Yesterday, my mechanic told me about platinum fuel injection, touting it as another fuel saver that “the government is keeping away from us”…
Well, I did a bit of reading, and this is what I came up with:
A site that sells this product: (incidentally the ones who used to carry the HHO technology)
http://www.hhotek.com/products_auto_platinum.php
Basically they (and my mechanic) claim that by introducing microscopic amounts of platinum into the combustion chamber, one can create a more complete burn that can be harnessed by the engine, instead of having it burn in the catalytic converter, releasing useless heat…
Sounds good in theory, right?
Not in this guy’s books:
http://www.fuelsaving.info/platinum.htm
In short, the main assumption made by the Platinum guys is that around 20% of fuel is released from the engine to the catalytic converter unburned, and the catalytic converter burns the rest…
But it does make more sense that if 20% of unburnt fuel was to be released into the catalytic converter, the resulting temperature change from the combustion of gasoline in said converter would melt the converter. The numbers provided were subjective however, so I tried to do a few calculations to find the temperature change by using the formula Q=MC^T (^T = change in temperature)… I found the specific heat capacity (C) of gasoline to be 2.22 KJ/Kg K (or 2.22 J/g K), and the energy released during the combustion of gasoline (Q) to be 2.24x10^4 J/gK… I’m not sure about the mass though (m), as I do not know how much gas is released into the engine in the first place (so that I can compare the temperature changes in 20% and 2% catalytic converter gas release), thus I cannot validate either person’s claims…
What are your thoughts? How efficient are our engines in terms of burning fuel? Would Platinum Fuel Injection provide any significant benefit to one’s fuel economy? If one wishes to complete my calculations, he or she would have to know how much gas is actually released into the combustion chamber… (or is there a better way to calculate the net temperature change when a certain amount of gasoline combusts)
I am emailing the guy on the first site, asking for the protocols that he used to run his test on the Acura Integra… perhaps I should email the second site asking for precise calculations on which he used to claim that:
“…if you turn off ignition to one cylinder of a V8 engine (so that 12% of the fuel is burnt in the catalyst) then the heat release is so great that the catalyst would be quickly destroyed when the engine is at full power. To suggest that 20% is burnt in the catalyst under normal conditions is just not true…”
In a way, I kinda wish that the mechanic was right about this… I honestly don’t want him to sound like an idiot, especially since he was the only one who offered to teach me how to adjust my valves and index my spark plugs (which is noted to increase fuel economy and horse power)…
But all this “the government is lying to us” stuff… well, they probably are, but they aren’t so omnipotent and powerful to develop, enact, and maintain such intricate schemes, solely on the basis of greed…
After all, its so much easier to criticize one’s solution, than it is to develop a solution in the first place…