Pitfalls of Exergy Analysis
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23640%2F17%3A43931859" target="_blank" >RIV/49777513:23640/17:43931859 - isvavai.cz</a>
Alternative codes found
RIV/60461373:22340/17:43913850 RIV/00216208:11320/17:10360973
Result on the web
<a href="http://dx.doi.org/10.1515/jnet-2016-0043" target="_blank" >http://dx.doi.org/10.1515/jnet-2016-0043</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1515/jnet-2016-0043" target="_blank" >10.1515/jnet-2016-0043</a>
Alternative languages
Result language
angličtina
Original language name
Pitfalls of Exergy Analysis
Original language description
The well-known Gouy–Stodola theorem states that a device produces maximum useful power when working reversibly, that is with no entropy production inside the device. This statement then leads to a method of thermodynamic optimization based on entropy production minimization. Exergy destruction (difference between exergy of fuel and exhausts) is also given by entropy production inside the device. Therefore, assessing efficiency of a device by exergy analysis is also based on the Gouy–Stodola theorem. However, assumptions that had led to the Gouy–Stodola theorem are not satisfied in several optimization scenarios, e.g. non-isothermal steady-state fuel cells, where both entropy production minimization and exergy analysis should be used with caution. We demonstrate, using non-equilibrium thermodynamics, a few cases where entropy production minimization and exergy analysis should not be applied.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20303 - Thermodynamics
Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2017
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Journal of Non-Equilibrium Thermodynamics
ISSN
0340-0204
e-ISSN
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Volume of the periodical
42
Issue of the periodical within the volume
2
Country of publishing house
DE - GERMANY
Number of pages
16
Pages from-to
201-216
UT code for WoS article
000398971100006
EID of the result in the Scopus database
2-s2.0-85016820743