DATA CENTER COOLING INNOVATIVE COOLING TECHNOLOGIES FOR YOUR DATA CENTER

Transcription

1 DATA CENTER COOLING INNOVATIVE COOLING TECHNOLOGIES FOR YOUR DATA CENTER

2 DATA CENTERS 2009 IT Emissions = Aviation Industry Emissions Nations Largest Commercial Consumers of Electric Power Greenpeace estimates the worlds data centers will use 2,000 Billion kwh of electricity by 2020 More energy than currently used by France, Germany, Canada & Brazil Combined Data Processing Equipment = 50% of Power Use Cooling System = 50% of Power Use ***Greatest Opportunity To Save Power!!!

3 DATA CENTER COOLING Free Cooling, Heat Recovery & Adiabatic Efficiency & Reliability Carbon Footprint Reduction High Density Server Cooling Technology Heat Neutral White Space

4 IMAGINARY FREE COOLING LINE

5 Direct Air Side Economizer In Typical Winter Mode 75 F Exhaust Air Chiller Data Center Exhaust Duct 75 F Humidifie r Mixing Box 60 F 30 F Outside Air Raised Floor 60 F Fan Filters Air Handlers

6 DIRECT AIR SIDE ECONOMIZER Significant Energy Savings Potential Most Free-Cooling Hours 100% Free-Cooling at 60 F Ambient Mother Nature does all the work!

7 DIRECT AIR SIDE ECONOMIZER Complications and Risk Factors Low Relative Humidity = Static Electric 30 F 40% RH is heated to 75 10% RH Unacceptable in Data Centers Large Volumes of Outside Air Require High Efficiency Filtration of Airborne Contaminants Dependence on continuous city water make-up for the humidifiers

8

9 WATER-COOLED WITH FREE COOLING Partial Free Cooling Starts at 35 F Wet-Bulb 7 F Approach above Wet-Bulb 10 F Approach on Free Cooling Heat Exchanger Requirements: Continuous, Uninterrupted Supply of Make-up Water for Cooling Tower Water Treatment System & Maintenance Valuable Indoor Space for Chiller & Free Cooling Heat Exchanger

10 WATER-COOLED WITH FREE COOLING Complications and Risk Factors Cooling tower water can become too cold for the condensers in the chiller Winter operation changeover can threaten the availability of uninterrupted cooling Dependence on continuous city water make-up for the cooling towers

11

12 STUDY BY JACOBS ENGINEERING IN ENGINEERED SYSTEMS MAGAZINE Absorbed Energy is only part of the equation Assume a 15 year Life Cycle Cost Analysis with energy at $.10 kwh Water costs $2.50 / 100 cu ft in Pennsylvania and $2.90 / 100 cu ft in NC Sewage costs at $1.70 / 100 cu ft in PA and $2.60 cu ft in NC

13 STD. WATER-COOLED CHILLER VS. AIR COOLED WITH FREE COOLING

14 AIR COOLED CHILLER WITH INTEGRATED WATER SIDE ECONOMIZER

15 AIR COOLED CHILLER WITH INTEGRATED WATER SIDE ECONOMIZER No make-up water required Lower installation cost Increased reliability of a totally packaged system Operation & Start-up at Low Ambient Temps

16 MAXIMIZING CHILLER EFFICIENCIES Increase Chilled Water Temperatures Increase chiller capacity by 30% when producing 60F water compared to 44F water! Reduce overall chiller HP by using a smaller compressor plant. Higher efficiencies Higher chilled water temps allow for more water-side economizing

17 OPERATION AT 44/54/95 WITH FREE COOLING

18 OPERATION AT 60/70/95 WITH FREE COOLING

19 FREE COOLING CHILLED WATER PLANT Use the highest Chilled Water Temps as possible Maximize Available Free Cooling hours Use Redundant N +1 chillers to provide additional Free Cooling hours when possible

20 HEAT RECOVERY Data Centers in Southern US Climates High Humidity Make-up Air Vapor-Pressure Equalization Dehumidification Cycle Simultaneous Cooling and Free Reheating CRAC or AHU s with Hot-Water-Reheat-Coils

21 SIMULTANEOUS HEAT RECOVERY AIR OR WATER COOLED CHILLER

22 500-Ton Data Center Operation for Atlanta, GA QTY (20) 25-Ton CRAC Units Electric Reheat: (20) CRAC Units each with 22.5 kw Each = 450 kw Total Installed Electric Heat Electric Rate of $0.10/kWh Dehumidification Required 20% of the year: # (24 hours x 365 days x 450kW x $0.10/kWh) x 0.20 = $78, Approximate Additional Demand Charge = $10, Total Estimated Operating Cost Savings: = $88, per year

23 EER COMPARISON Air Cooled Chiller vs. Air Cooled Chiller w ith Heat Recovery EER (44/54/95 with R-22) MHR-A

24 NEW ASHRAE GUIDELINES FOR DATA CENTER DESIGN Temperatures inside the computer room raised from 77F to 80F 4% Energy Savings for every degree! Chilled water can be as high as 65F Extended Free Cooling area in Southern States Dramatic Increase in Efficiency & Energy Savings

25 TRADITIONAL CRAC APPROACH

26 NEW INNOVATIVE COOLING TECHNOLOGY TO TACKLE HIGH DENSITY SERVERS High Density Server Racks Up to 45 kw per rack Future Server Technology Densities are rising! Innovative Rack Cooling Approach Removes Heat Directly at the Source Eliminates the Intermediate Stage of CRAC or Air Handling Units

27 RACK COOLING APPROACH In-Row Rack Coolers 30 kw per 12 wide cooler (not per rack) Aisle containment systems required Passive Rear Door Rack Coolers 20 to 25 kw per rack maximum Rely on server fans to provide airflow across coil Active Rear Door Rack Coolers Up to 45 kw per rack maximum Energy efficient EC centrifugal plug fans Utilize Higher, More Efficient Chilled Water Temps

28 ACTIVE REAR DOOR RACK COOLING

29 ACTIVE REAR DOOR COOLERS Reduce Carbon Footprint of your Data Center Fewer Racks Required Lower Duty, More Efficient Chiller Can Utilize Natural Resources (Lake; River; etc.) Eliminate Data Center Hot Spots Heat Neutral White Space Individual Rack Control PLC Optimizes Fan Speed & Water Flow

30 SAMPLE CITIES FREE COOLING

31 LATEST TECHNOLOGY

32 USING THE LATEST TECHNOLOGY IN A SYSTEM

33 NEW HIGH EFFICIENCY ADIABATIC CHILLERS

34

35 SETTING THE STAGE FOR HIGHER PROCESS COOLING EFFICIENCIES Elevate Chilled Water supply temperatures Air-Cooled chillers now capable of making Chilled water at 65F+ Perfect for water-side economizing Fills the void between traditional chillers and cooling towers Warmer chilled water with no tower treatment

36 IN REVIEW Elevated chilled water temps offer increased efficiencies and Free Cooling hours Free Cooling, Heat Recovery & Adiabatic chillers can increase system efficiency and improve HVAC design Increase Air Temperatures in data centers Move data center cooling solutions closer to the racks for improved efficiencies and higher density cooling

37 Presented by John Morris Regional Sales Manager