heard of radiation measured in weight.
This doesn't tell you anything. I expected a detailed list of what happened like in the show.
Tony Fisher this was 4 years ago
It's good for helping to get a simple explanation of what happened and how nuclear reactors work.
There you go:
th-cam.com/video/3a1gCQzBQws/w-d-xo.html
Dude atleast respect his animation and the work put into it
@@thefistofshadow7392 asshole
In the game Sim City, one of the disasters that can happen is a nuclear meltdown. When I first played it, I was too young to really know what a meltdown was, but if it happens or if you activate the disaster in the game you can see it. It sure looked and sounded scary in the game. The screen would shake, alarms would go off and there’d be this terrible rumbling. I remember hoping a meltdown wouldn’t happen in real life, because I at least knew it seemed horrible.
which sim city
@@Walter.609 I think it was SimCity classic. I played it on a big old computer, a Windows, I think. I played it in the mid 90s-ish.
cool, i will research about👍🏻
*_I bet we're all here after watching HBO's Chernobyl_*
I'm here after seeing some throne got melted.
No, I'm just lucky I guess.
I have no idea what hbo is nor what movies it produces. I'm from Russia. Westerners are always watching some weird crap. Have a good day.
get out of here stalker
PJ Chernobyl series brought me here
Holy guacamole! I did not have a clue the other reactors were still operational until the millennium!
@@jesusiskingofkingsz
it's nothing dangerous, the radiation is just above normal radiation in the middle of a big city... i'm going to have a little trip there in next month
They bused the workers to and from town for years. Remember this is somewhat poor parts of Ukraine. And they still had three perfectly good reactors...
I remember when it happened. This is a Graphite and natural Uranium reactor. The Americans don’t have reactors this size. American reactors are marine reactors of the PWR type. These RBMK 3:25 reactors are very large in power output and the generation of electricity is cheap compared to a PWR. The only problem is that it uses a Graphite moderator to slow down the neutron field. Graphite is brittle and it turns into dust if the core is damaged or compromised. This will happen in a run away reaction, scenario. Graphite chunks will be ejected into the atmosphere and will be impregnated with transuranic actinides in metallic elemental particles which carry radioactive isotopes in particle size, like strontium 90, Cobalt 60, caesium, plutonium. Basically a horrific mixture of radioactive material which causes severe tissue damage and burns to biological tissue. Gamma radiation is the most dangerous form of radiation because it has the highest energy density and the shortest wavelength. It has a high radiation intensity and it will penetrate several feet of lead shielding. This radiation is so intense that it will destroy electronics and short circuit robotic circuits
You didn’t see graphite...YOU DIDN’T! Because it’s not THERE!
It was NOT a routine test! It was the 3rd or 4th time it had ever been scheduled and had never been successful. The control rods were manually withdrawn because the reactor nearly shut down and was producing 30MW, well under the required 700MW required for the test. Xenon poisoning was one issue that led to the very low power level and slow response to the withdrawn control rods.
Yes, Xenon gas building up inside the reactor was one of the main factors why the reactor went out of control. But the reason they could no see it on the instruments during the test was that the sensor was placed in the middle of the reactor and RMBK have different power levels in top and bottom. It was a major construction fault and USA had warned that this type of reactor could become unstable at low power levels. That is why the rest of the world abandoned it in the 50's. The safety system was also turned off to make the test if the reactor could be restarted from low power levels. The test proved it could not!
Fredrik Hansson what would have happened if the control rods weren't lowered?
Also I'm shocked to find out it was operational until 2000, why stop then? Also isn't it possible to reclaim the nuclear material from 4 using RoboCop or the T800/1000¿
Oh ok so all not for nothing, at least we know that it cannot start at such low levels. One must sometimes make mistakes to learn...
Gunzee
The other 3 reactors are so dangerous they had to shut it down as soon as they could, but they couldnt leave the nation without power
A very dangerous and unnecessary 'test' done without adequate supervision and in a very unprofessional and incompetent way. . The results speak for themselves.
