How to Convert Water into Fuel by Building a DIY Oxyhydrogen Generator

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Picture of How to Convert Water into Fuel by Building a DIY Oxyhydrogen Generator
Here's how to build a sexy looking generator that uses electricity to convert water into an extremely powerful fuel!  In this project, you'll learn how to build an OxyHydrogen generator from scratch.

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Step 1: What Is an OxyHydrogen Generator?

An oxyhydrogen generator, like this one, uses electricity from your car battery to split water into hydrogen and oxygen gasses.  (Electricity + 2H20 --> 2H2 + O2)  Together, these make a fuel that is much more powerful than gasoline, and the only emission released is—water!

Of course, to be a completely clean fuel, the electricity used to generate the gas needs to be from a clean source.  Solar, wind, or water power could be a few examples.  

This video shows step-by-step how to make one.  

NOTE: The amount of electrical energy required to make the gas is more than the energy you can obtain from it.  This is NOT an energy generator so much as it is an energy converter.  

Step 2: Getting Metal For The Generator Plates

Picture of Getting Metal For The Generator Plates
For this project, you're going to need some stainless steel and some ABS pipe fittings. I visited a local fabrication company, and not only did they have plenty of scrap metal to choose from, they were even willing to help me cut it to custom sizes. A job that would have taken me hours with a pair of tin snips and a hacksaw took only a matter of minutes with their equipment.

I used 20 gauge stainless steel, and with the help of their hydraulic punch, cut precise holes in the tops and bottoms of the plates. When finished, I had 12 plates measuring 3" x 6", 4 plates at 1-1/2" x 6", and three 1" connector bands that were 6", 4-1/2", and 3 1/4". A belt sander was used for smoothing down the jagged edges around the hole.

Step 3: Increasing The Plates Surface Area

Picture of Increasing The Plates Surface Area
Next I used 100 grit sandpaper to sand each of the plates diagonally. You can see the "X" pattern I sanded into both sides of the plates. This increases the surface area of the plate, and will assist in producing more gas.
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crogshockey3 months ago

What sort of water should you use i.e. rainwater, tapwater, distilled??

Distilled water mate, as it has little (or no impurities)
Will help keep the generator cleaner for longer as it will not corrode the plate as quickly...

Distilled water cannot conduct electricity... This is why it does not matter what water you use as long as you add an electrolytic compound like Potassium Hydroxide or Sodium Chloride.

-- Think before you speak

maybe you shld think before you speak as well :-) if you use Sodium Chloride ( 'salt') the result will be chlorine gas due to competing half reactions :

2 NaCl + 2 H2O → 2 NaOH + H2 + Cl
instead of

2 H2O → 2 H2 + O2;
by the way, the NREL
estimated that 1 kg of hydrogen (roughly equivalent to 3 kg, or 4 L, of
petroleum in energy terms) could be produced by wind powered
electrolysis for between $5.55 in the near term and $2.27 in the long

Since distilled water is purified and does not
contain any impurities, it is unable to conduct electricity. Water
molecules on their own have no charge and as a result they cannot swap
electrons. Without the swapping of electrons, electricity is unable to
travel through distilled water.

-- I'm a teenager by the way

i can tell :/... you should show a little more respect

Respect? No, not if one is not understanding my response and adding unnecessary comments like competing half reactions when hydrogen gas is still a product of the reaction as I was only talking about the efficiencies of different catalysts for the production of hydrogen gas... not chlorine.

There is an open door and you are kicking it in. There are a hoist of salts you can add, but again, I simply said that NaCl is a bad choice to add.

Dude.. I wasn't talking about the byproducts of sodium chloride and dihydrogen monoxide electrolysis. All I was talking about was the fact that distilled water without any electrolytes will not conduct electricity. Think before you speak.

Obviously you weren't, but you suggested NaCl. I simply said that is a bad choice because you get Chlorine gas that way that mixes with the H2. You dont want that in yr car or in the air and it makes the process less efficient.And yes I was thinking before I spoke. That is why i mentioned it

it shouldn't matter, you add things to the water anyways.

