Abstract
The development and validation of a mathematical model of an ice storage tank with heat exchangers that can be de-iced is presented. The ice storage model was developed for heating applications using combined solar thermal and heat pump systems. The influence of a growing ice layer on the performance of flat plate and coil type heat exchangers was theoretically analyzed. Experiments were conducted with a laboratory scale ice storage of 1 m3. Several operating modes were investigated in order to validate the model under all conditions of interest. The model predicted successfully most of the operating modes for the main variables such as heat exchanger outlet temperature and energy transferred, mass of ice produced and melted, and time of ice formation. However, the melting of ice showed a great dependency on uncertain model parameters used for the calculation.
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