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Solar driven double-effect absorption cycles for sub-zero temperatures
被引:32
|作者:
Vasilescu, Catalina
[1
]
Ferreira, Carlos Infante
[1
]
机构:
[1] Delft Univ Technol, NL-2628 CA Delft, Netherlands
来源:
INTERNATIONAL JOURNAL OF REFRIGERATION-REVUE INTERNATIONALE DU FROID
|
2014年
/
39卷
关键词:
Solar absorption;
Double-effect absorption cycle;
Parallel flow;
Ammonia-lithium nitrate;
Simulation;
AMMONIA-LITHIUM-NITRATE;
EFFECT PARALLEL-FLOW;
HEAT-PUMPS;
REFRIGERATION SYSTEM;
COOLING SYSTEMS;
PERFORMANCE;
CHILLER;
DESIGN;
ENERGY;
D O I:
10.1016/j.ijrefrig.2013.09.034
中图分类号:
O414.1 [热力学];
学科分类号:
摘要:
This paper presents a theoretical study of a solar driven double-effect absorption system with ammonia lithium nitrate for sub-zero evaporation temperatures. The performance of a double-effect parallel flow ammonia based absorption system with lithium nitrate as absorbent is investigated. This includes the determination of the effect of the strong solution distribution on performance. A ratio of 0.65 appears to be the most advantageous. The paper also presents the dynamic performance of a double-effect ammonia-lithium nitrate absorption system driven by solar energy under Mediterranean summer conditions. The solar energy is obtained by horizontal N-S parabolic trough solar collectors because they can deliver high temperatures that are required to drive the double-effect absorption system. Simulations of the solar absorption systems with a hot storage are performed in order to supply the cooling load of a pork slaughterhouse with maximum cooling load of 600 kW. (C) 2013 Elsevier Ltd and HR. All rights reserved.
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页码:86 / 94
页数:9
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