The document summarizes a presentation given at a 2010 sustainability conference about energy efficiency strategies implemented at the University of California, Irvine campus. It describes how the campus formed an energy savings team to reduce energy usage in lab buildings, which consume two-thirds of the campus energy. Strategies presented included demand controlled ventilation, low flow fume hoods, lighting controls, exhaust system optimizations like variable speed fans and stack modifications, and wind tunnel testing to study exhaust system performance. Implementation of these strategies across four lab buildings achieved estimated annual energy savings of over 2 million kWh and paybacks of less than 10 years.

1. 2010 Higher Education Sustainability Conference Los Angeles Trade Tech College June 22, 2010 Chris Abbamonto UC Irvine, Facilities Management

2. The University of California, Office of the President is a Registered Provider with The American Institute of Architects Continuing Education Systems. Credit earned on completion of this program will be reported to CES Records for AIA members. Certificates of Completion for non-AIA members are available on request. This program is registered with the AIA/CES for continuing professional education. As such, it does not include content that may be deemed or construed to be an approval or endorsement by the AIA of any material of construction or any method or manner of handling, using, distributing, or dealing in any material or product. Questions related to specific materials, methods, and services will be addressed at the conclusion of this presentation.

6. Campus Energy Savings Team Synergy Safety Management Visionary & Supportive Upper Management Engineers Facility Managers Patience Supportive Users/ Researchers

9. Smart Lab Building Concept Building Exhaust System Labs w/CDCV real time lab air monitoring 4 ach occupied 2 ach unoccupied Energy efficient lighting Labs with low flow fume hoods (as appropriate )

11. Low Flow (high performance) Fume Hoods Sash Airfoil Work Surface Exhaust Plenum Baffle Increased Hood Depth Operate safely at lower face velocities (i.e. 70 FPM rather than 100 FPM)

12. Lighting Controls Reduce Power Density by 50% Lab Area LPD from 1.1 to 0.6 Lab Prep LPD from 1.0 to 0.4 Prep Room LPD from 2.0 to 1.0 Corridor LPD from 0.6 to 0.3

13. Exhaust Energy Reduction Solutions Slightly higher stacks, 4-5 feet Variable speed fans (reduce exhaust fan flows) Install wind responsive equipment (if needed) Reduce or eliminate bypass air

16. Lab Building Exhaust Wind Exhaust Fan Bypass Damper Plenum Fume Hood Supply Fan Duct Balcony Re-Entrainment of Contaminated Air

17. Wind Tunnel Testing Challenge Conservative Assumptions

25. Summary of Savings 0.8 $ 224,910 $ 171,840 514,080 2,142,000 TOTALS: 9.8 $ 30,135 $ 296,120 68,880 287,000 Hewitt Hall 1.1 $ 97,545 $ 108,040 222,960 929,000 Natural Sciences 2 6.2 $ 36,120 $ 224,440 82,560 344,000 Croul Hall 0.9 $ 61,110 $ 57,320 139,680 582,000 Sprague Hall Years $ 0.105 Project Cost $ 0.24 kWh Savings Building Simple Payback Electrical Savings Net Incentive

27. Thank you for your time! QUESTIONS?? This concludes The American Institute of Architects Continuing Education Systems Program