Posted by mattofvinings on December 08, 2008 at 15:46:26 from (67.142.161.28):
In Reply to: Tractor pullers posted by teddy52food on December 08, 2008 at 07:12:25:
The smoke has to do with the diesel combustion process. Diesel combustion is diffusion burning, where the challenge is to burn to the center of a fuel droplet...however when this can't be done, a black soot particle is left over and exhausted. The smaller the droplet, the more likely that the fuel droplet will be consumed. Smaller droplets are related to higher injection pressures and better atomization which is why we have 650 ft-lb x 300 hp duallies running around within the last few years.
Pure oxygen or NO would both theoretically work. The heat of combustion causes N and O to separate which acts like a turbocharger with a "denser" atmosphere, or more burnable air-fuel mix in the chamber.
However, as has been suggested the practical limitation is that where the piston will melt down. It is possible to "cool with fuel" to compensate, but such a strategy has to be carefully developed by people with expensive measurement technologies on dynamometer cells. One can of course pursue their own path of internal combustion engine development but the costs measured in broken hardware can add up quickly.
I think you'd be amazed at how fast the oxygen bottle would be consumed...gas bottles are measured in cubic feet and engines in cubic feet *per minute*...as suggested a turbo is ultimately a lower cost solution.
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