种子库蒸发器冷却除湿过程的数值模拟  

Numerical simulation of cooling and dehumidification process in evaporator of seed storage

作　　者：甄仌[1] 孙惠蕾 张雪 苏格毅 杨红艳 许莹莹 ZHEN Bing;SUN Hui-lei;ZHANG Xue;SU Ge-yi;YANG Hong-yan;XU Ying-ying(School of Energy and Civil Engineering,Harbin University of Commerce,Harbin 150028,China)

机构地区：[1]哈尔滨商业大学能源与建筑工程学院,哈尔滨150028

出　　处：《哈尔滨商业大学学报（自然科学版）》2022年第2期204-211,共8页Journal of Harbin University of Commerce：Natural Sciences Edition

基　　金：黑龙江省自然科学基金联合引导项目(LH2019E069);哈尔滨商业大学博士科研启动金项目(12DL003)。

摘　　要：利用低温冷库贮藏种子时,保证库内较低的湿度能实现对种子的长期贮藏并保证种子出库后的发芽率.针对种子库内蒸发器冷却除湿的过程中进行研究,在库内相对湿度为90%,温度为20℃的初始状态下,改变蒸发器出风口温度为5、10、15℃,模拟蒸发器冷却除湿过程的温度及湿度分布情况.研究发现,蒸发器出风口温度为5℃更适合储存种子,但是只采用冷却除湿方法来进行除湿,冷库内的相对湿度分布不均匀,故应加入其他辅助除湿方式.When the seeds were stored in cold storage, the low humidity in the storage can realize the long-term storage of the seeds and ensure the germination rate after the seeds are out of the storage. This paper studied the evaporator cooling and dehumidification process in the seed storage. Under the initial state of the relative humidity in the storage was 90% and the temperature was 20℃, the outlet temperature of evaporator was changed to 5, 10 and 15 ℃, and the temperature and humidity distribution during cooling and dehumidifying by evaporator were simulated. It was found that the outlet temperature of evaporator was 5 ℃, which was more suitable for storing seeds. However, if only cooling dehumidification method was used for dehumidification, the relative humidity distribution in cold storage was uneven, the other auxiliary dehumidification methods should be added.

关 键 词：种子库 低温贮藏 低湿储藏 冷却除湿 仿真模拟 相对湿度对比 

分 类 号：TB69[一般工业技术—制冷工程]