Case Study: 2030 Challenge and Beyond




Bae-Won Koh, AIA, LEED AP
Vice President, Director of Design
Innovative Design, ...
Project Background
  Topography of New Orleans




         Andrew H. Wilson Elementary School
Project Background

    New Orleans Section




         Andrew H. Wilson Elementary School
Project Background

  Flooded - Katrina            Accessory Bldg




         Andrew H. Wilson Elementary School
Project Background

  Broadmoor Lives!
   Broadmoor Neighborhood Revival

     Active neighborhood leadership
      reach ...
Project Background

  Who’s involved?




         Andrew H. Wilson Elementary School
Project Background
  Recovery School District

  Broadmoor Neighborhood
  Association Lobby City Council
  for one of five...
Project Background
  Original Design by E.A. Christy




     Staff Architect for Orleans Parish School Board
     1909-19...
Project Background
  Original Design by E.A. Christy

     Existing Building = Good Bones

     •   3- Story Heavy Masonry...
Project Background




                                         west elevation




                                       ...
Project Background




                                          existing hallway
               existing
               c...
Project Background
  Program = 96,000 sq ft

     Head Start – 8th Grade; 2 classes per grade
     Multi-Media Center/Libr...
Project Background
  Program
     Original Program included a Neighborhood YMCA @ 60,000 sq ft
     •    No funding
     •...
Project Background
  Site
     Situated on one city block 300’ x 280’
     •    Retain mature oak trees
     •    100% Run...
Project Background

  Site
  Redevelopment of
  Existing Site
  Porous Pavement
  reduces runoff by
  50%
  Bicycle Racks
...
Project Background

  West Elevation




         Andrew H. Wilson Elementary School
Project Background

  North Elevation




         Andrew H. Wilson Elementary School
Project Background

  South Elevation




         Andrew H. Wilson Elementary School
Project Background

  East Elevation




         Andrew H. Wilson Elementary School
Project Details

   Project Challenges & Collaboration
      Clinton Global Initiative & USGBC brought focus to
      sust...
Project Details

    Project Challenges & Collaboration (cont’d)
        Global Green Funding – Model School
    9 Solar D...
Project Details

   Project Challenges & Collaboration (cont’d)
   Wetland Design




           Andrew H. Wilson Elementa...
Project Details

    Project Challenges & Collaboration (cont’d)
        MEP Engineers had little experience in green buil...
Project Details
   Project Challenges & Collaboration (cont’d)
      FEMA required flood proofing first floor per TB 3-93
...
Project Details
   Project Challenges & Collaboration (cont’d)
          Reverse swimming pool & storm gates
      •




 ...
Project Details
   Project Challenges & Collaboration Successes
      Reuse of existing classroom spaces minimized rework
...
Green Design Strategies

  How to meet 2030 Challenge
     Target
     Key strategies
     Energy Modeling results
     Ke...
Green Design Strategies

  How to meet 2030 Challenge
     Target

   2030            EnergyStar    RSD’s
   Challenge    ...
Green Design Strategies

  How to meet 2030 Challenge




          Andrew H. Wilson Elementary School
Green Design Strategies

  How to meet 2030 Challenge
                       Efficient
    Orientation        Thermal     ...
Green Design Strategies

  How to meet 2030 Challenge
Energy Modeling Result

               61.5

                       ...
Green Design Strategies

   How to meet 2030 Challenge
Orientation




             Btu/SF Glass/day - 32° Latitude

     ...
Green Design Strategies

    How to meet 2030 Challenge
Efficient Thermal Envelope
     High SRI value (=110) roof coating...
Green Design Strategies

    How to meet 2030 Challenge
Efficient Thermal Envelope
     Open-cell spray foam insulation ad...
Green Design Strategies

    How to meet 2030 Challenge
Efficient Thermal Envelope
     Radiant Barrier to existing buildi...
Green Design Strategies

    How to meet 2030 Challenge
Efficient Thermal Envelope


           51.1

                  43...
Green Design Strategies

  How to meet 2030 Challenge
Daylighting
     Keys to Good Daylighting?

         Consider human ...
Green Design Strategies

  How to meet 2030 Challenge
Daylighting

     Human factor - 2/3 of occupied hours to turn light...
Green Design Strategies

  How to meet 2030 Challenge
Why Daylighting?


