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Running a car off HHO

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Chip Fixes

Mon Jun 06 2011, 04:06AM

Registered Member #3781 Joined: Sat Mar 26 2011, 02:25AM
Location:
Posts: 701

Instructable --->

Is it worth the effort? and does it make a difference?
A lot of people said that it has no effect on MPG

I would love to get more than 25 mpg in my little Plymouth.

If this is just a scam then does anyone know of any (preferably free!) modifications to increase fuel economy?

Adam Munich

Mon Jun 06 2011, 04:47AM

Registered Member #2893 Joined: Tue Jun 01 2010, 09:25PM
Location: Cali-forn. i. a.
Posts: 2242

By shorting out your car battery through some water and forcing your engine to turn the alternator harder you get better fuel economy?

Yeah... okay.

Ash Small

Mon Jun 06 2011, 04:48AM

Registered Member #3414 Joined: Sun Nov 14 2010, 05:05PM
Location: UK
Posts: 4245

He's got some of his facts wrong. eg you don't get chlorine from baking soda (sodium bi-carbonate)

The best he got before the mod was 45 mpg, he gets 39 mpg with it.

It uses electricity to make the hydrogen and oxygen. This is produced by the alternator and uses energy to produce it.

If you ran the electrolysis off a wind generator, and used the generator to pressurise the hydrogen and stored it in a tank you could run your car for free! (after you buy the wind generator, pump and tanks, but they'd take up all the room in the boot/trunk if you wanted to go far)

(just my two cent's worth)

Bjørn

Mon Jun 06 2011, 07:20AM

Registered Member #27 Joined: Fri Feb 03 2006, 02:20AM
Location: Hyperborea
Posts: 2058

Forget about that, you will just end up poorer and feeling stupid. In the case of compressing significant amounts of oxygen and hydrogen, you will end up dead as well.

The good thing is that you can safe fuel for free. Some drivers use more than 30% extra fuel just by the way they drive. Make sure you always have the correct pressure in your tires to reduce rolling resistance. Get rid of any junk you keep in your car to save weight. If you have anything mounted on your car that disturb the flow of air, remove it. Think ahead and coast to a stop instead of hitting the brakes at the last moment. Plan your trip, plan your parking, plan everything so you travel as smoothly as possible with the least amount of starting and stopping.

If you do it well you should save at least 10% of the fuel, which is many times more than any miracle device will get you.

Conundrum

Mon Jun 06 2011, 07:22AM

Registered Member #96 Joined: Thu Feb 09 2006, 05:37PM
Location: CI, Earth
Posts: 4061

I expect that it would be more efficient to put some >20% efficient solar panels on the roof and use the energy generated to make hydrogen.

I did recall somewhere that acetylene (C2H2) dissolves in acetone which provides a convenient storage under relatively low pressure if firebrick etc is used as the inert carrier matrix.

Consulting the almighty Oracle of Wikipedia:-
"Berthelot later obtained acetylene directly by passing hydrogen between the poles of a carbon arc.[3]"

BTW **DO NOT** Google "store hydrogen in acetone" .... Nuff said.

-A

Ash Small

Mon Jun 06 2011, 09:26AM

Registered Member #3414 Joined: Sun Nov 14 2010, 05:05PM
Location: UK
Posts: 4245

BjÃ¸rn wrote ...

. In the case of compressing significant amounts of oxygen and hydrogen, you will end up dead as well.

.

I actually meant 'just compress the hydrogen'. Maybe I should have made that clearer. I didn't mention oxygen.

You'd need to separate the electrodes and collect the gasses separately, though.

I won't go into detail, but hydrogen only burns/explodes in the presence of an oxidant.

I still wouldn't recommend trying it though.

BTW,Rolls Royce are running a fleet of BMW's on compressed hydrogen though. There's a joint venture between Rolls Royce, Alstom Power and BMW developing fuel cell technology.

I worked on installation of the third fuel cell research unit at Rolls Royce in 2007.

Most of the fuel cell is constructed of 316 stainless steel, but the bit inside that operates at elevated temperatures (alledgedly) is manufactured from 321. (apparently due to expansion co-efficients - I think it has better 'creep' properties, though.)

magnet18

Mon Jun 06 2011, 10:41AM

Registered Member #3766 Joined: Sun Mar 20 2011, 05:39AM
Location:

Posts: 624

Don't bother, it's an old overunity scam thats been going on for ages.
Think about it, by breaking water down and then burning the resulting gases and getting water again you end up with energy?
Don't think so.

Electra

Mon Jun 06 2011, 11:53PM

Registered Member #816 Joined: Sun Jun 03 2007, 07:29PM
Location:
Posts: 156

Raising the tire pressures above the standard for your model of car will reduce the tyre/road resistance still further, at the expense of a slightly rougher ride. Be warned though the reduced tyre contact area will slightly reduce the tires grip also, and typically can result in the centre section of the tread wearing more than the rest. So do this at your own risk, being on low income Iâ€™ve done this for several years.

Going back to your original point, I canâ€™t see what a deference such a small amount of hydrogen would make anyway compared to what an engine would need to run on.

Yes roll on the day when there are practical electric / fuel cell cars that anyone can afford to buy.

Chip Fixes

Tue Jun 07 2011, 02:17AM

Registered Member #3781 Joined: Sat Mar 26 2011, 02:25AM
Location:
Posts: 701

Alright, thanks for the responses and tips, I have found that putting the car in neutral a lot has helped as well

magnet18

Tue Jun 07 2011, 02:38AM

Registered Member #3766 Joined: Sun Mar 20 2011, 05:39AM
Location:

Posts: 624

If you have a stick know that the higher the gear your in the lower the RPM's and the lass gas burned.

Of course, flooring it all the time doesn't help mileage either...
But it's so much less fun

Also, from a physics standpoint, friction is irrelevant of surface area.
Less area means more force on the applied area, things equal out.

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