Evaluation of a solar intermittent refrigeration system for ice production operating with ammonia/lithium nitrate

被引：45
作者：
Rivera, W. [1 ]
Moreno-Quintanar, G. [1 ]
Rivera, C. O. [2 ]
Best, R. [1 ]
Martinez, F. [2 ]
机构：
[1] Univ Nacl Autonoma Mexico, Ctr Invest Energia, Temixco 62580, Mor, Mexico
[2] Univ Veracruzana, Fac Ingn, Coatzacoalcos 96530, Ver, Mexico
来源：
SOLAR ENERGY | 2011年 / 85卷 / 01期
关键词：
Solar refrigeration; Absorption systems; Ice production; Ammonia/lithium nitrate; AMMONIA-LITHIUM-NITRATE; ADSORPTION REFRIGERATION; PERFORMANCE;
D O I：
10.1016/j.solener.2010.11.007
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
A novel solar intermittent refrigeration system for ice production developed in the Centro de Investigacion en Energia of the Universidad Nacional Autonoma de Mexico is presented. The system operates with the ammonia/lithium nitrate mixture. The system developed has a nominal capacity of 8 kg of ice/day. It consists of a cylindrical parabolic collector acting as generator-absorber. Evaporator temperatures as low as - 11 degrees C were obtained for several hours with solar coefficients of performance up to 0.08. It was found that the coefficient of performance increases with the increment of solar radiation and the solution concentration. A dependency of the coefficient of performance was not founded against the cooling water temperature. Also it was found that the maximum operating pressure increases meanwhile the generation temperature decreases with an increase of the solution concentration. (C) 2010 Elsevier Ltd. All rights reserved.
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页码：38 / 45
页数：8
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