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Data Center Containment October 2009
Polargy, Inc.256 Gibraltar Drive, Suite 155Sunnyvale, CA 94089888.816.8338www.polargy.com
Containment is about isolating hot air from cold air
Containment seals above and around racks and prevents mixing
No sealing above and around racks allows mixing and lets cold air escape without doing any work
Containment: Isolating All Air Flow
The Room
The Rack
The Floor
Curtains
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Strip Doors
Above Rack
Panels
FullLengthPanels
Horizontal Panels
VerticalPanels
Sliding Doors
Panels
PolargyAn airflow solutions company
Dell
Animation Company Dell
PolargyAn airflow solutions company
Verizon
CalPERS
RACK RACK RACK RACK RACK RACK
Three Containment Models
Walls•Curtains•Usually in drop ceiling sites•Hot or Cold Aisle Containment
Stovepipe•Curtains or Panels•Typically in open grid ceiling sites•Hot or Cold Aisle Containment •Used when site has structural or fire safety constraints
Cap •Panels•For both drop ceiling and open grid ceiling sites•Usually Cold Aisle Containment •If in-row cooling, then Hot Aisle Containment
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MONITOR TUNECONTAIN
• Above racks• Aisle ends• Blanking• Floor gaps• Plenum returns• Ducted CRAHs
• Temperature • Pressure• Humidity• Power• Cooling plant• PUE
• Set points• CRAH on/off• Alarms• Automated Controls
The cooling efficiency stack
Polargy CoolTune™ Program
PolarPlexPolarRackPolarDAM
Site:2000 square foot, high density site
Problem: High energy bills, hot air recirculation under racks.
Containment: Cold aisle containment with panels and strip curtains on aisle ends. Contained two cold aisle. Blanking panels and Air Dam Foam under racks.
Cooling:Available cooling: 200 tonsAverage cooling load: 150 tonsAverage IT load: 350 kWCooling required for 330kW: 103 tonsExcess cooling: 47 tons
Savings:CRAC reduction1 CRAC turned off, 2 put in standby
Annual Savings: $30,000 validated by PG&EInvestment: $18,000Rebate: $9,000 rebate from PG&E
Payback Period: 4.0 months
Polargy Containment Case Study