Recommended by the IIR / IIR conference

10th IIR Conference on Ammonia and CO2 Refrigeration Technologies

Register today!


The 10th edition in this IIR conference series, to take place on April 27-29, 2023, in Ohrid, North Macedonia, will explore the design of modern ammonia and new CO2 systems and technological innovations, improving energy efficiency, various applications, technical guidelines and safety regulations.


Bridging the gap between industry and academia, this IIR Conference will focus on the intensifying global trend towards using natural refrigerants, such as ammonia, carbon dioxide and hydrocarbons, in various refrigeration applications worldwide.


Keynote presentations
  1. Andy Pearson (UK, Former President of IoR of UK): ”Lecture on ammonia refrigeration …”
  2. Armin Hafner (Norway, NTNU): “Smart CO2 refrigeration and heat pumping systems”
  3. Sergio Girotto (Italy, Enex srl): “Optimal selection of system design and selection of the best natural refrigerant for refrigeration and HVAC systems”
  4. Sascha Hellmann (Germany, Carrier Commercial Refrigeration): “Evolution of the CO2 refrigeration technology from 2000, applications and an outlook for the next several years”
  5. Svenn Ole Kjøller Hansen (Denmark, Danish Technological Institute): "Trends in heat pump technology in Denmark"


Registration open!


Key dates
  • Deadline for abstracts: September 30, 2022
  • Notification of acceptance: October 31, 2022
  • Deadline for full papers: January 10, 2023
  • Notification of acceptance: February 10, 2023


  • Start date : April 27, 2023
  • End date : April 29, 2023
  • Location : Ohrid, North Macedonia
  • Organisers : Faculty of Mechanical Engineering (Skopje)
  • Contact :