Switching to integral display case refrigeration systems could result in big savings for some retailers, says a new study.
Emerson worked with the independent institute of air handling and refrigeration ILK Dresden to analyse the long-term cost implications of refrigeration systems using low GWP refrigerants.
Eric Winandy, Director of Integrated Solutions, Emerson Commercial and Residential Solutions, said: “The environmental impact of refrigeration is significant, and recent international agreements are forcing operators to rethink the systems they use. As the retail sector makes this once in a generation transition, it’s presented with a major challenge but also an opportunity to select the right technologies which can maximise long term environmental, operational and cost benefits.
“Our analysis shows that the choice of a refrigeration system entails far more than just a need to move to a low GWP refrigerant. It has major implications for the operations of stores, for maintenance and upkeep and for the overall running costs of facilities. Integral display cases won’t be appropriate for every store, but the significant cost benefits they can deliver highlight the fact that retailers should consider every option and all of the implications of the choices.”
Integral refrigeration describes stand-alone display cabinets and freezers which contain their own cooling system – similar to a domestic fridge. They are commin in drinks vending machines and ice cream freezers found in corner shops worldwide. Most supermarkets have some integrals, even if their main system is remote. But integrals can also be used to provide refrigeration for entire stores provided the heat generated is removed to an external chiller or heat exchanger through a simple pipe containing water or brine. These are referred to as water cooled integral systems, and need no plant room.
The study focused on a typical European discounter store with 10 display cases per store and approximately 1,000m2 vending area.