     Reducing your operating cost
     Increasing...
Green Design Strategies

  How to meet 2030 Challenge
                    ½ heat
Why Daylighting?
                        ...
Green Design Strategies

  How to meet 2030 Challenge
Daylighting
     Eliminate direct beam radiation from entering criti...
Green Design Strategies

  How to meet 2030 Challenge
Daylighting
     Optimize overhang for winter heat gain and summer
 ...
Green Design Strategies

    How to meet 2030 Challenge
    Daylighting
       • Maximize Visible Light Transmittance
    ...
Green Design Strategies

  How to meet 2030 Challenge
  Daylighting
     • Maximize Visible Light Transmittance

         ...
Green Design Strategies

   How to meet 2030 Challenge
   Daylighting
       Low-e glazing will require 10% to 30% more
  ...
Green Design Strategies

  How to meet 2030 Challenge
  Daylighting
     Slope ceiling to enhance light reaching deeper
  ...
Project Background

  How to meet 2030 Challenge
  Daylighting
     • Various daylighting strategies per room functions,
 ...
Green Design Strategies
  How to meet 2030 Challenge
  Daylighting
     Complement daylighting with appropriate lighting
 ...
Green Design Strategies
  How to meet 2030 Challenge
  Daylighting
     Lamp, dimming control, and ballast must be
     co...
Green Design Strategies
  How to meet 2030 Challenge
  Daylighting
     6 feet is maximum distance between ballast and
   ...
Green Design Strategies

  How to meet 2030 Challenge
Daylighting Design Tools

     Utilize design tools that can simulat...
Green Design Strategies

  How to meet 2030 Challenge
Daylighting – South, Small Spaces, Low Ceiling

          Exterior L...
Green Design Strategies

  How to meet 2030 Challenge
Daylighting – South, Small Spaces, Low Ceiling

     Reversed Blinds...
Green Design Strategies

  How to meet 2030 Challenge
Daylighting – South, Small Spaces, Low Ceiling

     Utilize separat...
Green Design Strategies

  How to meet 2030 Challenge
Daylighting – South, Small Spaces, Low Ceiling




          Andrew ...
Green Design Strategies

  How to meet 2030 Challenge
Daylighting – South, Large Spaces, Low Ceiling

       Exterior Ligh...
Green Design Strategies

  How to meet 2030 Challenge
Daylighting – South, Large Spaces, Low Ceiling




          Andrew ...
Green Design Strategies

  How to meet 2030 Challenge
Daylighting – South, Large Spaces, Low Ceiling




          Andrew ...
Project Details
                                      Computer Lab
   Project Challenges & Collaboration Successes




   ...
Project Details
                                Library/Media Room
   Project Challenges & Collaboration Successes




   ...
Project Details
                                          Cafeteria
   Project Challenges & Collaboration Successes




  ...
Green Design Strategies

   How to meet 2030 Challenge
 Daylighting – South, Large Spaces, High Ceiling

          Roof Mo...
Green Design Strategies

  How to meet 2030 Challenge
Daylighting – South, Large Spaces, High Ceiling
     Translucent baf...
Green Design Strategies

  How to meet 2030 Challenge
Daylighting – South, Large Spaces, High Ceiling




          Andrew...
Green Design Strategies

  How to meet 2030 Challenge
Daylighting – South, Large Spaces, High Ceiling
     High SRI roof e...
Project Details
                                       Choir Room
   Project Challenges & Collaboration Successes




    ...
Project Details
                                       Gymnasium
   Project Challenges & Collaboration Successes




     ...
Project Details
                                      South Exterior
   Project Challenges & Collaboration Successes




 ...
Green Design Strategies

    How to meet 2030 Challenge
  Daylighting – East & West, Classrooms

        Vertical Fabric B...
Green Design Strategies

  How to meet 2030 Challenge
Daylighting – East & West, Classrooms




                          ...
Green Design Strategies

  How to meet 2030 Challenge
Daylighting – East & West, Classrooms
     Utilize directional (angl...
Green Design Strategies

  How to meet 2030 Challenge
Daylighting – East & West, Classrooms




          Andrew H. Wilson...
West Classroom

  Project Challenges & Collaboration Successes




         Andrew H. Wilson Elementary School
Green Design Strategies

  How to meet 2030 Challenge
Daylighting – North, Classrooms

       Occupancy Sensor + Photosens...
Green Design Strategies

  How to meet 2030 Challenge
Daylighting – North, Classrooms




          Andrew H. Wilson Eleme...
Green Design Strategies

  How to meet 2030 Challenge
Daylighting




                      41.6

                        ...
Green Design Strategies

    How to meet 2030 Challenge
Efficient Lighting and Control
     Lighting Power Density

