Tcc cooling

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Data Center Cooling Efficiency, Optimization, and Trade-offs

Presented byTeladata

Sponsored byCAPS


Senior Vice President

“Cooling Efficiency Enthusiast”

Greg Stover, NER Data Corporation


a focus onInfrastructure Optimization Solutions

For data center cooling, and monitoring efficiency!

Greg Stover, NER Data Corporation


Best in Class Partners


Energy Efficiency Is Important


Data and Title 24

The California Investor Owned Utilities (IOUs) are actively supporting the California Energy Commission (CEC) in developing the state’s building energy efficiency code (Title 24)

Their joint intent is to achieve significant energy savings through the development of reasonable, responsible, and cost-effective code change proposals for the 2011 code update and beyond. To go into effect January 1, 2013

As part of the IOU effort, at the request of the CEC, they have been hosting stakeholder meetings to get industry input and feedback on the code change proposals

What Does It Mean?


Data Centers and Title 24

• VAV/VFD’s on CRAC/H’s - will likely be a requirement• Containment - Separation of Hot and Cold air streams will

likely be a requirement – No position being taken on Hot vs. Cold

• Economization – Utilization of “free cooling” will be required (water or airside)

• Require Adiabatic humidification- (evaporative or ultra sonic)• Performance Methods - always an option!

Some Things to Expect:

These will likely become new code



• Cold Aisle top caps & end caps - (Both raised floor and overhead delivery)

• Hot Aisle vertical partitions - (using ceiling plenum as a return)• Hot Aisle containment with row based/close coupled cooling - (CMS-

APC-Liebert)• In rack liquid cooling - Like the Rittal design• Combined Hot & Cold Aisle - (closed loop) – Cold air flows thru bottom

of cabinet, to chimney/ceiling return like the Verari design.• Heat Containment Chimneys - Both passive and pressure managed

Providing direct plenum exhaust return path.

Containment examples sited at stakeholders meeting included:



• Packaged and/or custom Hot Aisle containment – Like Wrightline’s design and other custom heat containment rooms.

• In rack liquid Cooling – Like Knurr design• Rear door Heat Exchanger – Like Vette/Cool Centric and

future CMS designs• Liquid Cooling “Clustered Systems” - This complies as it is

liquid cooled, not fan cooled

Containment examples sited at stakeholders meeting included:


The Basics - Simplify

• Get cold air where it needs to be, when it needs to be there, in just the right amount

• Removing heat before it can mix/or cause hot spots


The Basics - Simplify

4 keys to cooling efficiency success1. Cooling side - Supply efficiency2. Airflow/supply - Delivery efficiency3. Heat/exhaust side - removal efficiency4. Supply temp to Inlet temp delta - Narrowing

that delta


How You Save Money

Mechanisms to realize cooling efficiency1. Reduce or eliminate oversupply2. Safely raise supply air temperatures3. Safely raise chilled water temperatures4. Increase economization utilization


How You Save Money


High Efficiency Cooling

Close coupledRow based

AdiabaticEvaporativeHumidification

•Direct drive ECM Motors•Motor moved out of fan Housing•Innovative Airfoil Fan design•Straight fin Coils•Non-Proprietary parts•Custom Capabilities•40-70% more efficient (measureable)•Chilled Water only today (stay tuned)

High Efficiency CRAC/H Air Handlers


High Efficiency Cooling


Improving / Managing AirflowAdaptivCool Hot Spotr Acool Air Mover Opengate Chimney

•Thermo or pressure controlled•Up to 1200 CFM•Fits under std. size perf. Tile•Can be networked to AdaptivCool monitoring system

•Overhead installation•Hot air return to CRAC intake•Thermo controlled•Two temp sensors•1200 CFM

•Block back door•Retrofit or new cabinets•Hot air return to CRAC intake•Match exhaust CFM to server CFM•10/20/30kW•Per rack designs


Demand Based Cooling


Ultimate Airflow Management•Closed loop cooling circuit•Normalize temperature throughout data center •Pressure based airflow•Performance independent of IT equipment type•Cost savings: Reduced energy, operational and capital cost


Ultimate Airflow Management•No longer play to worst case rack or row•Zero pressure environment•Elevated CRAC/H return air temp•Elevated supply air temp


Ultimate Airflow Management

•Flexible supply delivery•Maximum supply temp•All cool air available for IT load•Consistent inlet temps•Rack load indifference•Max. supply/return delta T=performance•Increased ride-thru time•Modular and Scalable•Comfortable place to work


Infrastructure Optimization

• Put the savings in your pocket (reduce Op-Ex)• Increase your capacity/Manageable load• Increase redundancy• Extend the useful life of your Data Centers• Save the Planet

It is a rare opportunity when you can save money,improve sustainability and better our planet!

What can you do with efficiency gains?


Infrastructure Optimization

Green is good, for the planet and your wallet!

Efficiency is not an event, it’s a process

Cooling efficiency/airflow optimization isthe #2 opportunity to save in thedata center


Some Recommendations

• Measure and Monitor your Power & Heat• Eliminate problems/inefficiencies caused by heat & air mixing• Use Solutions that are demand/load responsive• Work with the Utilities – On the front side for rebates

Incentives• Become a pro-active partner with Facilities• Benchmark/Baseline, Plan & model/visualize for the Future!• Come see us Room #205 -CAPS Luxury Suites


Thank you for attending!

Technology

Tcc cooling