At the 2015 AHR Expo, one of the world’s largest HVAC&R trade fairs, component manufacturers showcased small footprint transcritical CO2 technology; will North American convenience stores opt for these systems?
Heatcraft Worldwide Refrigeration has launched the Kirby CO2 evaporator suitable for low temperature freezer applications and direct expansion systems. The evaporator fares well in terms of heat exchange efficiency, capacity, reliability and compressor displacement.
According to a new report by Carrier Commercial Refrigeration almost two-thirds of large supermarkets from North and West European countries now use natural refrigerants in their stores, a trend driven by company-wide sustainability policies, and one that is outpacing EU legislation. The study, developed in partnership with market development company shecco, seeks to provide a clear picture of the key drivers for and against the adoption of sustainable refrigeration and refrigerant options.
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
The FMI Energy & Store Development Conference in St. Louis gave retailers the opportunity to discuss their experiences with installed CO2 systems. Harrison Horning from Delhaize America / Hannaford, Jamie J. Meyers from Walgreens, and Rob Olden from GI Energy, discussed pilot transcritical CO2 stores in Maine and Illinois, whilst Benny Smith from Price Chopper talked about the first CO2 system in North America, installed in 2008.
Attended by over 600 people, the FMI Energy & Store Development Conference focuses on energy-efficiency and conservation in the food retail industry, as well as the latest innovations in store design and merchandising. Kicking off the event as in previous years was the EPA’s GreenChill Awards ceremony, a program that recognises individual stores for investments…
Three new CAREL controllers providing complete CO2 system management were presented at FMI Energy & Store Development Conference from September 7-9, 2014 in St. Louis (MO). The rack controller pRack pR100T for transcritical CO2 condensing units, pRack pR300 for subcritical CO2 systems, and the pRack pR300T for transcritical CO2 applications are part of CAREL’s range of retail solutions to fully integrate and energy optimise refrigeration.
The Hotel Technological Institute (ITH) in Spain has launched a new project with the aim of promoting the use of CO2 as a refrigerant. Thanks to Mitsubishi Heavy Industries (MHI) Q-Ton heat pump systems, which use climate-friendly CO2 as a refrigerant, hotels can increase energy savings and guarantee maximum performance while reducing their CO2 emissions.
A wealth of new research and technological developments on CO2 as a refrigerant in centralised commercial refrigeration, heat pumps, glass door merchandisers and data centre cooling was presented at the 11th biennial Gustav Lorentzen conference on natural refrigerants. The event provided valuable insight into current and upcoming technology trends for all alternative refrigerants. Whilst CO2 stole the show, R744 research continues to focus on improving
In a move destined to shake up the North American CO2 refrigeration market, Canadian company Systemes LMP has announced an alliance with Hussmann Corporation, expanding the reach of one of the most adaptable transcritical refrigeration solutions on the market.
