German wholesale giant Metro AG has started converting its Russian R404A stores to CO2 (R744) refrigeration, having completed the first conversion to transcritical CO2 at a Cash & Carry hypermarket in Orenburg, southwest Russia. In its upcoming fiscal year, Metro’s next two conversions from R404A to transcritical CO2 will take place at stores in Stavropol and Astrakhan, Russia,…
Chinese OEM Zhejiang XingXing Refrigeration’s system, aimed at the Chinese food retail market, employs parallel compression and ejector technology.
The CO2 transcritical system was installed at the recently opened Sprouts Farmers Market in Woodstock, Ga., in the Atlanta area.
Switzerland’s biggest retailer Migros is aiming to become a leader in climate protection and energy savings under its ‘Generation M’ sustainability programme. In its latest effort to trial and spread state-of-the-art CO2 refrigeration technology, Migros partnered with system engineering expert Frigo Consulting in its Ibach store to save 45% energy while setting new benchmarks for using ejectors across Europe.
Armin Hafner gave one of the most inspiring presentations at ATMOsphere Asia 2016, highlighting some of the latest technological advances in ejectors, transport, and industrial refrigeration solutions.
The continually diminishing CO2 efficiency equator was a hot topic at ATMOsphere Europe 2015. Several system manufacturers presented the methods by which CO2 transcritical system efficiency can be improved, with ejector technology taking the spotlight. According the several presenters the end of the so-called “CO2 equator” is in sight. + VIDEO
Adding to the growing knowledge base on ejectors in CO2 transcritical refrigeration systems, research presented by SINTEF at the Gustav Lorentzen 2014 conference (GL 2014) shows that a CO2 ejector refrigeration system with parallel compression can achieve around 25% energy savings compared to a standard R404A system in warm climates. SINTEF also analysed an integrated energy system with CO2 refrigeration installed in Norway, demonstrating a 30% reduction in energy