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  • Saving Energy in Frost Free Storage Facilities

    Saving Energy in Frost Free Cold Storage Facilities

    Frost and ice formation in cold storage areas are a major concern since they can have an impact on energy consumption, product quality and worker safety. Alfa Laval Kathabar systems provide temperature and humidity control with several benefits:

    • Reduced energy use

    • Product integrity

    • Employee safety

    • Reduced ammonia charge

    Frost Free Cold Storage

    How it works

    Frost and icing occur when warm moisture laden air is allowed into the refrigerated space.  When the warmer, more humid air cools it cannot carry as much water.  The water condenses and forms frost or ice on product, floors, ceilings and conveyors. Alfa Laval Kathabar systems use an environmentally safe liquid desiccant to dehumidify the air that circulates through a cold storage warehouse.  By removing water from the air and keeping the humidity levels below the dew point, frost cannot form.  No frost means no required defrost cycle.  In addition to dehumidification, Alfa Laval Kathabar can also cool the air to -30°F if necessary. Using Alfa Laval Kathabar as a secondary refrigerant will reduce the ammonia charge needed in your cooling system.  Employee safety is improved because the ammonia charge is isolated to a rooftop/outdoor location and is kept out of the cooling space.

    Energy savings

    Alfa Laval Kathabar eliminates the need for energy intensive defrost cycles.  Refrigerant efficiency is maintained because ice never forms on fan coils and other cooling system components.  Alfa Laval Kathabar systems are designed to use heat created by the system’s compressor to power the desiccant regeneration process.  The use of this ‘waste’ heat source cuts operating costs.

    Employee safety--product quality

    Icy floors and stairs are a constant concern for cold storage facility operators.  Each time an access door to the warehouse is opened, more humid air is introduced into the conditioned space.  This can lead to ice forming on floor surfaces and product and can cause injuries.  Alfa Laval Kathabar removes the humidity before it can ice-up floors and ceilings, reducing a major source of warehouse worker injuries. A Alfa Laval Kathabar system also acts as an effective air wash, removing up to 94% of all airborne pathogens such as mold, bacteria and viruses.  This added value is not found in traditional refrigeration or dry desiccant systems.  Alfa Laval Kathabar's ability to maintain an exact indoor environment also prevents product spoilage caused by fluctuations in temperature and humidity.