Thermodynamic analysis of a novel combined double ejector-absorption refrigeration system using ammonia/salt working pairs without mechanical pumps
Thermodynamic analysis of a novel combined double ejector-absorption refrigeration system using ammonia/salt working pairs without mechanical pumps
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采用无机械泵的氨/盐工作对的新型组合式双喷射吸收式制冷系统的热力学分析
DOI：
10.1016/j.energy.2019.07.104
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发表时间：
2019-10
期刊：
影响因子：
9
通讯作者：
Cai Dehua
中科院分区：
文献类型：
--
作者：
Liang Xiao;Zhou Sai;Deng Jiaju;He Guogeng;Cai Dehua
This paper proposed an absorption refrigeration system which employed two ejectors as cycle power source instead of mechanical pumps. Ammonia/lithium nitrate and ammonia/sodium thiocyanate solutions are applied as working pairs as well as an air-cooled type absorber are put up in this system. The liquid-vapor ejector is located at the inlet of the absorber, the steam-driven jet pump is set at the up-stream of the back flow of solution heat exchanger. Thermodynamic performance of this absorption refrigeration system has been comprehensively studied by numerical method; thus, comparison has been made with the conventional absorption refrigeration system. The result indicates that, compared with conventional air-cooled absorption refrigeration cycles, this novel combined double-ejector refrigeration cycle (DEARC) sacrifices part of refrigerant which leads to a decline of system COP value. But still, COP of DEARC can reach 0.6354, which is sufficient for practical use under exhaust heat conditions. Pressure ratio of liquid-vapor and the absorber outlet solution temperature are both two factors which make it possible to improve the system performance furthermore. Vapor consumption ratio is another key factor which has great influence to system performance. The wider range of generating temperature and the air-cooled type absorber of DEARC make it easy for the whole system to achieve miniaturization and simplification.
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影响因子：
9
作者：
T. Hu;Xiaoyun Xie;Yi Jiang
通讯作者：
T. Hu;Xiaoyun Xie;Yi Jiang
影响因子：
6.7
作者：
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Fei Wang;S. Shen
影响因子：
15.9
作者：
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Pongsid Srikhirin;S. Aphornratana;S. Chungpaibulpatana
DOI：
10.1016/j.ijrefrig.2013.11.006
发表时间：
2014-04
期刊：
International Journal of Refrigeration-revue Internationale Du Froid
影响因子：
--
作者：
L. G. Farshi;C. Ferreira;S. Mahmoudi;M. Rosen
通讯作者：
L. G. Farshi;C. Ferreira;S. Mahmoudi;M. Rosen
影响因子：
--
作者：
S. K. Chaudhari;D. Salavera;A. Coronas
通讯作者：
S. K. Chaudhari;D. Salavera;A. Coronas