Energetic and exergetic analysis of a commercial ammonia-water absorption chiller

被引：16
作者：
El May, S. [1 ]
Boukholda, I. [1 ]
Bellagi, A. [1 ]
机构：
[1] ENIM, Unite Rech Therm & Thermodynam Procedes Ind, UTThPI, Monastir 5019, Tunisia
来源：
INTERNATIONAL JOURNAL OF EXERGY | 2011年 / 8卷 / 01期
关键词：
absorption; air conditioner; thermodynamic analysis; exergy; COP degradation; REFRIGERATION; SYSTEM;
D O I：
10.1504/IJEX.2011.037213
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
The results of an energetic and exergetic analysis of a commercial water/ammonia air-cooled absorption chiller with a cooling capacity of 10 kW are presented and discussed. The comparison with a conventional-single effect chiller operating under the same conditions shows that to reach similar performances to those of pre-absorber equipped installation an additional heat transfer area in the air-cooled absorber is necessary to ensure the absorption of totality of the refrigerant. The second law analysis reveals that the highest exergy dissipation (75%) is located in the driving compartment and that the irreversible absorption process is responsible for an important part (45%) of the COP degradation.
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收藏
页码：33 / 50
页数：18
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