But a RBMK-1 reactor can't explode
And thats not graphite on the ground and roof....
*"They are in shock!*
*get them hell outta here!"*
The radiation is 3.6roentgens which I'm told is nothing more than an X-Ray
He's delusional comrade
Just take a wodka.
The disaster was also partially caused by a high ranking officer's decision to run the test at extremely low power which lead to the loss of control of the fuel rods. The test should have been run at 700-1,000 megawatts, but the vice-chief engineer of Chernobyl, Anatoly Stepanovich Dyatlov, wanted to push the limits of the reactor and insisted it be run at 200 megawatts instead. The same engineer ignored the warning signs of a possible meltdown and continued to run the test.The blame shouldn't rest only on him, but he was the one who ordered the test to be run at an unsafe energy level, which lead to the loss of control of the fuel rods, which lead to the reactor overheating and the steam explosion. A better documentary would be the 'Zero Hour: Disaster at Chernobyl' one which does a great job of explaining the science behind everything and goes really in depth about the reasons behind the accident.
There actually was no meltdown at Chernobyl. A meltdown results in fuel element destruction and damage to the reactor. At Chernobyl, the fuel melted after the reactor had been destroyed by the steam explosion and there no longer was any way to cool the hot fuel elements or cool the resulting decay heat from fission product decay.
Roger Rabbit is right
But how could Dyatlov be the one to fault if he was on the toilet????
"The disaster was also partially caused by a high ranking officer's decision to run the test at extremely low power which lead to the loss of control of the fuel rods"
There was no loss of control of the fuel rods, did you mean control rods? Control of the control rods was maintained until the structural integrity of the reactor began to break down after activation of EPS5. Deputy Chief Engineer Dyatlov was only there on an oversight role and had no control of the reactor, control was strictly within Akimov's jurisdiction. Karpan was also in the room that evening, and he was another Deputy Chief Engineer of Dyatlov's rank, who stood next to Toptunov and helped him restore power after the accidental power drop when switching between automatic regulators. Did you know there were actually MANY people in the control room that day? Shut downs and tests are very important, and there were many tests planned for that scheduled maintenance shutdown.
"The test should have been run at 700-1,000 megawatts, but the vice-chief engineer of Chernobyl, Anatoly Stepanovich Dyatlov, wanted to push the limits of the reactor and insisted it be run at 200 megawatts instead."
Incorrect. The 700 Megawatt rule was an advisory rule, not a compulsory one. Dyatlov did not insist on 200MW/t to push the reactor. The reactor sustained a near total shutdown of reactivity when Toptunov switched from local area regulators to global area regulators as the power descent was conducted towards the turbine rundown test. Unfortunately, due to poor design of the controls or operator oversight, the automatic regulators malfunctioned and decreased power level to zero MW/t. A decision was made to raise the power as soon as possible before Xenon build up, and neither Dyatlov nor any other senior NPP personnel had any objections. Again, not against regulations written at that time. Once reactor power was stable at 200MW/t and waterflow fluctuations were worked out, they decided to run with the test and disconnected turbines to observe rundown voltage while the reactor itself was shut down as per test plan. Many different factors then pushed the reactor into a critical state, primary factor was ofcourse the design of control rods (shortened graphite displacers leaving a water column in the bottom 1.5 meters of active zone) and the function of the AZ5 button (only upper rods inserted, lower rods coming into the zone from below were not triggered, this would likely have saved the reactor). Post accident RBMK revisions included both fixes, now graphite displacers are telescopic and encompass the entire length of the active zone. Also, AZ-5 triggers shortened rods which insert from the bottom of the active zone, completely eliminating power spikes in the most essential area of the active zone, the bottom, the core inlet.
"The blame shouldn't rest only on him, but he was the one who ordered the test to be run at an unsafe energy level, which lead to the loss of control of the fuel rods, which lead to the reactor overheating and the steam explosion."
