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ATMOsphere MAC Summit 2025 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 Berlin.

Date
23–24 September 2025
Location
Berlin, Germany
Venue
Technische Universität Berlin

About

ATMOsphere MAC Summit is a joint event between ATMOsphere and Technische Universität Berlin's Chair of Heat Transfer and Heat Conversion. The programme featured presentations on state of the art in cooling and heat pumping with natural refrigerants for the mobile application and transport refrigeration, as well as optimal thermal management for EVs with natural refrigerants. There was also a parallel technology case study session on transport refrigeration applications with natural refrigerants.

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
  • Research & market trends
  • Latest technology trends related to compressor, evaporator, condenser/gas cooler, and chiller developments
  • 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
  • Policy developments: PFAS restriction proposal, EU F-gas regulation, and MAC directive
  • OEM presentations

Programme

  1. 13:30

    Registration and welcome coffee

    Participants are invited to the registration table to pick up their name badge upon arrival.

  2. 14:15

    Welcome & introduction

    Welcome & Introduction by Marc Chasserot, Founder & CEO of ATMOsphere, and Stefan Elbel, Professor & Head of the Chair of Heat Transfer and Heat Conversion at TU Berlin.

  3. 14:45
    Keynote

    Keynote: The path to PFAS-free solutions: success stories from mobile HVAC and transport refrigeration

    The presentation will set the scene and give an exclusive, in-depth look at the latest natural refrigerants-based research and technology trends across all mobile and transport refrigeration applications.

    Moderator Marc Chasserot, ATMOsphere

    Stefan Elbel, Professor & Head of the Chair of Heat Transfer and Heat Conversion,Technische Universität Berlin (TU) Berlin

  4. 15:15
    Session

    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.

    Moderator Marc Chasserot, ATMOsphere

    Matteo Martini, Associate Director, S&P Global MobilityMarket dynamics of air conditioning refrigerants: the impact of technological advancements and regulatory frameworks on light vehicle systems

  5. 15:45
    Session

    Technology case studies

    Case studies presented by leading OEMs and suppliers, showcasing the integration and expansion of CO₂ and propane across various applications, such as air conditioning in automotive, buses, trucks and trains.

    ModeratorStefan Elbel, Technische Universität Berlin (TU) Berlin

    Dr. Roman Heckt, Global Chief Engineer for natural refrigerant systems, Hanon SystemsA cleaner future with natural refrigerant MAC Systems - avoiding excessive health burdens by decreasing TFA

    Carsten Wachsmuth, Thermal Management of EVs, & Johannes Schwerter, Test Engineer System and Vehicle Testing, Research and Development, Volkswagen Thermodynamic innovation: Volkswagen heat pump system with R744

  6. 16:30

    Networking break

    Coffee, tea and light snacks will be served in the sponsor exhibition area.

  7. 17:00
    Session

    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 (TU) Berlin

    Karsten Mundt, Sales Director International - Division Bus,  Konvekta, & Giacomo Pisano, CO₂ Compressors Business Development Manager, DorinActive refrigerant charge balancing and novel compression technology: how to boost electrified bus autonomy

    Paul van Rooijen, Sales Director, Aurora Netherlands R290 heatpump HVAC system for electric bus 

    Gabriel Greussing, Test Engineer and Project Manager, Obrist EngineeringR290 MAC – risk in a risky world

    Kirsten Orschulok, Project lead – Greener Reefer project, Deutsche Gesellschaft für Internationale Zusammenarbeit (GIZ), & Santiago Martinez, Laboratory Manager & Core Refrigeration Lead, Thermo KingGreener Reefers: Progress and technical status of the R290 proof of concept of reefer

  8. 18:00
    Session

    PFAS: Essential chemicals or replaceable risk?

    The presentation will provide chemical background on PFAS and highlight their phase-out in different industry sectors

    ModeratorStefan Elbel, Technische Universität Berlin (TU) Berlin

    Sebastian Riedel, Professor, Freie Universität Berlin, & Founding Director, Center for Sustainable Resources (CSRBerlin)

  9. 18:30

    Networking drinks

    Participants are invited to join us for some networking drinks in the sponsor exhibition area.

Speakers

Sponsors

Platinum

HANON SYSTEMSUnited Nations Industrial Development Organization (UNIDO)

Bronze

CREATIVE THERMAL SOLUTIONS (CTS)KONVEKTADORINECOOLTEC

Media

REFRIGERATION INDUSTRYHVAC INFORMEDNATURALREFRIGERANTS.COM

Venue

Technische Universität Berlin

Institut für Architektur, Str. des 17. Juni 152, 10623 Berlin, Germany
Berlin, Germany

Announcements

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Key highlights

What an impactful two days at ATMO MAC Summit x TU Berlin this week! Together with TU Berlin, we welcomed leading experts, innovators, and decision-makers to dive deep into the future of natural refrigerants for mobile air conditioning, heat pumps, and transport refrigeration. A huge THANK YOU to our sponsors, speakers, and attendees from 70 organisations for their contribution and support…

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ATMOsphere MAC Summit x TU Berlin I complete Programme
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One week to go – secure your pass today!

