Quote:
Originally Posted by Kevin Johnson
Don't be so quick to judge. Errr.... looking this up on Google took me about 30 seconds. You just have to scan information/hits quickly and look for indices of serious research.
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I spent a couple of evenings doing this once. You will find none. What you
will find is the same 2(?) studies, and the same rehash repeated endlessly. Track down the two studies and only one is relevant, and not terribly well done science, if I recall.
Basically, all these places are feeding off each other's plagiarism of the rehash that someone did of some flawed studies that found a benefit. Reminds me of my philosophy of religion course back in college
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I did further searching.. and found two studies done by reputable scientists from reputable organizations. Both were for pure H2 gas introduction, one on a gasoline engine, the other on a diesel. Both showed an increase in thermodynamic efficiency above diesel or gas alone. Neither added the load of generating the H2 gas onboard (they both used bottled H2 gas). The efficiency was up, but still
less than a 10% gain, and, in the gas vehicle engine, power was down (so the car was less responsive when driven and couldn't go as fast). Amusingly, in the diesel, they found the limiting factor for the gains to be the replacement of atmospheric O2 in the intake charge (ie. the gains topped out when they started to starve the engine for Oxygen by substituting too much Hydrogen gas for air in the intake).
However, that's all for H2 gas, not H2 and O2 gasses combined in the stoichiometric mix. YMMV
If I had the time, I'd do the experiment with one of these systems just so we can prove once and for all that they really don't provide any benefit (or.. heck, maybe they'll suprise us and they do provide a measurable benefit). The $100 isn't the limit for me, its the time. If anyone wantes to work with me on this this summer, let me know.