District cooling

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Reduce cooling energy consumption by 50% through higher energy utilization

Reduce cooling energy consumption by 50% through higher energy utilization

District cooling provides chilled water for indoor cooling purposes to industrial, commercial and residential buildings through a closed loop pipe network.

Functionally and technically, it is similar to district heating.

A district cooling system can reach an efficiency rate typically 5 or even 10 times higher than a traditional cooling system. 

The cold water used in a district cooling system can come from free sources such as sea water, or it can be produced from sources like waste heat with the use of steam turbine-driven or absorption chillers or electric chillers. 

Did you know?

  • District cooling is 5 to 10 times more energy efficient than conventional machine cooling 
  • District cooling can reduce cooling energy consumption by 50% through higher energy utilization

How does district cooling work?

District cooling delivers chilled water to offices, shopping malls, apartments and other kinds of buildings that need indoor cooling.

Through the district cooling network, the cooling plant pumps chilled supply water to buildings. The chilled water is fed into the individual buildings’ own cooling systems through a heat exchanger. 

When the water has cooled the building, it returns to the cooling plant at a higher temperature where it is chilled again and redistributed in a closed loop.

The cold water used in a district cooling system can come from free sources such as sea water, or it can be produced from sources like waste heat with the use of steam turbine-driven or absorption chillers or electric chillers.

Environmentally Friendly & Energy-Efficient Cooling Supply

Environmentally Friendly & Energy-Efficient Cooling Supply

District cooling can be produced from local natural resources like sea water, or from chillers running on steam or electricity, which makes it an environmentally friendly option. It is also a reliable and highly secure source of cooling.

District cooling can reduce cooling energy consumption by 50%. It can drastically reduce electricity use during peak demand periods, too. A network with electric chillers for cold storage helps reduce peak electricity demand for cooling in a city by shifting production to periods of the day or night when there is less run on the electrical network.

District cooling enables a green future

District cooling enables a green future

District cooling is becoming more and more relevant as the need for clean cooling increases worldwide.

In Europe alone, 40% of commercial and institutional buildings have cooling systems and that demand is growing. At the same time, CO2 reduction is high on political agendas.

Because of its combination of renewable and surplus energies, district cooling emits significantly less CO2 than conventional cooling systems and emits no hazardous refrigerants. 

District cooling infographic

Case studies

  • Reduced energy consumption with new heat exchangers in the district heating supply, Aarhus, Denmark

    A major renovation project in Aff aldVarme Aarhus (AVA), in collaboration with the Danfoss-owned company Sondex®, has increased the efficiency of the heat exchangers by more than 20 percent by replacing old plates with new ones.

  • District energy as the heating and cooling solution in Teknopark Istanbul, Turkey

    Building: Office
    Application: Production of heating, cooling and domestic hot water
    Challenge: Design and construct customized district energy solutions for all buildings on the park
    Solution: Danfoss  designed and constructed 3 pre-assembled DSE substations containing control valves for the heating, cooling and domestic hot water, heat meters, self-acting controllers and electronic controllers connected to a central Building Management System. 

  • Modernized district heating in a hospital, Belgrade, Serbia

    Building: Hospital
    Application: Heating + Domestic Hot Water production by district heating substations
    Challenge: Modernize old and inefficient heat and hot water system
    Solution: 58 fully equipped prefabricated substations

  • First ever district heating system with substations in Turkey

    600 residents in the town of Soma in Western Turkey now enjoy the comforts of a reliable and cheap heat supply from the town’s brand new district heating system. 

    In the coming years, more than 8,000 households will be joining the system that exploits the excess heat from the municipal power plant – a great improvement from the charcoal boilers of the past, and much less expensive.

  • Why Bleiburg opted for a CO₂ neutral district heating system, Bleiburg, Germany

    A district heating system that uses wood chips as fuel to supply the local community, with the intention of taking it a step closer to energy-independence.

Videos

Contact us

To learn more about district cooling solutions for your project please contact your local district energy expert.

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