Presentations from seminars and webinars

Presentations from internal Project meetings

At each Project meeting, a presentation on a topic related to the Project is given. These presentations are found here. (N.B. Not all presentations are in the public domain)

• Previous activities on charge reduction at KTH and partners, Björn Palm, KTH, Sweden
• Natural Refrigerant Opportunities, Klas Andersson, NIBE, Sweden
• Safety standards for the application of flammable refrigerants, Daniel Colbourne, Re-phridge; UK
• Numerical modelling of refrigerant leaks, Thore Oltersdorf, Fraunhofer ISE and Kashif Nawaz, Oak Ridge National Labs; USA
• Development of a charge assessment method for residential HP Minkyu Jung, South Korea
• Work on the European Standard EN378 on Safety and environmental requirements, Refrieration systems and heat pumps, Harald Erös, ÖGKT, Austria
• Presentation of the EU-project Skillsafe, Nishant Karve, DaikinEurope
• Development of a charge assessment method for residential heat pumps, Odile Cauret, EDF. France

Presentations from webinars

Presentations from European Heat Pump Summit 2025

• Presentation of IEA HPT Project 64, Safety with flammable refrigerants, Björn Palm, KTH, Sweden
• Leak hole sizes in plate heat exchangers, Thore Oltersdorf, Fraunhofer ISE, Germany
• A method to determine in real time the refrigerant charge of a residential heat pump, Maëlle Journay, EDF. France
• Evaluation of odorants in Refrigerant R290 to improve leak detection, Xudong Wang, AHRI, USA

Webinar June 2025

• IEA HPT Annex 64: Safety with flammable refrigerants, Björn Palm, KTH, Sweden
• Safety aspects when using hydrocarbons in lab environments, Odile Cauret, EDF, France
• CFD simulation of refrigerant leakages from heat pumps, Jafar Esmaeelian, KTH, Sweden
• R290 leak detection by ultrasound, Louis Allenbacher, Fraunhofer ISE

Presentations from Chillventa 2024

• Safety with flammable refrigerants – presentation of IEA HPT Annex 64, Björn Palm, KTH
• Consequences and prospects due to the broad use of R290 in heat pumps in Germany, Thore Oltersdorf, Fraunhofer ISE
• Strategies on the Refrigerant Charge Reduction of Flammable Refrigerants for Heat Pumps, Minkyu Jung, Minsung Kim, Chung-Ang University