ALTERNATIVE REFRIGERANTS
Food retailer reduces refrigerant charge by 90%
As part of the EU’s efforts to slow down global warming, targets were established to cut F-Gas emissions by two-thirds of 2014 levels by 2030. By taking this regulatory action, the EU hopes to reduce the effects of climate change seen on an ever-larger scale. While the emissions of other greenhouse gases have already been reduced, F-Gases are still on the rise.
N
atural refrigerants, such as ammonia and CO, have been proven to be suitable alternatives with a minimal environmental footprint. They do not form persistent substances in the atmosphere, biosphere or water, are part of the natural biogeochemical cycles and have zero ODP and a negligible Global Warming Potential (GWP). One of the alternative environmentally-friendly systems developed for use in supermarket refrigeration cabinets and coldrooms is the waterloop system. Waterloop solutions use a closed water circuit to transfer heat away from
individual cabinets or coldrooms, replacing a centralised plant system and its traditional compressor pack and refrigerant line. Each individual cabinet contains a small refrigerant charge and plate heat exchangers which transfer heat to a separate water circuit. A common approach is to design
30 December 2019
plug-in cabinets, fi tted with variable-speed compressors, they are compact and quick to install.
Food Retailer Reaps Benefits from Waterloop System One of New Zealand’s largest food retailer, Foodstuff s, is a 100% New Zealand owned and operated organisation, made up of two regional cooperatives. As an organisation, they have exceptionally high standards and view themselves as an integral member of each one of the communities in which they operate. As such, protecting the environment is central to their ethos and was a primary consideration when looking to implement a new refrigeration control solution in their Fresh Collective by New World store. When considering diff erent options available, a waterloop solution was
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