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How to assemble a HHO Generator and why it works

How to assemble a HHO Generator and why it works
How an HHO generator works and helps you save gas

An HHO or Brown gas generator is an interesting and often misunderstood technology.
The Brown gas generator uses electrolysis to split water (H2O) into it´s base molecules, 2 hydrogen and 1 oxygen molecule.
This is why it is often referred to as an HHO gas generator.The HHO in itself is not an alternative to gasoline but a additive
to boost the efficiency of the engine. Gasoline engines are unfortunately not burning gasoline to its full potential. See http://en.wikipedia.org/wiki/Engine_efficiency
The average gasoline engine in a car is about 18% to 20% efficient. That leaves a lot of room for improvement and Brown gas is one good way of improving the efficiency. The reason for this is simple, the hydrogen is highly flammable much more so than gasoline so when your engine ignites the hydrogen the explosion ignites the gasoline with much better results (cleaner, less waste and fewer emissions) than it would otherwise have done.

Some basics the burn speed of hydrogen is 0.098 to 0.197 ft/min (3 to 6 cm/min) compared
gasoline´s 0.00656 to 0.0295 ft/min (0.2 to 0.9 cm/min).

The hydrogen explosion is so fast that it fills the combustion cylinder at least 3 times faster then the gasoline explosion and subsequent ignites the gasoline from all directions  (it is like putting flue on a fire), instead of just a spark in one end of the combustion cylinder, and we would like to do that because the gasoline only has a short time in the combustion cylinder and if its not fully burnt in that short amount of time then it just goes out the exhaust and is lost.It is also preferable to ignite all of the gasoline when it is under maximum compression in combustion cylinder to get the maximum amount of energy out of it (this is a small time window),whonce the piston starts going down the energy transfer from the explosion to the engine becomes less efficient.

The hydrogen´s higher burn temperature and explosive force is such that it cleans the soot that collects in the engine (it is like having the engine consistent maintains) and with a cleaner engine you get better mileage and fewer oil changes .


 
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Step 1Tools and main components

Tools and main components
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Tools:

Screwdriver
Glue gun
Drill and bits
Metal saw
Soldering iron
wire crimp
wire cutters

Components:

HHO Generator
Pulse width modulator (PWM)
Electronic Fuel Injection Enhancer (EFIE)
Electric wires
Hose
Air connector
On/Off switch
Straps
Cable connectors
One way air valve
Piece of sheet metal
Peace of rubber
Glue

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28 comments
Apr 1, 2012. 12:01 PMlloydrmc says:
That's the spirit!
Apr 1, 2012. 2:26 PMydeardorff says:
on some other comments below. Does it take alot of energy to release hydrogen? no. as little as 6vdc and a few amps will release hydrogen and oxygen. Now to correct another its not called hho for fun. Its hydrogen x2 and one oxygen, or O. not H2 and O2. If it were that would be hydrogen peroxide. LOL

And as far as energy goes. Its in what were releasing. Hydrogen is very powerful. And its THE most abundant fuel source. So it make perfect sense to use it. as our methods to extract it become more efficient its use will become more prevalent.
The reason I would presume its not being used as a primary fuel source yet, it no one would make money off of it. honestly ask your self, would would profit from it, and you have your answer as to why its not being researched!
Apr 2, 2012. 5:35 PMlloydrmc says:
The reason that it isn't used as a primary fuel source is that it isn't a fuel source at all. A fuel is something that takes less energy to create than it yields.

Gasoline passes that test easily. Hydrogen does not.
Apr 3, 2012. 9:04 AMydeardorff says:
Wow, so your saying hydrogen isn't a fuel source? Hmm I guess we could ask the Challenger astronauts about how violent hydrogen is, but, oh yeah they re dead. They found out first hand. That's why hydrogen lifts rockets into space and not gasoline. LOL
So your saying that gasoline takes less energy to create than hydrogen, LOL. So the drilling, piping, and refining, of fossil fuels costs no energy?
And applying 12 vdc to water with a salt in it, releases pure hydrogen, and pure oxygen with less than 15 amps if less energy efficient?

