Ice slurry systems are used for applications in comfort cooling (HVAC), food processing and preservation. The latent heat is utilized in applications by freezing or melting. Freezing of (sea)water can also be used for extracting heat that can be used for district heating in combination with heat pumps. This concept found to be effective in Nordic countries and some region of USA.

A difficulty of   ice slurry is however the tendency of  ice crystals to adhere to

cold heat exchanger walls on tube side, also referred to as ice-scaling. In order to be effective, it requires a mechanism to remove the ice crystals from the tube walls for proper and constant heat transfer.

With the self-cleaning heat exchanger technology this ice-scaling can be prevented by applying a fluidized bed of cleaning particles in the heat exchanger. Like with other types of fouling or scaling, the cleaning particles remove the ice layer that starts to develop on the tube wall and keep the heat transfer area clean. We apply the concept where rate of removal is higher than rate of deposition and hence no fouling occurs.

The possible applications in this area are:

  • District heating (extracting heat by cooling or freezing of surface water)
  • Ice Slurry for food processing and preservation
  • Comfort Cooling System (Air conditioner system)
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