HHO Torch Flame Modification and orfice Geometery
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- čas přidán 18. 02. 2015
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Support this channel on Patreon www.patreon.com/user?u=3620781 doing some test to see if i can change the shape of a oxyhydrogen flame by adding a bezel to the orifice of my torch tip Oxyhydrogen will combust when brought to its autoignition temperature. For the stoichiometric mixture, 2:1 hydrogen:oxygen, at normal atmospheric pressure, autoignition occurs at about 570 °C (1065 °F).[5] The minimum energy required to ignite such a mixture with a spark is about 20 microjoules.[5] At standard temperature and pressure, oxyhydrogen can burn when it is between about 4% and 95% hydrogen by volume.[5]
When ignited, the gas mixture converts to water vapor and releases energy, which sustains the reaction: 241.8 kJ of energy (LHV) for every mole of H2 burned. The amount of heat energy released is independent of the mode of combustion, but the temperature of the flame varies.[6] The maximum temperature of about 2,800 °C (5,070 °F) is achieved with an exact stoichiometric mixture, about 700 °C (1,292 °F) hotter than a hydrogen flame in air.[7][8][9] When either of the gases are mixed in excess of this ratio, or when mixed with an inert gas like nitrogen, the heat must spread throughout a greater quantity of matter and the temperature will be lower.[6]
Production[edit]
A pure stoichiometric mixture may be obtained by water electrolysis, which uses an electric current to dissociate the water molecules:
electrolysis: 2 H2O → 2 H2 + O2
combustion: 2 H2 + O2 → 2 H2O
William Nicholson was the first to decompose water in this manner in 1800. The energy required to generate the oxyhydrogen always exceeds the energy released by combusting it, even at maximum efficiency, the input energy of a closed system will always equal the output energy, as the first law of thermodynamics states. (See Electrolysis of water#Efficiency).
Applications[edit]
Limelights used an oxyhydrogen flame as a high-temperature heat source
Lighting[edit]
Many forms of oxyhydrogen lamps have been described, such as the limelight, which used an oxyhydrogen flame to heat a piece of lime to white hot incandescence.[10] Because of the explosiveness of the oxyhydrogen, limelights have been replaced by electric lighting.
Oxyhydrogen blowpipe[edit]
Nineteenth century bellows-operated oxy-hydrogen blowpipe, including two different types of flashback arrestor
The oxy-hydrogen blowpipe was developed by English mineralogist Edward Daniel Clarke and American chemist Robert Hare in the early nineteenth century. It produced a flame hot enough to melt such refractory materials as platinum, porcelain, fire brick, and corundum, and was a valuable tool in several fields of science.[11] It is used in the Verneuil process to produce synthetic corundum.[citation needed]
Oxyhydrogen torch[edit]
An oxyhydrogen torch is an oxy-gas torch, which burns hydrogen (the fuel) with oxygen (the oxidizer). It is used for cutting and welding,[12] metals, glass, and thermoplastics.[10]
Due to competition from the acetylene-fueled cutting torch and from arc welding, the oxyhydrogen torch is seldom used today, but it remains the preferred cutting tool in some niche applications-see oxy-fuel welding and cutting.
Oxyhydrogen was once used in working platinum because at the time such a torch was the only device that could attain the temperature required to melt the metal 1,768.3 °C (3,214.9 °F).[6] These techniques have been superseded by the electric arc furnace.
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Do you still have this torch? I was wondering about whether one could “glassify” or fire, that coating you are working with now.
Might also be able to melt zirconia into the surface of refractory, and create a hard surface on soft/insulatove refractory.
Also, what’s your screen name on Donkey’s forum? I’m Coastal Rocketeer.
Good demo sir.
Thanks sir for this very use full information.... which gasket materiel you used is this hho gen ? and what is the gasket thickness in mm? which is the best gasket for hho welding machine ( high temperature) .
Curious if you have tried a rose bud fitting with the hho gas
Special anti-reflux arrester to prevent flame reflux with oxygen or acetylene???
Great work! Soooo... @13:00, is that the super special electrolyte additive?