     E...
Green Design Strategies

    How to meet 2030 Challenge
Efficient Lighting and Control

     Indirect Lighting




     Cl...
Green Design Strategies

    How to meet 2030 Challenge
Efficient Lighting and Control

     Daylight & Occupancy Sensors
...
Green Design Strategies

    How to meet 2030 Challenge
Efficient Lighting and Control




                            35....
Green Design Strategies

    How to meet 2030 Challenge
Efficient HVAC

     Heat Recovery Ventilation

     Heat Recovery...
Green Design Strategies

    How to meet 2030 Challenge
Efficient HVAC




                                  33.5   32.5

...
Green Design Strategies

   How to meet 2030 Challenge
Solar Domestic Hot Water
                                          ...
Green Design Strategies

  How to meet 2030 Challenge
Photovoltaics




          Andrew H. Wilson Elementary School
Green Design Strategies

  How to meet 2030 Challenge
SDHW & PV




                                       32.5    31.2


...
Green Design Strategies

   How to meet 2030 Challenge
Steps To Reduce Further
     Plug-in load reduction
     • EnergySt...
Project Background

  Key Green Strategies
     Stormwater control
     • Rainwater collection from the roof
     • Permea...
Project Background

  Key Green Strategies
      Rainwater Reuse Studies
      • Various scenarios – Toilets vs Irrigation...
Project Background

  Key Green Strategies
     Permeable Paving in Courtyard
     • The amount of liquid asphalt is criti...
Project Background

  Key Green Strategies
     Bioswales and Constructed Wetland
     • Goal was to treat 100% stormwater...
Green Design Strategies

    Key Green Strategies
         Energy Efficient Building Shell
                               ...
Project Background

  Key Green Strategies
     Water Efficiency
     • Rainwater reuse for irrigation
     • High efficie...
Project Background

  Key Green Strategies
     Renewable Energy
     • 2.4kW Photovoltaics
     • Solar domestic hot wate...
Project Background

  Key Green Strategies
     Material Selections & Reuse
     • Existing building reuse
     • Recycled...
Project Background

      Key Green Strategies
          Building as a Teaching Tool
          • Web-based monitoring syst...
Project Background

  Key Green Strategies
     Web-based monitoring system
     • Total Electricity, Gas & Water Usage
  ...
Project Background

  Key Green Strategies
     Interpretive Signs Throughout Site
     • Overall Green Design
     • Rain...
Project Background

  Key Green Strategies
     Sundial




          Andrew H. Wilson Elementary School
Project Background

  Key Green Strategies
     Education Sessions for Students and Staff
     • Tour for entire students
...
Project Background

  LEED Gold Targeted

           Yes    Maybe
  SS        8        6
  WE        3        3
  EA      ...
Contact Information


Bae-Won Koh, AIA, LEED AP
Vice President, Director of Design
Innovative Design, Inc. (Tel) 919-832-6...
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Bae Won Koh Handout Gulf Coast Green Symposium 2009, Houston, Texas

