Introduction:
Ice Storage System uses ice for thermal energy storage. At night, the system produces ice to store the cooling, and during the day they discharge the cooling to meet peak electricity demands.
A full storage system minimizes the cost of energy to run that system by entirely shutting off the chillers during peak load hours. The capital cost is higher, as such a system requires somewhat larger chillers than those from a partial storage system, and a larger ice storage system. Ice storage systems are inexpensive enought that full storage systems are offen competetive with conventional air conditioning designs.
A partial storage system minimizes capital investment by running the chillers nearly 24 hours a day. at night, the produce ice of storage and during the day they chill water for the air conditioning system. Water circulation through the mielting ice augments their productrion. Such a system usually runs in ice-making mode for 16 to 18 hours per a day and in ice-melting mode for six hours per a day. Capital expenditures are minimized because the chillers can be just 40-50% of the size needed for a conventional design. Ice storage sufficient to store half a day’s rejected heat is usually adequate.
The advantage of Ice storage air condition system compared to conventional air condition system are as below:
Saving operation cost of the whole air condition system, benefit the owner.
Decrease the installed capacity of the whole air condition system, reduce the investment of electricity power equipment.
Provide lower temperature of water, to realize the large temperature difference water supply technology and low temperature wind supply technology
For application which has high safety requirement, the ice storage are condition can bethe emergency cold resource, and the grid power off, only small needs from the seft-owned power. It can only run ice-melting pump to provide cold to users.
Reduce volume and installed power of refrigeration unit, pumps, cooling towers.
Good dehumidification capability.
Using latent heat, the storage capacity is large but occupy small space.
Fast cooling effect.
Saving maintenance cost.
Ice storage air-condition system applicable occasions:
Shopping malls, hotels, office buildings, hospitals like commercial building.
Gymnasium, exhibition center, theaters and other large space.
Phamaceutical, food processing, beer industry, dairy products and other industrial refrigeration.
Large district cooling project.