Moving to High Performance Design

530 views

Published on

Discussion on use of the Integrative Design Process (a new credit in LEED v4) to get to high levels of sustainable performance using a LEED Platinum project as an example

Published in: Design, Technology, Business
0 Comments
1 Like
Statistics
Notes
  • Be the first to comment

No Downloads
Views
Total views
530
On SlideShare
0
From Embeds
0
Number of Embeds
11
Actions
Shares
0
Downloads
21
Comments
0
Likes
1
Embeds 0
No embeds

No notes for slide

Moving to High Performance Design

  1. 1. Design Group April 30, 2014 Moving to High Performance Design
  2. 2. Carey Nagle BNIM Architects Scott Bowman KJWW Engineering Many slides are courtesy of BNIM Architects – Not all are referenced
  3. 3. Sustainability
  4. 4. Efficiency
  5. 5. High Performance
  6. 6. REGULATORY PRESSURES Codes and Standards
  7. 7. Measure Performance? • ASHRAE Standards (90.1) • Energy Star • Code (IECC) • LEED • IgCC • Green Globes • BREEAM
  8. 8. DOE 30% Reduction Target Courtesy PNNL ASHRAE 90.1-2013? ASHRAE 90-1975 ASHRAE 90A-1980 ASHRAE 90.1-1999 ASHRAE 90.1-2001 ASHRAE 90.1-2007 ASHRAE 90.1-2004 ASHRAE 90.1-1989 ASHRAE 90.1-2010 ASHRAE Standard 90.1EnergyUseIndex(1975Use=100) Year 1970 1975 1980 1985 1990 50 1995 20152000 20102005 110 100 90 80 70 60 14% 4.5% .5% 12.3% 4.5% 18.5%
  9. 9. Courtesy USGBCLEED v4? LEED
  10. 10. MOVING TO HIGH PERFORMANCE Integrative Design
  11. 11. © 2 0 1 2 B N I M © 2 0 1 2 B N I M
  12. 12. © 2 0 1 2 B N I M Owner Architects Consultants Utility Companies INTEGRATE = UNITE COLLABORATION + INTEGRATED DESIGN PROCESS
  13. 13. © 2 0 1 2 B N I M Use Less • Reduce Loads • Passive • Envelope Use Efficiently • System Selection • High Efficiency Make On Site • Renewable Energy • Portal to Future
  14. 14. Energy Modeling • Key to High Performance • Important to understand interaction • Many approximations – manage expectations • Know limits of software • Understand gross assumptions! • Move from isolated evaluations to bundling • Set early goals – Measure against them often!
  15. 15. 23% 44%
  16. 16. 42% 15% 21%
  17. 17. Why kBtu/sf • ASHRAE currently uses energy cost • Dollars reflect some local energy utilization and market conditions • Suppressed sources can obscure signals – Natural Gas – Renewable Energy (Wind or Solar) • Need to measure true performance • Location, Location, Location – 28 kBtu/sf means something in Iowa – What about Portland?
  18. 18. © 2 0 1 2 B N I M © 2 0 1 2 B N I M
  19. 19. © 2 0 1 2 B N I M Integration Leads to High Performance Iowa Utilities Board / Office of Consumer Advocate State of Iowa
  20. 20. © 2 0 1 2 B N I M Total EUI : 28.0 kBtu/sf/yr % Reduction from code base EUI 60% Model for other government & private sector entities LEED Platinum VISIONARY GOALS
  21. 21. © 2 0 1 2 B N I M Building Area 44,640 GSF Cost $204 Per GSF MODEST BUDGET
  22. 22. © 2 0 1 2 B N I M REPLICATION + INNOVATION REPLICATION INNOVATION • Passive Strategies First • Orientation + Planning • Shallow N-S Footprint depths • Daylighting • Natural Ventilation FLOOR PLAN
  23. 23. © 2 0 1 2 B N I M REPLICATION + INNOVATION REPLICATION INNOVATION • Passive Strategies First • Orientation + Planning • Shallow N-S Footprint depths • Daylighting • Natural Ventilation FLOOR PLAN
  24. 24. © 2 0 1 2 B N I M
  25. 25. © 2 0 1 2 B N I M
  26. 26. © 2 0 1 2 B N I M
  27. 27. © 2 0 1 2 B N I M
  28. 28. © 2 0 1 2 B N I M
  29. 29. © 2 0 1 2 B N I M
  30. 30. © 2 0 1 2 B N I M
  31. 31. © 2 0 1 2 B N I M
