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Cooling for the food production process: modularity with continuous service guaranteed

Reginella d'Abruzzo Dairy

Cooling for the food production process:  modularity with continuous service guaranteed

The cooling equipment at this facility is used to keep milk at a constant temperature during post-pasteurization.
This process involves the continuous cooling or production of chilled water down to 17.6 °F.
When the aging electric cooling system at this operation was near its useful life the facility’s management team was interested in more than a conventional electric replacement unit.

Cooling for the food production process:  modularity with continuous service guaranteed

Their goals were as follows:

  • Reduce operational costs due to high electric rates.
  • Reduce service costs due to frequent maintenance and multiple moving parts.
  • Use green equipment.
  • Eliminate the use of harmful HCFC refrigerants.
  • Free indoor space.
The management’s search led them to Robur’s gas absorption cooling technology. Eight Robur units could provide an operational savings approximately 40% lower than the electric units and an electric consumption lowered by 88% using natural gas as their primary energy source.

Given the above savings, a new cooling system with eight Robur gas-fired chillers, model ACF60-00 LB, were installed. These units produce chilled water down to 17.6 °F.
This chilled water is pumped and stored inside a 3,200 gallon water tank and then transferred to a plate heat exchanger where milk is cooled down to 39.2 °F.
Management at the facility attained several of their goals by utilizing Robur units:

  • Minimal mechanical parts in the refrigerant cycle: low maintenance cost.
  • Outdoor installation: more indoor space available for industrial purposes.
  • Ammonia/water absorption cooling process: green refrigerant and no HCFC’s.
  • Modular chiller configuration: staging economies, complete flexibility for capacity control, redundancy and greater reliability.
  • Single Phase requirement.

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