Had Toptunov and Akimov survived, they'd have been held responsible too. However, I don't blame the operators at all, as they were essentially working blind. All prior NPP accidents in the USSR were classified, reactor research and specifications were also state secrets, there was no communication between different NPPs regarding faults and accidents due to KGB interference. So, the operators had no idea that their reactor could be pushed into a dangerous situation by faulty control rod design. Remember, it was the control rod design with shortened displacers which served as the detonator here.
" A better documentary would be the 'Zero Hour: Disaster at Chernobyl' one which does a great job of explaining the science behind everything and goes really in depth about the reasons behind the accident."
While this documentary has great actors and set design, it is operating on old, outdated and frankly downright incorrect information which has since been debunked by the IAEA and their INSAG-7 report. I recommend you read this. Please, do not spread misinformation online.
@@apocratos0174 😂 Poor Dyatlov
A Civilian Will Enter The Building, And That is Illegal. And They Might Play With The Controls
There's No Possible Way That The Emergency Protocol Could Fail, What Caused The Emergency Control Rods To Fail. Ironically It Doesn't Operate With The CANDUU System,
Pootis, you mean Safety Systems.
Yes, exactly. Reactor 4 tried to shut itself down several times, and every time the operators overrode the shutoffs.
1:25 this noise satisfies me and idk why
I know its based on true events but this is the scariest show I've seen....the part where the ash falls on those people and the kids are all happy neely, sends chills down my spine
rip
Relax, you go to your safe space and sip your chocomocha bs, comrade yank.
@@alpinetheowlet1855 i think he meant based on true events as in the show is not how it happened in real life. Movie or show can be based on true events when even 1% things in that movie/show really happened and 99% that didn't and are complete fiction to add drama etc.
None of those kids died though
@@Azgoo this is what a soviet would say
Noooooo not the chimney!
Awesome Person It's removed...😖
likely demolished
Name Name I would hate to be that one kid cleaning that chimney 😂
The reactor got it first ouch
marius katutis nope, dismantled
HBO: Makes a five episode mini series on Chernobyl nuclear explosion
TH-cam:Makes a 3 min video and recommends to everyone
Russia: Makes a film about a mysterious CIA agent who sabotaged the reactor
Good news! The new containment structure was completed and installed ahead of the projected 2017 completion date.
It's not done. its been slid over but more work has to be done.
Silenx
Fine, but it's mostly done. It's the most progress they've made with it, and it means things are progressing on track (literally, because tracks were used... ahem).
And Daddy Keemstar that's a good point I suppose, but it's a dangerous piece of history. Needs to be sealed away.
You need to be happy. It's going to remain dangerous for much longer than 100 years. In 100 years they'll need to make a new containment structure.
HaloofCurls 20000 years
Historical Review I guess it could be both?
It was not a nuclear explosion. It was a steam explosion.
The most atmospheric part of HBO's Chernobyl is watching it in the Ukrainian language. Because it really happened in our country.
After reviewing the video for the third time RFE got some of the most important details and facts wrong.1) They were not testing the "Back Up Cooling System" they were testing to see if they could keep the generator excited during the coast-down after the reactor tripped so that they could keep the pumps running until the Diesel Generators came to speed and loaded.2) There was no "Routine Safety Drill". This was a brand new test to explore the lag between Reactor trip and diesels coming on line.3) There is no mention of a steam explosion. Only explosion, leading most of the non-educated people to naturally assume it was a nuclear explosion. It was not. This is fear-mongering alternative facts. Just enough whizz-bang graphics and a knowledgeable-sounding narrator to get your attention.I don't downplay the severity of the accident. But it would be nice to see more facts presented in a less dramatic method. The accident happened. The Nuclear industry learns form it. Why not the public?Read Piers Paul Read's book "Ablaze-The Heroes and Victims of Chernobyl" Very well written, chock full of facts and human stories.
This whole video is a load of crap, completely wrong information altogether. I have yet to find a documentary which is one hundred percent accurate. I would suggest to everyone to consult the INSAG-7 IAEA report and learn to read.
