GEA screw package for high-pressure applications
GERMANY: GEA has launched a screw compressor package series for high-pressure applications.
The new GEA Grasso SP1 HP is suited either to heat pumps using ammonia or for low temperature cooling with CO2.
The high-pressure series is based on 20 GEA Grasso compressor models for NH3 heat pumps and 17 models for CO2. Heating capacities with ammonia cover a range from approximately 600kW to 9,500kW (heat sink supply temperature 70°C at 30°C evaporation and 10K subcooling), CO2 refrigeration capacities range from 400kW to over 4,000kW (at -50/-5°C).
The GEA screw compressors are suitable for high differential pressures allowing NH3 condensing temperatures of up to +85°C, as well as combined cooling and heating operations. CO2 cooling is possible as low as -54°C. The maximum (subcritical) condensing temperature level is +10°C allowing operation modes for defrosting processes temperatures above 0°C.