SET Proceedings 2978-4387 Caravel Press 10.65582/set.2014.062 2014.062 Numerical Study on Freezing Heat Transfer in an Ice Storage Ball with aluminium foams WangDengyun YangXiu ChenZhenqian zqchen@seu.edu.cn IIUSE, School of Energy and Environemnt, Southeast University, Nanjing 210096, P. R. China Science and Technology Development Center of Jiangsu Housing and Urban-Rural Construction Department, Nanjing 210036, P.R. China 25082014 13 978-1-995850-01-6 1 5 25 August 2014 © 2014 Copyright WSSET 2014

A numerical model describing freezing heat transfer process of water in an ice storage ball filled with aluminum foams was presented by considering both phase change heat transfer and natural convection. Freezing heat transfer process of water with aluminum foams was numerically simulated. To determine the enhancement effects of the aluminum foams, the simulation results were correlated against those for an ice storage ball filled with pure water. Temperature distributions and velocity fields of fluid as well as phase change interface position changed with time were simulated. The simulation results showed that freezing time in an ice storage ball with aluminum foams was greatly shorter than that without aluminum foams water only. The effect of porosity of aluminum foams and ball diameter on the liquid fraction and the time for complete freezing was also studied.

 thermal storage freezing aluminum foams ice storage ball heat transfer enhancement 25 to 28 August 2014 13th International Conference on Sustainable Energy Technologies SET2014 13 Geneva, Switzerland