化学工程2019，Vol.47Issue(3)：12-18,7.DOI:10.3969/j.issn.1005-9954.2019.03.003
氯化钙/硼砂改性真空闪蒸制冰实验研究
Experimental study on CaCl2 /borax modification of vacuum flash ice-making
摘要
Abstract
Calcium chloride (CaCl2) and borax were used as the additive and nucleating agent respectively in distilled water to study the influence of soluble salt CaCl2 /borax on vacuum flash ice-making under the adsorption condition. The experimental results show that the addition of CaCl2 can absorb the partial flash vapor during flash process and shorten liquid cooling time; with CaCl2 mass fraction increasing,both supercooling degree and ice packing factor (IPF) are gradually decrease,and flash rate shows a nonlinear change. It suggestes that the added mass fraction of CaCl2 is 1％. In this case,the supercooling degree,IPF and flash rate reached 2.08℃,24.10％ and 17％,respectively. With the borax mass fraction increasing,CaCl2-borax composite solution shows a slight decrease trend in supercooling degree. With the initial temperature decreasing,supercooling degree gradually decreases,and IPF gradually increases. The lower initial temperature is more favorable for ice-making.关键词
真空制冰/氯化钙/硼砂/过冷度/含冰率/初始温度Key words
vacuum ice-making/calcium chloride/borax/supercooling degree/ice packing factor/initial temperature分类
能源科技引用本文复制引用
郑钦月,章学来,贾潇雅,王章飞,甘伟..氯化钙/硼砂改性真空闪蒸制冰实验研究[J].化学工程,2019,47(3):12-18,7.基金项目
国家自然科学基金资助项目(50976064,51376115) （50976064,51376115）
国家重点研发计划项目(2018YFD0401305) （2018YFD0401305）
