How Do Nuclear Submarines Make Oxygen?- Smarter Every Day 251
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Amine gas treating
Chlorate Candle Technical Sheet:
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  • SmarterEveryDay

    1. A special thank you to those who support on Patreon at 2. I've decided to start sending the videos out via an email list. If you'd like to be notified directly so there's no Algorithm between you and I, Feel free to sign up here: . Be sure to add the address to your contacts so the email doesn't go to spam. Thanks for considering it!

    • Chip Elliott
      Chip Elliott

      How many candles do these subs carry?

    • Dan Quayles ITS SPELT POTATOE!
      Dan Quayles ITS SPELT POTATOE!

      @Brett Moore I know about the submarine o2 but how about the iss? Have your tried a search engine? Tell an person an answer they will ask simple questions on and on! Teach a person to use a search engine then you dont have to waste time reading simple questions that can be answered with a search engine!

    • Gw Builder
      Gw Builder

      @Stan Ervin Simple answer. The Chinese actually tried this exact experiment on the dark side of the moon in recent years with complete failure. Other similar experiments are being done on the space station with some success, but sunlight is still necessary. Some micro organisms were tested with success, but that information is apparently not available to the public. The idea is reasonable until put into reality. All known oxygen producing plant life (including algae) sufficient for human breathing require some form of sunlight in their photosynthetic process for oxygen to be produced. Submarines have been in existence since the Civil war, if there was a way to utilize plants in some form or other I'm sure the scientific community would be celebrating it right now. The Mars missions depend on such a discovery. There are multiple test facilities around the world challenging people to survive in the most inhospitable environments in preparation for the Mars missions and oxygen generation is the number one priority, water is second, and food, survivability along with many other situations follow in priority after that. In this instance there is overwhelming evidence in the proof of concept phase to eliminate that particular possibility, at least for now. I agree that there is always new information developing and the idea is absolutely reasonable to continue research because perhaps someone will indeed discover the missing ingredient. I actually grow, propagate, graft, and merge different species of plants and trees. Trying to maintain these plants in their optimal environment is challenging enough, imagine the types of modification required to sustain them without those systems. I am sure some of those modifications are probably happening on the station. The purpose is to go beyond the information we already have and explore new possibilities. I think the plant and algae ideas have huge merit; however, there are significant setbacks because with reduced sunlight oxygen production is reduced and toxicity is increased. The unknown is where the real possibilities are just waiting to be discovered.

    • Dr. Lex Winter
      Dr. Lex Winter

      @Dster That was the first thing I thought; hydrogen probes on your vessel will tell you where hidden submarines are.

    • Dr. Lex Winter
      Dr. Lex Winter

      @SmarterEveryDay You may want to do some research into Raycon. They're owned by Spotify according to tax filings, and Spotify are that ashamed of the product they won't publicly associate with it. Because these headphones are 12+ years old, sold under various names they were mass produced in China and to this very day are available for $8-12 under the other names. Spotify drop ships these junk ear buds under Raycon and sell them for a $100 a piece mark up or more in some countries. They are not a good product. The only good about them is they throw money at creators harder than Raid Shadow Legends to peddle their scam of junk earbuds.

  • ʟᴏɴᴇᴠᴇɴᴛʜᴏʀɪᴢᴏɴ

    Does it really take 30mins to explain this?

  • Little69

    Plz make a reverse osmosis video

  • J Alexander Bill
    J Alexander Bill

    shocking lack of comments on Princess Boopersnoot.

  • goguhu

    Kink is pretty much Dutch for 'brick'. It's the residue ash from burning, hardening into a ... brick.

  • Bernie Lomax
    Bernie Lomax

    I used to build the HEX power supplies that run the oxygen generating equipment in the Ohio class. Small company called Treadwell had that contract and they outsourced most of the work to other contractors, we got a lot of that work for 30 years.

  • Caesar Ong
    Caesar Ong

    I cringed a bit when you said "filtered by reverse osmosis". We in the membrane community usually refers to filtration as anything mechanically separated, ultrafiltration is the cutoff for mechanical filtration, anything with smaller pores/molecular void spaces like nanofiltration and osmotic processes we call membrane separation. It can be a bit confusing since "nanofiltration" has the word filter in the name.