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Bae Won Koh Handout

  1. 1. Case Study: 2030 Challenge and Beyond Bae-Won Koh, AIA, LEED AP Vice President, Director of Design Innovative Design, Inc. Andrew H. Wilson Elementary School
  2. 2. Project Background Topography of New Orleans Andrew H. Wilson Elementary School
  3. 3. Project Background New Orleans Section Andrew H. Wilson Elementary School
  4. 4. Project Background Flooded - Katrina Accessory Bldg Andrew H. Wilson Elementary School
  5. 5. Project Background Broadmoor Lives! Broadmoor Neighborhood Revival Active neighborhood leadership reach out to various agencies • Clinton Global Initiative • Global Green • NREL • DOE Wilson School relocated to temporary facility Andrew H. Wilson Elementary School
  6. 6. Project Background Who’s involved? Andrew H. Wilson Elementary School
  7. 7. Project Background Recovery School District Broadmoor Neighborhood Association Lobby City Council for one of five Recovery School District Quick Start Schools Andrew H. Wilson Elementary School
  8. 8. Project Background Original Design by E.A. Christy Staff Architect for Orleans Parish School Board 1909-1940 • Original Structure Built in 1909 • Addition Built 3 years later • One of 50+/- Schools Designed by Christy Andrew H. Wilson Elementary School
  9. 9. Project Background Original Design by E.A. Christy Existing Building = Good Bones • 3- Story Heavy Masonry with Plaster • Wood Construction with Large Awning Windows • 12’ Ceilings, 15’ Corridors • Transom Windows – Cross Ventilation • Terracotta Roof Tiles with Large Overhangs • Cement Plaster walls and Ceilings • T&G Wood Flooring Andrew H. Wilson Elementary School
  10. 10. Project Background west elevation north elevation Andrew H. Wilson Elementary School
  11. 11. Project Background existing hallway existing classroom Andrew H. Wilson Elementary School
  12. 12. Project Background Program = 96,000 sq ft Head Start – 8th Grade; 2 classes per grade Multi-Media Center/Library Music & Choral Art Room Gymnasium Special Education Cafetorium & Kitchen Science Class Computer Lab Administrative • Principal’s Suite, Asst. Principal's Suite w/ Counselors & Nurse, Teacher’s Lounge, Conference Room, Maintenance Dept. Andrew H. Wilson Elementary School
  13. 13. Project Background Program Original Program included a Neighborhood YMCA @ 60,000 sq ft • No funding • Too big for site Designed to Preliminary Master Plan Program • 20 Students per class • 50 sq ft per student • Too big for site Redesigned to reuse existing classrooms @ 600-1000 sq ft • Just Right • More environmentally conscience • Kept original framing – replaced plaster Andrew H. Wilson Elementary School
  14. 14. Project Background Site Situated on one city block 300’ x 280’ • Retain mature oak trees • 100% Runoff • Pumping system designed to take runoff • Paving and subsurface drainage to recharge groundwater • Collect roof runoff in cistern, use for landscape irrigation Replace damaged one story structure with new 3 story wing • Creates protected courtyard for playground w/ basketball hoop • Front and side yards fenced for Toddlers / play equipment segregated from older children Exterior science classroom design – wetland retention pond populated with native plants for water filtration • Not funded Andrew H. Wilson Elementary School
  15. 15. Project Background Site Redevelopment of Existing Site Porous Pavement reduces runoff by 50% Bicycle Racks Major portion of existing building facing E & W Andrew H. Wilson Elementary School
  16. 16. Project Background West Elevation Andrew H. Wilson Elementary School
  17. 17. Project Background North Elevation Andrew H. Wilson Elementary School
  18. 18. Project Background South Elevation Andrew H. Wilson Elementary School
  19. 19. Project Background East Elevation Andrew H. Wilson Elementary School
  20. 20. Project Details Project Challenges & Collaboration Clinton Global Initiative & USGBC brought focus to sustainable strategies, provided free LEED NC workshops for all RSD contracted Architects, Designers and consultants USGBC paid LEED registration fees, monitored progress State provide Commissioning Corp. NREL & DOE helped develop daylighting calcs for systems design Global Green provided seed money for special projects Andrew H. Wilson Elementary School
  21. 21. Project Details Project Challenges & Collaboration (cont’d) Global Green Funding – Model School 9 Solar Domestic Hot Water panels that will be installed above the • kitchen to serve 90% of the hot water demand for the kitchen. One 12,000-gallon above ground cistern that will collect and store • rainwater for irrigation purposes. Web-based display technology that will illustrate energy and water • usage. The school will be able to use the data for educational purposes and to monitor carbon offset. Wetland habitat with 90% native species to serve as an outdoor • educational classroom and to reduce the quantity and improve the quality of storm water leaving the site. Interpretive signage to be posted in and around the school to identify • and provide information about the school's green technology. Andrew H. Wilson Elementary School
