h a l f b a k e r yFlaky rehab
add, search, annotate, link, view, overview, recent, by name, best, random
news, help, about, links, report a problem
browse anonymously,
or get an account
and write.
register,
|
|
|
youtbue has videos of people using compressed air to power bicycles.
a new compressed air car has just made headlines.
how about a scooter, where the body of the scooter also doubles as a hollow carbon fibre tank to save weight. the compressor is built into the bike too, and a specially designed
motor integrates the outlet of the tank directly to the back wheel in hub motor.
if you wanted to...you could even integrate a human hybrid design so that the scooter could also be pedalled.
all tolda i bet you could build something like this out of carbon fibre with suspension + compressor + the weight of the air at under 100 pounds.
i'd say you'd need at least 200 cu' feet of air at 4500 to give the scooter a reasonable range.
Zeev
Air-powered scooter at MakeZine.com
http://blog.makezin...MP=OTC-0D6B48984890
[phoenix, Apr 17 2008]
Air-powered engines at HackedGadgets.com
http://hackedgadget...ir-powered-engines/
[phoenix, Apr 17 2008]
[link]
|
| |
You could use it as a scuba tank. |
|
| |
No harm in mounting the air tank on the bike, but I'd worry about making the bike frame itself the air tank. A frame full of compressed air would be quite a liability in an accident, with the pressure likely to explode the frame. |
|
| |
There's a _pneumatic scoot_ idea up there in the upper right list of scooter ideas. It had the same problems as this one: on-board compressor and motor, et c. If you get air somewhere else, an air-powered scoot is a good idea, as long as your source is sensible. If you compress air as you go, it's just stupid. |
|
| |
A slightly-related question for the air-heads (and I mean that in the best way) here: Does transferring already-compressed air into an empty tank involve any losses besides turbulence? |
|
| |
I've seen an insulated air tank linked from the 'Bakery. The fellow claimed that losing heat from the work done in the compressing of air was a bad thing. I agree, but only upon initial compression--capture the heat if you can, sure. |
|
| |
But if the feed tank is full, and has been stored at room temperature, the air that goes into the receiver tank expands (but does no work), then gets squished again as the tank fills. |
|
| |
It winds up with less air in the feed tank, so entropy has increased, but are the losses worth mentioning? What is the cost of letting some air flow from a big storage tank into another, smaller, transport tank? (I may have answered my own question there--let me mull a bit.) |
|
| |