Energy Efficiency and CHP Opportunities for Data Centers

Transcription

1 Energy Efficiency and CHP Opportunities for Data Centers Webinar #4: Case Studies of Data Centers Implementing Energy Efficiency and Combined Heat & Power Systems The 4th in a 4-Part Series of Educational Webinars Targeting Sustainable Energy Management in Data Centers offered by The Midwest CHP Application Center September 10, 2009 In Partnership with the US DOE Audio portion of webinar requires call-in at access code:

2 Data Center Webinar Series Schedule! Tuesday, September 1, pm CST Webinar #1: Assessing Energy Efficiency Performance in Data Centers Utilizing US DOE Software Tools! Thursday, September 3, pm CST - Webinar #2: Understanding Energy Efficiency Concepts and Technologies for Data Centers! Wednesday, September 9, pm CST Webinar #3: Combined Heat & Power (CHP) Opportunities for Data Centers! Thursday, September 10, pm CST Webinar #4: Case Studies of Data Centers Implementing Energy Efficiency and CHP Systems In Partnership with the US DOE 2009 The Trustees of the University of Illinois at Chicago 2

3 The Midwest CHP Application Center (MAC)! Established in March 2001! Founded for the U.S. Department of Energy at University of Illinois at Chicago s Energy Resources Center (UIC/ERC)! The mission of the MAC is to develop technology application knowledge and the educational infrastructure necessary to foster CHP as viable technical and financial energy / environmental option! Midwest CHP Application Center Contact Information: - Web Site: - John Cuttica, Director: cuttica@uic.edu (312) Elaine Kulawiak: ekulaw2@uic.edu (312) In Partnership with the US DOE 2009 The Trustees of the University of Illinois at Chicago 3

4 Webinar Procedures! To avoid background noise, participants are muted as they enter the meeting! Please submit questions during the presentation by typing them into the chat window area of the screen. Include which speaker they are for.! Questions submitted via the chat window will be answered following the presentation! Any questions not answered during the webinar will be posted and answered on the Center s website! Please complete the online survey immediately following meeting! For those with multiple viewer at one location, please submit an attendance list so we know who has attended (name, company, address and phone number) In Partnership with the US DOE 2009 The Trustees of the University of Illinois at Chicago 4

5 September 10 th, 2009 Midwest CHP Application Center CHP for Data Centers NetApp s B11 Data Center Ralph Renne, Director of Site Operations, NetApp

6 Agenda! Who is NetApp?! NetApp s Building 11 Data Center! The Cogeneration Operations in B11! Final Thoughts NetApp Confidential. 6

7 $4B $3B $2B $1B NetApp at a Glance FY09: $3.5 Billion *! Broad portfolio of Data Storage solutions! Comprehensive professional services! Global support! Industry-leading partners! 135+ offices around the world! ~8000 employees! Fortune 1000, S&P 500, NASDAQ NetApp Confidential. NetApp Confidential - Limited Use 7 * Non-GAAP Revenue

8 A Great Place to Work Around the World Netherlands: #11 Germany: #9 United Kingdom: #4 100 BEST 2009 outline USA: #1 Top 50 in Silicon Valley DC: #2 France: #14 Waltham: #6 RTP: #2 EMEA: #11 India*: #9 Australia: #2 NetApp Confidential. NetApp Confidential - Limited Use 8 * Hewitt Best Places List

9 Leaders Rely on NetApp Mission Critical Enterprise Scale 12+ PB Demanding Workloads 18+ PB 6.5+ PB 6.5+ PB 350M inboxes on 80+ PB 1.3 million accounts 290M transaction per month NetApp Confidential. NetApp Confidential - Limited Use 9

10 Supporting $3.5B Enterprise with a Globally Distributed IT Organization! 6 Data Centers: Americas (3), Europe, India; Hong Kong! Over 100 Applications; 6 Tier 1 Apps! Over 260 FAS Systems / 1500 Servers! 2.5+ PB storage NetApp Confidential. 10

11 NetApp B11 Corporate IT Data Center, Sunnyvale, CA-Multi-use Building Retrofit,! Hot-Cold Aisle placement! Vertical containment! Optimized air handling! Limited use of mechanical cooling system! Maximized FREE cooling! Air Handlers with Outside Air Side Economizers! Variable speed fans! Use of outside air (~68% of the year.) NetApp Confidential. 11

12 B11 Data Center Design Features! 6,638 ft2 of IT space 10,014 ft2 Total including Mech/Elec rooms! ~ kw/rack! PUE = 1.42! N+1 Mechanical, 2N Electrical! Hot/Cold aisle arrangement! Free Cooling via Outside Air economizers! 1125 kw Cogeneration system with 318 tons of adsorption chillers! DCCCP (Data Center Cooling Controls Program): Installed wireless sensor array at the face of the IT equipment. 70 Degree F SAT Hot aisle containment using soft barriers Simplex Vinyl Curtains NetApp Confidential. 12

13 Electricity Consumption of Typical Data Centers IT Rack Power Facility Infrastructure Power IT Rack Power 1 unit of power here = 1 unit of power here PUE = 2.0 (total facility power/it power) NetApp Confidential. 13

