Safety video for anyone with an interest: https://www.youtube.com/watch?v=AEtbFm_CjE0 Delta P is stuff of nightmares.
this post was submitted on 28 Dec 2024
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The biggest problem is he's engineering in Imperial instead of SI units.
I thought the same way, then became an American engineer. Fuck a horsepower, because it's so goddamned context dependent.
Am I assuming correctly that we're looking at a big succ-situation, where the diver will big forced through the tube no matter what?
It's a difference of like 7 psi over an area of what looks like maybe 30 square inches, which would be uncomfortable to get caught in, but I don't think you're getting Byford Dolphined
If you were on your back and had your legs above the hole, is 7 psi strong enough that you wouldn't be able to fight it?
I guess another question would be "how strong would it be compared to gravity?" (if anybody has any idea)
It very much depends on the size of the hole. 7 psi over 1 square inch is 7 lbs, but the same pressure over 100 square inches is 700 lbs.
For a naive estimate, the hole looks around 6 inches wide, which gives it an area of around 30 square inches, so there's like 200 lbs of water pressure over the area of the hole. An even more naive assumption is that if you were "standing" over the hole in the wall, you would feel 200 lbs of pressure forcing you "down," which I think most people could easily handle. I'm doing more than that right now!
Unfortunately I don't know how to even start to calculate the force of the water on you as it rushes past you, but my gut instinct is that it wouldn't be more than the total pressure in the hole
Ahhh yeah that's where I've heard it before, WTYP had an episode on that!
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Is 5m enough for that? I feel like no, but i have no idea.
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This unfortunately happened in real life.
Edit: other way around though. The divers were on the air side (habitable quarters) of the chamber.
For more clarification, they were on the high pressure air side. The kind of dives they were doing involved long periods of acclimation to the different pressures involved, so the diving bell was pressurized to 9 atmospheres. Someone fucked up, and the door opened. 9 atmospheres turned into 1 atmosphere very quickly, and the only good thing is that it happened so fast that the deceased wouldn't have even noticed
If you want to see an episode of a podcast about engineering disasters which is itself, ironically, an engineering disaster, well there's your problem
Just for what it’s worth, it looks like it was actually an equipment malfunction, not someone fucking up, that caused the accident. The company claimed the person fucked it in an attempt to cover their asses, and they were eventually found to be hiding the truth in a court of law.
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I don't see the problem.
I mean, I don't swim, but the dynamics seem to make sense.
What am I missing?
Edit: Ah, don't go near the water passage, right?
https://www.youtube.com/watch?v=PXgKxWlTt8A
Like that, but with people.
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But where's Saddam?
When it’s got ya, it’s got ya.
This really Byfords my Dolphin
Wouldn't this human in theory become a crumpled sausage like what happened to the crab by the leaking underwater pipe?
https://en.m.wikipedia.org/wiki/Byford_Dolphin#Diving_bell_accident
Fuck all of this
They also alleged the accident was due to a lack of proper equipment, including clamping mechanisms equipped with interlocking mechanisms (which would be impossible to open while the chamber system was still under pressure), outboard pressure gauges, and a safe communication system, all of which had been held back because of dispensations by the Norwegian Petroleum Directorate.
Fatigue may also have taken its toll on the crew, who had been working for longer than 12 hours
Builder of the rig Aker ASA's Gross Profit was 7.16B
Norway's oil and gas tax revenue soars to record $89 bln
Imagine forcing your workers into more than 12h shifts, running on 30 year old equipment, the government straight up refusing to upgrade said equipment, while making billions in profits - they don't call it gross profit for no reason....
Fuck all of this
Normally when people say this it is at least a bit of an exageration, but not in this case. That is some straight up nightmare fuel.
Heres a taster for those of you who don't want to read the whole thing.
...bisection of his thoracoabdominal cavity, which resulted in fragmentation of his body, followed by expulsion of all of the internal organs of his chest and abdomen...
You know how often a picture is worth a thousand words?
I feel like those words are worth a thousand pictures. All of them NSFL.
Am I reading the right article? I read the entire wiki article linked above and, quite honestly, the part you've quoted here is the only piece that even approaches being gruesome, and is very medically sanitized. What are people referring to when they say that the descriptions made them want to vomit and all this stuff?
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Not at 15 feet. I don't know enough to say how fast the water would be leaving that hole, but it's maybe a couple hundred pounds of pressure. If he even got caught, it would be super uncomfortable, but he ain't about to get ∆p'd
If you wanna see a real crab-in-a-pipe situation, look up that Byford Dolphin everyone's talking about
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DELTA P 🗣️🗣️
anon's in trouble because they're using psi instead of bar.
Edit: also fuck high pressures are a scary thing.
Pascal FTW.
He is so dreamy
Think you mean mmHg
We have mmHg at home (feet water)
I'm unfamiliar with fluid dynamics. How intense would the Delta p problem be in this situation?
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