ATMOsphere, publisher of, has announced three new CO2 (R744) case studies, as well as three end-user presentations, for the upcoming ATMOsphere (ATMO) Europe Summit 2022, taking place in person in Brussels, Belgium, November 15–16.

The three end users are Olaf Schulze, Vice President, Director Energy Management/Real Estate Sustainability for METRO Properties Holding GmbH; David Schalenbourg, Director Delhaize Technics, for Delhaize Belgium, a division of Ahold Delhaize; and Dr. Aikaterini Boulamanti, Energy Specialist, Coop Switzerland.

Schulze will discuss METRO’s F-Gas-Exit Program, including an update on its rollout of transcritical CO2 systems with ejectors and heat recovery. Schalenbourg will address Delhaize’s integrated transcritical CO2 systems, which include refrigeration, AC and heat reclaim for heating and hot water. Boulamanti will explain the approach Coop Switzerland is taking to refrigeration, which includes transcritical CO2 systems.

In addition, the three CO2 case studies join with nine other CO2-related case studies to be discussed at ATMO Europe. The 12 case studies cover CO2 refrigeration, heat pumps, air-conditioning and transport.

This year’s summit, the 12th edition of ATMO Europe, will be held at the Bedford Hotel & Congress Centre in the Brussels city center.

In addition to industry case studies and end-user experiences, the two-day program will cover policy developments – particularly the EU F-gas Regulation and the REACH (Registration, Evaluation, Authorisation and Restriction of Chemicals) regulation of PFAS – market updates, the health and environmental impact of f-gas refrigerants, training and more. There will also be networking drinks on the evening of November 15.

Those interested in attending the summit can register for tickets here.

CO2 case study details

The new CO2 case studies include the following:

  • Andrea Cusin, Technical Key Account Manager for Arneg, will present on “HVAC & Refrigeration system synergic sharing.”   This case study will look at the integration of refrigeration system with HVAC, which is gaining attention because of the need to increase the efficiency of buildings, coupled with the restrictions of the EU’s F-gas Regulation. This trend is helped by the application of CO2, which grants a high discharge temperature and an efficient match between hydronic heating systems. In the integrated system, the cooling energy required during summer season is supplied by a dedicated refrigeration system added to the compressor rack. During winter season the heat rejected by the system, supported by with other sources if needed, provides complete heating of the building. Meanwhile, it is also possible to achieve the production of hot water for tap water.
  • Benjamin Tissot, Cold Chain Key-Account Manager for Panasonic, will discuss “CO2 condensing units at the Vibra Hotels chain.” Vibra Hotels are one of the leading hotel chains in the Balearic Islands, off the coast of eastern Spain, with 37 hotels, 35 in Ibiza Island and two in Majorca Island. The chain chose Panasonic CO2 condensing units, in line with its environmental strategy to decrease energy consumption and operational cost. Nine CO2 condensing units were installed for refrigeration at two facilities in Ibiza Island. Since commissioning, the hotels have not had any problems with the Panasonic systems.
  • Sergio Bridda, Refrigeration Systems Sales Expert – Technical Sales, HVAC-R Solutions, for Eliwell Controls, a division of Schneider Electric, will speak on “A path over natural refrigerants from commercial refrigeration to HVAC. More CO2 for a better future.” The presentation will examine Eliwell’s promotion of natural refrigerant solutions in commercial applications, with the introduction of DOMINO CO2 controllers in 2016, cases with DOMINO technology for supermarket refrigeration in Europe and China, DOMINO ZERO algorithms for the HVAC&R integrated compressor pack, and the last evolution of the DOMINO platform for full CO2 heat pumps used in shopping malls. Through a series of cases, Bridda will explore results in sustainability, efficiency and collaboration with OEM and installers for the continuous improvement and evolution of CO2 systems. In addition, the presentation will refer to cases explored at previous ATMO events (in Switzerland with Biaggini Frigoriferi, and China with Panasonic) plus more recent examples with HVAC integration in Germany and a European heat pump OEM.

Want to find out more, or have something to say about this story? Join the ATMO Connect network to meet and engage with like-minded stakeholders in the clean cooling and natural refrigerant arena.