,
It was a graphite moderated reactor, so METALLIC Uranium was used - which is pyrophoric in atmosphere (with +- 20% Oxygen..)
When a steam explosion ripped & blew the lid off the reactor vessel,
the metallic Uranium came in contact with the oxygen in the air,
and started to burn like pyro-technics,
(& that's what whitnesses saw that night - in the very early morning),
together with the Graphite which also took fire, since it is pure Carbon..
.
In water moderated reactors, the Uranium in the ZircAlloy fuel rods consists of pellets (little cylinders) of sintered Uranium-Oxide.
.
This guy's explanation of how a nuclear reactor works:
1:00 "Uranium fuel rods react"
Don’t worry it heals in the year 22,000
Edit: I NEVER GOT THIS MANY LIKES
@_@
SpectrumPlayz a lot more than that.
9,999,999,999,999,999,999,999,999,999,999 years?
For a more accurate version of what happened, you should watch "Zero hour: disaster at chernobyl."
It's ironic that your photo is of Homer Simpson on a video where there was a nuclear power station meltdown!
@@alisonwilliams4862 do you know what ironic means?
@@terminalfrost3645 yes but it's hard to explain. If we're going to be pedantic, maybe coincidental might be a better term.
Alison Williams Perhaps the person has a thing for power plants?
A huge oversimplification of what happened...procedures were not followed. No mention whatsoever of the Xenon poisoning of the control rods, which rendered the control rods temporarily ineffective, nor does it mention the hydrogen buildup which would have occurred in the reactor hall, creating a hydrogen explosion that helped the steam blow the roof off of the reactor hall. The Xenon poisoning of the control rods happened because of a failed attempt at the same test earlier in the evening. Had the control rods not been Xenon poisoned, the meltdown would not have happened. Had the operators waited for the prescribed time to allow Xenon poisoning to clear, the accident would not have happened.
April 1986 is only 1 of 4 major accidents at Chernobyl. Reactor 1 had a partial meltdown in 1982.
Another reactor had a hydrogen fire in 1993.
A 600 sq m section of the roof collapsed in 2013.
The place was an unmitigated disaster throughout its history that required billions of dollars of foreign aid to clean up the mess.
What is your source? Thank you.
@@rogerhelbig9458 Multiple Russian language and foreign powerplant engineering analyses of Chernobyl.
Soviet archives show that one of their lead nuclear inspectors had visited Chernobyl as one of the scheduled follow-ups after the previous disasters.
Her report revealed that the concrete works and repairs were shoddy, as was the steel construction. She also discovered a theft ring among plant workers. Her comments indicated that she perceived another disaster would happen at that plant due to the culture of recklessness, insufficient quality controls in corrective repairs, and theft of tools and other materials at the site.
I wondered if they sold off their higher metering dosimeters and Geiger counters, since there was difficulty getting reliable readings after the explosion.
Her assessment was 1 month prior to the 1986 catastrophe....
It was Unit 2's turine hall wich was on fire in 1993
No foreign aid was needed if you didnt put down USSR..
This motherfucken place was still operational up until 2000,wtf!
and why shouldn't it have??? recators 1,2,3 where just fine. Besides this video is too simplified and isn't showing how it all went.
@@fouloleitarlide625 Yeah, thats why I watched the movie.
And by the way, I didn't understand how the reactors 1, 2 and 3 worked without personal for over 14 years. I mean there is to much radiation for people to control the reactor. Did they just let it wotk automaticly?
@@dg34895 I dunno but since it was soviet union probably people where still there
@@dg34895 Yeah, they were people still working there after the disaster.
It's not 3 Roentgen.....It's....15. Thousand....
Equivalent to how many chest x-ray? :D
cigarettes has 18.6 roentgens of radiation
@@MohdHashimKhan 400000 😅
how did you get that number from feedwater?
