载冷剂的流动特性及在水产品贮运保鲜中的应用研究进展

载冷剂是一种传递冷量的中间媒介，利用载冷剂可以提高冷冻效率。文章介绍了载冷剂的分类和特征，主要对载冷剂的流动特性进行了论述，讨论了载冷剂流动过程中的表观黏度变化和流动阻力特性。此外，还论述了不同类型载冷剂在水产品贮运保鲜系统中的应用，其中非相变载冷剂主要应用于食品浸渍冻结，水产品贮藏运输环节中的冷库和冷藏车主要应用了相变材料载冷剂，并对载冷剂未来的发展方向进行了展望。

Research progress on the flow characteristics of secondary refrigerants and application progress in aquatic products storage and preservation system

The secondary refrigerant is an intermediate medium for transferring cold capacity, which can improved refrigeration efficiency. In this paper, the classification and characteristics of secondary refrigerants are introduced, and discusses the flow characteristics of secondary refrigerants and the apparent viscosity changes and flow resistance characteristics during the flow of secondary refrigerants. In addition, the application of different types of secondary refrigerants in aquatic product preservation and storage system is also discussed, among which non-phase change secondary refrigerant is mainly used in food impregnation and freezing. The phase change material refrigerant is mainly used in cold storage and refrigerating truck of aquatic product storage and transportation, and the future development direction of secondary refrigerant is prospected.