Forum: Electric and Solar powered
08-06-2006, 11:44 PM
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Replies: 52
Views: 8,589
Well, I've seen two numbers for wh/km, 110 and...
Well, I've seen two numbers for wh/km, 110 and 125. 110 yields .49m^2, and 125 .57m^2, both of which are a bit more reasonable. The 110wh/km comes from the tesla white papers, and the 125wh/km is...
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Forum: Electric and Solar powered
08-06-2006, 01:48 PM
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Replies: 52
Views: 8,589
If it does have a ~.41 CdA, then the...
If it does have a ~.41 CdA, then the instantaneous force on the car at 48.3mph is .5(1.2kg/m^3)(21.5m/s)(21.5m/s)(.41)+1225kg(m/s^2)(.012)=129N, or 129N(21.5m/s)=2.774kw, so it should use 2.774kwhr...
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Forum: Electric and Solar powered
08-06-2006, 06:21 AM
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Replies: 52
Views: 8,589
Ah, yup. Gotta have the AC, and radio, and...
Ah, yup. Gotta have the AC, and radio, and lights, etc... 700 miles in LA traffic would suck. But it should absolutely own any other vehicle in it's price range. And if you can hit it at 50mph w/o...
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Forum: Electric and Solar powered
08-06-2006, 04:41 AM
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Replies: 52
Views: 8,589
Assuming a CdA=~.41-.42, the roadster will...
Assuming a CdA=~.41-.42, the roadster will consume ~2.806kwhr at ~48mph. For some reason they didn't use that and fudged the highway mpg conversion, instead of ~135mpg it should be 265mpg equivalent...
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Forum: Electric and Solar powered
08-06-2006, 04:03 AM
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Replies: 52
Views: 8,589
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Forum: Electric and Solar powered
07-31-2006, 11:51 AM
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Replies: 52
Views: 8,589
The car weighs ~1123N and has a mass of...
The car weighs ~1123N and has a mass of 1123N/9.8m/s^2=115kg. To move it to 48mph~21.5m/s requires .5(115kg)21.5m/s(21.5m/s)=26579kg(m^2/s^2) or ~26500J. Now assuming we capture ~30% of the energy...
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Forum: Electric and Solar powered
07-28-2006, 11:30 AM
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Replies: 52
Views: 8,589
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Forum: Electric and Solar powered
07-28-2006, 09:40 AM
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Replies: 52
Views: 8,589
That's something I was thinking about... Range...
That's something I was thinking about... Range shouldn't drop because of the combined cycle... It should actually increase. Take a diesel and a hybrid, the diesel gets about the same mileage in city...
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Forum: Electric and Solar powered
07-28-2006, 08:11 AM
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Replies: 52
Views: 8,589
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Forum: Electric and Solar powered
07-27-2006, 10:25 PM
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Replies: 52
Views: 8,589
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Forum: Electric and Solar powered
07-27-2006, 08:09 PM
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Replies: 52
Views: 8,589
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Forum: Electric and Solar powered
07-27-2006, 02:26 PM
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Replies: 52
Views: 8,589
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