CO₂ as a Refrigerant – R-744 Advantages and Disadvantages

In post seven of our CO₂ as a Refrigerant blog series, I will weigh the relative advantages and disadvantages of R-744.

Weighing the Advantages and Disadvantages of R744

Table 1 outlines the advantages and disadvantages of R-744 as a refrigerant. Although the list of disadvantages appears smaller than the advantages, these considerations should not be overlooked, as they have a significant impact on the safety and reliability of R-744 systems.

Table 1: Advantages and disadvantages of R-744 as a refrigerant

The next blogs in this CO₂ as a Refrigerant series will cover additional relevant R-744 topics in greater detail, including a general overview of R-744 systems; and more specific information about the designs of CO₂ booster (i.e., transcritical booster), and cascade systems — exploring key points about their commissioning, operation and service.