Carbon Dioxide in North American Supermarkets

With the planned phasing out of R-22, CO2 is getting a new look as a refrigerant for supermarket refrigeration. CO₂ as a two-phase secondary coolant showed several advantages compared to the single-phase salts. This article explains these benefits along with the main disadvantages of CO₂—higher operating pressures and availability of components.

Authors: By David Hinde; Shitong Zha, Ph.D.; and Lin Lan

Citation: ASHRAE Journal, vol. 51, no. 2, February 2009, pp.

Pages: 9

Publish Date: February 2009

Publisher: ASHRAE

---