Analysis of Hybrid Ejector Absorption Cooling System
In this paper, a hybrid ejector single-effect lithium-bromide water cycle is theoretically investigated. The system is a conventional single-effect cycle activated by an external steam-ejector loop. A mathematical model of the whole system is developed. Simulations are carried out to study the effec...
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| Format: | Article |
| Language: | English |
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Wiley
2019-01-01
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| Series: | Journal of Engineering |
| Online Access: | http://dx.doi.org/10.1155/2019/1862917 |
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| author | Doniazed Sioud Ahmed Bellagi |
| author_facet | Doniazed Sioud Ahmed Bellagi |
| author_sort | Doniazed Sioud |
| collection | DOAJ |
| description | In this paper, a hybrid ejector single-effect lithium-bromide water cycle is theoretically investigated. The system is a conventional single-effect cycle activated by an external steam-ejector loop. A mathematical model of the whole system is developed. Simulations are carried out to study the effect of the major parameters of the hybrid cycle on its performances and in comparison with the conventional cycle. The ejector performance is also investigated. Results show that the entrainment ratio rises with steam pressure and condenser temperature, while it decreases with increasing generator temperature. The effect of the evaporator temperature on ejector performance is negligible. It is shown also that the hybrid cycle exhibits better performances than the corresponding basic cycle. However, the performance improvement is limited to a specific range of the operating parameters. Outside this range, the hybrid system behaves similar to a conventional cycle. Inside this range, the COP increases, reaches a maximum, and then decreases and rejoins the behavior of the basic cycle. The maximum COP, which can be as large as that of a conventional double-effect cycle, about 1, is obtained at lower temperatures than in the case of single-effect cycles. |
| format | Article |
| id | doaj-art-8cfbfb64a8b64af0b6e7a571444b447d |
| institution | OA Journals |
| issn | 2314-4904 2314-4912 |
| language | English |
| publishDate | 2019-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Engineering |
| spelling | doaj-art-8cfbfb64a8b64af0b6e7a571444b447d2025-08-20T02:09:34ZengWileyJournal of Engineering2314-49042314-49122019-01-01201910.1155/2019/18629171862917Analysis of Hybrid Ejector Absorption Cooling SystemDoniazed Sioud0Ahmed Bellagi1Department of Energy Engineering, Ecole Nationale d’Ingénieurs de Monastir (ENIM), University of Monastir, TunisiaDepartment of Energy Engineering, Ecole Nationale d’Ingénieurs de Monastir (ENIM), University of Monastir, TunisiaIn this paper, a hybrid ejector single-effect lithium-bromide water cycle is theoretically investigated. The system is a conventional single-effect cycle activated by an external steam-ejector loop. A mathematical model of the whole system is developed. Simulations are carried out to study the effect of the major parameters of the hybrid cycle on its performances and in comparison with the conventional cycle. The ejector performance is also investigated. Results show that the entrainment ratio rises with steam pressure and condenser temperature, while it decreases with increasing generator temperature. The effect of the evaporator temperature on ejector performance is negligible. It is shown also that the hybrid cycle exhibits better performances than the corresponding basic cycle. However, the performance improvement is limited to a specific range of the operating parameters. Outside this range, the hybrid system behaves similar to a conventional cycle. Inside this range, the COP increases, reaches a maximum, and then decreases and rejoins the behavior of the basic cycle. The maximum COP, which can be as large as that of a conventional double-effect cycle, about 1, is obtained at lower temperatures than in the case of single-effect cycles.http://dx.doi.org/10.1155/2019/1862917 |
| spellingShingle | Doniazed Sioud Ahmed Bellagi Analysis of Hybrid Ejector Absorption Cooling System Journal of Engineering |
| title | Analysis of Hybrid Ejector Absorption Cooling System |
| title_full | Analysis of Hybrid Ejector Absorption Cooling System |
| title_fullStr | Analysis of Hybrid Ejector Absorption Cooling System |
| title_full_unstemmed | Analysis of Hybrid Ejector Absorption Cooling System |
| title_short | Analysis of Hybrid Ejector Absorption Cooling System |
| title_sort | analysis of hybrid ejector absorption cooling system |
| url | http://dx.doi.org/10.1155/2019/1862917 |
| work_keys_str_mv | AT doniazedsioud analysisofhybridejectorabsorptioncoolingsystem AT ahmedbellagi analysisofhybridejectorabsorptioncoolingsystem |