Nope sorry, do your homework, learn some chemistry then come back and we can talk.
Dec 11, 2011. 11:24 AMydeardorff says:
error in the text about the PWM, I meant EEIE.
May 6, 2011. 9:31 PMhiggrobot says:
Ah this old claim again, I remember when NASA used exhaust heat and a catalyst to generate hydrogen and they decided it was pointless. Then, many years later, scambags convinced people a 60% efficient alternator could do a much better job, lol. Also, faster burning fuel does not equal more efficiency, more power or more anything, just gives the engine management system a headache.
Apr 1, 2012. 11:54 AMlloydrmc says:
That's the spirit!
Nov 19, 2011. 1:22 AMddalleinne says:
i really didnt expect such stupid comments...people have this knee jerk reaction to improveing gas engines i guess.....the comment of " if it worked everyone would be doing it"...is the top of the moron list in my book..thers a million ways to get better milage they dont put on most cars.....and it seems that they didnt even read it....ill admit when i first heard of it , i thought people were tring to get power from the hydroge/oxy reaction...now i can understand it comes from a more complete combustion...thank you very much for explaining how this things work
Apr 1, 2012. 11:53 AMlloydrmc says:
Oh, it gets worse than that. A LOT worse than that. Check the rhetorical beat-down that a couple of people are attempting on me here: http://www.instructables.com/id/HHO-car-adaptation/
May 1, 2011. 8:46 PMmr.incredible says:
It is not Brown gas. It is sometimes known as "Brown's Gas". Named after Yull Brown who advocated it. http://en.wikipedia.org/wiki/Oxyhydrogen

What are your actual results?

I've been working on a similar rig. So far I've been able to run a Briggs and Stratton motor on it briefly.
May 2, 2011. 2:21 AMHarveyH44 says:
Doesn't it take quite a bit of energy to separate water into Brown Gas? I don't believe anything comes free in this world, and if Brown Gas had such great potential, it would be used all over the place by now, since this is far from a 'recent' discovery. You put more energy into making Brown Gas, than you get back out of it. The boost in MPG, isn't any different, than say properly maintaining and tuning your vehicle, or changing your driving habits. But, it is nice to dream, and everyone needs a hobby or two.
Apr 1, 2012. 11:44 AMlloydrmc says:
Cool. "...nice to dream..."
May 6, 2011. 2:09 PMDarkStarPDX says:
I'm pretty sure the additional electricity your alternator has to provide to generate the hydrogen outweighs the additional efficiency provided (a.k.a. perpetual motion). Throw some large solar panels on the top of your car/truck to power the HHO generator exclusively and then you might have something.
Mar 2, 2012. 1:33 AMmayur.phadte says:
So u say that electrolysis of water takes up more energy than hydrogen explosions?
Hydrogen burning=Chemical energy harvested
Hydrogen separating=bonding energy destroyed
I know u are applying conservation of energy.
But the energy liberated after burning H was not the energy provided by electrolysis.It is chemical energy,it was already there.
Mar 12, 2012. 11:06 PMsquiggy2 says:
Bond energy IS chemical energy. Breaking the bonds in water molecules requires exactly the same amount as is released when those same bonds form in an explosion. wikipedia enthalpy if you would like to know more.
The problem is though, that alternators are not 100% efficient, and nor is the electrolysis process, due to electrical resistance. Therefore, it takes more energy to split the water you get back from the combustion.
HOWEVER
To my understanding, correct me if I'm wrong, but using HHO as a fuel additive isn't as simple as getting only as much energy as the HHO provides, but I think it actually improves the efficiency of the petrol combustion, so you would end up getting more out of your engine despite working the alternator extra hard.
Can someone confirm this?
Mar 14, 2012. 4:13 AMmayur.phadte says:
During electrolysis,H20 separates,so molecular bonds are broken.
during HYRDROGEN explosion,I don't know the actual REACTION EQUATION.So I maybe wrong there.But understanding the amount of energy evolved in a hydrogen gas explosion I don't really think it is supplied by the battery.
Mar 14, 2012. 5:41 AMsquiggy2 says:
Sorry I didn't really understand your response, but am I right in thinking you meant to say:
"Electrolysis supplies energy to breaks molecular bonds. Hydrogen gas explosions release a lot of energy, which was not originally put in by the battery".
If that's what you meant, then this is my reply:

