Natural refrigeration technology is gaining traction with end-users, according to speakers at the Atmosphere Conference in Brussels last month.

Furthermore, it was revelaed that despite technological successes, there are still challenges to overcome in the form of regulatory obstacles and skill shortages.

Supermarket end-users reported a key development, with the first successful year’s operation of transcritical carbon dioxide refrigeration systems in warmer climates. Ambient temperatures above 20 deg C, previously considered unfeasible for transcritical CO_2, now appear to be not only achievable but cost-effective, thanks to recently developed parallel compression and ejector technology.

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