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Cooling datacentres and a other stuff

Learn about UNI•C's green approach to optimizing cooling systems, reducing power consumption, and increasing efficiency in data centres. Discover tips on intelligent houses, awareness campaigns, and general considerations for a sustainable IT environment.

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Cooling datacentres and a other stuff

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  1. Cooling datacentres and a other stuff Ole Kjærgaard Technical Director, Mail: Ole.Kjaergaard@uni-c.dk

  2. First some facts UNI•C - Danish IT Centre for Education and Research • UNI•C is an agency under the Danish Ministry of Education. UNI•C delivers a variety of IT services to the educational and research communities. More than one million users regularly benefit from UNI•C’s services and products. • UNI•C has more than 300 employees, and offices in Copenhagen, Lyngby and Aarhus.

  3. Our green approach • The datacentre (approx. 1.500 sqm.) • Finding power consuming devices • Awareness campaigns • Intelligent houses

  4. The datacentre • Optimizing air-flow • Cold and hot aisles • Placing down-flow units • Optimizing cooling machines • Free cooling • Controlling the cooling machines • Use IT equipment with low power consumption • Remember to turn off old equipment • Virtualize • Know your power consumption

  5. Cooling machines • Free cooling • Intelligent control Increase water temp.

  6. Before and after optimization

  7. Cooling in the datacentre Increase air temp. Placing down-flow units

  8. Finding optimal places for down-flow units

  9. Power Usage Effectiveness - PUE • PUE is the total power consumption in the datacentre (incl. UPS, cooling etc.) divided by the consumption from the IT equipment. A typical value in older datacentres is a PUE-value between 2,0 and 2,5. PUE=2 means that for each Watt spend on the IT equipment, another Watt is used in UPS, cooling etc.

  10. Our PUE

  11. What is your power consumption? • The IT guys do typically not know the power consumption in the data centre • The power bill is normally paid by the ones responsible for rent, cleaning etc. • But this is not the case at UNI•C…

  12. Finding equipment that uses power (looking for sources of heat)

  13. Example • Which machine has the highest stand-by consumption?

  14. Results… • Printers • Xerox multifunction (daytime) 93 W • HP Color 4700 17 W • HP Color 3700 14 W • HP S/H 2200 11 W • Mailing/postage machine 7 W • Fax 37 W

  15. Awareness campaigns • Buy some (good) energy meters • Distribute them!

  16. My office PC • Guess the power consumption?

  17. The answer is… • 140 W • Remember to turn the PC off at the end of each working day • Do not use screensavers with pcitures on the screen (NO flying windows…) • Use remote desktop/terminal servers for home/remote work

  18. Intelligent houses • Connecting light and access control/alarm • Use standby functions (Coffee makers, printers etc) • Simple things (on/off timers) • Motion detectors • Light sensors

  19. General considerations • Think CO2 instead of energy consumption • Use green energy when possible • Manufacturing also contribute to CO2 • 30% of the total CO2 emission from a car during its entire life comes from the production…

  20. What do you do?? Questions or comments?

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