The equation for electrolysis of water is as follows
2H2O + energy => 2H2 + O2

The equation for combustion of hydrogen is thus
2H2 + O2 => 2H2O + energy

It's the exact reverse. Hydrolysis is just a backwards explosion.
If you don't believe me there, here's something to ponder...

The first law of thermodynamics states that "energy can be neither created nor destroyed"
This means that the total energy of the system, in all its forms, must be equal both before and after a reaction. So...
If the system has x amount of energy, provided by the battery to electrolyse the water, where does the extra energy come from which is released by the hydrogen explosion?
The energy has to be in there originally, to be released, so according to your explanation, if you electrolyse water, then combust the hydrogen, electrolyse that same water and repeat 100 times, then the hydrogen would eventually run out of energy because electrolysis doesn't put back in as much as combustion releases...
Mar 14, 2012. 1:17 PMmayur.phadte says:
All you say is right,provided the explosion reaction reaction of hydrogen is the same as you have written.I don't know,though that's logically right(the reaction).
So,yes if thats right then the combustion helps in the fuel burning properly.
:P Thanks :P
Aug 5, 2011. 11:25 PMlucek says:
Yeah he's got a rather poorly designed pseudo electric car. Forget the fact that even with a pretty good energy source thees devices can't produce that much gas/minute. producing the same amount of force from thees it take 3 times the mass of water then gasoline. You rarely see one of thees devices with more than a few gallons of water. And again is you have the perfect device at the theoretical best efficiency 94% (best devices ever made are in the range of 70%, I've not tested this device but a device in a lab under perfect conditions are working at 70% this ain't even close.)
Apr 1, 2012. 11:58 AMlloydrmc says:
That's the spirit!
Jan 6, 2012. 5:59 AMjj.inc says:
The most efficient, powerful, and money conserving device you can build is a dry cell. (If we aren't talking those high tech membrane machines) It has multiple plates which aren't fully submerged, but instead contain the mixture inside. They are easy to access electrically, and can produce huge amounts of HHO. The most important thing for people to know is that no-matter what, this is going to produce toxic gasses. This can include Chlorine, something formed with chromium, and many others. Hopefully they re-bond to something during combustion and aren't a problem.

For all the nay-sayers please explain why a super and or turbo charger benefit your car.
May 16, 2011. 6:57 PMsnowluck2345 says:
The reason gasoline egines are not very efficient is because of the amount of resistance and waste heat, not the unburned gasoline. Regulations state that very little if any unburned gasoline can be ommited. HHO doesn exist, its H2 and O2 thats it.
May 6, 2011. 9:53 PMtyeo098 says:
Or instead of being a hippie (lol)

Use it for an HHO welder!
May 6, 2011. 8:31 PMrimar2000 says:
At Intro you say: "...Some basics the burn speed of hydrogen is 0.098 to 0.197 ft/min (3 to 6 cm/min) compared gasoline´s 0.00656 to 0.0295 ft/min (0.2 to 0.9 cm/min)..."

I think there are an error in these numbers. If min = minute, these speeds are extremely low. Moreover, very interesting.
May 2, 2011. 6:57 AMmircho says:
Because the title is "How to assemble a HHO Generator and why it works" I failed to find the explanation of the second part - why it works. Did you forget to add it? Then you should expand your instructable.
May 1, 2011. 10:18 PMmircho says:
As you took the time to link to the Wikipedia article that discusses the efficiency of ICE engines, please, take the time and link to the Wikipedia article that discusses the effectiveness of HHO generators, Brown's gas generators and similar methods that "boost" efficiency.

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