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  • Darek Wichniewicz

Darek Wichniewicz

1 year ago

in What are the implications of deploying fresh air cooling in Data Centers? What kind of efficiency gain can I get from my cooling subsystems? | The Hot Aisle on The Hot Aisle
Steve,

our planned data centre is located in Warsaw, Poland so expected average daily temperature is 16-19 deg (in summer).

Please find some questions from our engineers below:

1. According to technical specification of several manufacturers products (servers and telco equipment), we assume that the temperature in our fresh-air cooled data centre (measured in RACKs) must not exceed 40C, and the humidity should fit between 10-80%. We think that maintaining the temperature just below 40C (without air-conditioning) should be just fine for the servers regular operations. Considering your knowledge and practical experience, would you confirm correctness of our assumptions?

2. Could you describe the parameters of the fresh-air cooled data centre you’ve had dealt with? I.e. avg/max: temp, humidity, power consumption / m2.

3. What was the attitude of the equipment vendors concerning warranty terms and conditions, when it came up that the equipment was operating in data center without air conditioning? Were they accepting this innovative approach to meet the environmental conditions?

4. Do you have any experience with fresh-air cooled used in Service Provider model? Were they rented to external customers, not only used by the owner?

We are preparing ourselves really seriously to design, build, test and operate a “green datacenter”, with no air-conditioning. We appreciate any suggestions and experience that you will share with us.

Kind regards,
Darek Wichniewicz
ATM SA
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