Dynamic simulation of ice storage tank storage process in encapsulated ice cool storage system

Establishes a flow and heat transfer model of an ice storage tank system, and studies the influences of the coolant flow direction in the ice storage tank and the inlet position of the coolant on the cool storage process. The results show that the faster the inlet flow rate, the greater the Nusselt number, the greater the convection heat transfer coefficient between the coolant and the encapsulated ice, and the faster the outlet temperature reaching the steady state. When designing an ice storage tank, the convective heat transfer coefficient of the bottom-to-top flow is greater than that of the top-to-bottom flow, which is beneficial to heat exchange. The convection heat transfer coefficient differences of the two methods are 0.71% and 0.99% at 3 m/s and 5 m/s of the flow rate of the coolant, respectively. The advantage is more obvious with the increase of the coolant flow rate.