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Topic: Electric bikes are so 2011. Let's go for compressed air!  (Read 1298 times)
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« Reply #20 on: January 11, 2012, 07:00:23 PM »
Solar power? battery backup? lightweight gearing? Maybe all togetherto power a small compressor? I would think a scuba tank could be filled to 200 psi in the fifteen minute allowance of the primary tank thus filling a secondary tank? At the very least it stirs the imagination.
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« Reply #20 on: January 11, 2012, 07:00:23 PM »
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« Reply #21 on: January 11, 2012, 07:11:54 PM »
So how much energy did it take to fill the original scuba tank to 5800 psi? How much of that energy is recoverable?
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« Reply #22 on: January 12, 2012, 05:52:34 AM »
Like electric powered vehicles, this technology is in it's infancy. Look how far the electric stuff has come in a few years. Gas engines of the 1900's were inefficient, heavy, low powered, and had a short life span. This air power is basically a first, rough draft. If it gains interest (I'm sure it will) you can bet others will get on the development train. With the materials available today, I'm sure lighter, larger, and stronger tanks could be made, the motor could be made more efficient, and some sort of regenerative braking could be designed.
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« Reply #23 on: January 12, 2012, 06:15:30 AM »
Quote from: Kneescrubber on January 11, 2012, 07:11:54 PM

So how much energy did it take to fill the original scuba tank to 5800 psi? How much of that energy is recoverable?


We don't care about that.  Remember, it only needs to be marketed as eco-friendly so people feel good about themselves.

Nobody thinks about where all the electricity comes from for these electric cars (coal), or the wars being fought for the resources for the batteries.
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« Reply #24 on: January 12, 2012, 07:58:03 AM »
Quote from: Cablebandit on January 12, 2012, 06:15:30 AM



We don't care about that.  Remember, it only needs to be marketed as eco-friendly so people feel good about themselves.

Nobody thinks about where all the electricity comes from for these electric cars (coal), or the wars being fought for the resources for the batteries.


Can you elaborate on the lithium wars? New one on me...

Most lithium comes from Chile and we have our own in Nevada. I haven't heard of any military campaigns called "Chile Freedom."

And by the way - when using coal to power electric cars, the pollutants are less than with a gas car of the same weight. On top of that only about 40% of our electricity comes from coal (nationwide).
« Last Edit: January 12, 2012, 08:08:55 AM by axelwik » Logged
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« Reply #25 on: January 12, 2012, 08:03:24 AM »
Quote from: axelwik on January 12, 2012, 07:58:03 AM



Can you elaborate on the lithium wars? New one on me...


Star Wars, Episode 8: The Lithium Wars.  

Quote from: Cablebandit on January 12, 2012, 06:15:30 AM



We don't care about that.  Remember, it only needs to be marketed as eco-friendly so people feel good about themselves.

Nobody thinks about where all the electricity comes from for these electric cars (coal), or the wars being fought for the resources for the batteries.


Most of my electricity comes from hydroelectric power.
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« Reply #26 on: January 12, 2012, 08:05:32 AM »
Well last summer the Pentagon announced they had identified a deposit worth upwards of 1 trillion dollars in Afghanistan.  Coincidence?
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« Reply #26 on: January 12, 2012, 08:05:32 AM »

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« Reply #27 on: January 12, 2012, 08:08:52 AM »
Quote from: cbsnbiker on January 12, 2012, 08:03:24 AM


Most of my electricity comes from hydroelectric power.



I just use coal as an example since it's the largest source of electricity here in the USA.
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« Reply #28 on: January 12, 2012, 08:17:57 AM »
Quote from: Cablebandit on January 12, 2012, 08:05:32 AM

Well last summer the Pentagon announced they had identified a deposit worth upwards of 1 trillion dollars in Afghanistan.  Coincidence?


Lithium occurs almost anywhere on earth; very common element - it's only a matter of developing the resource. The easiest extraction method is from brine salts, of which we have a lot of right here in the good old USA.

The "deposits" you speak of in Afghanistan are not just lithium, they're gold, copper, and a plethora of other commodities. Certainly not worth going to war over.
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« Reply #29 on: January 12, 2012, 08:23:33 AM »
Quote from: Cablebandit on January 12, 2012, 08:08:52 AM



I just use coal as an example since it's the largest source of electricity here in the USA.


That's valid, but we do have good hydroelectric in this area.
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« Reply #30 on: January 12, 2012, 08:34:40 AM »
Directly from the DOE website. 2010 data.

http://i956.photobucket.com/albums/ae42/axelwik/sources_US_elec_generation-large.jpg
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« Reply #31 on: January 12, 2012, 09:12:36 AM »
Quote from: axelwik on January 12, 2012, 08:34:40 AM

Directly from the DOE website. 2010 data.



10% renewable is better than I thought. I assume that's almost all hydro?

Regardless, it's a cool concept and I have a real soft spot for this kind of backyard engineering. What will really matter is if that engine company can develop something efficient. Applications will follow if they do.
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« Reply #32 on: January 12, 2012, 09:38:45 AM »
I had no idea nucular was so high.  Wink
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« Reply #33 on: January 12, 2012, 10:06:07 AM »
Quote from: Kneescrubber on January 12, 2012, 09:38:45 AM

I had no idea nucular was so high.  Wink


There are still more than 100 nuke plants operating in the US.
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« Reply #33 on: January 12, 2012, 10:06:07 AM »

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« Reply #34 on: January 12, 2012, 10:18:43 AM »
I wonder about the effects of an accident on a pressure vessel.  If it comes to impact, I'd rather not be sitting on top of a 200 psi steel tank.  I suppose that could be said of almost any fuel source, but I think pressure vessels are particularly dangerous.  Maybe it could be handled in tank design?
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« Reply #35 on: January 12, 2012, 10:22:04 AM »
CNG vehicles have been around for a while with no real instances of horrible accidents.
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« Reply #36 on: January 12, 2012, 10:22:37 AM »
Quote from: mesmotized on January 12, 2012, 10:18:43 AM

I wonder about the effects of an accident on a pressure vessel.  If it comes to impact, I'd rather not be sitting on top of a 200 psi steel tank.  I suppose that could be said of almost any fuel source, but I think pressure vessels are particularly dangerous.  Maybe it could be handled in tank design?


It could make for an interesting ride!



http://youtu.be/tyINNUaXa8Q
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« Reply #37 on: January 12, 2012, 10:43:38 AM »
Quote from: the frenchman on January 12, 2012, 10:25:35 AM



It's not in English, so it doesn't apply. The English speaking tanks are much better.


No question. I don't even trust bilingual tanks.

Although the test should relieve the explosion anxiety. The tanks didn't explode when holed. The air leaked out. There was enough of a jet to move the tank around. Maybe it would move the bike a bit and scratch the fairing.

I know they were busting off the valve and not holing the side of the tank, but the right materials, it's going to be the same result, I think. They don't explode. They foof.*


* Highly technical engineering term.
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« Reply #38 on: January 12, 2012, 11:57:45 AM »
Is foofing really loud? If so, it might appeal to the Harley crowd.
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