Sl pero al mermale precio la precio adónde va que pasa con esa cantidad de ldrgueno
On the stove tip.....is it a constant diameter through the hole? I was wondering if it was bigger, then necked down for the final orifice, then opened up with the bevel. Would having a larger diameter inside cause more turbulence when it was forced out the smaller hole? You can't modify the torch tip like that, but maybe an add on tip like the stove tip. What if the hole or bevel was square or elliptical? Thinking about the gas lens on a tig torch and it's affect on gas flow......I wonder if a small piece of sintered bronze in the back of the stove tip might stir the gas and disrupt the flow to soften the flame. I don't really know anything about this......just asking questions. :)
Mike
good comments mike actually this torch does have a sintered bronze insert in the nek but not as you suggested , im finding very little help because there is almost no info on oxyhydrogen flame control
NOBOX7
Everything I was finding was related to diesel injectors. lol What about a tip like an oxy/ace cutting torch? I'm curious to see if you come up with a solution. :)
Are there any lessons in pressure washer tips? 0-25° tips. Then there's the spinning tips. The spinning tip would be a heck of a torch!
I work with copper/stainless steel
can an HHO torch weld/braze/solder copper and/or stainless?
Yes it is an excellent brazing gas but you have to add acetone or a small amount of propane
since the gases are equal pressure would you say its a neutral flame? cause i heard you say its non of those flames?
proportional pressure, but you're right. it is a neutral flame.
@@ll-cj9yc im not so sure what it is because apparently this gas is a whole new ball game
It is called an ineffective flame. It should be burning as fast and hot as possible. I am not meaning to be a Smart horse but look up (torch flame labeled).
To be more technical. You extended the Feather of the flame, distorting the inner cone (collen) of the fire. The tip of your inner cone is the hottest spot. You want it to burn as natural as possible. Your Turbo torch is an ineffective torch flame, with an *elongated feather and distorted inner cone*. Answer here*
Now to get more in the science of this, you can get somewhere with the Cone shape in the top pointing heat back to fire. But it needs more to it. And this is rocket science. Not doing it for free. ;)
what is all of this? is that contraption generating hydrogen and oxygen by electrolysis?
yes
@@NOBOX7 can you not get hydrogen in cylinders from a weld shop? juts asking because im not sure myself,,i have made a mini blow torch that i run off oxygen and propane but id like to be able to weld and there is no gas for that other than acetylene ,im looking for something i can purchase at a hardware store to use for welding gas like they have for propane or map/pro small B tanks,,would be awesome if hydrogen was sold like that too,,its enough that i have a 60 cuf oxy cyl but i do not want to get acetylene like that and prefer to find some substitute gas for welding instead of juts soldering and brazing like im doing now,,,check out my torch if you like there is a vid of it on my ch
Try adding some inert gas like nitrogen to it to slow it down.
Or actually try a swirl style turbo tip with hho instead of propane just to see
Wonder how the adjustable torch works, we could easily assume it has a needle in the tip, like a paint spraying gun.
But assumption is the mother of all f**k ups
;)
I agree with you i bet its like a pelton turbine needle valve , ever seen one of those ? i have a hunch that oxy hydrogen will destroy that guys very expensive torch , i will try and find his name if your intrested in seeing it , something tells me over time the torch will be destroyed as hho will devour stainless steal and even tungsten
SERVER S is his channel name , i will send you the name of the vid when i have time
I have been watching HHO for a good 48 hours now. And I think I should build something and put it on CZcams. For one I think I can make better generators for HHO. For 2 why is everyone so confused with this topic? Why is everyone using a torch that combines HHO to early? Have you never gas welded before? Oxy and acyt and separate from each other. First you turn on the acetylene, next your strike the fire. Because oxygen is not in the same tube the fire cannot travel up the tube. Then you turn on the oxygen and that mixes at the tip of the torch. Why is no one burning Hydrogen on here with oxygen in a separate line? You could adjust the flow to make it way hotter. Just saying :3
you miss the point
You are funny expert after a day
Hho heating
The camera can't see through that fire. I hope your wearing welding goggles.
14:56 I must say, the way you hold that flame on the rod, makes me cringe. Please use the torch correctly. Again, look up a torch label on google. Then remember what I said, "Use the tip of the inner cone". It is okay to bend the feather. Never bend the tip of your inner cone from getting to close. And don't get to far, the max heat is the exact tip of the inner cone.
I think you mean orifice
Yeah, he can't spell for shit.
If you are referring to his comment of "spud" he is correct. Orfice is another name but the orfice is the hole in the spud being the body that is often removable from a burner assembly.
@@paulkainer269 I have never heard this word and can not find any listing of it anywhere. So if you have any source information please feel free to share.
@@paulkainer269 If that is true I can't find any supporting evidence for you claim about the word 'Orfice" where potatoes are concerned or any other form of spud.
@@chapmansbg hahahahaa I will look up definition in csa gas code it is there.
Wrong spud definition . Cute though. Prefer red potatoes myself. Yucon gold is good too should try