The Analysis And Experiment On Dynamic Ice Slurry Generation Based On Supercooled Method

Ice slurry is solid-liquid two-phase solution with huge minute ice crystals in it. And ice slurry, equipped with good flowability and giant phase change latent heat, can be used as a good kind of coolant for cold storage or large-scale and high-density cold energy transfer. So, ice slurry is able to accelerate the promotion or application of direct-contact or indirect cooling ways.Nowadays, the ways to produce ice slurry effectively are the key points on ice slurry technology. Because the commercial devices have complex structures, frequent faulties and expensive price, the defects extremely limit the application of ice slurry. So it's extraordinary necessary and urgent to develop the energy-saving, high-effective and performance steady generative modes and devices. This article review the various generative ways and analyse the relevant performance. And it's finded that supercooled way is one of the most potential modes, and it is equipped with high-effective and simply structural merits.The fundamental researches on ice crystals generating in statice supercooled water are analysed in this article. And homogeneous nucleation and heterogeneous nucleation ways of nucleation process are analysed and calculated. In general , water may freeze in tube and most likely blockage occur in the end, which make the unstable-instability of the system. This article analyse the coherent influencing factor of freezing and make the coherent experiments. It's found to control the temperature and surface appearance of supercooled wall is key point on freezing process. Based on theory mentioned above, a film of alcoholic acid varnish coat is covered on cooling wall, which can arise the smoothness and hydrophobicity and reduce the probability of freezing in tube.Based on the supercooled theory, a set of simple and feasible dynamic ice slurry generator is set up in this article, which use the pure water and tape water as the test sample and the ethylene alcohol. Uniform ice crystals are obtained in the experiments, and the generator can reach the dynamic and continuous performance goals.