Does it matter what thickness the steel is?
brightled23 days ago
there is a patent on this project also check on an old report about the car that ran on water that outlines the whole thing ,it explains how to build the conversion system and alos how to adapt a carburator car motor to run on hyd gas.....I believe its called the water carburator the whole thing was bought by the oil companies back then.....WCH
woodNfish2 years ago
If this were truly viable, everyone would be doing it, but I do have some prime swampland in Florida I'd like to sell you.'ve heard of hydrogen powered cars right? Well they use hydrogen and oxygen as fuel, and the only thing keeping them off the streets is the safety hazards of compressed hydrogen. Once a safety method is configured around that, this will be used in most likely every future car. "Electric cars" are simply a stepping off point, they won't last.

There are several things keeping hydrogen powered cars off the streets.

First and foremost, is the inefficiency of creating the hydrogen. If you're going to burn fuel to make electricity, and then use electricity to make hydrogen fuel, you might as just burn the original fuel to accomplish your task, and skip the electricity and the hydrogen in between.

The second bar to hydrogen powered cars is lack of infrastructure. This *could* be overcome -- notice how we're putting electric cars on the roads, even though *most* of the infrastructure is oriented towards gasoline and diesel. Electric car infrastructure is growing, but people started buying the cars back when they could (mostly) only charge them at home.

Third is storage. Hydrogen requires either cryogenic temperatures, or insane pressures, or fancy molecular adsorbents.

Fourth, hydrogen has a bad reputation. Who hasn't heard of the Hindenburg Disaster? Sure, you know and I know that it's no more explody than gasoline (which isn't saying much), but people think about these things with their guts, not their brains.

before the invention of the model T, weren't there electric cars with powerstations almost everywher in NYC

Yeah, I'm aware of them, but it takes more power to split the water than what you will get back from the hydrogen produced in addition to hydrogen being very unstable.
The biggest problem is not only safety issue, but the energy density of hydrogen or oxygen is so much ridiculously lower than fossil fuels. You will need to burn up a couple grams of Hydrogen and Oxygen to get the same energy from just burning a microgram of gasoline.
The difference being you can catch some rainwater in a cup.

Alternatively, go build an oil rig, drill a few thousand feet down with highly skilled workers and a ship-load of equipment, pump it into a holding tank, ship it to a refinery (hoping the captain isn't drunk or drugged up and runs aground killing an ecosystem and millions of wildlife), refine it, put it in a tanker and deliver it to a gas station where you use your own gas to get to and fill your tank up costing whatever the market feels like charging that day.

No thanks. I'll go for the water -> HHO any day. ;)
"No thanks. I'll go for the water -> HHO any day. ;)"
So , my question here is, if this became a viable option, and all cars, power stations and other bits and bobs ran on water, what are we going to do when the water runs out?
the thing is, the electricity is simply converted, the water doesn't actually burn.
No, what none of you seem to understand or willfully ignore is the fact that it takes more energy to separate out the hydrogen than you will ever get back by burning the hydrogen as an energy source. In other words you will spend $10 to get $5 in return. Does that seem like a smart thing to do?

On a closed-system, the energy absorbed by the HHO during electrolysis is equal to the amount of energy released during oxidation. The actual energy loss is at the electrolysis device. But, internal combustion engines use atmospheric gases energized by the sun 24/7. As HHO and Atmospheric Oxygen is mixed, there is a probability that the sun-energized oxygen is used to oxidize the hydrogen. That reaction, releases more power than what is needed to separate the hydrogen. Thus, HHO used in engines can release extra energy to run the alternator (to release more hydrogen) and enough energy to do work.

vortex11 EliakimG3 months ago

What sort of water would you recommend using i.e. rainwater, tapwater, distilles water

haunj EliakimG5 months ago

Energy efficiency in internal combustion engines does not change with the fuel used. Efficiency is all about heat gradients. You have to get rid of the heat, and that take energy. The more heat you generate, the more work has to be done to remove it. So it is self limiting. Most IC engine only get about 38% to 40%.

