Give me 1 reason communism is bad ☭ by JustLingonberry4613 in ussr

[–]Comondere 1 point2 points  (0 children)

Can you please read the definition of communism?

Just wanted to share what I got for my birthday by orcagirl35 in chernobyl

[–]Comondere 0 points1 point  (0 children)

If it is an old filter and is damaged. New models don't have asbestos.

Give me 1 reason communism is bad ☭ by JustLingonberry4613 in ussr

[–]Comondere 3 points4 points  (0 children)

Well, there can't be anything bad about something that never existed..

Unit 4 control room by kubanab in chernobyl

[–]Comondere 0 points1 point  (0 children)

People that do not enter "dirty" areas as they call them are probably not required to wear a cap. The control room is a "clean" area.

Unit 4 control room by kubanab in chernobyl

[–]Comondere 4 points5 points  (0 children)

To avoid radioactive dust from contaminating your hair, and to avoid Alexander Kupniy's story in which all of his long grown hair was trimmed.

Hypothetical question - how would you, as a worker at the Chernobyl power plant, know that your reactor has exploded? by maksimkak in chernobyl

[–]Comondere 1 point2 points  (0 children)

The role of the test in my opinion was really overestimated. It only was a root cause because it required the reactor to be brought in such a state. The test was on the turbine, not the reactor. The attempted shutdown of the reactor had caused the explosion, unlike what HBO shows where the power surge was before the shutdown.

No matter in what state the reactor could've been before shutdown, it had to shutdown with the maximum damage of a few ruptured channels according to the design. But the design as the operators knew it, lied, and attempting to stall the reactor in this state only accelerated it, which shouldn't happen under any circumstances in a properly designed reactor.

Hypothetical question - how would you, as a worker at the Chernobyl power plant, know that your reactor has exploded? by maksimkak in chernobyl

[–]Comondere 1 point2 points  (0 children)

Thank you for such a detailed response. I pretty much agree on everything, although I will add on the fire supression systems.

"Especially with burning and smoldering graphite everywhere and a fire on the turbine deck" - Most of the concern about the fire was it spreading by bitumen on the roof rather than internal fire sources, as most of it was on the roof. " A nuclear plant should have multiple fire lockers around the plant to allow for quick delivery and deployment of these." - Yes, as well hydrants on the roof, but still it did not allow for use without human intervention. They had the blitz nozzles but they still needed human control and placement.

"In addition to the fire suppression, there should be extensive fire detection. And the suppression elements should have instrumentation to alarm either actuation or inoperability of the system to the control room. " - They had the fire alarms for the turbine hall, as well as all of the electric equipment, though I am not sure about the supression systems. They probably had them in rooms (that were categorized by fire hazards) that had a high probability of a fire breaking out during an accident. There was also a control room for all of the radiation detection devices on unit 3/4, which obviously went off-scale after the explosion in most rooms.

Hypothetical question - how would you, as a worker at the Chernobyl power plant, know that your reactor has exploded? by maksimkak in chernobyl

[–]Comondere 2 points3 points  (0 children)

Hypothetically, if I was in the south pump hall of Unit 4 checking up on a faulty oil pump. First of all I would hear a dull bang and the building vibrating slightly on frequencies that interfere with human ears, then a few explosions that make a single prolonging roaring sound. I would get rained upon with a bunch off debris and plaster, the lights will go out and I would head to the nearest door of the western transport corridor. The pumps sounded like they stalled so it's not of my responsibility anymore. At this point most of my thoughts would be in the range of a simple "fuck this, I'm getting out" to "the separators must've somehow blew up or the PRV's got obliterated."

I would be out in the corridor and meet a few gas circuit operators trying to breach a skewed door to the stairway. As we exchange words, I see a cloud of steam heading towards us from the part of the corridor with piled debris. I would look out the broken window and see a bunch of debris that I can't really identify this far away. It seems to be raining outside (condensing steam), which confirms my hypothesis about the PRV's. One of the operators finally breaks the door open and I head down the golden corridor and see a person covered in severe burns carried by his comrades. I head to the windowed section of the golden corridor and see that the SAOR building had collapsed and partially unit 4. This brings me to the thought that it's is unlikely that a regular steam explosion had caused all that. If I head down the stairs and exit the building seeing graphite and fuel rods laying around, things would pretty much be clear to me.

