Quote:
Originally Posted by some_other_dave
Umm, how do you propose to remove all nitrogen from the air going into the engine? N2 is roughly 70% of what goes into the engine to start with. Even after adding hydrocarbons and then combusting them, you'll still have around 70% of it is nitrogen of one form or another, mostly N2.
Just routing exhaust gas (cooled or not) into the intake won't substantially change the amount of N2 going through the system, since you'll be displacing 70% N2 air with 70% N2 exhaust.
If you could eliminate NOx, that would enable lean mixtures for good fuel economy. But it's hard to see how this would accomplish it.
-soD
|
It is possible to separate polar/magnetic/charged substances in air from non polar ones with a charged stack of sorts. (Albeit not 100% effective)
One would need to question if the power draw to divide CO, CO2 and NOx (along with reactive compounds and h2o from the remaining exhaust would be excessive, ignoring the obvious cost and weight of equipment and potential to clog it with soot. The “polar” compounds could then be reintroduced to the intake stream.
Without a way to separate CO2 from the rest you would choke out the engine
Being polar and charged there may be a means to separate the NOx from uncharged materials like CO2, would have to think about it, NOx should be attracted more to a HV charged plate than CO2, not sure how that could be leveraged effectively.