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View Full Version : Lotus Omnivore engine


subzali
03-17-2009, 10:25 AM
interesting...

http://www.evo.co.uk/news/evonews/234507/lotus_omnivore_at_geneva.html

corsair23
03-17-2009, 10:57 AM
That's pretty cool...I was watching something the other night on some planet channel or what not and they were showing the compressed air engine...Engine runs off compressed air and they were looking into ways for the engine, once running, to also be used to compress air so once started it would be perpetual.

Red_Chili
03-17-2009, 12:53 PM
That would, at best, lead to an output of... 0HP. But that is not taking losses into account. I could be missing something I suppose...

corsair23
03-17-2009, 01:26 PM
That would, at best, lead to an output of... 0HP. But that is not taking losses into account. I could be missing something I suppose...

Definitely future stuff I'm sure and probably overstating or over simplifying...Of course creating compressed air requires energy as well...

Found the part of the show talking about CAEs:

http://www.youtube.com/watch?v=ztFDqcu8oJ4&feature=related

Found this that talks about CAEs. In here they discuss the cars using an onboard gas powered (diesel, gas, biodiesel) generator to create more compressed air to fuel the engine.

http://auto.howstuffworks.com/air-car1.htm


Now, if they can create an CAE that has enough power to drag around an 80 at a relatively sane speed, pulling a popup camper to Moab, that would be the shiznit...Of course it would have to fit and cost less than $5K :)

subzali
03-17-2009, 01:53 PM
Compressing air, you lose a LOT of energy, and heat dissipated because of the compression P1*V1/T1=P2*V2/T2 IIRC, so if pressure goes up, temperature has to go up as well, and pretty much all that thermal energy is lost before you even release the pressure, which does the reverse of the above, so even more energy is lost. I haven't looked into it yet, but from what I remember from my engineering classes you'd end up using a LOT more energy than you can create.