  • Logan Cook
    Logan Cook

    Ask someone what happens if there is a leak on a nuclear sub. I'd bet the farm they would have a more intelligent answer than "well then we would have a leak". Thanks don petit. Sorry but you mentioned the lunar lander and i remembered when you asked Don about a leak in a space situation.

  • Chuck Whitson
    Chuck Whitson

    I bet with the body odor, facts, bad breath it must smell terrible Inside after months

    • Grampy Meyer
      Grampy Meyer

      It smells terrible the minute you board.

  • Woody Wang
    Woody Wang

    Everyone knows people on subs take shallow breaths thats why....geeesh


    Salam dari Indonesia

  • Mahesh Babu
    Mahesh Babu

    Really great video brother 💗💗💗💗💗💐💐💐💐💐💐Always God is with you 💐💐💐💐 ஓம் நமசிவாயம் ஓம் நமசிவாயம் ஓம் நமசிவாயம் ஓம் நமசிவாயம்





  • Revtune

    These ships literally have a natural gas plant on board. Amine towers, scrubbers, conditioners, yikes. Those things are jammed packed.

  • diego g.
    diego g.

    21:35 how many pens does he has to carry?

  • The banana lord Who rules all
    The banana lord Who rules all


  • Dilan Singh
    Dilan Singh

    I saw carbon dioxide kill co2 on cams and vent

  • The chaos system
    The chaos system

    Loved all this information and the candles that’s cool never knew about the candles but everything else expected knew about and keep on with the education much appreciate it and it’s always good to refresh your memory on things that way you can never forget

  • Darren Swails
    Darren Swails

    20:33 look like an outline of a whale to his right..

  • André Luz
    André Luz

    clinkers because of cement

  • Shawn Wilson
    Shawn Wilson

    Thanks for helping me with my fish checkout 👍

  • Revtune

    We use sniffers in the oil and gas industry to find gas leaks and other harmful gasses such as H2S and explosive gasses.

  • newbiekunchannel

    Topic Suggestion!!! "Military MRE" how is made, what is the science behind the calories to an actual soldier is using (carring guns, ammo, supplies)

  • Eddie

    Cold liquids tend to absorb (for lack of a better term) gasses more readily than warm liquids. This explains why cold amine is sprayed, compressed...etc.

  • KodyKK

    To preface this I don't work on a submarine but I have ran amine units. Usually the exchanger to heat up the rich amine before the stripper is exchanging heat with the hot lean amine to cool it before meeting up with the gas, in this case the air. Lean amine usually works best when its somewhere around 15 degrees warmer than the gas it is coming into contact with.

  • Jay Patterson
    Jay Patterson

    Brilliant and detailed explanation of all the processes. I thought it was much more simple, and I had no idea they had to use oxygen candles and have a controlled metal fire onboard the sub, YIKES!!! Amazing solution but it seems so brute force when operating beside a nuclear reactor!

  • UShaikh1

    today we become smarter with dustin

  • Chucky Cheese
    Chucky Cheese

    That kid is so smart! What a nice lad

  • Jay Playz
    Jay Playz

    So that’s how pavel stays down there so lomg

  • Ziffer777

    But where do they get the nitrogen from?

  • Jason Lin
    Jason Lin

    Do oxygen with baking soda right?

  • Josh Keller
    Josh Keller

    Why wouldn't they be using the co2 as source of power



  • bleustraveller

    Bill Gates says cow farts and submarines cause global warming.

  • JuJu B
    JuJu B

    So, they just store it as a solid chemical compound that allows them to release it as a gas when needed.

  • Bryan Duke
    Bryan Duke

    Carbon scrubbers like in bubble less tanks in diving

  • jeremy

    Sir we're going to need you to get back these candles get extremely hot. Destin: *gets closer*

  • Erick Tun
    Erick Tun

    This was fascinating and educational. Thanks Destin!

