DIY Hydrogen additive...?

[Dogman]

Anybody here ever tried any of these so called hydrogen mod's?
I have always been curious.

How Hydrogen Fuel Cell Cars Can Give You the Gas Mileage Improvements You Have Been Looking for Part 1

[oil pan 4]

They are 100% unadulterated BS.
Don't waste your time.
But if you insist be sure to post your results to save others the time, money and headache.

Just think, if it these actually worked then why aren't they on every vehicle sold?

[Dogman]

Originally Posted by oil pan 4

They are 100% unadulterated BS.
Don't waste your time.
But if you insist be sure to post your results to save others the time, money and headache.

Just think, if it these actually worked then why aren't they on every vehicle sold?

oh I won't be trying it anytime soon LOL. I don't want to be the guinea pig.

[teoman]

Search the site, some one posted NASA’s results. Adding hydrogen increased mpg by a tiny tiny amount. If I recall correctly that tiny tiny amount was a tiny bit better than the energy content of gasoline + hydrogen. (0.02% pops to mind but i could be wrong).

Soo, you can lug a tank of hydrogen with you and basically use it as a very expensive fuel supplement i.e. burn it with the fuel. Or you can choose to be very ignorant, think that the car’s alternator provides free energy, and try to make some hydrogen from that. In reality the alternator puts a load on the motor making it burn more fuel, about %10 efficiency. Then you make hydrogen with that energy and lose a fair bit there aswell.

So basically you burn 100 units of gasoline to get 1 unit of hydrogen (energy wise).

But hey, if you believe, anything is possible.

[cRiPpLe_rOoStEr]

Originally Posted by teoman

Soo, you can lug a tank of hydrogen with you and basically use it as a very expensive fuel supplement i.e. burn it with the fuel.

Surprisingly, if the ambient air is somewhat dry, water injection may lead to a more effective mileage increase than those hydrogen setups.

Or you can choose to be very ignorant, think that the car’s alternator provides free energy, and try to make some hydrogen from that. In reality the alternator puts a load on the motor making it burn more fuel, about %10 efficiency. Then you make hydrogen with that energy and lose a fair bit there aswell.

Plus the energy balance is unfavorable, since the combustion of the hydrogen generates a lower output than the power required to break down the water molecules on those HHO devices.

[samwichse]

Unicorn corral, here we come.

[RustyLugNut]

Originally Posted by samwichse

Unicorn corral, here we come.

I have argued it on other threads if you are willing to look it up. No, these electrolysis in a jar running from your alternator are not going to do anything practically positive, but judicious use of the output gas in extending the lean limit in a lean burn engine is very doable.

But it is not as simple as the video portrays. You will need to be able to control your fuel and ignition timing. You will need to have an efficient electrolysis device that is controlled to produce your gas as needed. You will be able to only use this tune in lightly loaded regimes. Your emissions will change. On and on.

There is basis, just not a practical basis most Ecomodders can use.

This is for spark ignited gasoline powered engines.

Diesel engines are another story altogether.

[RustyLugNut]

Originally Posted by cRiPpLe_rOoStEr

Plus the energy balance is unfavorable, since the combustion of the hydrogen generates a lower output than the power required to break down the water molecules on those HHO devices.

If you can produce the HHO gas and use it to recover enough wasted energy from the engine, you can come out ahead, if the energy expended is less than the energy gained from the combustion waste.

We already know we have pumping losses from running an engine throttled. We already know we have pumping losses when we ignite the fuel mixture well before top dead center. We already know that lean combustion becomes erratic past 22:1 AFR. What if we could do something similar to what pfgPro has done with his Talon without the turbocharger? HHO can allow you to do this.

[RustyLugNut]

Originally Posted by Dogman

oh I won't be trying it anytime soon LOL. I don't want to be the guinea pig.

Look up previous posts. It is an intriguing topic.

[cRiPpLe_rOoStEr]

Originally Posted by RustyLugNut

If you can produce the HHO gas and use it to recover enough wasted energy from the engine, you can come out ahead, if the energy expended is less than the energy gained from the combustion waste.

Energy can be retained or transformed, not created. And there is some energy dissipation throughout the electrolysis process. You know, for example, a voltaic arc is quite hot, which means it's converting a part of the electric energy into thermal energy that is harder to recover. So, in the end there will be some waste of energy throughout the whole process.