Discussion on the analogy between heat and electric conductions
| Autor: | XinGang Liang, XueTao Cheng |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Fluid Flow and Transfer Processes
Physics 020209 energy Mechanical Engineering media_common.quotation_subject Process (computing) Analogy Second law of thermodynamics 02 engineering and technology Mechanics 021001 nanoscience & nanotechnology Condensed Matter Physics law.invention Mechanical system Capacitor law Thermal 0202 electrical engineering electronic engineering information engineering Solid body 0210 nano-technology media_common |
| Zdroj: | International Journal of Heat and Mass Transfer. 131:709-712 |
| ISSN: | 0017-9310 |
| Popis: | Recently, the analogy between the processes of heating a solid body and charging an electric capacitor was deemed as “heat-work analogy” and argued that it was false and violated the second law of thermodynamics. It was claimed that the two processes were not analogous because the process of heating a solid body was classified as a purely thermal system, while that of charging an electric capacitor was classified as a purely mechanical system. In response, this note discusses the analogy between heat and electric conductions and that between heating a solid body and charging an electric capacitor. It is shown that the analogies have nothing to do with heat-work conversion, and never violate the second law of thermodynamics. The classification of charging an electric capacitor as a purely mechanical system is inappropriate. It is also shown that what we concern in the analogy analysis are the commonalities between the processes, rather than the differences. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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