nismotekk Wrote:Ok, I was thinking at work today(ouch:hmm Say you are traveling at 60mph, and your vehicle gets 20mpg. There is 3.78 liters in a gallon. So on average, your vehicle would be using .05 gallons per minute or mile, or .189 liters of fuel per minute or mile. So 1.5 lpm of hydrogen would seem to be alot, right? Now I know the equation goes alot farther than my simple math, so can anyone help me with this? does this make sense? I guess we have to calculate the energy difference in the two. Because with my math alone, it seems you could run the car off of it, which is not possible. And we all know that. Just a thought-chris

G'Day Chris

I don't actually have figure showing how much atomised petrol you get from 1 litre of Petrol but lets look at LPG. (Liquid petroleum Gas.

My Vehicle runs on dual fuel and get about the same mileage on petrol as it does on LPG.

1 litre of liquid butane liberates 239 litres of gas (15 Â°C - 1bar)

- 1 litre of liquid propane liberates 311 litres de gas (15 Â°C - 1bar)

To the best of my knowledge our local LPG is about 327 Litres of gas per litre of LPG

1 Imperial gallon = 4.54609188 litres

Now on a country trip I am using 15 litres per 100 Km if I am sitting on 100km/H then it Takes 60 minutes to use 15 Litres, so I am using .25 litres per Minute. .25 Litres of LPG = 81.75 Litres of Gas.

For the sake of the exercise lets call it 80 Litres per minute. NOW the car is running at 15.4 :1 which is suppose to be the stoichiometric point of LPG. (try as I may I am unable to lean it out)

Therefore 80 of Gas x 15.4 = 1232 + 80 = 1312

That is I am using 1213 Litres of Fuel in the car per minute.

now if my cell is producing 1 Litre per minute that is a TINY amount.

If we forget about the air and just concentrate on the Gas then I am still using 80 Litres a minute. and my cell is not actually producing one Litre of Hydrogen per minute, it is producing I litre of Hydrogen and Oxygen combined Therefore it is only producing 666.66 Mill of Hydrogen.

So a 1 litre per minute hydrogen cell is producing 0.8% of my fuel.

To be honest I am now running two cells in my vehicle and think I am getting about 500 mill per minute. Haven't actually measured it yet. If that is the case then I am only producing 0.4% of the fuel.

I fail to see how even 3 litres a minute would be enough to make a difference.

Doc