14 Electricity Consumption of NetApp s B11 Data Center IT Rack Power Facility Infrastructure Power 1 unit of power here = 0.42 unit of power here PUE = 1.42 (total facility power/it power) NetApp Confidential. 14

15 Challenged Traditional Assumptions to improve Data Center Efficiency (PUE)! Broaden operating range for temperature and humidity Based on IT equipment specifications Use the wider allowable ASHRAE psychometric range Use air side economizer with appropriate filtration Reduced Demand on cooling systems with Higher supply air temperature Higher supply air temperature More hours of air side economizer! Implement Containment of Hot/Cold aisles Increases Delta T across Hot/Cold aisles Reduces short circuiting Optimizes fan horsepower by increased Delta T at AHU! Eliminate raised floor Overhead air distribution takes advantage of cold/hot air buoyancy Rack weight exceeds raised floor rolling load limits Use overhead cabling NetApp Confidential. 15

16 B11 DC Mechanical & Electrical Assets! 8 CRAH units 33Ton Hunt Air Air Handlers 14,000 CFM, Dual plug fans with 7,000 CFM, Vane Axial Exhaust Fans with Economizers (N+1)! 2 Each 250Ton Trane Screw Chillers (2N)! 3-Cell Evapco Cooling Towers (N+1)! 3-106T Nishiyodo Adsorption Chillers! 3-375kW Hess Microgen Reciprocating Engines! 2-720kW Active Power Flywheel UPS s (2N)! Dual Distribution Systems, K13 Transformers, Dual Starline Bus (2N)! kW Cummins Diesel Generators NetApp Confidential. 16

17 B11 Layout NetApp Confidential. 17

18 B11 Cogeneration Plant Layout NetApp Confidential. 18

19 B11 DC - Cogen Operations Monitoring NetApp Confidential. 19

20 HESS Microgen - Prime Mover Specs NetApp Confidential. 20

21 Operation of Nishiyodo 106-ton Adsorption Chillers! COP between 0.5 and 0.7.! Exhaust heat exchangers generate hot water to approximately 185 Degrees F to drive the adsorption cycle! Adsorption chillers operate continuously in this cycle: 1. In chamber 1 - The heated water from the engine waste heat drives the water out from the sorbent material, effectively regenerating its capacity to adsorb, 2. In chamber 2 - Silica-gel desiccants chill water from approximate 85 F down to 45 F by adsorbing water vapor from the evaporator, 3. The released water vapor condenses and flows back into the evaporator. 4. When the sorbent in the chamber 2 is saturated with water, the evaporator switches to chamber 1 to continue the chilling process, and the cycle is repeated. NetApp Confidential. 21

22 B11 DC One-Line Diagram NetApp Confidential. 22

23 B11 DC One-Line Diagram NetApp Confidential. 23

24 Operating on an Economic basis! Cogeneration System is used to reduce Utility Import and generate cost savings! Favorable natural gas pricing makes the economics! Fixed Forward Natural Gas procurement practice was risk management to ensure the economic advantage was sustainable! Cogeneration System is operated only during the local Utility s Summer Rate Season! kw units are operated as base load generation! 3 rd unit is dispatched upon failure! Requirement is to maintain a 200 kw Utility import to ensure that the system will not reverse power to the Utility NetApp Confidential. 24

25 Economic Dispatch Schedule - IKUN NetApp Confidential. 25

26 Operational Challenges HESS Microgen withdrew from Industry! Had to find new Maintenance Contractorchallenged with executing a comprehensive maintenance contract! Had to find a new control system Nexgen was a proprietary system and no longer supported! Installed new control system ComAp and improved system operation with load following controls! Fortunately purchased 3 new motors and generators from HESS prior to closure so spare parts/inventory was available! Challenged with maintaining Uptime/Availability ~ 93.8% NetApp Confidential. 26

27 B11 DC ComAp Interface NetApp Confidential. 27

28 Final Thoughts for Cogeneration Ops Other Considerations! During a Demand Response Event, Interconnection agreements could be relaxed (32R relays disabled) to further reduce import or even export power to the Utility! In order for Cogeneration Systems to serve as back up, the Utility import needs to be minimized and strict load management controls has to be in place to minimize voltage sags and surges, and frequency deviations! Depending on the Data Center Design, cogeneration economics will be dictated by the mechanical cooling requirements NetApp s Free Cooling during the winter season reduces/eliminates the adsorption system contribution NetApp Confidential. 28

29 First National Bank of Omaha First National Bank Data Center Phil Higgins

30 Power our data center with PC 25 Fuel Cells

31 Cumming Onan 2500 watt Generators back up Fuel cells Have two utility feeds coming into center

32 Heat recovery from the fuel cells is used to melt the snow in our court yard as well as heat the facility.

33 Redundant Chill water heat exchangers with back up chiller

34 All AHUs are on VFDs we are also able to cool the building using economizers

35 Thank You for Attending! Time for Questions Reminders:! The Environmental Protection Agency s Combined Heat & Power Partnership (CHPP) is hosting a webinar titled, CHP Opportunities, Challenges, and Applications at Data Centers on September 17, 2009 at 3:00PM EST. Registration: Please fill out the post meeting survey! For more information, contact Elaine Kulawiak at and/or ekulaw2@uic.edu In Partnership with the US DOE 2009 The Trustees of the University of Illinois at Chicago 35