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Kerry Phillips · 07-04-2009, 03:23 PM

[quote=Jackstand Queen;365408]DO The MATH!
On each revolution two cylinders are firing. So divide the RPM by 2 and you get 1750 compression/firing strokes per minute TIMES .8 liter (@.4 liter per cylinder). Now multiply the 1750 times the volume of two cylinders (.8 liter)and you get 1400 liters of air being pumped into the motor each minute.

Here is the flaw

Okay you have overlooked the volumetric efficiency. Your math assumes that the cylinder will fill to 100% its capacity. Remember the THROTTLE acts as a restrictor, in simple terms, half throttle, cylinder is half full.

In addition to the throttle, the RPM effect volumetric efficiency, as well as the TVIS system.

At cruising speed, the engine only needs to produce about 20 horsepower!

Now about producing Hydrogen, the covalent bond between the H and O is so strong, that it takes more energy to separate them then what burning hydrogen produces. I also agree with your concept, introducing a very SMALL percentage of hydrogen is NOt going have a BIG effect.

Another fact overlooked.... Air is a mixture of different gasses, but mostly 21% oxygen which supports combustion and 78% of inert nitrogen. By introducing hydrogen, you are reducing the percentage of Oxygen!!!!

I suspect that if MPG increases are for real it is because of two reasons, 1 by reducing the Oxygen % you are de-tuning your engine for less power and or because your engine is operating more efficient due to much higher exhaust emissions.

07-04-2009, 03:23 PM	#101 (permalink)
Kerry Phillips Some Skills Join Date: May 2006 Posts: 88 Thanks: 0 Thanked 7 Times in 7 Posts iTrader Rating: (0/0% )	Flaw, but not your basic arithmetic [quote=Jackstand Queen;365408]DO The MATH! On each revolution two cylinders are firing. So divide the RPM by 2 and you get 1750 compression/firing strokes per minute TIMES .8 liter (@.4 liter per cylinder). Now multiply the 1750 times the volume of two cylinders (.8 liter)and you get 1400 liters of air being pumped into the motor each minute. Here is the flaw Okay you have overlooked the volumetric efficiency. Your math assumes that the cylinder will fill to 100% its capacity. Remember the THROTTLE acts as a restrictor, in simple terms, half throttle, cylinder is half full. In addition to the throttle, the RPM effect volumetric efficiency, as well as the TVIS system. At cruising speed, the engine only needs to produce about 20 horsepower! Now about producing Hydrogen, the covalent bond between the H and O is so strong, that it takes more energy to separate them then what burning hydrogen produces. I also agree with your concept, introducing a very SMALL percentage of hydrogen is NOt going have a BIG effect. Another fact overlooked.... Air is a mixture of different gasses, but mostly 21% oxygen which supports combustion and 78% of inert nitrogen. By introducing hydrogen, you are reducing the percentage of Oxygen!!!! I suspect that if MPG increases are for real it is because of two reasons, 1 by reducing the Oxygen % you are de-tuning your engine for less power and or because your engine is operating more efficient due to much higher exhaust emissions.