  22. 22. Project Details Project Challenges & Collaboration (cont’d) Wetland Design Andrew H. Wilson Elementary School
  23. 23. Project Details Project Challenges & Collaboration (cont’d) MEP Engineers had little experience in green building Needed sustainable goals established at early stage – Energy and • Water efficiency goals Needed various documents to keep them on board • Responsibility Matrix • Sustainable Goals Narratives • Lighting Control Table • ASHRAE 55-2004 Thermal Comfort documentation and samples • CO2 Monitoring Guidance • Innovative ran Daysim analysis • Innovative ran e-Quest DOE-2 model • Innovative reviewed their equipment selection • Innovative introduced ICLS design guidance • Innovative provided schematic diagrams of Photovoltaics, Solar Hot • Water, Web-monitoring and Rainwater Collection Needed to prove to engineers prior to owner – i.e. Payback from • occupancy sensor and daylight sensor Andrew H. Wilson Elementary School
  24. 24. Project Details Project Challenges & Collaboration (cont’d) FEMA required flood proofing first floor per TB 3-93 Andrew H. Wilson Elementary School
  25. 25. Project Details Project Challenges & Collaboration (cont’d) Reverse swimming pool & storm gates • Andrew H. Wilson Elementary School
  26. 26. Project Details Project Challenges & Collaboration Successes Reuse of existing classroom spaces minimized rework of building – ENHANCED REUSE Salvage the historic quality of the spaces, • Maintain cultural continuity • “I went to school where my grandparents went to school!” Expanded the presence of the school in the neighborhood • Opportunities for community use after school hours Separate entrances for communal spaces • Catalyst for continued community development • and reinforcement of neighborhood bond Andrew H. Wilson Elementary School
  27. 27. Green Design Strategies How to meet 2030 Challenge Target Key strategies Energy Modeling results Key daylighting designs and analysis Steps to reduce further Andrew H. Wilson Elementary School
  28. 28. Green Design Strategies How to meet 2030 Challenge Target 2030 EnergyStar RSD’s Challenge Target Finder Requirement 50% below 90 30% below CBECS 2003 ASHRAE 90.1- (West South 2004 Central) 30.7 kbtu/sf/yr 28.2 kbtu/sf/yr 35.8 kbtu/sf/yr Design Case 31.2 kbtu/sf/yr Andrew H. Wilson Elementary School
  29. 29. Green Design Strategies How to meet 2030 Challenge Andrew H. Wilson Elementary School
  30. 30. Green Design Strategies How to meet 2030 Challenge Efficient Orientation Thermal Daylighting Envelope Efficient Efficient Thermal Lighting & HVAC Mass Control Solar Water PV Heating Andrew H. Wilson Elementary School
  31. 31. Green Design Strategies How to meet 2030 Challenge Energy Modeling Result 61.5 51.1 43.4 41.6 35.0 33.5 Kbtu/sf/yr 32.5 31.2 Andrew H. Wilson Elementary School
  32. 32. Green Design Strategies How to meet 2030 Challenge Orientation Btu/SF Glass/day - 32° Latitude Andrew H. Wilson Elementary School
  33. 33. Green Design Strategies How to meet 2030 Challenge Efficient Thermal Envelope High SRI value (=110) roof coating R-30 Roof and Wall Insulation (Code: R-13 for roof and R-0 for wall) Cont. Spray Foam Closed Cell (R-6.75/in) Andrew H. Wilson Elementary School
  34. 34. Green Design Strategies How to meet 2030 Challenge Efficient Thermal Envelope Open-cell spray foam insulation added to existing masonry exterior walls (R-30 in 12 inch furring) CMU walls for thermal mass Cont. Spray Foam Open Cell (R-3.5/in) Andrew H. Wilson Elementary School
  35. 35. Green Design Strategies How to meet 2030 Challenge Efficient Thermal Envelope Radiant Barrier to existing building roof Low-E argon filled glazing in view windows SHGC = 0.40 (Max.) Tvis = 0.74 (Min.) Andrew H. Wilson Elementary School
  36. 36. Green Design Strategies How to meet 2030 Challenge Efficient Thermal Envelope 51.1 43.4 41.6 Andrew H. Wilson Elementary School
  37. 37. Green Design Strategies How to meet 2030 Challenge Daylighting Keys to Good Daylighting? Consider human factors • Consider the energy ramifications • Account for site constraints and benefits • Select well-integrated daylighting strategies • Optimize the most appropriate daylighting • strategies Accurately simulate daylighting performance • Verify and modify your design process • Andrew H. Wilson Elementary School
