摘要
通过温度场数值分析研究了冷媒温度对联络通道冻结效果的影响。分析结果显示:实测与数值模拟得出的温度曲线走向相同,降温速率相近,数值模拟具有较高的可信性;使用新型冷媒冻结时,各侧冻结壁厚度达到设计要求的时间较使用传统冷媒冻结时缩短了3~20 d,平均温度达到设计要求的时间较使用传统冷媒冻结时缩短了5~13 d。
Through the numerical analysis of temperature field,the influence of refrigerant temperature on the freezing effect of cross passage is studied.The results show that the measured temperature curve and the numerical simulation curve have the same trend,and the cooling rate is similar,and the numerical simulation has high credibility.When the new type refrigerant is used for freezing,the time for the thickness of freezing wall on each side to meet the design requirements is 3~20 days shorter than that when the traditional refrigerant is used for freezing,and the time for the average temperature to meet the design requirements is 5~13 days shorter than that when the traditional refrigerant is used for freezing.
作者
李嘉晨
张勇
LI Jiachen;ZHANG Yong(School of Mechanics and Civil Engineering,China University of Mining and Technology,Xuzhou Jiangsu 221116,China)
出处
《盐城工学院学报（自然科学版）》
CAS
2022年第1期72-78,共7页
Journal of Yancheng Institute of Technology:Natural Science Edition
关键词
新型冷媒
人工冻结法
联络通道
温度场
new type refrigerant
artificial freezing method
cross passage
temperature field
