The Research of Ice-Water Phase Change and Heat Transfer in Natural Environment of Northern Winter in China

摘要

It is a problem of the ice with transient heat of the solidification and melting which usually is a part of "phase change" or "moving boundary". The paper is a research about measurement and analysis of the icing in the rectangular tank outdoor under natural conditions, the paper adopts the method which combines theoretical analysis with experimental verification to establish a mathematical model of the unstable-state and dynamic cool storage in one-dimensional rectangular coordinate system. Conclusion is drawn that the thickness of water icing in the natural conditions according to the change of the time and environmental condition, which provide a theoretical basis to determine the best program of the frozen, the frozen time and the best size of the frozen container. It is helpful for the further research of the icing store in the winter ice and make the best of naturalresources in the north winter.