Dynamic modeling of encapsulated ice tank for HVAC system simulation

摘要

Dynamic system simulation facilitates the optimization of thermal storage system design and operation. The models used for system simulation should minimize solution time, accurately simulate process response, and should apply to a variety of products made by different manufacturers. This paper introduces an ice tank software model used for the thermal storage and HVAC dynamic system simulation called TSTORS. It is a time dependent model for an encapsulated ice tank. Three groups of experiments with three different systems verify that the model applies to different types of encapsulated ice tanks with different diameter ice balls. The model is also applicable to other ice tanks with such designs as non-spherical capsules or built-in metal cores in the ice balls. For such tanks, the parameters needed for the model can be obtained from data provided by the manufacturers.