Industrial Refrigeration

The North Haven Distribution Center in Conneticut is a facility consisting of a 500,000 sq-ft grocery warehouse and a 265,000 sq-ft meat warehouse. The North Haven Distribution Center is one of two refrigerated facilities utilized by Stop & Shop for the storage and distribution of products to almost 200 stores. Since many of these products must remain refrigerated, Stop & Shop operates a refrigeration system using anhydrous ammonia as the refrigerant. The Stop & Shop refrigeration system operates in a sequential mode based on the heat load. The heat load is determined by the material being moved into the warehouse and by the outside air temperature. As such, the process control parameters of greatest consequences are the temperature and pressure readings throughout the system.
The Readville Distribution Center in Massachusetts is a facility that consists of a 400,000 sq-ft grocery warehouse, a 200,000 sq-ft produce warehouse and a 100,000 sq-ft dairy commissary. It is one of two refrigerated facilities utilized by Stop & Shop for the storage and distribution of products to almost 200 stores. Since many of these products must remain refrigerated, Stop & Shop operates a single-stage refrigeration system using anhydrous ammonia as the refrigerant.

The Giant Distribution Centre in Carlisle, PA (owned by Ahold) operates on a two-temperature, single-stage, anhydrous ammonia refrigeration system. This refrigeration system is a liquid re-circulation system. Rotary screw and reciprocating compressors are used in the refrigeration system.
This facility was expanded to its current size in November 1999. In 2006, 4 additional banana rooms were added to the facility. The new banana rooms tie into the system and require the addition of 700 pounds of ammonia to maintain the manufacturers recommended safe operating pressure. The center has a total inventory of approximately 26,903 pounds of anhydrous ammonia in its refrigeration system.