Much has been said about the energy efficiency
of higher three-phase alternating current (ac) voltages as well as direct
current (dc) solutions for data centers.
ASHRAE is getting ready to finalize its third edition of TC 9.9. In advance of the release expected later this year, it has just published a 45-page white paper titled, “2011 Thermal Guidelines for Data Processing Environments – Expanded Data Center Classes and Usage Guidance,” which is now publicly available from ASHRAE.
Why we still don’t understand contained aisles and why we need to take more care in their design. 2011 ASHRAE guidelines are the beginning of a new era in data center air cooling.
For a data center owner with a growing need of additional data center or infrastructure capacity, acquiring a company or its data center assets may be a good option. It