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| Subcooled ice |
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Provision of large volumes of low-temperature cooling water
for process lines for food or chemicals with high load variations.
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 Chilled water for sterilization and storage in milk beverage factories Milk, soy milk, soft drinks, sake, beer, wine, etc.
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Chilled water for product cooling in food factories
Noodles, tofu, brews, bread, vegetables, fresh fish, etc.
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Process cooling and heat-storage air-conditioning/heating for factories
Chemical products, chemicals, low-temperature air-conditioning of clean rooms and food plants. |
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This subcooling system is a dynamic ice system that produces ice in sherbet form by a subcooling ice making unit. The ice produced is stored in heat storage tanks.
The system eliminates the thermal resistance of ice in ice production, offering high efficiency compared to conventional static (external melting) systems.
The use of sherbet ice ensures excellent melting properties and allows constant extraction of chilled water, even under high loads. |
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High-efficiency ice-making system
Operates continuously at high efficiency from the start of heat storage to completion.
(Ice-making COP = 4.2)
In contrast to conventional static ice-making systems, capacity does not decrease while producing ice.
Stable chilled (0 to 1°C) water supply system
The temperature of the extracted chilled water does not rise, even under high thermal loads.
The system eliminates the problem of rising water temperatures associated with conventional static ice systems when stored ice volume declines as load increases.
Environmentally-friendly system
A natural refrigerant (ODP = 0, GWP < 1) is utilized. Pure water is used as the heat storage medium, eliminating pollution concerns.
Uses minimal volumes of refrigerant (just 20 kg to produce 46 tons of ice).
Easy installation
A unique water-submerged unfreezing system enables positioning of the subcooling ice-making unit and ice thermal storage tank separately or together, as desired.
Select the ice thermal storage tank size and shape (cylindrical or rectangular) best suited for the installation site.
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-Ice thermal storage operation is 20% more energy efficient than conventional systems. (Mayekawa data)
-The system provides a constant supply of water chilled to below 1°C to maintain product quality.
-The ice thermal storage system enables use of cheap night-time electricity.
-The installation can be designed to fit the actual space available. |
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Ice particles are melted and removed in the pre-heater, sub-cooler, and ice particle separator from the chilled water in the ice thermal storage tank before the water is cooled to between -1.5°C and -2°C in the subcooling ice-making unit sub-cooler.
The subcooled water is then transformed to dynamic ice in the subcooling releasing unit, and ice is stored until the ice thermal storage tank is full. Full thermal storage and follow-up operations can be arranged as required. The chilled water can be used in plate heat exchangers or used directly in production processes or for circulation. |
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