I work in the power industry and it still baffles me with the amount of procedures we do on the daily that this and three mile island happened.. but perhaps this is why i have the procedures that i do… none the less both Chernobyl and 3 mile island had massive miss information and cover ups at the publics health as an expense to save the finances of greedy businesses…nothing has changed if it happened today it would be the same story… nuclear power plants are safe until they’re not and a whole continent of people are dead or have no place to live
My takeaway is the situational awareness. They had protocol for the test but they also had a time limit for the test. They started to reduce the power output but another far distant power plant in Kiev needed supplementary power and did not follow the schedule. This delayed the true test they were trying to run and the cooling rods went exposed waaaaay longer than planned. 10 Hours longer. That right there was the critical change to the whole operation. When dynamics change beyond the original safety plan they needed to do a complete shut down but instead they tried to reinsert the rods to bring power output up. That would have worked 9 hours earlier...but the rods had been exposed too long by the delay from Kiev. The original plan had expired 9 hours previously but they were acting like it hadn't. There is a good lesson here for anyone in any scenario needing safety. When conditions change then you do not stick to the original plan. Reevaluate. Change your plan according to the new conditions. They also didn't know about the graphite tips so were at a disadvantage.
2:28
when all the city gets evacuated but you must work overtime
Lol
He forgot to mention about the az-5 button
The staff pressed the wrong button that's why the control rods started jumping and increased reactivity, if the staff pressed the correct button, the aftermath would have been better, look in the shutdown scene and read the button sign it says A3-5 it didn't say AZ-5, the staff pressed the wrong button due to panicking or the staff intentionally sabotaged the core or more likely the staff didn't read the button sign.
@@jmsta.romana4660 Sorry, I think you’ve got it wrong. The A3-5 is the same as AZ-5. The letter Z in the Latin alphabet is 3 in the Russian alphabet.
@@aulinjake Ok Jacob, Thanks for pointing out. I didn't have any idea that Russians use 3 as Z in their local Alphabet.
Who's here for a 2022 refresher? Ahhh good times.
yup
Uranian cannot melt RBMK-1000 beams.
Murmurations u didn’t get the joke
RIP Chernobyl Red and White Chimney.
You will be missed.
One like=one prayer for this glorious chimney.
Spoiler: they finished in 2017, it started crumbling in 2019 due to the strength of radiation. If I'm not mistaken they are currently in the process of fixing it
I used to think this video was accurate, it isn't. Thanks HBO.
How about reading and doing research rather than depending on others.....only way to get the full picture
This is simply not what happened.
This video explained almost NOTHING about how the reactor exploded.
"50 thousand people used to live here, now it's a ghost town"
wooow man COD MW 1 - City Of Pripyat :)
True
- Capitain Mc Millan
Cod 4
I Q J .... why use other people's posts regarding what happened at Chernobyl ? Use your own imaginative brain . Instead of stating that 50-000 + lost their respective homes ! . That others have already stated ?! ... you sad individual .
Every comment:
"No, what actually happened was [things explained in the video]".
All pro nuclear esports players, somehow, just now, learning everything they know about Chernobyl in the last *(checks comments)* six days.
Theres NO explanation of HOW it occurred
Dude, worst explanation about chernobyl disaster i have ever seen in my life.
And that's how a RBMK reactor explodes...…..
I don't know where this channel got its info, but the confinement structure is not nearly big enough to fit the titanic inside. The Titanic was 883 feet long and the Confinement is 541 feet long.
I'm fairly certain theres a lot more mistakes in this poorly made video but I don't want to do the math for all of them.
Man, that Geiger counter ticking. Metro introduced to just how terrifying it could be.
ACTUALLY after 48 hours of sweden finding out where the radiation leak was coming from, THEN people around chernobyl were evacuated. For days soldiers with masks tried to take care of the accident BEFORE the public was evacuated and told the nation. Thats life behind the iron curtain though...
On april 26th 1986 chernobyls reactor four suffered a power surge Alexander akimov pressed AZ-5 used too lower control rods immediately but the button had a fault in late reactor construction. Then the first explosion happened under the steel lid then the second explosion occurred blowing the reactor lid off..
