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提出了一种溶液冷却吸收的氨水吸收式制冷循环方案,即利用来自吸收器的浓溶液冷却吸收过程的前半部分以回收部分吸收热.由于进入溶液热交换器的浓溶液温度提高,在其出口浓溶液将部分沸腾,因而可减少外界热源的消耗.计算结果显示,在典型条件下改进循环的性能系数(COP)比传统循环提高约28.3%,而该循环所有换热器所需的总换热面积则比传统循环略有减少.在同等条件下与吸附式制冷方案相比,改进循环的制冷量可增加1倍多.渔船采用改进循环的制冷机后用其自身柴油机废气足以提供渔品保鲜用的制冷量.
An ammonia-water absorption refrigeration cycle scheme is proposed for solution cooling absorption, in which the first half of the absorption process is cooled by a concentrated solution from an absorber to recover a portion of the heat of absorption.Because the concentrated solution entering the solution heat exchanger is raised in temperature, The concentrated solution will be partially boiled, thus reducing the consumption of external heat sources.The calculation results show that under typical conditions the coefficient of performance (COP) of the improved cycle is about 28.3% higher than the traditional cycle, and the total exchange Heat area is slightly less than the traditional cycle.According to the same conditions compared with the adsorption refrigeration program, the improved circulation of cooling capacity can be more than doubled.Fisheries with improved circulation of the refrigerator with its own diesel exhaust enough to provide fisheries Preservation of the cooling capacity.