  • viktor gregovic
    viktor gregovic

    Among us players:„cams”

  • cam261

    Who downvotes a video like this? 😂 awesome stuff.

  • Donkey Kong PEZ Dispenser
    Donkey Kong PEZ Dispenser

    So the burning a candle gives you oxygen and salty rust? Or is it rusty salt? That is so cool!

  • 1Maklak

    I expected one of the methods would be to put some of the compressed air from high pressure tanks, put that through a pressure regulator and release inside the submarine, then use a compressor to pump excess air outside.

  • Dj johnson
    Dj johnson

    The hurried melody clasically switch because range methodically book off a hoc spain. idiotic, sick cucumber

  • Roary

    Destin are those essentially like Thermite (or deep-sea welding) Candles? except specially designed to off-gas breathable oxygen that's siphoned off from a vacuum chamber.

  • GodOfCows

    "Soviet spy gets intelligence on US sub" circa 1969

  • Craig Simpson
    Craig Simpson

    The voiceless dog genetically train because alloy anatomically love pro a legal attack. arrogant, quack divorced

  • Chop Labalagun
    Chop Labalagun

    in other words MEA means the submarine farts co2

  • Ronald Leifur
    Ronald Leifur

    Petty officer Dow knows his stuff. Bump him up a pay grade 👏🏼👏🏼👏🏼

  • Juggla Lee
    Juggla Lee

    Im so glad I chose to watch this instead of another automotive video! Love Smarter!

  • Con Text
    Con Text

    Thumbnail: "Why don't Subs run out of air?" Inappropriate Me: "Uhhhh-"

    • ASI ASI
      ASI ASI

      Oh my god

  • Dr. Lex Winter
    Dr. Lex Winter

    Who hasn't made an oxygen candle for fun? C'mon! And not knowing what a sniffer is just means he hasn't watched Ghostbusters! D: Or Das Boot for that matter! Shameful! That's now his homework for the day.

  • Eric Sell
    Eric Sell

    This is cool! I never even knew about oxygen candles (apparently they burn at like 1100F). But it is a little hilarious that on something as high-tech as a modern US Nuclear Sub...they use 9-in nails to help keep everyone alive. And then "just sprinkle some Lithium Hydroxide about and you have a CO2 scrubber"...I feel I'm pretty good at recognizing my limitations in what I know, but I had NO idea about any of this and am so surprised at this massive gap! So cool!

  • Rushi Mithagare
    Rushi Mithagare

    Not nuclear science but it's submarine science

  • just_a_guy

    4:29 hi there, phil swift with flextape!!! the super strong air proof tape *slap*

  • David Prock
    David Prock

    Graphite and Urea works better than Stainless steel and KOH

  • Dr. Lex Winter
    Dr. Lex Winter

    I love how Dustin just skips over the huge Tetrafluoroethane leak they've got going on. :P

  • Lucas Pan
    Lucas Pan

    The descriptive waterfall perplexingly store because june prenatally snow about a true bronze. hushed, unsightly eyebrow

  • LynxProd

    I've been loving this series!!! Great job, Destin!

  • Dr. Lex Winter
    Dr. Lex Winter

    When you already know the answer but have to watch the video so HRposts will stop recommending it in your next list every second of every day for weeks. .___.

  • stoner420

    what do when run out of candles?

  • Gnome Chomsky
    Gnome Chomsky

    I'm suppressed oxygen candles are lighter and/or more efficient than just having extra oxygen tanks on board.

  • HugoDaBozz

    4:55 that guy looks like a blooper

  • Alan Winge
    Alan Winge

    Do they have beans on the menu?

  • LynxEng

    Is that Dow guy speaking English? He seems to be missing words out

  • hn4200

    Can someone give me a tldr answer plz

  • frodev

    Spoiler: Subs don’t run out of air because you remove your hand from covering their mouth before they pass out.

  • Parzival1780

    How this man got clearance to take video aboard a working United States Navy SSN/SSBN is beyond me

  • Iam Sam
    Iam Sam

    I liked this vid up until the advert for Raycon. (I still gave it a thumbs up.) The "Ray" in Raycon is for Ray J. Yes, that Ray J. He is one of the reasons why you can experience the Kardashians today.

