by Andre Patenaude | Jan 23, 2024 | Efficiency, Efficiency & Refrigerant Regulations, Refrigerants
In post six of our CO2 as a Refrigerant blog series, I will compare CO2 to traditional and emerging refrigerants. CO2 has been an approved refrigerant in the U.S. for nearly a decade. Today, as the HVACR industry accelerates the transition away from legacy...
by Andre Patenaude | Jan 23, 2024 | Efficiency & Refrigerant Regulations
This is the first post of CO2 as a Refrigerant, a blog series covering the fundamental considerations and characteristics of CO2 as a refrigerant (R-744). CO2 offers a proven, sustainable refrigeration strategy — with a global warming potential (GWP) of 1 and zero...
by Andre Patenaude | Jan 23, 2024 | Efficiency & Refrigerant Regulations, Refrigerants
For the final post of our CO2 as a Refrigerant blog series, I examine which CO2 system architectures are best suited for different retail scenarios and review emerging strategies for improving energy efficiencies. By far, the most common CO2 refrigeration system used...
by Andre Patenaude | Jan 23, 2024 | Efficiency & Refrigerant Regulations, Refrigerants
In post 11 of our CO2 as a Refrigerant blog series, I provide an introduction to CO2 cascade systems used in commercial refrigeration systems. A CO2 cascade system is comprised of two distinct stages and systems: A low stage provides the cooling using R-744, always...
by Andre Patenaude | Jan 23, 2024 | Efficiency & Refrigerant Regulations, Refrigerants
In post 10 of our CO2 as a Refrigerant blog series, I examine the most common and widely adopted CO2 commercial refrigeration system: CO2 booster. Because of R-744’s high discharge temperature and high differential pressures, a two-stage compression strategy is needed...