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22 May 2008, 18:26 (Ref:2209242)
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Rookie
Join Date: May 2007
Posts: 47
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Most efficient vehicle
an interesting article on the most efficient vehicle on the planet
http://sports.espn.go.com/espnmag/story?id=3397546 |
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22 May 2008, 18:32 (Ref:2209247)
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#2 | ||
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14th
1% Club
Join Date: Jul 2001
Posts: 42,582
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A cool vehicle, however I debate the term effeciency. Firstly it isn't defined. However in terms of energy source I am not sure it is that effecient. Ultimately the energy require to propel the vehicle comes from the food the man eats. This sounds very ineffecient to me; and that is ignoring the energy required to make the man in the first place.
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__________________
Seriously not taking motorsport too seriously.
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22 May 2008, 21:03 (Ref:2209350)
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#3 | ||
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Rookie
Join Date: May 2007
Posts: 47
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watts used
efficiency is a measure of work verse distance?
the charts for power consumed to move the vehicle used to reside on his web page (as recorded by SRM force measuring cranks) to peak at 81 mph takes 650 watts of power ( = .87 HP) to travel 53 miles in one hour requires 275 watts average ( = .37 HP) regardless of where the power comes from the thing goes a looong way on little energy |
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23 May 2008, 00:28 (Ref:2209452)
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#4 | ||
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Veteran
Join Date: Jul 2007
Posts: 1,638
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I want to have a ride of this 'bent!!!
There, I've said it. I saw it in PopMech a couple of years ago, when I was more into racing trikes like this. I actually have a poster/big photo of this in motion. I love it. Mick |
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__________________
Supercars isn't the sport. The sport is motor racing.
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31 May 2008, 05:04 (Ref:2215708)
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#5 | ||
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Veteran
Join Date: Jun 2007
Posts: 1,723
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Surely the amount of energy consumed in moving the vehicle from 0 to 81mph should be measured in units of consumed energy (joules)?
Can't think ok any method of recovering the energy back to 0 though, so KERS does not apply. Should the energy requirement of an MPV be measured in joules, calories or hamburgers? |
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__________________
Geting old is mandatory, acting old is optional.
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31 May 2008, 12:45 (Ref:2215896)
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#6 | |||
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Racer
Join Date: Dec 2002
Posts: 338
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Quote:
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__________________
Think drifting is tough. Try it on gravel, in the dark, amonst trees...............
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1 Jun 2008, 17:15 (Ref:2216913)
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#7 | |||
 Race OfficialVeteran
Join Date: May 2004
Posts: 2,479
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Quote:
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1 Jun 2008, 17:28 (Ref:2216933)
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#8 | ||
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14th
1% Club
Join Date: Jul 2001
Posts: 42,582
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he he!
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__________________
Seriously not taking motorsport too seriously.
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