Seize the opportunity to join 55+ leading confirmed organisations at ATMO MAC Summit x TU Berlin . Explore a programme packed with cutting-edge cooling and heat pumping solutions for mobile applications and transport refrigeration. Gain valuable insights on optimal thermal management for EVs, stay ahead with key policy updates, and discover the latest technology and market trends. Haven’t registered yet? There’s still time…

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FINAL PROGRAMME

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Hosted ATMO Europe 2025 site visit to SCM Frigo’s facilities in Padova!

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New presentations this week!

ATMOsphere MAC Summit x TU Berlin updates: This week, we’re highlighting new presentations and are delighted to welcome our latest speakers. PFAS: Essential chemicals or replaceable risk? The presentation will provide chemical background on PFAS and highlight their phase-out in different industry sectors, offering perspectives relevant to heating and cooling systems. Sebastian Riedel, Professor, Freie Universität Berlin, & Founding Director, Center…

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ATMOsphere America Summit 2025 - natural refrigerant technology case studies
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This week’s new presentation announcements

See the latest confirmed cases studies to be presented ATMO MAC Summit x TU Berlin next month! Eric Laurenz, Product Manager for Refrigerant Safety, Fraunhofer Institute for Solar Energy Systems I Locked up tight – Lessons learned from an innovative sorption based safety concept for R290 refrigerant circuits Transport refrigeration We’re also pleased to announce that Thermo King will join Deutsche Gesellschaft für Internationale Zusammenarbeit (GIZ) to…

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Presentation by Ford-Werke I List of organisations attending

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ATMOsphere America 2025 Summit will take place on June 11-12 in Atlanta
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Presentation by Volkswagen

New presentation Thermodynamic innovation: Volkswagen heat pump system with R744 We’re delighted to welcome Volkswagen back to ATMO MAC Summit x TU Berlin, where they will present on their CO₂ heat pump system. Joining us are esteemed speakers: Carsten Wachsmuth,, Thermal Management of EVs, Research and Development, Volkswagen Johannes Schwerter, Test Engineer System and Vehicle Testing, Research and Development, Volkswagen Don’t miss out – register…

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Meet our first policy panelists

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New speakers announced!

Keynote Kicking off the ATMO MAC Summit x TU Berlin programme, Stefan Elbel will deliver an in-depth look at the latest research and technological advancements in natural refrigerants across all mobile applications. His keynote will set the tone for two days of high-level discussions and forward-looking insights. Stefan Elbel, Professor for Heat Transfer and Energy Conversion, Technische Universität Berlin (TU) Berlin New…

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ATMOsphere America 2025 Summit will take place on June 11-12 in Atlanta
19 June 2025

Market dynamics of air conditioning refrigerants

Market dynamics of air conditioning refrigerantsThe impact of technological advancements and regulatory frameworks on light vehicle systems. As the automotive industry increasingly responds to environmental and health concerns around per- and polyfluoroalkyl substances (PFAS), there is a shift toward the adoption of natural refrigerants for AC systems. This transition is accelerating with the rise of electric…

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ATMOsphere America Summit 2025
4 June 2025

Welcome first speakers and our partners!

We are delighted to introduce the first speakers at ATMOsphere MAC Summit 2025 x TU Berlin, taking place on 23-24 September 2025 in Berlin. Mobile air conditioning Dr. Roman Heckt, Global Chief Engineer for natural refrigerant systems, Hanon Systems |Cleaner future by MACs with natural refrigerants – Avoid excessive health burden by increasing TFA emissions. Laurent Descourtieux,Business Development Manager, FIVES FILLING &…

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Our Platinum Sponsor, Hanon Systems!

WELCOME TO OUR PLATINUM SPONSOR We are proud to welcome Hanon Systems as the Platinum Sponsor of ATMOsphere MAC Summit 2025, taking place in partnership with TU Berlin‘s Chair of Heat Transfer and Heat Conversion. Hanon Systems, founded in 1986, is a global leader in thermal energy management solutions. In January 2025, it became a subsidiary of Hankook &…

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ATMOsphere MAC conference on natural refrigerants in the mobile application - Early Bird last chance
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Early Bird: last chance!

Those are the last days, before 18 April, to benefit from the Early Bird offer on your ATMOsphere MAC Summit pass and receive a discount of up to 150€. The conference will offer a unique opportunity to network with industry stakeholders including OEMs from the automotive, bus, truck and train sectors, suppliers, policy makers, academics, and researchers. Forge new business connections and gain insights from top…

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TMOsphere MAC conference on natural refrigerants in the mobile application
26 March 2025

Call for case studies

You’re invited to submit your technology case studies showcasing natural refrigerants for ATMOsphere MAC Summit 2025 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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ATMOsphere MAC conference on natural refrigerants in the mobile application
19 March 2025

Early Bird Offer!

Registration for ATMOsphere MAC Summit xTU Berlin is open! Take full advantage of our EARLY BIRD offer and save 150€ on your pass, joining us and key industry stakeholders on 23-24 September in Berlin.Expect an enriching programme featuring cutting-edge cooling and heat pumping solutions for mobile applications and transport refrigeration. Gain valuable insights from presentations on optimal thermal management for EVs, key policy updates, and the latest…

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Save the Date!

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