And what you don't seem to be addressing is or willfully ignore is the fact gasoline has to be collected by some means, transported, and refined. The energy process to get oil into gasoline and into you car overall is still likely greater you can't just collect gasoline in the form we use it from anywhere.

After you buy the solar panel, how much does the sunshine cost that will make $5 worth of hydrogen? That's right, zero.

Take the cost of a solar panel, about $1 per watt and divide it by the energy generated over the lifetime of the panel. So, 250 watts, costs $250 to purchase the panel. It produces about 1250 watt-hours per day on average. That's 1.25 kWh, at say 16 cents per kWh or about 20 cents, per day, times 365, times 25. $1825 of electricity for $250. Pretty good. Even when I get $912 worth of hydrogen, it's still good.

So $250 per kWh divided by 11,400 kWh = 2.2 cents per kWh. or perhaps 4.4 cents per kWh of the equivalent amount of hydrogen. Still great.

Solar panels are expensive and fragile to be installed in a vehicle. A simple alternator in existing engine system can do the work to sustain the HHO production while charging battery. Though, to start the system, it uses battery charge.

ChrisB13 EliakimG5 months ago

I think he was implying that building a solar powered fuel cell generator at home, then using that fuel in your vehicle would work. Not that you would generate your own fuel on the road.

Your alternator is powered by the fuel, at a low efficiency. This fuel is generated by electricity, at a low efficiency. So using your fuel to generate more fuel is so inefficient as to be a complete waste of time. The added work generated by adding load to the alternator would never come close to being recouped.

cvachon EliakimG5 months ago

If the alternator makes electricity that fuels the HHO production, the alternator will have extra resistance, which will further tax the engine and burn more fuel. I agree that the HHO might make the combustion more efficient, but the electricity is not "free." It has a cost in gasoline as the alternator has more resistance. Energy cannot be created or destroyed, and it just moves around. Solar panels have been on vehicles for fifty years, including vehicles in space. Solar car races happen in multiple places every year. Anyhow I was not thinking of HHO for car engines in particular, but in general for a fuel for other purposes.

The 25 is the years of life in the solar panel.

And $250 per panel. it's late...

Explain it to us woodNfish. If you are using free water and free energy from a solar panel how does you $10 in $5 out theory work?


It takes 2 molecules of hydrogen and 1 molecule of oxygen to make 1 molecule of molecule of water

You have a cup holding 10 molecules of water.

You remove 2 molecules of hydrogen and 1 molecule of oxygen from your cup?

You're saying that your cup still holds 10 molecules of water?

The difference is that when gasoline or any other fossil fuel is burned it is destroyed forever. When Hydrogen is burned the result is water so it is a renewable cycle. You break water into hydrogen and oxygen. You burn the hydrogen and you get water again.

H'lo again chastjones,

Ok, so you're telling me that you'll end up with just as much water to create HHO as you started with after the HHO has burned? Alone, HHO is a combustible mix, but it will still come into contact with the atmosphere at some point during it's combustion. Since our atmosphere is a blend of oxygen and other gases. When HHO burns it also burns the nitrogen, releasing various oxides of nitrogen as well as what's produced with the various other gases in the atmosphere. I do not believe it to be possible to end up with the same amount of water to create HHO as you will after the combustion of that same HHO.

Assuming that no free hydrogen escapes to the atmosphere un-oxidized, then yes, you will end up with exactly the same number of water molecules as you started with. If some of your oxygen ends up reacting with carbon or nitrogen or some other element then free oxygen from the atmosphere will be required to completely oxidize the remaining hydrogen.

Hydrogen is one of the most reactive (if not the most reactive) elements. With the mixture HHO+atmospheric gases, it is improbable that free (not reacted) hydrogen escapes in the exhaust.

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