Comments on “The Principle of Least Action for Reversible Thermodynamic Processes and Cycles”, <i>Entropy</i> 2018, <i>20</i>, 542
The goal of this comment note is to express my concerns about the recent paper by Tian Zhao et al. (<i>Entropy</i> <b>2018</b>, <i>20</i>, 542). It is foreseen that this comment will stimulate a fruitful discussion of the issues involved. The principle of the leas...
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| Format: | Article |
| Language: | English |
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MDPI AG
2018-12-01
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| Series: | Entropy |
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| Online Access: | https://www.mdpi.com/1099-4300/20/12/980 |
| _version_ | 1828116066981642240 |
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| author | Edward Bormashenko |
| author_facet | Edward Bormashenko |
| author_sort | Edward Bormashenko |
| collection | DOAJ |
| description | The goal of this comment note is to express my concerns about the recent paper by Tian Zhao et al. (<i>Entropy</i> <b>2018</b>, <i>20</i>, 542). It is foreseen that this comment will stimulate a fruitful discussion of the issues involved. The principle of the least thermodynamic action is applicable for the analysis of the Carnot cycle using the entropy (not heat) generation extrema theorem. The transversality conditions of the variational problem provide the rectangular shape of the <i>ST</i> diagram for the Carnot cycle. |
| first_indexed | 2024-04-11T12:51:16Z |
| format | Article |
| id | doaj.art-f65b684bf9f7447c8d32ccb5943b1ded |
| institution | Directory Open Access Journal |
| issn | 1099-4300 |
| language | English |
| last_indexed | 2024-04-11T12:51:16Z |
| publishDate | 2018-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Entropy |
| spelling | doaj.art-f65b684bf9f7447c8d32ccb5943b1ded2022-12-22T04:23:13ZengMDPI AGEntropy1099-43002018-12-01201298010.3390/e20120980e20120980Comments on “The Principle of Least Action for Reversible Thermodynamic Processes and Cycles”, <i>Entropy</i> 2018, <i>20</i>, 542Edward Bormashenko0Engineering Faculty, Chemical Engineering, Biotechnology and Materials Department, Ariel University, P.O.B. 3, 407000 Ariel, IsraelThe goal of this comment note is to express my concerns about the recent paper by Tian Zhao et al. (<i>Entropy</i> <b>2018</b>, <i>20</i>, 542). It is foreseen that this comment will stimulate a fruitful discussion of the issues involved. The principle of the least thermodynamic action is applicable for the analysis of the Carnot cycle using the entropy (not heat) generation extrema theorem. The transversality conditions of the variational problem provide the rectangular shape of the <i>ST</i> diagram for the Carnot cycle.https://www.mdpi.com/1099-4300/20/12/980heat enginesprinciple of least actionCarnot cycleentropy productiontransversality conditions |
| spellingShingle | Edward Bormashenko Comments on “The Principle of Least Action for Reversible Thermodynamic Processes and Cycles”, <i>Entropy</i> 2018, <i>20</i>, 542 Entropy heat engines principle of least action Carnot cycle entropy production transversality conditions |
| title | Comments on “The Principle of Least Action for Reversible Thermodynamic Processes and Cycles”, <i>Entropy</i> 2018, <i>20</i>, 542 |
| title_full | Comments on “The Principle of Least Action for Reversible Thermodynamic Processes and Cycles”, <i>Entropy</i> 2018, <i>20</i>, 542 |
| title_fullStr | Comments on “The Principle of Least Action for Reversible Thermodynamic Processes and Cycles”, <i>Entropy</i> 2018, <i>20</i>, 542 |
| title_full_unstemmed | Comments on “The Principle of Least Action for Reversible Thermodynamic Processes and Cycles”, <i>Entropy</i> 2018, <i>20</i>, 542 |
| title_short | Comments on “The Principle of Least Action for Reversible Thermodynamic Processes and Cycles”, <i>Entropy</i> 2018, <i>20</i>, 542 |
| title_sort | comments on the principle of least action for reversible thermodynamic processes and cycles i entropy i 2018 i 20 i 542 |
| topic | heat engines principle of least action Carnot cycle entropy production transversality conditions |
| url | https://www.mdpi.com/1099-4300/20/12/980 |
| work_keys_str_mv | AT edwardbormashenko commentsontheprincipleofleastactionforreversiblethermodynamicprocessesandcyclesientropyi2018i20i542 |