Stirling + PAC: snake biting its tail?

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elephant
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Stirling + PAC: snake biting its tail?




by elephant » 09/09/13, 13:10

I display the greatest caution when faced with this announcement:

http://www.wikistrike.com/article-energ ... 52420.html

from the can, because it's a snake that bites its tail or does it work?

What do our thermodynamicists think about it?
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by Christophe » 09/09/13, 13:15

A snake that bites its tail is a Ouroboros and it is ... a legend!

http://fr.wikipedia.org/wiki/Ouroboros
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by chatelot16 » 09/09/13, 13:49

it is the principle of all perpetual movement! make it complicated enough not to know how to calculate it exactly, make some miscalculation to believe that it works


basically a heat pump, heat pump to the ambient air, and thanks to its good COP gives heat which does not cost much to a thermal engine

carnot calculated all this a long time ago

Maximum COP of a heat pump is exactly the opposite of the maximum efficiency of a heat engine at the same temperature!

if the heat pump has a theoretical COP of 5 it will operate a motor with theoretical maximum efficiency 1/5

result 5 x 1/5 = 1

and since the actual result is less than the theory: profit = loss

it's as bad as the electric motor that turns a dynamo that powers the motor
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by Remundo » 09/09/13, 17:50

Hi Elephant
Here is the schematic plan of a device that can produce energy in electrical or mechanical form, from the heat of the ambient air.

Since there is no cold source (only one heat source, the ambient air), this is impossible.

If you want to see serious things and thermally surunitary, look here... If we had clever industrialists and a real energy policy, they would offer these things (PAC + Stirling cogeneration coupling), and we would no longer have a blackout in winter

@+
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by elephant » 09/09/13, 22:49

So I did well to be wary (what I said at the opening of the post).
Goods.
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