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Author Topic: How much energy is available from entropy?  (Read 1102 times)

Offline peppercorn

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How much energy is available from entropy?
« on: 25/07/2013 23:08:20 »

A two-stage process to harvest some of the chemical energy in carbon dioxide emissions, using a device called a capacitive electrochemical cell.

http://cen.acs.org/articles/91/web/2013/07/Harvesting-Energy-Carbon-Dioxide-Emissions.html

Bazaar huh?
So how much extra power does this really represent?


 

Offline grizelda

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Re: How much energy is available from entropy?
« Reply #1 on: 26/07/2013 19:15:40 »
Always good to read of a solution that isn't just an excuse for more taxation, but still, I wish I had a dollar for every time I heard "will require more energy input than it will generate as output."
 

Offline peppercorn

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Re: How much energy is available from entropy?
« Reply #2 on: 27/07/2013 12:21:04 »
..."will require more energy input than it will generate as output."

Quite! In this case, how come there's still net energy left in the system after the fuel is burnt? (as kinda a mirror to your statement).

The article claims that there is the potential for 400 Hoover dams worth of energy worldwide.
But a) how much of this is practically (and economically) realisable?
and b) that sounds a lot but if it includes every smokestack on the planet, is this still not a piddling percentage?

Still kinda interesting though!
 

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Re: How much energy is available from entropy?
« Reply #2 on: 27/07/2013 12:21:04 »

 

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