Optimal low symmetric dissipation Carnot engines and refrigerators
A unified optimization criterion for Carnot engines and refrigerators is proposed. It consists of maximizing the product of the heat absorbed by the working system times the efficiency per unit time of the device, either the engine or the refrigerator. This criterion can be applied to both low symme...
| Main Authors: | , , |
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| Format: | Journal Article |
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The American Physical Society
2012
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| Online Access: | http://hdl.handle.net/20.500.11937/52062 |
| _version_ | 1848758835094749184 |
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| author | de Tomas, Carla Mercedes Hernández, A. Roco, J. |
| author_facet | de Tomas, Carla Mercedes Hernández, A. Roco, J. |
| author_sort | de Tomas, Carla Mercedes |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | A unified optimization criterion for Carnot engines and refrigerators is proposed. It consists of maximizing the product of the heat absorbed by the working system times the efficiency per unit time of the device, either the engine or the refrigerator. This criterion can be applied to both low symmetric dissipation Carnot engines and refrigerators. For engines the criterion coincides with the maximum power criterion and then the Curzon-Ahlborn efficiency ? CA=1-vT c/T h is recovered, where T h and T c are the temperatures of the hot and cold reservoirs, respectively. For refrigerators the criterion provides the counterpart of Curzon-Ahlborn efficiency for refrigerators > CA=[1/ (v1-(T c/T h)]-1, first derived by Yan and Chen for the particular case of an endoreversible Carnot-type refrigerator with linear (Newtonian) finite heat transfer laws. © 2012 American Physical Society. |
| first_indexed | 2025-11-14T09:50:18Z |
| format | Journal Article |
| id | curtin-20.500.11937-52062 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T09:50:18Z |
| publishDate | 2012 |
| publisher | The American Physical Society |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-520622017-09-13T15:38:22Z Optimal low symmetric dissipation Carnot engines and refrigerators de Tomas, Carla Mercedes Hernández, A. Roco, J. A unified optimization criterion for Carnot engines and refrigerators is proposed. It consists of maximizing the product of the heat absorbed by the working system times the efficiency per unit time of the device, either the engine or the refrigerator. This criterion can be applied to both low symmetric dissipation Carnot engines and refrigerators. For engines the criterion coincides with the maximum power criterion and then the Curzon-Ahlborn efficiency ? CA=1-vT c/T h is recovered, where T h and T c are the temperatures of the hot and cold reservoirs, respectively. For refrigerators the criterion provides the counterpart of Curzon-Ahlborn efficiency for refrigerators > CA=[1/ (v1-(T c/T h)]-1, first derived by Yan and Chen for the particular case of an endoreversible Carnot-type refrigerator with linear (Newtonian) finite heat transfer laws. © 2012 American Physical Society. 2012 Journal Article http://hdl.handle.net/20.500.11937/52062 10.1103/PhysRevE.85.010104 The American Physical Society restricted |
| spellingShingle | de Tomas, Carla Mercedes Hernández, A. Roco, J. Optimal low symmetric dissipation Carnot engines and refrigerators |
| title | Optimal low symmetric dissipation Carnot engines and refrigerators |
| title_full | Optimal low symmetric dissipation Carnot engines and refrigerators |
| title_fullStr | Optimal low symmetric dissipation Carnot engines and refrigerators |
| title_full_unstemmed | Optimal low symmetric dissipation Carnot engines and refrigerators |
| title_short | Optimal low symmetric dissipation Carnot engines and refrigerators |
| title_sort | optimal low symmetric dissipation carnot engines and refrigerators |
| url | http://hdl.handle.net/20.500.11937/52062 |