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Why not have the exhaust pipe on the roof at the rear. Exhaust fumes will efficiently rise up into the sky from a higher level, thus saving pedestrians the misfortune of breathing them in.
Of course the ideallistic solution would be to make all buses run on electricity, but this idea allows existing
buses to be modified at a low cost.
Roofline Exhaust on a Bus
http://www.ngv.org/...BlueBirdXcel102.htm
Baked [jhomrighaus, Aug 07 2006]
[link]
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The problem being that many products of automobile combustion are heavier than air, so they'll still just sink right back down once they cool off. |
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Only in native american settlements. |
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I saw a European bus with this very feature on TV last night. It was in a BabyBel cheese advert currently showing on uk tv. |
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Move to Seattle. All the metro transit buses already have roofline exhausts. As a bonus, when they're actually in the city, they extend a set of contacts to overhead powerlines and run on electricity. |
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Hmmm. Then it is clearly baked <at least twice>, Back to the drawing board... |
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by 2010, all new diesel engines sold in america will exhasust air chemically cleaner than the ambient air of most urban environments. if not the EPA squad will bust in your door in the middle of the night an fine you!! this idea is a good one, and may have been practical a few years ago when dielsels were dirty as hell, but now they are extreemly clean (at the cost of some fuel efficiency). i know this to be fact because i work on the EGR systems on diesel engines where i work. |
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trucks sometimes have roof level exhausts, e.g. optimus prime |
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Many City busses are configured this way, see link for one. Baked. |
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