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%。
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%.
出处
《制冷学报》
CAS
CSCD
北大核心
2012年第1期57-59,共3页
Journal of Refrigeration
基金
国家自然科学基金(21076200/B060202)资助项目~~
关键词
食品冷藏技术
陈列柜
空气预冷器
蒸发器
Food storage technology
Display cabinet
Pre-cooler
Evaporator