  38. 38. Green Design Strategies How to meet 2030 Challenge Daylighting Human factor - 2/3 of occupied hours to turn lights off to impact behavioral pattern Selective strategies per function, depth, orientation and darkening requirement Selective glazing Andrew H. Wilson Elementary School
  39. 39. Green Design Strategies How to meet 2030 Challenge Why Daylighting? Reducing your operating cost Increasing productivity Designing buildings that teach Protecting our environment Designing for health, safety and comfort Supporting community values Andrew H. Wilson Elementary School
  40. 40. Green Design Strategies How to meet 2030 Challenge ½ heat Why Daylighting? same light Reduce cooling equipment sizes to account for smaller lighting load Efficacy: Lumens / Watt Andrew H. Wilson Elementary School
  41. 41. Green Design Strategies How to meet 2030 Challenge Daylighting Eliminate direct beam radiation from entering critical spaces Consider the need to darken spaces Don’t count on low glass Andrew H. Wilson Elementary School
  42. 42. Green Design Strategies How to meet 2030 Challenge Daylighting Optimize overhang for winter heat gain and summer sun angle Consider installing 10 footcandles less light in daylit spaces that naturally provide at least this amount, even on snowy, overcast days …. unless night time use dictates full light levels Andrew H. Wilson Elementary School
  43. 43. Green Design Strategies How to meet 2030 Challenge Daylighting • Maximize Visible Light Transmittance Application Exposure Type south clear double, low-e north clear double, low-e view glass (non-daylighting apertures) east/west - unshaded tinted double, low-e east/west - shaded clear double, low-e clear double or triple w/ B-B-G windows above lightshelves south or interior lightshelves and clear double high windows above view north clear double glass roof monitors south clear double Andrew H. Wilson Elementary School
  44. 44. Green Design Strategies How to meet 2030 Challenge Daylighting • Maximize Visible Light Transmittance Glass Transmittance 100 90 80 Transmittance in percent 70 60 50 40 30 20 10 0 300 400 600 900 1900 Wavelength in nanometers Andrew H. Wilson Elementary School
  45. 45. Green Design Strategies How to meet 2030 Challenge Daylighting Low-e glazing will require 10% to 30% more glazing area and component Glazing Type VLT Glazing Area Factor Clear- double .80 1.0 Low-e (10% reduction) .72 1.1 Low-e (30% reduction) .56 1.4 Clear-double w/ BBG .52 1.5 Clear-triple w/ BBG .45 1.8 1” fiber filled .30 2.7 2-3” fiber filled .20 4.0 Andrew H. Wilson Elementary School
  46. 46. Green Design Strategies How to meet 2030 Challenge Daylighting Slope ceiling to enhance light reaching deeper Rule-of thumb: Add one-half of a percentage point to g-t-r ratio if ceiling is flat Drop ceiling Andrew H. Wilson Elementary School
  47. 47. Project Background How to meet 2030 Challenge Daylighting • Various daylighting strategies per room functions, orientations, height and room depths • Photo sensors and dimming ballasts • Occupancy sensors • Careful interior color selections Color Reflectance Gloss White 75% Semi-gloss White 70% Light Green* 53% Kelly Green* 49% Medium Blue* 49% Medium Yellow* 47% Medium Orange* 42% Medium Green* 41% Medium Red* 20% Medium Brown* 16% Dark Blue-Grey* 6% Dark Brown* 12% Andrew H. Wilson Elementary School
  48. 48. Green Design Strategies How to meet 2030 Challenge Daylighting Complement daylighting with appropriate lighting fixtures and controls Implement continuous dimming or staged lighting control strategies Andrew H. Wilson Elementary School
  49. 49. Green Design Strategies How to meet 2030 Challenge Daylighting Lamp, dimming control, and ballast must be compatible. Manufacturers don’t have data on the effects of low- level dimming on lamp life. Make sure lamps within the fixture are wired correctly (series vs. parallel). Parallel creates higher voltage. Your controls should not kick in at a “high” dimming level – start at full light/full power and dim down to appropriate level. Andrew H. Wilson Elementary School
  50. 50. Green Design Strategies How to meet 2030 Challenge Daylighting 6 feet is maximum distance between ballast and lamp. Improper seating of the lamp into the socket creates arching and shortening of lamp life. Stopping dimming at 20% may produce better lamp life. Andrew H. Wilson Elementary School
  51. 51. Green Design Strategies How to meet 2030 Challenge Daylighting Design Tools Utilize design tools that can simulate hourly performance Import hourly schedule to DOE-2 model to simulate energy saving from daylighting Daylite Solarsoft Daysim National Research Council, Canada Lumen Micro 2000 Lighting Technology Inc. Radiance USDOE/University of California Superlite University of Michigan Andrew H. Wilson Elementary School
