ATMOsphere MAC Summit 2026 x TU Berlin
Natural refrigerants for mobile air conditioning, heat pumps, and transport refrigeration.
This event has ended — thank you to everyone who joined us in Brussels.
- Date
- 29 September 2026
- Location
- Brussels, Belgium
- Venue
- DoubleTree by Hilton Brussels City
About
The third edition of the ATMOsphere MAC Summit, held in partnership with Technische Universität Berlin's Chair of Heat Transfer and Heat Conversion, is a one-day event on natural refrigerants in mobile applications.
The programme features the state of the art in cooling and heat pumping with natural refrigerants for mobile air conditioning, heat pumps and transport refrigeration — implementation and scaling up of CO₂ and propane, technology and market trends, technology case studies, heat and work recovery, charge reduction strategies and compressor lubrication, and OEM presentations.
Attendees
OEMs from the automotive, bus, truck and train sectors; Tier 1, 2 and 3 suppliers; policy makers; R&D experts; academics; and more!
On the agenda
- Implementation and scaling up of CO₂ and propane in mobile applications including AC and heat pump in automotive, buses, trucks, and trains
- Latest research and technology trends, as well as market trends
- Technology case studies: CO₂ and propane in multiple mobile applications, and transport refrigeration
- Implementation of heat and work recovery, system controls, and safety aspects, as well as architectures for reversible AC & heat pump systems
- Refrigerant charge reduction strategies and compressor lubrication
- OEM presentations
Programme
- 10:00Session
Registration and welcome coffee
Participants are invited to the registration table to pick up their name badge upon arrival.
- 10:45Session
Welcome & introduction
Marc Chasserot, Founder & CEO, ATMOsphere
Stefan Elbel, Professor for Heat Transfer and Energy Conversion, Technische Universität Berlin (TU) Berlin
- 11:10Session
Latest TFA modelling from MAC
This presentation details new fleet-based modelling from the Hanon Systems white paper on mobile air conditioning (MAC) refrigerants. Drawing on real-world vehicle data, the analysis quantifies HFO refrigerant leakage and tracks its breakdown into trifluoroacetic acid (TFA) in rainfall, highlighting the potential of natural refrigerant technologies as alternatives.
ModeratorMarc Chasserot, ATMOsphere
Henning Freitag, Development Engineer for Natural Refrigerant Systems, Hanon Systemson behalf of the Coalition for PFAS Free Cooling and Heating
- 11:30Session
Research and technology trends
The presentation will give an exclusive, in-depth update on the latest natural refrigerants-based research and technology trends and discuss how relevant developments in adjacent industries impact the refrigerant conversion in mobile applications.
ModeratorMarc Chasserot, ATMOsphere
Stefan Elbel, Professor for Heat Transfer and Energy Conversion, Technische Universität Berlin (TU) BerlinNatRefs all the way! Lessons learned and how they apply to mobile AC / HP and transport refrigeration
- 11:55Session
Market trends
This session will explore how evolving regulations, environmental concerns, and technology trends are shaping refrigerant choices in light vehicles, offering a market outlook that highlights key challenges and opportunities for manufacturers.
ModeratorMarc Chasserot, ATMOsphere
Matteo Martini, Associate Director, Mobility GlobalMarket dynamics of air conditioning refrigerants
- 12:30
ATMO Networking lunch
- 13:30Session
OEM & operator presentations
Leading OEMs and operators will share their experiences using different types of natural refrigerant technologies, including benefits, challenges and future plans.
ModeratorStefan Elbel, Technische Universität Berlin (TU) Berlin
Felix Nowak-Walenta, Thermal Management Test Engineer, Volkswagen; & Carsten Wachsmuth, Thermal Management of EVs, Research and Development division, Volkswagen6 Years of automotive R744, Bringing sustainable cooling into the subcompact segment
Maximilian Klein, Climate Attribute Engineer, Global Thermal Systems & Mounts, Ford-WerkePerformance evaluations with R290
Mark Aalbers, Senior System Engineer, Nederlandse Spoorwegen – Dutch RailroadsThe road to natural refrigerants for a small train operator
Sunny Kumar, Senior Manager – Climate Control, Tata Motors Passenger Vehicles; & Sangeet Kapoor, National Project Coordinator — India, UNIDOPilot project of R290 refrigerant substitution technology for electric vehicles
- 15:00
Networking break
Coffee, tea and light snacks will be served in the sponsor exhibition area.
- 15:30Session
Technology case studies
Case studies presented by leading suppliers, showcasing the integration and expansion of CO₂ and propane across various applications, such as air conditioning in automotive, buses, trucks and trains.
