Refrigeration technology for supermarkets: the “gas-free” market of the future
In food retail, the refrigeration system is the biggest energy consumer – but also the biggest opportunity. Modern supermarkets and discount stores no longer use their refrigeration technology just to cool goods, but as an intelligent energy center for the entire building. cold.world ENGINEERING plans integrated CO2 systems that keep your products fresh and at the same time heat your store in winter.
Today’s standard: CO2 (R744) compound systems
There is no way around carbon dioxide for new buildings and fundamental renovations in food retail. We are planning transcritical CO2 booster systems that combine normal refrigeration (mopro, meat, vegetables) and deep-freezing in one cycle.
- Future-proof: R744 is not subject to any bans under the F-Gas Regulation. You invest once and have peace of mind from stricter legislation.
- Highly efficient (even in summer): Thanks to modern ejector technology and parallel compression, our systems operate extremely economically even at high outside temperatures.
- Compact: We plan space-saving solutions, often as indoor installations or compact rooftop control centers, in order to preserve valuable sales space.
Heating with the refrigerated counter: Integral concepts
The goal is the fossil-free supermarket. A modern supermarket no longer needs a gas connection or district heating.
Complete heat recovery: The waste heat from the refrigerated cabinets and freezers is not blown into the environment, but used 100% for heating the building.
Heat pump function: On very cold days, when the waste heat from the refrigeration units is not enough, the CO2 system switches to efficient heat pump mode.
Air conditioning included: In summer, the same system can be used to cool the sales area via the ventilation or ceiling cassettes (AC function).
Refurbishment of existing buildings: Out with R404A
Many existing stores still run on the climate-damaging refrigerant R404A. Maintenance costs are rising and the refrigerant is becoming scarce. We plan your changeover(retrofit or replacement) without affecting sales:
- Conversion during ongoing operations: We coordinate the measures so that your customers hardly notice anything. Use of temporary refrigeration during the conversion phase.
- Plug-in furniture (plug-in): As a supplement or for flexible layouts, we plan areas with plug-in R290 furniture (propane), which relieves the central system.
Noise protection & neighborhood
Supermarkets are often located in residential areas. A noisy refrigeration system on the roof causes trouble with residents.
- Whisper-quiet technology: We design condensers and gas coolers with extremely low noise levels and special enclosures.
- Night setback: Intelligent controls reduce the fan speeds at night to an inaudible minimum.
Frequently asked questions (supermarket)
Is CO2 also worthwhile for small markets? Yes. In the past, CO2 was only considered a technology for large hypermarkets. Today, there are very compact “mini-boosters” (condensing units) for small organic markets, petrol station stores or butchers, which are technically just as efficient as the large systems.
What happens in the event of a power failure? Product safety has priority. We integrate the refrigeration system and the control system into your emergency power concept and use modern refrigeration controllers that restart automatically and safely after a power failure (network monitoring included).