  52. 52. Green Design Strategies How to meet 2030 Challenge Daylighting – South, Small Spaces, Low Ceiling Exterior Lightshelf + Blinds Between Glass Occupancy Sensor + Indirect Lighting + Task Lighting SLOPED CEILING Offices Andrew H. Wilson Elementary School
  53. 53. Green Design Strategies How to meet 2030 Challenge Daylighting – South, Small Spaces, Low Ceiling Reversed Blinds Between Glass 30 degrees Andrew H. Wilson Elementary School
  54. 54. Green Design Strategies How to meet 2030 Challenge Daylighting – South, Small Spaces, Low Ceiling Utilize separate window treatment for lower (view) glass Andrew H. Wilson Elementary School
  55. 55. Green Design Strategies How to meet 2030 Challenge Daylighting – South, Small Spaces, Low Ceiling Andrew H. Wilson Elementary School
  56. 56. Green Design Strategies How to meet 2030 Challenge Daylighting – South, Large Spaces, Low Ceiling Exterior Lightshelf + Interior Lightshelf Occupancy Sensor + Photosensor SLOPED CEILING Classroom & Library Andrew H. Wilson Elementary School
  57. 57. Green Design Strategies How to meet 2030 Challenge Daylighting – South, Large Spaces, Low Ceiling Andrew H. Wilson Elementary School
  58. 58. Green Design Strategies How to meet 2030 Challenge Daylighting – South, Large Spaces, Low Ceiling Andrew H. Wilson Elementary School
  59. 59. Project Details Computer Lab Project Challenges & Collaboration Successes Andrew H. Wilson Elementary School
  60. 60. Project Details Library/Media Room Project Challenges & Collaboration Successes Andrew H. Wilson Elementary School
  61. 61. Project Details Cafeteria Project Challenges & Collaboration Successes Andrew H. Wilson Elementary School
  62. 62. Green Design Strategies How to meet 2030 Challenge Daylighting – South, Large Spaces, High Ceiling Roof Monitor + Overhang + Fabric Baffles Occupancy Sensor + Photosensor SLOPED CEILING Music & Gymnasium Chorus Andrew H. Wilson Elementary School
  63. 63. Green Design Strategies How to meet 2030 Challenge Daylighting – South, Large Spaces, High Ceiling Translucent baffles to block direct beam radiation and diffuse sunlight Andrew H. Wilson Elementary School
  64. 64. Green Design Strategies How to meet 2030 Challenge Daylighting – South, Large Spaces, High Ceiling Andrew H. Wilson Elementary School
  65. 65. Green Design Strategies How to meet 2030 Challenge Daylighting – South, Large Spaces, High Ceiling High SRI roof enhances daylighting 20-30% Modified bituminous roof – “white” doesn’t always provide high SRI value. Specify “highly reflective” coating. Andrew H. Wilson Elementary School
  66. 66. Project Details Choir Room Project Challenges & Collaboration Successes Andrew H. Wilson Elementary School
  67. 67. Project Details Gymnasium Project Challenges & Collaboration Successes Andrew H. Wilson Elementary School
  68. 68. Project Details South Exterior Project Challenges & Collaboration Successes Andrew H. Wilson Elementary School
  69. 69. Green Design Strategies How to meet 2030 Challenge Daylighting – East & West, Classrooms Vertical Fabric Baffles + Interior Lightshelf Occupancy Sensor + Photosensor Limited w/ existing fenestration size and profile Classrooms Andrew H. Wilson Elementary School
  70. 70. Green Design Strategies How to meet 2030 Challenge Daylighting – East & West, Classrooms West East Andrew H. Wilson Elementary School
  71. 71. Green Design Strategies How to meet 2030 Challenge Daylighting – East & West, Classrooms Utilize directional (angled) translucent baffles to stop direct beam and bounce light deeper into space Andrew H. Wilson Elementary School
  72. 72. Green Design Strategies How to meet 2030 Challenge Daylighting – East & West, Classrooms Andrew H. Wilson Elementary School
  73. 73. West Classroom Project Challenges & Collaboration Successes Andrew H. Wilson Elementary School
  74. 74. Green Design Strategies How to meet 2030 Challenge Daylighting – North, Classrooms Occupancy Sensor + Photosensor Limited w/ existing fenestration size and profile Classroom s Andrew H. Wilson Elementary School
  75. 75. Green Design Strategies How to meet 2030 Challenge Daylighting – North, Classrooms Andrew H. Wilson Elementary School
  76. 76. Green Design Strategies How to meet 2030 Challenge Daylighting 41.6 35.0 Andrew H. Wilson Elementary School
  77. 77. Green Design Strategies How to meet 2030 Challenge Efficient Lighting and Control Lighting Power Density Engineer’s SD: over 2 W/sf 3 rows w/ (3)-T8 lamp fixtures Final Design: 1.1 W/sf 2 rows w/ (2)-T5HO lamp fixtures Andrew H. Wilson Elementary School
  78. 78. Green Design Strategies How to meet 2030 Challenge Efficient Lighting and Control Indirect Lighting Classrooms Offices Andrew H. Wilson Elementary School
  79. 79. Green Design Strategies How to meet 2030 Challenge Efficient Lighting and Control Daylight & Occupancy Sensors Payback estimate • Integrated system selection • Andrew H. Wilson Elementary School
