Performance Optimization of Generalized Irreversible Refrigerator Based on a New Ecological Criterion
On the basis of the exergy analysis, a performance optimization is carried out for a generalized irreversible refrigerator model, which takes into account the heat resistance, heat leakage and internal irreversibility losses. A new ecological criterion, named coefficient of performance of exergy (CO...
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| Format: | Article |
| Language: | English |
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MDPI AG
2013-11-01
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| Series: | Entropy |
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| Online Access: | http://www.mdpi.com/1099-4300/15/12/5277 |
| _version_ | 1798043195411529728 |
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| author | Jie Xu Liping Pang Jun Wang |
| author_facet | Jie Xu Liping Pang Jun Wang |
| author_sort | Jie Xu |
| collection | DOAJ |
| description | On the basis of the exergy analysis, a performance optimization is carried out for a generalized irreversible refrigerator model, which takes into account the heat resistance, heat leakage and internal irreversibility losses. A new ecological criterion, named coefficient of performance of exergy (COPE), defined as the dimensionless ratio of the exergy output rate to the exergy loss rate, is proposed as an objective function in this paper. The optimal performance factors which maximize the ecological objective function have been discussed. Numerical examples are given to explain the influences of heat leakage and internal irreversibility on the generalized and optimal performances. This new ecological criterion may be beneficial for determining the reasonable design of refrigerators. |
| first_indexed | 2024-04-11T22:47:10Z |
| format | Article |
| id | doaj.art-4e83f57e2d99490988d283f2e4e02470 |
| institution | Directory Open Access Journal |
| issn | 1099-4300 |
| language | English |
| last_indexed | 2024-04-11T22:47:10Z |
| publishDate | 2013-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Entropy |
| spelling | doaj.art-4e83f57e2d99490988d283f2e4e024702022-12-22T03:58:44ZengMDPI AGEntropy1099-43002013-11-0115125277529110.3390/e15125277e15125277Performance Optimization of Generalized Irreversible Refrigerator Based on a New Ecological CriterionJie Xu0Liping Pang1Jun Wang2School of Aviation Science and Engineering, Beihang University, Beijing 100191, ChinaSchool of Aviation Science and Engineering, Beihang University, Beijing 100191, ChinaSchool of Aviation Science and Engineering, Beihang University, Beijing 100191, ChinaOn the basis of the exergy analysis, a performance optimization is carried out for a generalized irreversible refrigerator model, which takes into account the heat resistance, heat leakage and internal irreversibility losses. A new ecological criterion, named coefficient of performance of exergy (COPE), defined as the dimensionless ratio of the exergy output rate to the exergy loss rate, is proposed as an objective function in this paper. The optimal performance factors which maximize the ecological objective function have been discussed. Numerical examples are given to explain the influences of heat leakage and internal irreversibility on the generalized and optimal performances. This new ecological criterion may be beneficial for determining the reasonable design of refrigerators.http://www.mdpi.com/1099-4300/15/12/5277thermodynamic cycleperformancerefrigeratorecological optimization |
| spellingShingle | Jie Xu Liping Pang Jun Wang Performance Optimization of Generalized Irreversible Refrigerator Based on a New Ecological Criterion Entropy thermodynamic cycle performance refrigerator ecological optimization |
| title | Performance Optimization of Generalized Irreversible Refrigerator Based on a New Ecological Criterion |
| title_full | Performance Optimization of Generalized Irreversible Refrigerator Based on a New Ecological Criterion |
| title_fullStr | Performance Optimization of Generalized Irreversible Refrigerator Based on a New Ecological Criterion |
| title_full_unstemmed | Performance Optimization of Generalized Irreversible Refrigerator Based on a New Ecological Criterion |
| title_short | Performance Optimization of Generalized Irreversible Refrigerator Based on a New Ecological Criterion |
| title_sort | performance optimization of generalized irreversible refrigerator based on a new ecological criterion |
| topic | thermodynamic cycle performance refrigerator ecological optimization |
| url | http://www.mdpi.com/1099-4300/15/12/5277 |
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