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Title: High Speed Explosions
Added: Apr 9, 2010
Author: Thunderf00t
Duration: 1:47
Description:
A comparison of the fuel-air flame speeds in butane/air and hydrogen air mixtures.The mixtures in each case are near stoichiometry. Hydocarbons-air mixtures are typically what cars run on, just with octane-air rather than butane air. You can run rockets on liquid hydrocarbons/liquid oxygen, indeed the heavy lift section of the saturn V rocket ran on liquids oxygen (LOX) and kerosene (a moderately long chain hydrocarbon). While per unit volume of gasious combustion this actually produces more energy than the hydrogen-air mixture, the nature of that energy (spread over more molecules, with a lower temperature) means that its not a good a propellant as hydrogen-air.Hydrogen-air mixture have ferocious combustion speeds, over a vast composition range. As the energy of the reaction goes almost exclusively into the water molecules produces (which are very steam), it makes an excellent rocket propellant. Naturally most of the gas in these bottles is the nitrogen that makes up 4/5 of our atmosphere. If it were simply a H2/O2 mixture the explosion would be about 2-3x as big. Rockets run on liquidized fuel. As a rule of thumb, there is about a 1000 fold increase in density on liquefaction.This is the mixture the shuttle uses, and it uses some 4000 liters of it per second!That's the equivalent of burning some 4 million of these bottles per second!Shuttle Launch courtesy of Nasa.For those who want to know the camera is Exilim EX-FC100 which does 1000 frames per second slow motion video (about 1/30th speed). Can't tell you much more about it that it seems to work okay, and like all digital cameras it gets great reviews:- the reason I can't tell you much about it is that I made this video the same day I got the camera.... just wanted something interesting to try it out on! :-)
Related Videos:
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Channel: Tech
Tags: slow motion photography explosion fuel air mixture hydrogen oxygen butane detonation bang explosive nasa shuttle rocket car internal combustion bomb casio exilim ex-fc100 high speed camera
slow motion photography explosion fuel air mixture hydrogen oxygen butane detonation bang explosive nasa shuttle rocket car internal combustion bomb casio exilim ex-fc100 high speed camera
Youtube Comments: 1069
isabellaaudrk Says:
Nov 3, 2010 - Nice hair Asian women ***lushfmlk.info***
motanium Says:
Nov 21, 2010 - There is non "Do not try this at home" label Be right back.
chuckooful Says:
Dec 10, 2010 - wow..
kendallton11 Says:
Jan 9, 2011 - 0:50 forever.
terrymorse Says:
Jan 10, 2011 - Very cool demo, thanks! I always knew (well, since taking a Combustion class) that hydrogen has a very fast flame speed, but there's nothing like seeing it in action to hammer home the idea.
rmcdaniel423 Says:
Jan 13, 2011 - "hehe . . . significantly enhanced impulse"!
gav111393 Says:
Jan 17, 2011 - 1) Hold your breath.2) Copy all of these steps.3) Go to two other video.4) Paste it in the comments.If you can do all of this without breathing you're a god
anonazero Says:
Jan 31, 2011 - thats awesome!
RestlessMalevolance Says:
Mar 18, 2011 - That blue flame isn't science!! It's GOD!!! I love sattire :P
DragonFlyback256 Says:
Apr 13, 2011 - Truly educative video.
MalpaPL Says:
Apr 24, 2011 - like your life and personality...gtfo
Kalahridudex Says:
Jul 21, 2011 - hydrogen-based economy: for the win!
TheServiceWeb Says:
Aug 27, 2011 - NEW BOOK (Donated) For Debates And GovernanceTopics: WINNING ARGUMENTS FOR CREATIONISM-EVOLUTIONISM DEBATE (See Subchapter 10.2.2, Chapter 10, of Part Two.), The Issue On The Criminal Liability Of Foretelling The END OF THE WORLD, Other Debated Issues, Terrorism, War, Law, Politics, Religion, Philosophy, Science, Others.Websites: balancedway.yolasite.com balancedway1.yolasite.com See Announcements at announcements-balancedway.weebly.comannouncements-balancedway.yolasite.com
danrayson Says:
Sep 12, 2011 - This vid had me goin' - "forkin' 'eeeeeell."
rommelfcc Says:
Sep 29, 2011 - @adiostraitorobama Agreed ^_^
Crowz Says:
Dec 5, 2011 - You used different masses how can we compare the explosions...
henkman00 Says:
Jan 12, 2012 - why did it say this video was posted 47 years ago? :P
www9311 Says:
Feb 5, 2012 - Narrated by Pierce Brosnan
Vict0r1984 Says:
Mar 15, 2012 - @GravDiga: "Just like Chris Rock said...they can build a car that will last 50 years but where's the profit in that?!?"That's why the planned economy will thrive in the developed world after the failure of the free markets... If a single economic entity (the state) controls every sector of the economy, the costs of creating such cars would be very low, as the only thing paid for the raw materials needed to manufacture the car would be the wages of the employees. Under capitalism, the hydrogen
Vict0r1984 Says:
Mar 15, 2012 - dealer, the tires dealer and the steelworks would get a profit as well and there would be several VATs imposed by the state during the economic circuit of the raw materials, so the costs would be much higher. Sure, the biggest problem would be the almost unsellable prices of a car which resists 50 years, because it would have to be at least equal with the price of all the regular cars the company would sell to a person during that period. Under socialism, the low costs would compensate a lot.
ReRe Jones Says:
Mar 23, 2012 - lol
karl68012 Says:
Apr 11, 2012 - Per second????...Holy Crap!!!..
theraichuking Says:
Apr 26, 2012 - are you from the future :o
henkman00 Says:
Apr 28, 2012 - and that sir is a very ironic question seeing i bought the Back to the future movies on blu-ray and finished the game yesterday :D LOLbut seriously it said this video was posted 47 years ago when i wrote it, Youtube bug maybe? a joke? who knows :Pbut yes its 2059 now, and its an amazing time...we have flying pigs, we found intelligent life on the Moon and economy is based on wooden shoes....
HydroFred Says:
Oct 22, 2010 - Hey, check out the HydroGun. This is truly a real spitfire.