中南大学学报（自然科学版）2017，Vol.48Issue(5)：1376-1383,8.DOI:10.11817/j.issn.1672-7207.2017.05.033
搅拌对冰浆存储冰晶粒径演化的影响
Effects of stirring action on ice crystal size evolution during storage
摘要
Abstract
In order to study the evolution of ice crystal size with stirring action during the process of ice slurry storage, the multiphase flow model and the population balance model (PBM) were coupled to simulate the evolution of ice crystal size based on the ice crystal event nucleus models. The ice crystal event nuclear model parameters were modified based on the comparison of numerical results and experiment results. The effects of the stirring action on the evolution of ice crystal size were studied by analyzing the effect of the blade size and position of single screw, the blade spacing of twin screw on the volume fraction distribution of ice crystal, number density of ice crystal size and average particle size. The results show that the blade size has influence on volume fraction distribution of ice crystal, number density of ice crystal size and average particle size, and the blade position and spacing have significant influence on volume fraction distribution. Twin screw can make the distribution of ice crystal more uniform in the storage tank, and can be more effective to inhibit the growth of ice crystal size.关键词
储能/冰浆/多相流模型/数群平衡模型Key words
energy storage/ice slurry/multiphase flow model/population balance model分类
通用工业技术引用本文复制引用
唐艺芳,刘志强,王肖肖,康威,张静雅..搅拌对冰浆存储冰晶粒径演化的影响[J].中南大学学报（自然科学版）,2017,48(5):1376-1383,8.基金项目
国家自然科学基金资助项目(51376198) （51376198）
湖南省自然科学基金资助项目(11JJ22029) (Project(51376198) supported by the National Natural Science Foundation of China （11JJ22029）
Project(11JJ22029) supported by the Natural Science Foundation of Hunan Province) （11JJ22029）
