For safe and efficient data centre cooling

Cooling of IT equipment in data centres is an increasing challenge for operators and design engineers. Power management is the major challenge, with energy consumption and heat loads increasing in step with the server density. Meeting these challenges is essential for ensuring the safety and availability of the data. 

Other important factors are:

  • Cost optimization: cooling can be up to 50% of the overall energy cost in a data centre 
  • Precise humidity control and better control of static electricity
  • Minimum start-up current for situations where the power grid is sensitive to load, reduced downtime, and increased lifetime of the overall system

Why choose our variable speed compressors for process cooling?
The first major benefit is the overall energy saving. 

Other benefits include:

  • Flexibility with combined compressor and free cooling 
  • Quick and smooth adaptation to varying loads; Danfoss inverter technology modulates cooling between 25 and 100%, saving substantial amounts of energy, especially in part-load operation. Experience shows that savings of up to 50% can be achieved in energy consumption. This significantly reduces the PUE values (ratio of power supplied to the data centre divided by power consumed by the IT infrastructure) (see Figure 1).

Figure 1: Potential energy saving in a packaged unit equipped with a single inverter compressor compared with a unit equipped with a fixed-speed compressor.

  • Actual energy efficiency improvements will vary depending on the data centre design and the configuration of the cooling systems. However, recent experience has shown that installing a VSH variable speed compressor solution into a unit previously using traditional On-Off compressors can reduce the annual energy consumption of the cooling unit by as much as 50%. Danfoss inverter scroll compressors are the most energy-efficient solutions available on the market today.
  • Stable and precise temperature control, with very consistent and stepless adaptation to required cooling load. Whatever the variation in ambient temperature or outside temperature, the system can maintain a set point temperature to within ±0.2°C thanks to the capacity modulation system (see below figures).
  • Reduced noise under partial load conditions facilitates the integration of the unit in the surrounding.
  • Reduced start-up current is an additional benefit with variable speed technologies, since the compressor rarely needs to start at full load, and since the Danfoss inverter has a very soft start with very low in-rush current. This benefit solves the problems that arise in areas where electric power is unstable, avoiding a peak in demand.

Products

  • Turbocor® - TG - Danfoss
    Turbocor® - TG

    Danfoss Turbocor® model TG oil free compressors are available in four different models ranging from 40 tons to 150 tons / 140 kW to 540kW utilizing ultra-low GWP HFO1234ze.

  • Turbocor® - TT - Danfoss
    Turbocor® - TT

    Danfoss Turbocor® model TT oil free compressors are available in four different models ranging from 60 tons to 200 tons / 200 to 700 kW utilizing R134a or non-flammable, low GWP R513A. 

  • Turbocor® - VTT - Danfoss
    Turbocor® - VTT

    Danfoss Turbocor® model VTT oil free compressor is available with a capacity up to 400 tons / 1430 kW using R134a.  This compressor is designed for water and evaporative cooled chiller applications.

  • Inverter scrolls - VZH - Danfoss
    Inverter scrolls - VZH

    Danfoss inverter scroll compressor VZH offers effectiveness and reliability. Over 30% energy savings is possible in rooftops, chillers, close controls etc.

  • Danfoss VRJ inverter scroll compressor
    Inverter scrolls - VRJ

    Danfoss inverter scroll compressor solutions for commercial air conditioning and process-cooling applications. R410A, single units. VSH: first-generation commercial inverter scroll compressors with frequency converter CDS302. VZH: second-generation commercial inverter scroll compressors with frequency converter CDS303. VRJ: first high-tier residential inverter scroll compressors with frequency converter CDS801.

Case studies

  • Danfoss Turbocor® TG
    Oil-free centrifugal compressors: from R134a to R1234ze

    The Danfoss Turbocor® TG310 compressor is the first 60-90TR compressor introduced with R1234ze refrigerant, a refrigerant with an extremely low global warming potential.

  • Wind power danfoss
    Wind power

    Wind turbine producing water cooled by an energy efficient refrigeration system featuring inverter scroll compressor

  • data center with inverter danfoss
    Data center cooling: efficient and reliable with inverter

    Example of data center cooling featuring inverter technology that reaches low PUE, saves energy and costs and secures data process.

  • Data center cooling danfoss
    Data center cooling

    A world leading company in wireless technologies opt for three 1,400-ton chillers powered by 21 Danfoss Turbocor™ compressors to improve efficiency and lower costs at data center.

  • hotel with chiller danfoss
    Hotel with chiller retrofit

    Inverter chiller retrofit brings huge savings in a five star hotel installation, operating and maintenance costs, with compact Danfoss inverter oil–free compressor Turbocor®.

  • process chillers danfoss
    Process chillers

    Variable speed with Danfoss Turbocor Oil free centrifugal compressor guarantees reliable process cooling and efficient comfort cooling in factory

Contact us

For further information, please contact us.