September 6, 2017 | Posted in | By Membership Committee
CO2 Refrigeration and Heat Pumping
The use of CO2 as a refrigerant has grown in the residential, commercial and industrial refrigeration and heat pumping industries. This presentation will explore the different applications that have used CO2 and will examine its efficiency as a refrigerant in different conditions. While reviewing subcritical and transcritical operation of a CO2 refrigeration cycle we will dispel myths about the efficiency of CO2 and understand which applications are best suited for its use as a refrigerant. The presentation will also explain the peculiar operation of systems operating with refrigerant above the critical point including the unique ability to increase compression ratio and efficiency at the same time.
Greg Scrivener started in the refrigeration industry as an apprentice refrigeration mechanic in 1997 and completed his journeyperson certification in 2003 with an award for ‘Most outstanding new Journeyperson”. Continuing to work in the refrigeration industry, Greg completed a B.Sc. in Mechanical Engineering with distinction from the University of Saskatchewan in 2011.
Having worked in roles from all the way from mechanic to design engineer, Greg can offers a comprehensive view point on refrigeration related construction and design. In 2014, he founded Cold Dynamics and is now involved with refrigeration consulting work including design, inspections, commissioning, advanced troubleshooting, energy auditing, control sequence optimizations, and training. Coupled with a passion for energy efficiency and the environment, Greg’s unique experience leads to an in-depth understanding of the parameters affecting efficient refrigeration system operation.