Ahold, the Dutch retailer, recently retrofitted the refrigeration systems in 175 of its supermarkets using the Chemours refrigerant 'Opteon XP40 (R-449A)', replacing the previously used R-407F and R-507A.
The retailer began the retrofit project in 2014 with the aim of reducing its CO2 emissions while maintaining its costs at the same level. Ahold managed to reduce its CO2 emissions by 57,000 tons per year as a result of the project. Its target was to reduce its CO2 emissions by 20% from levels in 2008 by 2015. Ahold tested the Opteon XP40 before rolling it across their stores after seeing a market reduction in the energy used by their refrigeration systems.
The tests run by Ahold and refrigeration consultancy P.W. Vlaskamp B.V. from Dordrecht showed an 8% energy efficiency improvement after the retrofit using the R-449A refrigerant. In addition, without the extra 'abatement' costs, the entire retrofit would pay for itself within five years.
Customers at the Steakhouse Amigo Ranch in Veendam, the Netherlands, enjoy their food in comfort thanks, in part, to a heat recovery system supplied by Mark Climate Technology.
The Mark Airstream CFX 6400 contains has an aluminium counterflow heat exchanger for recovering extracted heat, which is up to 90% efficient. The outdoor unit has an airflow of of 6400 m3/h. The restaurant has a 600m2 surface area and now gets ventilation without need for extra heating energy.
The kitchen now has three Mark extraction units whose air flow is 4000 m3/h.