Shaping Tomorrow's Built Environment Today

Update on Refrigerants: Past, Present and Future

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Update on Refrigerants: Past, Present and Future

  • 26 May 2019
  • Bucharest, Romania


Course Description

Course Length: 3 hours

In recent decades, the refrigeration and air conditioning sciences have been in a state of flux primarily because of the phase-out of ozone-depleting CFC and HCFC refrigerants, and secondarily because of environmental concerns related to the direct global warming impacts of some of the replacement refrigerants. Due to these concerns, there is significant worldwide interest in using substances that are naturally occurring in the biosphere as refrigerants, which are considered benign to the environment and are termed “natural working fluids”. 

Surprisingly, many of these substances were already used as refrigerants at the dawn of the refrigeration technology in the late 1800’s. Thus, when looking at the refrigerants of the future, it is essential to understand which substances have been used in past. This presentation provides a detailed review of the past and present refrigerants, and proposes refrigerants and their respective technologies that could be used in the future. An assessment of their characteristics related to choice of one versus another, and an identification of trends set by these choices will be made.

Please note: printed course materials will not be available for this presentation.
Attendees are strongly encouraged to bring their own laptops/tablets to follow along with the live presentation. Attendees registered before 17 May 2019 will receive a PDF copy of the presentation by email one week in advance. Registrants after 17 May 2019 will receive PDFs by email after the presentation.



Romania National Library
Bulevardul Unirii 22
Bucharest, 030833, Romania

Course Time:


Course Fees:

Non-member: $99 USD
Member: $59 USD
Student Member: $39 USD

Course Instructor

Eckhard A. Groll, Dr.Ing., Ph.D., Fellow ASHRAE

Additional Information

All courses are available for Chapter and In-Company Programs. Courses may be periodically scheduled for the Winter and/or Annual Conference Education Programs, as well as the Online Courses Series.

Chapters or Companies: Contact Karen Murray, Manager of Professional Development ( or 678-539-1146), to schedule an ALI seminar or course at your organization or event.

Availability: Check the various offerings listed under Professional Development > All Instructor-Led Training to see if this course is being offered at an upcoming event.