Generalized expression of exergy in the thermodynamics |
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| Authors: | HAN Guangze HUA Ben Chen Qinglin YIN Qinghua |
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| Institution: | 1. Department of Applied Physics,South China University of Technology,Guangzhou 510640,China;Key Laboratory of Enhanced Heat Transfer and Energy Conservation,Ministry of Education,South China University of Technology,Guangzhou 510640,China
2. Key Laboratory of Enhanced Heat Transfer and Energy Conservation,Ministry of Education,South China University of Technology,Guangzhou 510640,China |
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| Abstract: | Exergy is the ability of the maximum work done to the objective (relative) outside when the system changes from any state
to its dead state. Exergy stems from the gaps of intensive properties between its present state and its dead state. Generalized
differential expression of exergy is advanced without any premise conditions, which is composed of generalized intensive and
extensive (additive) properties. Any form of exergy can be deduced out from this generalized expression, only if its characteristic
intensive and extensive parameters are known. That the exergy of any closed system is never below zero has been proved. |
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| Keywords: | dead state objective outside exergy generalized expression of exergy |
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