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[Engadget] Urine-powered generator produces six hours of electricity per bathroom break - Page 3

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post #21 of 55

11/9/12 at 6:58am

Ghoxt

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Quote:

Originally Posted by TehStone

The catch is they didn't tell you the total output in watts/amps. Can it power a smartphone for six hours or a house for six hours?
And I also discovered this is a repost but I did a better job

That looks like a "gas" powered Generator front and center...

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post #22 of 55

11/9/12 at 7:00am

xeekei
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Urine, eh? Put this thing in the toilet and decrease energy consumption a tiny bit.

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post #23 of 55

11/9/12 at 7:01am

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Quote:

Originally Posted by TehStone

The catch is they didn't tell you the total output in watts/amps. Can it power a smartphone for six hours or a house for six hours?
And I also discovered this is a repost but I did a better job

True, but a better use nonetheless instead of flushing it down the toilet

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post #24 of 55

11/9/12 at 7:13am

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Electrolytic cracking requires electricity...and electricity costs something. It's an interesting idea, and from the paper they linked, urea electrolysis is more efficient at producing H2 than water electrolysis. Apply a voltage to the electrode, crack urea, run the H2 through a fuel cell, produce electricity and water. Good show.

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post #25 of 55

11/9/12 at 8:21am

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o.o, but HOW/???

If I had one of these at my house I would have a nice amount of extra power... drunks at my house 24/7... they piss A LOT.

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post #26 of 55

11/9/12 at 8:22am

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I've seen this before I'm pretty certain it's not new.

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post #27 of 55

11/9/12 at 8:25am

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Im my eyes it doesn't matter how efficient this thing is. Lets take a step back from our highly privileged lives for a moment and look at this device.

The fact that its powered by urine is great for remote place's in the world, or to take camping/fishing/hunting. Yea, their version might be highly inefficient but how much money did they get to spend on R&D? What could happen to their working idea if more money was spent and they had better access to facility's that would help them create a better result?

This is a great idea. kudo's to these girls. Turning urine into something usable is great! anything we can do with waste is useful.

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post #28 of 55

11/9/12 at 8:45am

Fuell
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Not 100% new but seems more practical. I think the one I heard of a year or more was batteries you peed on to recharge or something...

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post #29 of 55

11/9/12 at 8:51am

ryboto
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Quote:

Originally Posted by KhaoticKomputing

Im my eyes it doesn't matter how efficient this thing is. Lets take a step back from our highly privileged lives for a moment and look at this device.
The fact that its powered by urine is great for remote place's in the world, or to take camping/fishing/hunting. Yea, their version might be highly inefficient but how much money did they get to spend on R&D? What could happen to their working idea if more money was spent and they had better access to facility's that would help them create a better result?
This is a great idea. kudo's to these girls. Turning urine into something usable is great! anything we can do with waste is useful.

Urine is urea and water, two hydrogen containing molecules. Not that crazy that you can use electrolysis on both to produce hydrogen. This still requires a fuel cell to produce power efficiently though(not cheap right now)...

edit- they're using a generator, which is just burning the hydrogen. Cheap to operate and purchase, but wastes a lot of the potential energy.
Edited by ryboto - 11/9/12 at 8:56am

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11/9/12 at 9:15am

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Would like to see more proof of this, until then I don't buy it. At least not in the "WOW, amazing what these girls have done"-way.

Let's be serious here: a couple of girls find an amazing solution that none of the other university-schooled engineers couldn't come up with .... This isn't Disney ...

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