Project: Frigosuisse Deep-Freeze Warehouse, Switzerland
| Planning / Implementation / Main components: |
SSP Kälteplaner AG Johnson Controls Systems & Service GmbH |
| Refrigerant: | Ammonia (NH3) |
| System start-up: | June 2007 |
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The refrigerated and frozen goods logistics company Frigosuisse supplemented its three existing deep-freeze warehouses in Möhlin, Switzerland with the addition of a fourth. To cool the new warehouse, the refrigeration specialists from the engineering firm SSP Kälteplaner AG designed a pumped ammonia system with Eco mode. |
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| Demands: |
The new building, which has a volume of approximately 65,000 m³, was to be fitted with an economic, environmentally friendly system to maintain a temperature of -28°C in the deep-freeze warehouse, and of -10°C in the adjacent automatic picking hall. |
| Solution: |
SSP Kälteplaner AG was commissioned to draft a refrigeration system to meet these requirements. The engineering firm designed a plant which uses ammonia in a direct evaporation, multiple circulation system. Johnson Controls installed the system, which is charged with 2,100 kg of ammonia and has a peak performance of 540 kW, on the ground. |
Technical data:
| Type of facility | Two-stage refrigeration facilityDirect evaporation pumped ammonia system |
| Refrigerant: | NH3 |
| Refrigerant volume | 2,100 kg |
| Refrigerant capacity |
540 kW |
| Refrigerating temperature |
-40 ºC |
| Main components | Screw compressor, evaporative condenser, separator, economizer, ammonia pumps and air coolers |
| Special features / Comments: |
A so-called “cold pool” is formed due to the vertical distribution of the cold air by the air coolers. |
Contact:
SSP Kälteplaner AG
Rudolf Starkl
Museggstr. 8
CH-6004 Lucerne
Phone: +41 (0)62 388 0351
Fax: +41 (0)41 410 5243
E-mail: rudolf.starkl@kaelteplaner.ch
