EDIT Fixed my bad
Quote:
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Now I am treading into unfamiliar territory here but I had always been under the impression that Gas consumption is DIRECTLY proportional to RPM.
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You have one aspect of it.
1) engine size
2) rpm
3) manifold pressure in KPA
4) elevation pressure
5) atmospheric pressure
6) intake temperature
7) VE
8) A/F ratio
9) BSFC
I have the formula for this if you don't believe me.
All these factors will give the amount of time the injectors need to be open (Pulse Width) on an EFI engine.
Also I made a mistake, my car only uses .0335 lbs/min of gasoline at idle or 0.0006lbs/second.
Back to the question it only took a very small amount to run Jamies engine. So would propane.
The main thing I'm going to hold my ground on is every fuel has to be measured in BTU's. It takes x amount of BTU's to make x amount of HP. Hydrogen doesn't have a better quality of BTU's
I have tuned propane,ethanol, methanol, nitro,E85,E70,E100. They all have different weights per volume and different BTU content per weight.
But one thing they all share is it takes the same amount of BTU's to produce the same amount of HP or energy.
1 lb of Hydrogen has less BTU's then 1 gallon of gasoline. The problem is that 1 lb of Hydrogen needs a 9" by 56" 47lb heavy tank 2 close to 3000psi to store it in to keep it from phase changing.
A pound of Hydrogen contains around 61,000 BTU of latent energy in it, which seems like a lot! For comparison, a pound of regular gasoline only contains around 20,500 BTU or a 123,000 BTU a gallon in it! Sounds good!
However, a pound of gaseous Hydrogen is HUGE! At standard atmospheric pressure and temperature, it takes up around 190 cubic feet of space. In contrast, that pound of gasoline only takes up about 1/45 of a cubic foot. Hydrogen gas takes up around 9,000 times the space that the same weight of gasoline does!