AFCO SYSTEMS Asks: What's In Your Data Center?

What’s in Your Data Center? A Comparative Look at Five Major Design Approaches to Data Center Layout & Design John Consoli CTO, AFCO Systems Inc. 1

Advanced Energy Research Technology Center (AERTC) The Advanced Energy Research and Technology Center (AERTC) is a true partnership of Academic institutions, Research institutions, Energy providers and Industrial Corporations. Its mission is innovative energy research, education and technology deployment with a focus on efficiency, conservation, renewable energy and nanotechnology applications for new and novel sources of energy. 2

EPA Report to Congress August 2007 Power Cooling Efficiency Scenario Descriptions Gain Improved Improve Airflow Management 30% Operation Best Practice Improved Transformers 70% Improved UPS Systems Higher Efficiency Mechanical Components Chillers Fans Pumps Free Cooling Economizers State-of-the-Art Direct Liquid Cooling 80% Combined Heat and Power 3

The “Crossroads” ASHRAE 2009 Winter Conference “The rack is no longer industrial shelving, it is the point where the Mission of Facilities meets the Aspirations of IT” 4

5 Approaches  Hot Aisle / Cold Aisle  Cold Aisle Containment  In Row Cooling w Hot Aisle Containment  Overhead Supplemental Cooling  Chimney Cabinet / Ducted Return  Fan Assisted Cabinets /Ducted Return 5

Study Methodology  3200 Square Foot Room  Populated with 100 Cabinets  12 ft Slab to Ceiling (2ft Plenum)  Modeled at 2,4,8,12 & 16kW  54F Supply Air Temp  Static Pressure .025 H2O  Avg 150cfm per kW of Heat Load  Random Distribution of Load  CFD Modeling / Empirical Validation 6

Comparative Analysis  Effectiveness: Does it “WORK” (*2007 ASHRAE Guidelines for Datacom Equipment 77F Inlet)  Efficiency Waste Reduction  Robustness ability of the system to perform under “less than optimal” conditions Impact (Cost Savings) Cap Ex, Op Ex and Infrastructure *2008 Guidelines raised to 80.6F 7

The Set Ups Overview of Layouts 8

HA / CA Configuration COLD Aisles 9

Cold Aisle Containment Contained Cold Aisle 10

In Row Cooling with Hot Aisle Containment In Row Cooling Units Contained Hot Aisles 11

Supplemental Overhead Cooling Overhead Cooling Units 12

Ducted Return Air Plenum Return Air Plenum “Passive Chimney Cabinets” 13

Engineered Enclosure Solution Variable Speed Relief Fans Digital Control / Display Hot Air Containment Supplem ental Supply Air Prim Supply Air (Adjustable) ary 14

Performance  Did it Improve Air Flow Management??? Legacy Server 2 ft 2008/09 Server 16 ft 15

Hot Aisle / Cold Aisle 4 kW 6 kW 16

INFRARED Photo of Hot / Cold Aisle 17

Overhead Supplemental Cooling @ 6kW 18

Overhead Supplemental Cooling 12 kW 16 kW 19

In Row Cooling with Hot Aisle Containment 12 kW 16 kW 20

In Row Cooling, Contained Hot Aisle High Velocity, Low Static Pressure 21

The Results Performance Review Performance Review 22

Effectiveness at 16kW Technology Overheated Max Inlet Servers Temperature (°F) HACA 100 109.3 Fan Assist Cabinet 0 62.86 In Row Cooling 0 72.3 Cold Aisle Containment 0 65.09 Overhead Supplemental Cooling 0 74.04 Ducted Return (no fans) 71 103.3 23

Hot Aisle / Cold Aisle Active Efficiency at 100 100 16kW Frequency 80 Frequency 60 50 40 0 20 53 77 85 61 69 93 1 9 re 0 10 10 Mo Temperature (°F) 49 57 65 73 81 89 97 5 re 10 Mo Temperature (°F) In Row Cooling with Hot Aisle Containment Cold Aisle Containment 100 100 80 80 Frequency Frequency 60 60 40 40 20 20 0 0 49 57 65 73 81 89 97 49 57 65 73 81 89 97 5 5 re re 10 10 Mo Mo Temperature (°F) Temperature (°F) Overhead Cooling Cabinets Ducted to Hot Air Plenum 100 100 Narrow Band 80 80 Frequency Frequency 60 60 Represents 40 40 20 20 0 0 better CONTROL 53 61 69 77 85 93 49 57 65 73 81 89 97 1 9 5 re re 10 10 10 Mo Mo Temperature (°F) Temperature (°F) 24

Robustness Study at 12 kW Maximum Inlet Temperature with Full Blanking Plates and with 30% Blanking Plates Removed Full Blanking Plates 30% of Blanking Plates Removed HACA 102°F 105.8°F Active Ducted 68.66°F 69.44°F In Row 74.36°F 71.52°F CAC 65.06°F 68.83°F Overhead 76.79°F 89.47°F Ducted 90.43°F 95.11°F 25

Average Maximum Server Inlet Temperature at Various Loading Densities 4kW 8kW 16kW Hot Aisle / Cold Aisle 70.45 85.60 99.22 Ducted Active Fan Assist 69.50 69.52 58.26 In Row Cooling with Hot Aisle Containment 66.27 64.28 58.33 Cold Aisle Containment 63.89 63.41 54.65 Overhead Cooling 68.01 66.16 59.88 Chimney Cabinets Ducted Return 77.87 77.28 85.72 26

Summary  The Cabinet is an Integral Component of the Cooling System  Controlling Airflow Enhances Effectiveness and Efficiency  The Comparative Analysis establishes the need for CONTROL  Future Studies will quantify the Impact to the Bottom Line  AERTC needs your participation in further studies 27

Thank You! For a copy of the study: AERTC Tony Wilson awilson@afcosystems.com 28

AFCO SYSTEMS Asks: What's In Your Data Center?

by AFCO_Systems on Jul 06, 2009

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AFCO SYSTEMS Asks: What’s In Your Data Center? — Presentation Transcript

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