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冷藏陈列柜减湿预冷器对蒸发器性能的影响分析
引用本文:张文慧,龚毅,吕彦力.冷藏陈列柜减湿预冷器对蒸发器性能的影响分析[J].制冷学报,2012,33(1):57-59.
作者姓名:张文慧  龚毅  吕彦力
作者单位:郑州轻工业学院 郑州 450002
基金项目:国家自然科学基金(21076200/B060202)资助项目~~
摘    要:为了减缓冷藏陈列柜结霜,在一台中温立式敞开式冷藏陈列柜上加装减湿预冷器,并针对加装前后冷藏陈列柜的性能进行了实验。实验结果表明:在国家标准GB/T21001.1—2007《冷藏陈列柜第2部分:分类、要求和实验条件》中设定的Climate class 3实验条件下(测试环境温度为25℃,相对湿度为60%),加装减湿预冷器使冷藏陈列柜蒸发器的进口空气温度降低2.4℃,含湿量也相应降低;此外蒸发器的结霜速度变缓,在6h的融霜周期内融霜时间减少了28%,系统负荷降低了19.2%。

关 键 词:食品冷藏技术  陈列柜  空气预冷器  蒸发器

Effect of Pre-cooler on Performance of Evaporator in Display Cabinet
Zhang Wenhui , Gong Yi , Lv Yanli.Effect of Pre-cooler on Performance of Evaporator in Display Cabinet[J].Journal of Refrigeration,2012,33(1):57-59.
Authors:Zhang Wenhui  Gong Yi  Lv Yanli
Affiliation:Zhang Wenhui Gong Yi Lv Yanli(Zhengzhou University of Light Industry,Zhengzhou,450002,China)
Abstract:The effect of pre-cooler on performance of evaporator was investigated on a mid-temperature vertical open-type display cabinet.And an experimental investigation was undertaken in the test room(temperature of 25℃ and relative humidity of 60%) to characterize the effect of pre-cooler on performance of evaporator in display cabinet.The results showed that: the condition of the air inlet evaporator were changed,and temperature of the air inlet evaporator was reduced by 2.4℃;the accumulation rate of frost on the evaporator was dropped and the defrost time was reduced by 28%;and the use of pre-cooler could lead to significant decrease in the cooling load by 19.2%.
Keywords:Food storage technology  Display cabinet  Pre-cooler  Evaporator
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