How Supermarkets Can Reduce Carbon Footprint

Danfoss has cooperated with a discount supermarket chain in Denmark to design a reliable and energy effective CO2 transcritical refrigeration system.

The system, which has been in operation since 2007, is designed as a transcritical CO2 booster system with gas bypass from the intermediate pressure receiver to the suction side of the high pressure compressors.

Measurements in the laboratory as well as in the field where the energy consumption is compared with other similar size systems working under similar conditions.

The concept with booster and gas bypass has proven to be very efficient and reliable. And the energy consumption of the system is lower than that of comparable R404A systems.