  32. 32. © 2 0 1 2 B N I M
  33. 33. © 2 0 1 2 B N I M
  34. 34. Replication + Innovation REPLICATION INNOVATION • Orientation • Shared Parking • Independent of Power Plant
  35. 35. © 2 0 1 2 B N I M
  36. 36. © 2 0 1 2 B N I M
  37. 37. REPLICATION INNOVATION • Solid West & East Envelope • Mitigate Heat Gain • Mitigate Glare
  38. 38. REPLICATION INNOVATION • Daylight / Windows • North Diffuse Daylight • Views • Light Tubes • Daylight Responsive Dimming • Daylight Harvesting Sunscreen • 98% Daylighting DAYLIGHTING STRATEGIES
  39. 39. REPLICATION INNOVATION • Light Shelf • Screen Shade • Daylight Harvesting Sunscreen • Parabolic Louver Blades
  40. 40. REPLICATION INNOVATION • High Angle Summer Daylight • Low Angle Winter Daylight
  41. 41. REPLICATION INNOVATION • Shorter Furniture Panel System Provides Full Daylighting 70% More of the Time as Compared to Existing
  42. 42. © 2 0 1 2 B N I M REPLICATION INNOVATION • Cost Effective Precast Envelope • Horizontal Windows • Daylight Harvesting System Becomes the Architecture
  43. 43. REPLICATION INNOVATION • Operable Windows • Weather Station • Building Automation System Alert • Systems Tie-In • Cost Effective NATURAL VENTILATION
  44. 44. REPLICATION INNOVATION • Good Thermal Envelope • Cost Effective Precast • Thermal Bridging Mitigation • Non-Conductive Precast System • Material Duality ENVELOPE
  45. 45. REPLICATION INNOVATION • Passive Strategies • Geothermal • Energy Recovery • Occupancy Sensors Per Workstation • Demand Controlled Ventilation • Building Automation System • Photovoltaic Panels ENERGY STRATEGIES
  46. 46. 19.1% of Building Energy Use RENEWABLE ENERGY REPLICATION INNOVATION • Passive First • Employ Loads Efficiently • Employ as Funding Becomes Available
  47. 47. Energy Monitoring LEED Measurement & Verification Electrical Circuits Monitored • Lighting • Plug Loads • Mechanical Equipment • General Building Loads • IT Equipment Geothermal Loop Data Collected by Capitol Complex Energy Management System REPLICATION INNOVATION • Ensures Intended Operation • Identifies Additional Savings • Provides Research and Demonstration Data
  48. 48. RESULTS $54,000 Annual Savings
  49. 49. 16.7 – 77% saved 26% 18% 24%20% 11%
  50. 50. Includes PV 75% 98%
  51. 51. Includes PV 75% 98%
  52. 52. MEASUREMENT AND VERIFICATION Second Year M&V Results: • Design Estimated Model EUI – with PV 28.1 • Monitored EUI – with PV 16.7 • Monitored EUI – without PV 21.2 Conclusions: • Model over predicted pumping energy – software limited • Model slightly over predicted lighting savings • Plug loads are significantly lower than design expectations • Corrected energy model tracks actual use well • Tools supported good decision making! Energy Star = 100
  53. 53. Awards and Recognitions • AIA Committee On The Environment – Top 10 Green Building Award 2012 – Top 10 Plus in 2014 • ASHRAE Technology Award – Second Place in 2014 • AIA Central States Region Merit Award • AIA Iowa Merit Award • Des Moines’ Environmental Impact Awards – Built Environment Award
  54. 54. http://bt.e-ditionsbyfry.com/publication/?i=200800&p=38
  55. 55. © 2 0 1 2 B N I M Moving to High Performance Design Questions?
  56. 56. SELF REPORTING GBCI CREDIT
  57. 57. SELF REPORTING GBCI CREDIT
  58. 58. SELF REPORTING GBCI CREDIT
  59. 59. SELF REPORTING GBCI CREDIT
  60. 60. SELF REPORTING GBCI CREDIT
  61. 61. SELF REPORTING GBCI CREDIT See document provided that can be used to cut and past the suggested information to get CE credit.

×