CO2 as a Refrigerant — Criteria for Choosing Refrigerants

Apr 30, 15 | Efficiency & Refrigerant Regulations, Refrigerants

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Multiple factors need to be carefully considered when selecting any refrigerant, including its cooling capacity, safety, environmental impact, ease of use, cost, and availability of components and expertise. Table 1 summarizes these and other key criteria, and shows how well R744 meets them.

In general, the table shows that R744 offers a more superior cooling capacity than conventional refrigerants while meeting the demand for a natural refrigerant with low global warming impact, but presents challenges in both its application and handling.

In the next post, we’ll look at the properties of R744 as a naturally occurring substance.

How R744 meets different conditions and criteria

Table 1: How R744 meets different conditions and criteria