CO2 technology training for Engineers. CO2 Academy

More and more people are realizing the many benefits of refrigeration units that use CO2/R744 as a refrigerant. And in many countries, laws are being passed to drive the transition to nature friendly solutions. Those of us who work with the refrigeration industry are currently seeing a technical revolution take place, and it is essential that we have the right skills to keep up with developments. CO2 Academy is the natural choice for training in transcritical CO2 technology. As a engineer it is not only essential to understand the technical aspects of CO2 technology, but also to acquire the relevant communication skills.

Course Content (preliminary)


  • Basic refrigeration technology
  • Why carbon dioxide is a superior refrigerant
  • Impact of various refrigeration technologies on the environment and why environmental issues are possibly our biggest challenge
  • Performance and Coefficient of Performance (COP) measurement
  • Comparisons with other refrigerants
  • Introduction to the technology behind CO2 systems

The Pressure Equipment Directive and general rules for using CO2 as a refrigerant

  • General rules regarding safety aspects and safety equipment, gas alarms etc.
  • Pressure testing. Test procedures according to PED or Ll (depending on participants)

CO2 systems

  • Refrigerators and freezers
  • Controlling cooling units

Knowledge of materials and brazing technology for CO2 systems

  • Main components and their properties
  • Presentation of K65 copper tube

Refrigeration units and systems

  • Why and when is the best way to use a specific unit type
  • Single units
  • Booster units
  • 3-temperature level units
  • Condensing units
  • Ejector system
  • Design pressure 80, 60 Bar or 45 Bar, what is the different and what is more safe?
  • Ice Hockey rinks.
  • Hot climate solutions: Parallel compression, liquid sub cooling.

Heat recovery systems

  • Presentation of different types of heat recovery systems?
  • What is the best solution among the different types of heat recovery solutions?
  • Discussions

System design

  • How to design an effective system
  • How to achieve the highest possible energy efficiency
  • How to connect a CO2 refrigeration unit to an existing building’s heat recovery system
  • Communication between refrigeration unit and new or existing heat recovery/ventilation system
  • Air conditioning or heat pump in the same pack as the refrigeration pack, is it possible?
  • Pipe dimensioning
  • Tubes & fittings
  • Electrical connections


  • Heat exchangers theoretical and practical design
  • Component design tools
  • Pipe sizing tools
  • System comparison and simulation tools
  • Lessons learned
  • Heat pumps
  • Application examples


  • Folder w/ print outs
  • USB stick including all documents electronically

Software and tools

  • Compressor selection tools (Bitzer, Dorin etc.)
  • CoolPack
  • Pack Calculation II
  • Simple-one-stage
  • Refprop
  • Pipe 1B2R

Course Details


1,2 or 5 days


Aeres Tech Training Centre, Zandlaan 27, Ede, Holland. Nearest airport is Schiphol, Amsterdam.

Starting point

The importance of understanding CO2 refrigeration technology and the essential role of the engineer in contacts with end users and contractors.


Awareness of the role of the consultant as the linchpin between end users and contractors/suppliers of materials etc.


Learning by doing, learn things today – do things tomorrow, in your own professional situation.


  • Explanation of the subject by the instructor.
  • Discussion and exchange of knowledge and experiences between participants and instructor.
  • Personal approach – present and wanted/desired.
  • The participants practise the new behaviour.
  • Personal action plan for each practised subject.

Size of the group

7-12 participants