It was actually caused by Homer Simpson
What sector does whatever his name is work in?
@@Squiffy1025 Sector 7-G
How does an RBMK reactor explode? Answer: Lies....
There are more than 31 deads.... the soviet union was not fair. See: lots of personell, all firemen, lots of civilians and engineers.
Who’s here before watching Chernobyl?
Iconic chimney is still there!
History is repeating itself
We will never see the poor chimney or the reactor 4 again, so sad.. At least keep the chimney in the backyard for the reactor 4!
The old chimney was replaced by a new one
I think they sold the chimney on ebay
WarthDader74 for nuclear fuels or control rods or 5000000$
3 and a half minute video for a 4 second ‘explanation’ of what happened.
REACTOR GO BOOM. BIG BAD RADS. PEOPLE SICK.
Dan Smith what’s that got to do with this video?
You're still not explaining how it actually happened.
Waiting for the HBO fans to turn into nuclear physicants.
#stopthewar
This is not what happened! What happened: the reactor was indeed out of control, but still not overheating.
Then after a few minutes the core got hotter, when the cooling was turned off (part of the test).
When the cooling kicked in, a lot of steam was in the core, instead of the parts in the system where the steam should be at.
When trying to stop the reactor, the control rods sort of pushed the steam further down to a point the pressure was to high! A steam explosion occurred.
"THE REACTOR CORE EXPLODED"
"Thats not possible, just put some water on it" lol
The Reactor! It exploded! I've seen it with my own eyes.
"Continues to vomit"
He's delusional! Take him to the Infirmary. Lmao
This is not a "How it happened" account. It's a summary of events with no real detail.
1:33 Reactor No.4: "Mr. Reactor No.3 *I don't feel so good...* "
Me:
TH-cam: Are you interested in the Chernobyl disaster?
And just like that everyone on here is a nuclear expert and are professionals and scientists.
Unbelievable what really happened over there.
You didn't even mention about the tip of the control rod having graphite.
Vaibhav Shinde because its cheaper
This is not an adequate explanation. Watch a real documentary, or the Netflix series.
Its just the equivalent of a chest xray
bigmaxy07 200X
That not how it happened
Well it's true what hes saying.
How then ???
He means its a very simple explanation. Reactors cooled by boiling water will contain a certain amount of steam in the core. Because water is both a more efficient coolant and a more effective neutron absorber than steam, a change in the proportion of steam bubbles, or 'voids', in the coolant will result in a change in core reactivity.
When the operator hit the button to shut down the reactor by lowering the rods, the graphite tips of the rods increased the power by double every second. What no one has mentioned is the USSR Politburo did not allow this design flaw to be publicly known, ha not even the nuclear engineers! Its like not telling a child school bus driver that when she hits the brakes, the bus will do 550 km per hour before it can settle down back to normal... Those guys were flying blind for god knows how long.
This is just 'what' happened not 'how'.
I think the tv series explained it better. 😂
That last episode was mind-blowing...
Who is here after watching GOT S8 E6?
Where can i watch full detailed documentry on it ?
this is a very bad explanation that gets almost every single fact wrong.
I heard someone crashed a forklift in to the reactor.
RBMK reactors cant explode, get him to the infirmary he's in shock
Chernobyl 1x02 !! HBO knows we need something really good after GOT , Chernobyl, watchmen , Euphoria , we’ll be in for a treat !!
New westworld too and his dark materials
If what I've heard from other sources is correct, the radiation levels at chernobyl won't deteriorate to safe levels for at least another 26,000 years, and if this thing only lasts about 100 years, that's a good 250+ more times this giant steel containment thing will need to be rebuilt.
Tell me how a nuclear reactor explodes.
"You didn't see graphite because it's not there!"
-What you saw was concrete.
-Now that's where you've made a mistake. I may not know a lot about nuclear reactors but I know a lot about concrete.
Those eyebrows though
The documentary "uranium: twisting the dragon's tail " from pbs, explains this with more details
We no more need robots. We need Biorobots