polargy overview

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

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Dell

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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