Heating and cooling for land-based aquaculture

Smolt and post-smolt facilities, including recirculating aquaculture systems (RAS), need water held at the temperature set in the production plan as inlet temperatures change through the year. Heat removed during cooling can be used elsewhere in the facility.

Typical duties

  1. Maintain the target water temperature

    Cooling when the inlet water is too warm and heating when it is too cold, from the same system.

  2. Use available heat

    Heat from the fish-water circuit or an external source can be used in another part of the facility or for building heating.

  3. Controls, alarms and documentation

    Controls, alarm handling and documentation for permit applications and review by the authorities.

  4. Wellboats

    Seawater cooling can cool the water around live fish. See the wellboat section below.

Technical details

Sizes and parallel modules
Chiller/Heat is sized to water flow and setpoint from CH_S to CH_XL; CH_XL combines three modules in parallel for larger loads.
Plate heat exchangers
Chiller/Heat uses Alfa Laval plate heat exchangers, AXP 140 bar and CBXP 85 bar.

Wellboats: cooling water for live fish

On a wellboat the job is the water around live fish. On trips longer than two hours, oxygen and pH must be measured and logged, and temperature monitored. The chilling itself is a seawater cooling duty.

Source: Norwegian Food Safety Authority (Mattilsynet), 17 July 2024

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Systems

Process cooling and heating

CO2PRO Chiller/Heat

Cooling and useful heat from one machine, sized to your flow and setpoint. Five sizes, CH_S to CH_XL.

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Data needed for sizing

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