中国电机工程学报2024，Vol.44Issue(15)：6057-6064,中插18,9.DOI:10.13334/j.0258-8013.pcsee.230873
盘管式冰蓄冷空调技术蓄冰过程理论与实验研究
Theoretical and Experimental Research on Ice Storage Process of Coiled Ice Storage Air Conditioning Technology
摘要
Abstract
Ice storage cooling air conditioning systems play an important role in power grid peaking and improving the economics of cooling.In this paper,through the study of the ice storage process of coil-type ice storage system,it is found that the ice storage process contains two distinct phases:In the first phase,from 10.0 to 4.0℃,the density of water increases as the temperature decreases,and the cold water at 4.0℃rapidly gathers at the bottom of the storage unit and gradually fills the whole water area.In the second phase,from 4.0 to 0℃,the density of water decreases as the temperature decreases.In the first stage,the ice layer first appears on the lower surface of the heat exchanger tube;in the later stage,the ice layer starts to be generated on the upper surface of the heat exchanger tube as more low-temperature water is gathered above.In this experiment,upon completion of the 100-minute ice storage process,the thickness of the ice layer on the upper and lower surfaces of the heat exchange tube reaches 8.56 mm.Afterwards,the thickness of the ice layer on the upper surface gradually exceeds that on the lower surface.This paper reveals the influence of natural convection inside the ice storage unit and the reversal of water density at 4.0℃on the icing process,which is of guidance value to the optimal design and operation control of the coil-type ice storage system.关键词
储能/电网调峰/蓄冷空调/盘管/蓄冰/4.0℃/密度逆转Key words
energy storage/power grid peak regulation/cold storage air conditioner/coils/ice storage/4.0℃/density reversal分类
能源科技引用本文复制引用
常春,徐啸宇,郭鑫鑫,赵明智..盘管式冰蓄冷空调技术蓄冰过程理论与实验研究[J].中国电机工程学报,2024,44(15):6057-6064,中插18,9.基金项目
内蒙古自治区科技成果转化专项资金项目(2020CG0066). The Fund of S&T Achievements Transformation Project of Inner Mongolia Autonomous Region in China(2020CG0066). （2020CG0066）