ModeratorThomas Meyer, Technische Universität Berlin
Roman Heckt, Global Chief Engineer for natural refrigerant systems, HANON SystemsAvailability of PFAS-free alternatives for MAC and heat pump systems in passenger cars with various future-relevant powertrains
Zhou Yi, Chief Technology Officer, Shanghai Highly Electrical AppliancesHighly Group: The evolution of natural refrigerant compressors & thermal management systems for Evs
Andy Musser, Chief Operating Officer, Creative Thermal SolutionsKey considerations to maximize performance in natural refrigerant mobile systems via design and experimental evaluation
Adrian Muresan, Account Manager — Eastern Europe, Indochina and Oceania, Dorin; & Jan Pitz, Engineer, testing and validation department, KonvektaEconomiser in mobile air conditioning
Rody El Chammas, Director heat pump module, Valeo Power; & David Fernandez, Product Marketing Director for the thermal cluster, Valeo PowerThe PFAS-free pivot: Valeo’s development roadmap for R744 and R290 mobile thermal systems
Yevgeniy Beygel, Director, Global Engineering Systems and Sustainability, Bergstrom48-volt electric compressor for R290 mobile systems
Marcel Knipps, R&D Engineer, Eberspächer SütrakSafe and efficient use of R-290 on buses
Antonio Rossetti, Researcher, Construction Technologies Institute, Italian National Research Council (CNR)Demonstration of R744 transport refrigeration unit for e-LCV
- 17:45Session
Summary & conclusions
Summary of the two-day conference with key takeaways by Marc Chasserot, Founder & CEO, ATMOsphere, and Stefan Elbel, Professor & Head of the Chair of Heat Transfer and Heat Conversion at TU Berlin.
- 18:00Session
Networking drinks
Participants are invited to join us for some networking drinks at the Grand Cafe 1909 – Bar, located within the conference venue.
Speakers
Sponsors
Platinum
Silver
Bronze
Partner
Media
Venue
Announcements
New speaker and partnership!
Preparations are ramping up for ATMOsphere MAC Summit 2026 x TU Berlin in Brussels, and we have several exciting updates to share!
Read more
Have you registered yet?
Mark your calendar: ATMOsphere MAC Summit 2026 x TU Berlin takes place in Brussels on 29 September. The event brings together OEMs, suppliers, policy makers, researchers, and other industry experts driving natural refrigerant innovation for mobile air conditioning and heat pumps. This is your opportunity to connect with leading voices in the industry and gain insights into the latest…
Read more
The line-up keeps growing
Next round of speakers confirmed!We are excited to reveal the latest experts joining the programme for ATMOsphere MAC Summit 2026 x TU Berlin in Brussels this September. Technology case studiesSee below the new announced experts who will showcase the integration and expansion of natural refrigerants across various mobile applications: Technology case studies See below the new announced experts who will showcase…
Read more
New speakers announced
We are thrilled to reveal the next round of experts joining us in Brussels for ATMOsphere MAC Summit 2026 x TU Berlin. A warm welcome to them! OEM presentations In this session, OEMs will share more about their ongoing work with natural refrigerants, including benefits, challenges and future plans: Santosh Venu, Deputy General Manager, Tata Motors Passenger Vehicles & Sangeet Kapoor, National Project…
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Meet our platinum sponsor
As platinum sponsor of ATMOsphere MAC Summit x TU Berlin, Hanon Systems is helping drive the conversations shaping the future of thermal management and mobile air conditioning. Hanon Systems, founded in 1986, is a global leader in thermal energy management solutions. In January 2025, it became a subsidiary of Hankook & Company Group. Its offering includes a wide…
Read moreWelcome our first speakers!
We’re kicking off the ATMOsphere MAC Summit 2026 x TU Berlin speaker lineup with our first confirmed names joining us in Brussels on 29 September. Technology trends The presentation will set the stage for an exclusive deep dive into the latest advancements and technology trends in natural refrigerant-based solutions across mobile and transport refrigeration applications. Market trends…
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Last call for case study!
Don’t miss your chance to take the stage in Brussels. The call for case studies for ATMOsphere MAC Summit x TU Berlin closes soon. Submissions will be open until 5 June. We invite you to share your technical expertise on natural refrigerants in mobile applications and transport refrigeration, spanning cars, buses, trucks, and trains. We welcome case study submissions…
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Registration open ! Early Bird offer
Registration for ATMOsphere MAC Summit x TU Berlin is open! Take full advantage of our EARLY BIRD offer and save 150€ on your pass, joining us and key industry stakeholders on 29 September in Brussels. The programme will feature presentations on the state of the art in cooling and heat pumping with natural refrigerants for mobile applications and transport…
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Call for case studies
You’re invited to submit your technology case studies showcasing natural refrigerants for ATMOsphere MAC Summit 2026 x TU Berlin! We are looking for case studies by OEMs and suppliers from the automotive, bus, truck and train sectors. Ensure that your submission is relevant to the market being addressed by the conference, and includes real-life applications. …
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Save the date!
We are delighted to announce the third edition of the ATMOsphere MAC Summit, held in partnership with Technische Universität Berlin’s Chair of Heat Transfer and Heat Conversion. Building on the strong technical foundation of previous editions and maintaining its multi‑segment focus, this year will be a one-day event taking place on 29 September in Brussels. By bringing the summit…
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