DUESSELDORF, Germany, 19 May 2020: Future-proof, reliable, and cost- and energy-efficient – these were the words GEA used in a Press release to describe its new generation of subcritical compressors, GEA Bock HGX44e CO_2. The use of the natural refrigerant, carbon dioxide (R744) sets a milestone, especially for industrial low-temperature applications in cold stores and in the food industry, the company added.

The main advantage for the user, the company said, is a minimum six per cent higher CO₂ compressor efficiency compared to customary compressors on the market. “This allows operating costs to be significantly reduced,” said Manuel Fröschle, Product Manager Natural Refrigerants, GEA Bock GmbH, in Frickenhausen. “Our new series, which has been successfully launched on the market, scores points with customers, above all, through improved process efficiency with minimized energy costs, while at the same time expanding the range of applications and uses. And all this with the highest reliability, thanks to our proven GEA Bock CO₂ compressor design.” The world premiere with simultaneous market launch of the subcritical CO₂ compressors took place at GEA Bock’s trade fair appearance at EuroShop 2020, in February in Düsseldorf, the company said.

In addition to the significantly higher compressor efficiency, the new HGX44e CO₂ series, with its four model variants, sets further standards for subcritical CO₂ compressors, the company claimed. These include extended operating conditions – for example, optimised hot gas defrosting and an extended frequency and temperature range with evaporating temperatures from -50 to -15 °C and condensing temperatures up to +15 °C, adapted maximum permissible operating pressure (LP/HP 30/55 bar) and a performance spectrum with swept volumes from 27.7 to 49.2 m³/h (50 Hz) and corresponding refrigerating capacity from 51 to 90 kW, the company said. In addition, the refrigeration and air-conditioning specialists from Frickenhausen, the company claimed, have optimised the running characteristics of the new compressors. Minimised noise, vibrations and pulsations, the company said, ensure a high level of user comfort as well as a high level of system safety and reliability with minimised maintenance requirements.

“Our HGX44e compressors for the natural refrigerant CO₂ offer planners, investors and operators clever solutions for industrial low-temperature applications, where functionality, cost-effectiveness and climate protection go hand in hand,” Fröschle said. “We call this The °Clever Art of Cooling.”