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Refrigeration / Process Cooling

What it is

Like air conditioning, refrigeration and process cooling uses refrigerant vapour expansion/compression (RVEC) for specialized purposes.  Refrigeration allows for low temperature cooling that is generally used for long term storage of food perishables or in ice manufacturing.  Process cooling provides solutions where cooling is required at a specific location in manufacturing or some other form of industrial process.

How it works

Refrigeration is typically direct expansion (DX), including an evaporator & fans system inside an insulated box or display centre, with a remotely located compressor/condenser.  Most fans run continuously to maintain a consistent temperature throughout the controller container, while the refrigeration process operates intermittently to control the required amount of heat rejection.  Refrigeration systems are readily available as commercial systems in sizes to suit the need, and includes a defrost control system that eliminates the need to transfer stored articles for manual defrost maintenance.

Design of process cooling systems is largely dependent on use. Hydronic systems use chilled water, glycol, high-temperature brines, or other solutions depending upon the required temperature within the process. The refrigerant is chilled then circulated to the point of use. RVEC are now commonly used in newer systems, allowing the refrigerant to circulate multiple times through the system. In comparison many older systems use single-pass (potable) water where the byproduct of the process (water) is flushed down the drain.  Many building owners elect to replace these older systems because of their wastefulness- both in terms of money spent on unnecessary utilities and the quantity of water used, which is considered environmentally damaging.

Benefits
  • Split refrigeration systems are low cost commercially available systems whose evaporator piping can be customized to suit virtually any container
  • Defrost control are integrated in commercial refrigeration systems
  • Process cooling using RVEC is more cost effective than single-pass water systems, which will also mitigate continuing increases in the cost of potable water

Contact NRG Management

with any questions you may have.

1-877-674-6468
Send us an email
Fax: 204-788-4161

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