| 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 |
| DOI： |
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| 基金项目: |
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| Effect of Pre-cooler on Performance of Evaporator in Display Cabinet |
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Zhang Wenhui, Gong Yi, Lü Yanli
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| (Zhengzhou University of Light Industry) |
| 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%. |
| Key words: Food storage technology Display cabinet Pre-cooler Evaporator |
