R744: ATMO World Summit: CO2 is ‘Close to the Ideal Refrigerant’

“CO2 is as close to the ideal refrigerant as you can come,” said Dorin Sales Manager Giacomo Pisano, citing CO2 [R744] refrigeration pioneer Professor Gustav Lorentzen, who developed the modern transcritical CO2 cycle.

His observation came at the end of a presentation about industrial refrigeration during the ATMO World Summit conference on March 30. The online, 24-hour conference was organized by ATMOsphere (formerly shecco), publisher of R744.com.

Pisano talked about the use of ammonia/NH3 (R717) and CO2 in industrial applications, listing their benefits and drawbacks. While recognizing that ammonia is a “great refrigerant, seen from a thermodynamic standpoint,” Pisano still feels the scales tip in favor of CO2 when you include cost, efficiency developments and maintenance.

Read more