Abstract
This study describes water freezing phenomena around heat transfer tubes mounted in ice thermal energy storage systems. In this report, we perform the numerical analysis for predicting the water freezing by using commercial spreadsheet software. The freezing around the heat transfer tubes are calculated by solving the 2-dimentional heat conduction equation and simulated by using the enthalpy method. It is found that the developed spreadsheet can predict the amount of the generated ice accurately when natural convection around the tubes is inhibited by the dimensions of the vessel.
