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Exergy Vs Energy

thermodynamics entropy generation efficiency quality of energy

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#1 panoskagiou

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Posted 01 July 2018 - 03:11 PM

Hello everyone, Could you please tell me how the energy and exergy are related each other?

 

I am looking forward for your answers!



#2 MrShorty

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Posted 02 July 2018 - 09:40 AM

Without knowing what textbook or other sources you may have, I might suggest you start with Wikipedia: https://en.wikipedia.org/wiki/Exergy



#3 panoskagiou

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Posted 02 July 2018 - 12:14 PM

I have already done it. I am looking for someone, who can tell me how he can understand this concept with a nice example.



#4 MrShorty

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Posted 02 July 2018 - 05:57 PM

The Wikipedia article uses the example of air at ambient conditions as having 0 exergy. So, one could easily talk about the exergy (potential to do work) of a compressed air cylinder.

 

A quick internet search for "exergy examples" gives this page with a few examples: https://www.ohio.edu.../Chapter7a.html






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