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Old 03-12-2009, 06:14 PM   #21 (permalink)
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IC engines still have the highest potential Carnot efficiency - big diesels are getting over 50% now, and still wasting enough heat for a bulky Stirling or the new refrigerant turbine.


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Old 03-12-2009, 06:30 PM   #22 (permalink)
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What about inject water into the exhaust and then use the mixture of steam and exhaust gases to spin a turbine? For even better efficiency, the water can be preheated by running it through a heat exchanger from the coolant.
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If America manages to eliminate obesity, we would save as much fuel as if every American were to stop driving for three days every year. To be slender like Tiffany Yep is to be a real hypermiler...

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Old 03-12-2009, 09:28 PM   #23 (permalink)
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NiHaoMike: have you seen BMW's Turbosteamer - Wikipedia, the free encyclopedia ?
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Old 03-12-2009, 10:20 PM   #24 (permalink)
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Except my idea does not require a condenser that would degrade aerodynamics.
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If America manages to eliminate obesity, we would save as much fuel as if every American were to stop driving for three days every year. To be slender like Tiffany Yep is to be a real hypermiler...

Allie Moore and I have a combined carbon footprint much smaller than that of one average American...
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Old 03-13-2009, 02:13 AM   #25 (permalink)
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Quote:
Originally Posted by JohnnyGrey View Post
Do you guys have any idea how weak TEG currents are? This is about as practical as replacing your car battery with a potato.
Hmm, potatoes, maybe there's potential here! Not just one potato though. I see a bank of potatoes, a Prius battery pack with the batteries replaced by potatoes.
Or lemons...


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