Instructables

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
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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

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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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selectum217 days ago
Could I get a complete list of the parts and there sizes and dimensions please?
geraldpaxton2 months ago

Reading over the comments here, many questions...sodium or potassium hydroxide can be ordered from Duda Diesel, 1lb or more. I've seen a unit to power a car, roughly 100-6x6 inch plates in a 1" thick plexaglass box with a 12v to 110 inverter supply for power. Urine for electrolyte produces hydrogen only. Hydrogen can be stored in a sintered titanium/iron mix at low pressure and density as great as liquid, Mercedes busses in germany were hydrogen powered and used this storage method.

Hi Gerry! Please tell me more about Urine as an electrolyte! What ratio? And you say an "inverter" as in 12DC to 110 AC? surely you meant "transformer"?

Peace to you and your's, Glenn.

I found the 'Urine' converter in a new's report about 3 African girls who had built a system from a couple of bottles and were using their urine to run a generator and a university study/report that said the voltage required was lower. There are "P" power systems on you tube. The 100+ plate system is built by a man named Boyce and the output of the inverter drives mosfet oscillators at 3 different frequencies feeding a toroid transformer. His system produces 50-100 liters per minute of HHO.

abrown391 year ago
so I have a question, just the inner 2 and outer 2 plates are connected to power? the outer 2 being connected electrically by the bottom "bracket" and the 2 inner being connected by the nuts correct? And then the remaining 4 plates are neutral being separated from direct current by the plastic washers? if you could explain that a little more that would be a huge help. or if my assumptions are correct a simple yes will do.

Hey abrown39, did you ever get an answer?

krash abrown391 year ago
I have been wondering the same thing.
krash krash1 year ago
Just found this. Here's our answer! http://hho4free.com/neutral_plates.htm
woodNfish1 year 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.
Lol...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.
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.

Huh?

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.

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?
It doesn't run out. Split water into HHO, burn it producing (mostly) H2O, and re-use.

Plus Earth has a truly unimaginable supply of water. It's everywhere. Even in a desert, using a solar still water can be wrung from thin air. (Probably not enough to power an engine but it IS there.)

Can't say that for oil - even if some of the oil is found in desert regions!

Well you are both right and wrong about that. Hydrogen has 1/7 the energy density as gasoline by volume but it has 5 times more energy density than gasoline by weight. This is why they uses hydrogen to power rocket engines. hydrogen is actually more stable than gasoline under the right conditions. Under the wrong conditions you get the Hindenburg.

catprog syntaxing6 months ago
Hydrogen has a value of 286 kilo-joules/mole
http://cleanenergy.ucla.edu/engen_hydrogenproduction.html

gasoline has a value of about 5460 kJ/mole
http://www.ausetute.com.au/heatcomb.html

2g/mole for hydrogen
114.23 g/mole for octane

143 kilo-joules/ gram for hydrogen
47.8 kilo-joules/ gram for octane

Hydrogen is almost 3 times more energy dense by weight then gasoline.

Weight of gasoline 0.737 kg/L
Weight of hydrogen 0.009 kg/L

35,228.6 kilo-joules/Lfor octane
1,287 kilo-joules/L for hydrogen

Gasoline is about 30 times more energy dense by volume then hydrogen.

You are probably thinking per volume not by weight
I hear / read this statement a lot: takes more power to split water than ...".

Has anyone ever calculated how much energy it takes to dig up the iron ore (and make the machines to do the digging), smelt the ore into steel, forge the steel into oil rigs, tow the oil into position over the sea bed / transport and construct on a land site, transport the workers to operate the rig, actually operate the rig, pump the crude oil or transport it to a refinery, refine the oil, transport the gas to the gas station, and for the end-user to drive to the gas station to pump the gas?

I wonder how much energy there could possibly be a in a gallon of gasoline? And is there so much that it's MORE than the energy required to produce it?

I'd love to know the answer to those questions. Anyone?
sniffrumble1 month ago

Plus Earth has a truly unimaginable supply of water. It's everywhere. Even in a desert, using a solar still water can be wrung from thin air. (Probably not enough to power an engine but it IS there.)

instead of a vapor gasoline:air mixture and igniting, you would use the
gas instead of gasoline hence cars that run off of water

Could this gas actually run an engine?

Yes it can

How would it work?

instead of a vapor gasoline:air mixture and igniting, you would use the gas instead of gasoline hence cars that run off of water

Fastaco2262 months ago

How were you able to keep the gas in an open water bottle, without it escaping?

it would have come out eventually, he just used it quick enough before it have flowed out

hello, good item ,butt were did the video go. now that's unfair and sign up now usd$ 39.99 one time paypment , that if I pay this payment is the only one time/ of payment I will ever pay is right. p/s I would like to pay the one time payment of usd$39.99, butt im afraid to, just there mite be hiden charges by a unknowen third party. please return the video? not fair to any one. thankyou.

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sheepbars3 months ago

Water is made of 2 hydrogen atoms and one oxygen atom. Thus, it is known as H2O. When you apply an electric current, it splits it into 2 hydrogen atoms and 1 oxygen atom. This creates the gas you see.

This looks like a really awesome Instructable, I can't wait to make my own. My only problem is that I can't really obtain any potassium hydroxide, and I don't know where I could. Can anyone point me to another catalyst that works, or where to obtain potassium hydroxide? Thanks,

You can also use salt or baking powder but they can dirty the electrodes.
hnilsson3 months ago
The video is gone
oraddad3 months ago

cool

Hi im kinda noob in this, so i have to ask: When you put electricity into water, the hydrogen atom get extracted drom the water? (2 hydrogen atom) On school we used hydrochloric acid and zink dust.

Water is made of 2 hydrogen atoms and one oxygen atom. Thus, it is known as H2O. When you apply an electric current, it splits it into 2 hydrogen atoms and 1 oxygen atom. This creates the gas you see.

chubby89 months ago
apparently.... "Stainless steel contains chromium and thus the chromium is consumed, and you end up with poisonous chromates in your electrolyte. Dumping these on the ground or down the drain is illegal. The compounds can cause severe skin problems and ultimately, cancer. Hexavalent chromate is poisonous.
Does your electrolyte turn yellow? That's a sign of chromates.
Best bet - don't use stainless steel no matter how tempting it is."
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