Project: Super Best Supermarket / Denmark
Planning / Implementation / Main components |
Güntner AG & Co. KG |
Refrigerant |
Carbon dioxide (CO2) |
System start-up |
October 2005 |
At its Copenhagen branch, the Danish supermarket chain Super Best uses a carbon dioxide refrigeration system which operates at three different temperature levels. The cold rooms were fitted with evaporators by the company Güntner. |
|
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.Refrigeration was to be delivered without the use of F-gases, as Danish law has restricted the use of fluorinated gases in newly installed refrigeration systems to a maximum charge of 10 kg since 2007. |
Solution |
With an evaporation temperature of -28°C the carbon dioxide keeps the air in the freezer cabinets and deep-freeze chambers at -20°C. For above-freezing refrigeration in the cabinets and the cold rooms, the system supplies the evaporators with carbon dioxide at -10°C. The heat is dissipated using a condenser, supplied by Güntner, which acts as a gas cooler when ambient temperatures are high or when the system is operated in supercritical mode. |
Technical data:
Type of facility |
Cascade system |
Refrigerant |
CO2 |
Secondary refrigerant: |
CO2 |
Refrigerating capacity |
150 kW |
Refrigerating temperature |
Deep-freeze chambers/cabinets: -28ºC |
Main components: |
Evaporators, CO2 gas cooler/ condenser, 13 compressors, plate heat exchanger |
Special features / Comments: |
Its quiet design makes the gas cooler a good choice even for locations with very strict noise protection requirements, e.g. in spa towns, hospitals or nursing homes. |
Contact:
Güntner AG & Co. KG
Roland Handschuh
Hans-Güntner-Straße 2-6
82256 Fürstenfeldbruck
Phone: +49 (0)8141 242-204
Fax: +49 (0)8141 242-477
E-mail: r.handschuh@guentner.de