HVAC and Power Optimization. Andreas M Antonopoulos Senior Vice President & Founding Partner

Transkript

1 HVAC and Power Optimization Andreas M Antonopoulos Senior Vice President & Founding Partner

2 Agenda About Nemertes Optimization and Upgrade as Alternative to New Space Updating Cooling Updating Power Recommendations

3 About Nemertes Analyze business value of emerging technologies Advise Fortune 100-2,000 businesses on critical IT strategies t Benchmark reality h 2,500+ IT executives share strategies, costs, vendor satisfaction. Analysts have years experience, including operational Founded d 2002

4 Optimization as Alternate to BYODC and Outsourcing HVAC Optimization Power Optimization Optimization Management Systems

5 Power Usage Metric - PUE Only 35% - 50% of power actually reaches IT equipment 3.0 h HVAC consumes 45% of power h Power transmission-conversion loss consumes 5-20% 43% Only 45% organizations More measure data center power IT Power Only 15% of organizations have a power efficiency metric Power Use Efficiency (PUE) = % IT Power 1.87 Research Participants 1.37 Fortune Data Center < 1.0 -???? Main Power Feed Power Reaching IT Equipment

6 HVAC Mired in a profligate past Data center cooling technology has not changed in 20 years h Most recent broadly-used innovation is hot-aisle/cold-aisle Newer approaches h Reduced compression h Ultra-efficient fan systems h Air-side economizing h Direct exchange (DX) h Fractional load efficiency h Dry coil design In-row and In-rack computer room air conditioning (CRAC) Running data center at higher temperature Potential PUE of 1.25

7 HVAC Mired in a profligate past Data center cooling technology has not changed in 20 years h Most recent broadly-used innovation is hot-aisle/cold- aisle h Cool the room h Cool it all the time h Cool it a lot to keep hot spots livable

8 Get to the point In row In rack In chassis In chip

9 Put a Lid on It Once you have a hot aisle, putting a ceiling over it (with air intakes below) and a door at either end can boost chiller efficiency.

10 Other Approaches Newer approaches think refrigeration, not air conditioning h Reduced compression h Ultra-efficient fan systems h Air-side economizing vs refrigerant-side economizing recirculate inside air, pay less to filter outside air h Direct exchange (DX) air cooling, not water h Fractional load efficiency design to run efficiently even when less cooling is needed h Dry coil design don t pay to take all the water out, then pay to put some back in

11 Mo Hotter, Mo Better Hotter Data Centers h Aim at the high end 90, not 70 h Airflow is prime concern h Distribute heat sources h Remote management a bonus

12 Sensors and Monitoring Intelligent HVAC monitoring h Detect hot spots, dead spaces h Track humidity and temperature against outside environment h Facilitates tuning HVAC efficiency

13 Power Optimization Technologies Primary power loss is in UPS system 18% - 45% UPS efficiency directly proportional to load Most UPS systems are online systems h Pros Isolation for line AC guarantees stable power minutes hold time h Cons Space, cost and chemical hazard Line-Interactive UPS h Pros More efficient than online Uses standard batteries h Cons Requires very reliable and stable AC power

14 DC Direct? Fewer conversions increases efficiency DC in rack convert at PDU DC in row DC in data center convert at UPS

15 Rotary UPS Flywheel maintains rotational energy to drive generator when AC power fails Hold time of seconds Pros h No batteries h Inline with generator to Cons act as starter motor h Heavy h Mechanical system requires maintenance

16 Know More New systems that monitor data center power and cooling Intelligent power monitoring at server level h Can fingerprint servers based on power use patterns h Can identify inefficient systems and low utilization systems

17 Conclusions and Recommendations Instrument Measure and Track Adjust placement and flow As needed, upgrade cooling Plan for more efficient power Consider cooling and power aspects of every acquisition iti

18 Thank You Andreas M Antonopoulos Senior Vice President & Founding Partner