CO_2自动化立体冷库库温与能耗实验研究

Experimental research on temperature and energy consumption of single CO_2 automatic three-dimensional cold storage

本文研究对象为某自动化立体冷藏库,该库采用地埋管作为冷凝器,CO_2作为制冷工质,相对于传统冷库在库内制冷温度方面做了改进,并对冷库的制冷温度及机组能耗进行了测试,结果库内均匀度维持在0.6℃左右,波动范围为0.05~0.4℃,且中层波动最小;冷库能耗较低,每立方米年耗电量仅为6.2k Wh。

The object of this study was an automatic three - dimensional cold storage, the ground heat exchanger was used as condenser , and CO2 was the refrigerant. Compared with the traditional cold storage, the temperature in the cold storage was improved, and the temperature of the cold storage and energy consumption were measured. We concluded that the temperature u- niformity is maintained at about 0.6℃, fluctuation range is 0.05℃ ~ 0.4℃, and the temperature uniformity in middle -level is minimum; energy consumption of this cold storage is low, the annual power consumption is only 6.2kWh per cubic meter.