Abstract
The dynamic-type ice storage system utilizing super cooling water has been developed and introduced for air conditioning in building and district heating and cooling. The stored ice slurry in ice storage tank has good characteristics to supply low-temperature water on ice melting processes for the food industry. However, it is necessary to develop additional technologies for operation control. In this paper, ice melting characteristics are evaluated using simulation for a prediction of the withdrawn water temperature from ice storage tank, and control technologies are explained and evaluated by small-sized and actual-sided experimental equipment. As the results, it was confirmed that this system be able to supply cold water of approximately 1.0 C under the simultaneous operation of storing and melting ice, and control technologies about full storage detection based on the height of ice layer, and methods of supplying tap water into ice storage tank based on the measured porosity of ice layer are applicable to system operation.