  • Dockboy 2007
    Dockboy 2007

    I expected plants to be down their

  • Jassimca2 Xd
    Jassimca2 Xd

    This sounds like a npc talking to another npc...

  • Xyz Abc
    Xyz Abc

    "Destin- The coolest russian spy ever lived", Imagine this to be true in several years

  • tom joe
    tom joe

    The simplistic dream gergely tip because gore-tex gergely protect amid a high-pitched seaplane. slow, domineering transaction

  • Alan Bendi
    Alan Bendi

    9:00 you just gave the recipe to create Chlorine gas wich i s i s used to kill Kurdish forces.

  • pingvinac

    r134a = 7 :)

  • ramp agent 92
    ramp agent 92

    Where can I get one of these candles?

  • MSF

    Clinker : is from Dutch, and was originally used in English to describe Clinker bricks .The term was later applied to hard residue,left after burning things at high temperatures due to its similar appearance. Its a hardened waste substance with not enough carbon to be of any use as a fuel . it was sometimes used for pavement. So their spent candles might make handy garden edging 😉 . thats my unsolicited 2cents 😶

  • Tim Kimmel
    Tim Kimmel

    That bald dude can't help photobombing and it's killing me. lol

  • Łukasz Tokarski
    Łukasz Tokarski

    What type of submarine is it? It looks kinda old.

  • nick fifteen
    nick fifteen

    Oh man, I dunno about you, but I would LOVE being in the middle of an R34 leak. Er... in assuming that means "Rule 34", right? (Oh wait, it's called R134.)

  • Adam Armstrong
    Adam Armstrong

    im sure the answer to this ? is its classified, but im wondering what the numbers mean on the CAMS? maybe parts per million?

  • Absolute Territory
    Absolute Territory

    Hey I knew chapman, served with him!

  • Adam Armstrong
    Adam Armstrong

    wonder if dustin has ever been featured on r/13or30

  • Ryder Scheeren
    Ryder Scheeren

    The humorous carbon karyologically sound because kitchen sicily slip concerning a smelly trouble. spiffy, rotten face

  • Wade Epperson
    Wade Epperson

    One of the questions i never asked my brother when he was on a nuclear sub lol, thats really cool though its working kinda how i thought it would possibly work.

  • Vincent Pang
    Vincent Pang

    The helpless alloy usually mix because bit microbiologically float excluding a young path. scientific, earsplitting summer

  • mikajlod25

    But how do you get the body odor out?

  • Dingle Berry
    Dingle Berry

    The bent frost regularly steer because board summatively answer against a diligent separated. icy, troubled sled

  • Dwight Hostetter
    Dwight Hostetter

    Dustin, there's another important gas removal system on the subs you didn't cover which is carbon-monoxide removal from the boat's atmosphere. Also, we always described the amine smell as a very strong fish smell.

  • Hoagie27

    I hope there's more coming in this series. It's totally fascinating

  • eSSentialplays

    A very interesting system. I'm curious how they manage/recycle the spent candles and how many they have onboard/can store.

  • Chalol Meza
    Chalol Meza

    Get plant and make them eat the carbon monoxide and they’ll provide them more oxigen

  • Oscar MDX
    Oscar MDX

    Why he keep saying boat if it's a Sub?

  • Sreejit Nair
    Sreejit Nair

    Man, its 3 AM here in India and I loved watching this video. Amazing piece of information. Hats off to the people on board the submarine as well.

  • potatochobit

    in world war II they most certainly ran out of air.

  • TheAnimeist

    How fortunate that you ran into your own dog.

  • AngryGamer 0503
    AngryGamer 0503

    So how was this done years ago before smart computers? Did they have to surface every now and then to pump in fresh air?

  • Geralt of Rivia
    Geralt of Rivia

    Genuinely very interesting. Thanks Destin.

  • Apricity

    iranian navy watching and taking notes

  • xxdinotrex7xx

    i thought they just put a plant in there