CaseStudy1

IARW exhibitors see interest in transcritical CO2 and NH3/CO2 in cold storage sector

In addition to featuring a number of low-charge ammonia products, the IARW-WFLO Convention & Expo, held in Orlando, Florida on 26 – 19 April, included several exhibitors promoting CO2-only and ammonia/CO2 refrigeration systems. While CO2 is still relatively new for the refrigerated warehouse operators attending the show, it is slowly gaining traction as an alternative to traditional high-charge ammonia systems.

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People 5

Exclusive interview: Carrefour exploring all avenues for CO2 transcritical

Carrefour has big plans for CO2. The company won’t go so far as to declare an all-CO2 philosophy, yet its expansion into warmer ambient climates, in particular two transcritical pilot stores in Valencia, would suggest that notion is closer to reality than they might think. R744.com sat down with the Director International Support at Carrefour, Jean-Michel Fleury, about the expanding CO2 transcritical market in Europe.

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People 8

Exclusive interview with Amad Hafez provides update on Portuguese retailer’s CO2 journey

SONAE MC’s Amad Hafez spoke to R744.com about their experience with cascade systems in Portugal and the retailer’s feelings about their future use of natural refrigerants. While the company praised the high savings their CO2 subcritical commercial refrigeration systems were able to provide, they are still seeking an alternative to R134a. The performance of its two CO2/NH3 stores has not met expectations. However, SONAE MC is keeping an eye on CO2

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CaseStudy2 19

Will Bulgaria make the transition from CO2 cascade to CO2 transcritical?

With CO2 transcritical retail stores in warmer European climates expected to hit 100 in the next two to five years thanks to technology developments like adiabatic cooling, ejectors and parallel compression, Bulgaria represents a potential growth market for the technology. Although there are still barriers to overcome in the EU Member State positive developments are on the way with leading retailer Kaufland seriously considering CO2-only systems.

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