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#1
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Compressed Air powered, zero emission cars - for $6.5K each
This is a 7 & 1/2 minute CNN (Europe) report of a zero emission, air
powered car - designed to sell for 6.5K... http://youtube.com/watch?v=-iXrM02g_yc |
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#2
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Compressed Air powered, zero emission cars - for $6.5K each
RH wrote: > This is a 7 & 1/2 minute CNN (Europe) report of a zero emission, air > powered car - designed to sell for 6.5K... > > http://youtube.com/watch?v=-iXrM02g_yc Don't forget these: http://www.youtube.com/watch?v=D-A3XHFT5qc http://www.youtube.com/watch?v=Dq8aZVLpf-c -phaeton |
#3
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Compressed Air powered, zero emission cars - for $6.5K each
"phaeton" > wrote in message ps.com... > > RH wrote: >> This is a 7 & 1/2 minute CNN (Europe) report of a zero >> emission, air powered car - designed to sell for 6.5K... >> >> http://youtube.com/watch?v=-iXrM02g_yc > > Don't forget these: > > http://www.youtube.com/watch?v=D-A3XHFT5qc > http://www.youtube.com/watch?v=Dq8aZVLpf-c More efficient than charging lead-acid batteries, but only 58% thermally efficient on charging. That power comes from some other source. David A. Smith |
#4
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Compressed Air powered, zero emission cars - for $6.5K each
RH wrote:
> This is a 7 & 1/2 minute CNN (Europe) report of a zero emission, air > powered car - designed to sell for 6.5K... > > http://youtube.com/watch?v=-iXrM02g_yc Wow, a 2004 CNN video clip where they claim it'll be on sale by the end of the year. My calendar says it's getting on towards the end of 2006. Where can I buy one? Anthony |
#5
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Compressed Air powered, zero emission cars - for $6.5K each
RH wrote: > This is a 7 & 1/2 minute CNN (Europe) report of a zero emission, air > powered car - designed to sell for 6.5K... > > http://youtube.com/watch?v=-iXrM02g_yc Not again....these "cars" seem to pop up every 6 months on this forum. Even if this vaporware becomes a reality what the sellers conveniently leave out of the equation is that the compressed air is really just another form of energy that has been transferred from elsewhere. And the elsewhere is ultimately a coal fired power plant. |
#6
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Compressed Air powered, zero emission cars - for $6.5K each
John S. wrote:
.... > Not again....these "cars" seem to pop up every 6 months on this forum. > Even if this vaporware becomes a reality what the sellers conveniently > leave out of the equation is that the compressed air is really just > another form of energy that has been transferred from elsewhere. And > the elsewhere is ultimately a coal fired power plant. In this sense, the idea isn't any worse than electric or hydrogen cars. The energy for all these technologies have to come from somewhere else. The advertising from MDI suggested that air tanks could be a cheaper and longer lasting form of energy storage than batteries. Clearly this advertising is misleading (or even downright fraudulent) since they have not built a single prototype that lives up to the hype in over 12 years. The last I heard (from Wired) was that their prototype was limited to a range of around 5 miles. Enough for a quick spin around the block to wow a reporter but not enough to actually go anywhere. Anthony |
#7
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Compressed Air powered, zero emission cars - for $6.5K each
Anthony Matonak wrote: > John S. wrote: > ... > > Not again....these "cars" seem to pop up every 6 months on this forum. > > Even if this vaporware becomes a reality what the sellers conveniently > > leave out of the equation is that the compressed air is really just > > another form of energy that has been transferred from elsewhere. And > > the elsewhere is ultimately a coal fired power plant. > > In this sense, the idea isn't any worse than electric or hydrogen cars. > The energy for all these technologies have to come from somewhere else. > > The advertising from MDI suggested that air tanks could be a cheaper > and longer lasting form of energy storage than batteries. Clearly > this advertising is misleading (or even downright fraudulent) since > they have not built a single prototype that lives up to the hype in > over 12 years. > > The last I heard (from Wired) was that their prototype was limited > to a range of around 5 miles. Enough for a quick spin around the block > to wow a reporter but not enough to actually go anywhere. It's a techological dead-end. Graham |
#8
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Compressed Air powered, zero emission cars - for $6.5K each
This site has a table of energy density by weight and volume and
compressed air is worse than batteries. (Hint... most air compressors I've seen are big noisy 220V several HP contraptions and they huff and puff and finally shut off at a whopping 150 psi.) http://xtronics.com/reference/energy_density.htm |
#9
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Compressed Air powered, zero emission cars - for $6.5K each
Anthony Matonak wrote: > John S. wrote: > ... > > Not again....these "cars" seem to pop up every 6 months on this forum. > > Even if this vaporware becomes a reality what the sellers conveniently > > leave out of the equation is that the compressed air is really just > > another form of energy that has been transferred from elsewhere. And > > the elsewhere is ultimately a coal fired power plant. > > In this sense, the idea isn't any worse than electric or hydrogen cars. > The energy for all these technologies have to come from somewhere else. Yes, but the True Believers supporting the latest fuel technology find it easy to ignore the hidden costs. > > The advertising from MDI suggested that air tanks could be a cheaper > and longer lasting form of energy storage than batteries. Clearly > this advertising is misleading (or even downright fraudulent) since > they have not built a single prototype that lives up to the hype in > over 12 years. > > The last I heard (from Wired) was that their prototype was limited > to a range of around 5 miles. Enough for a quick spin around the block > to wow a reporter but not enough to actually go anywhere. Gasoline and other fuels are far more effective than air when it comes to ease of transport and storage of energy. I'm trying to imagine the number of compressed air tanks on trailers that would be required to make a 400 mile trip. > > Anthony |
#10
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Compressed Air powered, zero emission cars - for $6.5K each
"Anthony Matonak" > wrote >... the idea isn't any worse than electric or hydrogen cars. > The energy for all these technologies have to come from somewhere else. Yes it is worse, much worse. The overall efficiency is far lower, for a variety of reasons, chief of which is the pathetic energy density which forces the vehicle to waste a huge percentage of its limited energy carrying heavy air tanks. Compressed air works in certain situations, mainly in confined spaces like mines, tunnels etc, where you need to avoid sparks and toxic emissions and where the introduction of fresh air is beneficial. Otherwise it is just a waste of energy. |
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