Held from 13-14 May, the 2025 Kälte Kolloquium in Munich set a new benchmark for technical excellence and industry networking. With the theme of “Sustainable refrigeration systems for food,” the two-day event took attendees on a journey through innovation, from in-depth seminars to star-studded networking. Spread across three unique venues including the Science Congress Centre in Garching, the ESO Supernova Planetarium and Visitor Centre, and TÜV SÜD’s cutting-edge lab in Olching, this year's edition attracted 87 participants.

Organised by Eurovent Certification and Eurovent Association, in partnership with Gerhard Frei from COOLPLAN, supported by Roland Handschuh and media partners cci Dialog GmbH, KKA and Klima Journal, the event provided an interstellar line up of presenters across the realm of refrigeration.

Day one – Science Congress Centre Munich

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The day began with refreshments and networking before Sylvain Courtey, President of Eurovent Certification, welcomed attendees and paid tribute to the late Tim Kroeger. Moderator for the event, Gerhard Frei from COOLPLAN, next ran through the plan for the day ahead, teasing at the technical seminars including:

KEYNOTE – ENOUGH Project – Strategies and Concepts for Reducing Emissions in the Food Cold Chain
Prof. Dr.-Ing. Armin Hafner, Norwegian University of Science and Technology

Refrigeration system for heat supply - using synergies
Georg Wartelsteiner, Eckert & Partner Beratende Ingenieure GmbH

Turn key water loop concepts in food retailing
Markus Kielnhofer, AHT Cooling Systems GmbH

Efficient air curtain systems as thermal barriers
Benjamin Meißner, Frico GmbH

Efficient catering refrigeration technology in the Allianz Arena
Christian Kraus, Dussmann Kälte- und Klimatechnik GmbH - KED

Sustainable NH3 cooling technology for HoWe sausage products
Richard Dogan, Amberger Kühltechnik GmbH

Large heat pump with industrial waste heat recovery
Christoph Mudra, Johnson Controls Systems & Service GmbH

Building trust in product performance through Eurovent Certification
Sylvain Courtey, Eurovent Certification

To close the session, Peter Schnepf of TÜV SÜD introduced the following day’s lab visit, before Gerhard set the scene for an evening under the stars.

Evening - ESO Supernova Planetarium and Visitor Centre

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The evening continued with a short stroll to the nearby ESO Supernova Planetarium, where Julian Janßen from Jinjan – Clima consulting delivered a final talk on Innovative planning approach using simulations, offering insights into the HVAC design behind the centre itself.

After an immersive planetarium show and access to freely roam the exhibition, guests enjoyed rooftop cocktails, dinner, and relaxed conversation beneath the stars.

Day 2 – TÜV SÜD Laboratory

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While day one provided the opportunity to dive into the latest technical challenges with key industry players, day two shifted focus to testing and certification with a guided tour of TÜV SÜD’s state-of-the-art laboratory in Olching.

Splitting into groups, delegates explored:

• The refrigeration plant rooms - capable of producing temperatures down to a staggering -50^oC.
• The transport refrigeration test chambers – including a brisk visit to a -8°C chamber.
• The acoustics chamber - specialised in conducting detailed noise measurements, frequency analyses, and vibration assessments to ensure compliance with acoustic standards.
• HVAC testing chambers - capable of evaluating heat pumps, air handling units (AHUs), fan coil units, and other HVAC components.
• The CO2 test rig and natural refrigerant test chambers - testing for refrigeration systems using natural refrigerants.

The tour gave a fascinating insight into product testing and certification, at TÜV SÜD's epicentre for HVACR testing activities.

The event wrapped up with a relaxed three-course meal at Hotel Restaurant Gross in Bergkirchen offering one last chance to connect and reflect on two incredible days of learning and networking.

To find out more visit https://kaelte-kolloquium.de/