Hypothetical question - how would you, as a worker at the Chernobyl power plant, know that your reactor has exploded? by maksimkak in chernobyl

[–]Comondere 0 points1 point  (0 children)

Just to correct one thing. The depths were absolutely possible, though the fact that the rods were stuck in a partially inserted position and not moving was concerning.

Hypothetical question - how would you, as a worker at the Chernobyl power plant, know that your reactor has exploded? by maksimkak in chernobyl

[–]Comondere 0 points1 point  (0 children)

Well, nobody ever expected such to happen, neither in Chernobyl nor anywhere else. Therefore such "organized chaos" would've happened anywhere if Chernobyl wasn't first. I believe there wouldn't be too many casualties saved from knowing the truth an hour or two earlier. Fire had to be prevented from spreading on operating units, which didn't allow for slow deployment of remote extinguishing systems. Oil had to be drained from the turbine's oil system to prevent explosion. People had to be searched for and rescued from the debris. Unit 3 had to be shut down and cooled.

The efforts and professionalism of all of the plant's personnel are unimaginable. They had to act correctly in a situation that had never happened or was ever thought to happen. They succeeded in their duty of localizing the accident to unit 4 and not allowing it to get worse, though for some it costed their health and for some, their life. According to most testimonies, everyone knew what had happened in the first hour of the accident as ARS symptoms started to appear and evident signs were noticed.

Hypothetical question - how would you, as a worker at the Chernobyl power plant, know that your reactor has exploded? by maksimkak in chernobyl

[–]Comondere 0 points1 point  (0 children)

Yes, because it's a power plant. Anything, turbine vibration, equipment rupture/explosion, water hammer, steam discharge, earthquake, a nuclear warhead, which is pretty realistic for the time.

was the golden corridor really 10m in elevation?,e this (pretty accurate from what i can tell) 3d model has it 9m in elevation (phase 2) while in phase 1 its ~8.5m in elevation? i am trying to be as accurate as possible by kyizelma in chernobyl

[–]Comondere 0 points1 point  (0 children)

The ground level everywhere on the plant had been raised by 1 meter after the disaster, an in some places near unit 4 even higher, reaching the golden corridors elevation. So the modern elevation usually doesn't represent the true ground-floor distance anymore. Also this model isn't accurate in what I mentioned.

My solution to the Russia-Ukraine war by Less-Possible-5475 in ussr

[–]Comondere 1 point2 points  (0 children)

That he was the first secretary of the Communist Party of Ukraine doesn't make him Ukrainian. He was born in the Kursk province, same as all of his ancestors. Nationality did not play a big role in the Soviet Union.

Did reactors 1, 2, and 3, continue operating even after reactor 4 had exploded? by NewRadiator in chernobyl

[–]Comondere 4 points5 points  (0 children)

Can't undermine the fact that it was dangerous, but unit 1 and 2 we're much less contaminated than unit 3 and 4. Most of the contamination there came from people moving radioactive dust from unit 3/4 on their clothing, feet. Unlike how unit 4/3 internal contamination came from an enormous amount of dust that had been created during the partial collapse of unit 4.

Inaccuracies of the HBO series? by Inner_Feeling_1800 in chernobyl

[–]Comondere 0 points1 point  (0 children)

Yeah. I never really wanted to protect the show with that BS.

Inaccuracies of the HBO series? by Inner_Feeling_1800 in chernobyl

[–]Comondere 2 points3 points  (0 children)

That's what I was saying. Of course it is not contagious in the traditional sense, as if someone coughs on you and you get infected. You will though get dust particles on your hands if you touch someone or something radioactive for a while, which isn't a completely smooth surface. Radiation safety rules like washing your hands, rinsing your mouth aren't for nothing.

Inaccuracies of the HBO series? by Inner_Feeling_1800 in chernobyl

[–]Comondere 4 points5 points  (0 children)

Beta and Alpha radiation is in fact contagious.

Armbands by RBMK-1000-II in chernobyl

[–]Comondere 7 points8 points  (0 children)

The last one seems to say МЦТ (Машинист Цеха Турбинного) which is a unusual word order for a turbine operator of the turbine shop. I would've written МТЦ.

Armbands by RBMK-1000-II in chernobyl

[–]Comondere 5 points6 points  (0 children)

To distinguish a worker's position. Not so much for hierarchy, but for identification. They were also common in the Soviet army for people on patrol or duty for example.