  80. 80. Green Design Strategies How to meet 2030 Challenge Efficient Lighting and Control 35.0 33.5 Andrew H. Wilson Elementary School
  81. 81. Green Design Strategies How to meet 2030 Challenge Efficient HVAC Heat Recovery Ventilation Heat Recovery Enthalpy Wheel in AHUs Dedicated Units for Office Suites for Extended Hours High Efficiency Boilers and Air-Side Chillers Andrew H. Wilson Elementary School
  82. 82. Green Design Strategies How to meet 2030 Challenge Efficient HVAC 33.5 32.5 Andrew H. Wilson Elementary School
  83. 83. Green Design Strategies How to meet 2030 Challenge Solar Domestic Hot Water Estimate Notes/Range Application type - Service hot water System configuration - With storage Building or load type - School w/ showers Number of units Student 500 Rate of occupancy % 100% 50% to 100% Estimated hot water use (at ~60 °C) L/d 3,400 Hot water use L/d 3,400 Desired water temperature °C 60 Days per week system is used d 5 1 to 7 Cold water temperature - Auto Minimum °C 16.8 1.0 to 10.0 Maximum °C 22.5 5.0 to 15.0 Months SWH system in use month 12.00 Energy demand for months analysed MWh 41.37 therm 1,411.60 Return to Energy Model sheet © Minister of Natural Resources Version 3.1 Canada 1997-2005. NRCan/CETC - Varennes Andrew H. Wilson Elementary School
  84. 84. Green Design Strategies How to meet 2030 Challenge Photovoltaics Andrew H. Wilson Elementary School
  85. 85. Green Design Strategies How to meet 2030 Challenge SDHW & PV 32.5 31.2 Andrew H. Wilson Elementary School
  86. 86. Green Design Strategies How to meet 2030 Challenge Steps To Reduce Further Plug-in load reduction • EnergyStar appliances • Vending Machines Operational Consciousness • Behavioral Shift • Conscious Scheduling • Conscious Purchase • Automatic Turn-Off More Renewable Energy Andrew H. Wilson Elementary School
  87. 87. Project Background Key Green Strategies Stormwater control • Rainwater collection from the roof • Permeable paving in courtyard • Bioswales and rain gardens • Constructed wetland Andrew H. Wilson Elementary School
  88. 88. Project Background Key Green Strategies Rainwater Reuse Studies • Various scenarios – Toilets vs Irrigation • Goal was to collect 95% of rainwater off new addition and reuse for toilet flushing and irrigation • Jurisdiction didn’t allow for building use • Irrigation only Underground, 20000 gal vs. Above ground, 12000 gal Andrew H. Wilson Elementary School
  89. 89. Project Background Key Green Strategies Permeable Paving in Courtyard • The amount of liquid asphalt is critical to obtain permeability AND strength. • Flow Rate = 140 gal/min/sf Andrew H. Wilson Elementary School
  90. 90. Project Background Key Green Strategies Bioswales and Constructed Wetland • Goal was to treat 100% stormwater • Broadmoor loves it. Potential community project. Andrew H. Wilson Elementary School
  91. 91. Green Design Strategies Key Green Strategies Energy Efficient Building Shell R-30 Roof R-30 Wall Lightshelf Insulation & SRI- Insulation 110 Roof Membrane Clear Daylight Low-e Argon Windows Photovoltaics View Windows Andrew H. Wilson Elementary School
  92. 92. Project Background Key Green Strategies Water Efficiency • Rainwater reuse for irrigation • High efficiency flush valves • Process water use reduction in kitchen Baseline – Annual Water 948,953 gallons Consumption Design-Annual Water 559,090 gallons Consumption Total Water Saving 41.1% (3 Points of WE3) Andrew H. Wilson Elementary School
  93. 93. Project Background Key Green Strategies Renewable Energy • 2.4kW Photovoltaics • Solar domestic hot water Andrew H. Wilson Elementary School
  94. 94. Project Background Key Green Strategies Material Selections & Reuse • Existing building reuse • Recycled contents • Local materials • Low/no-VOC materials Construction Practices • Construction Waste Management Plan required • IAQ Management Plan required Indoor Environments • Acoustics • Thermal comfort Andrew H. Wilson Elementary School
  95. 95. Project Background Key Green Strategies Building as a Teaching Tool • Web-based monitoring system • Interpretive signs • Sundial • Education sessions for students and staff 80% 70% 70% 60% 50% 50% 40% 30% 30% 20% 20% 10% 10% 0% Reading Hearing Seeing Seeing Seeing Hearing Hearing Experiencing Andrew H. Wilson Elementary School
  96. 96. Project Background Key Green Strategies Web-based monitoring system • Total Electricity, Gas & Water Usage • Weather Station, PV, Solar Hot Water, Rainwater, Daylighting Internet Users Data logger Kiosk w/ Server Andrew H. Wilson Elementary School
  97. 97. Project Background Key Green Strategies Interpretive Signs Throughout Site • Overall Green Design • Rainwater Reuse • Stormwater Treatment • Photovoltaics • Materials & Resources Reuse • Daylighting • Solar Hot Water • Energy Efficiency Andrew H. Wilson Elementary School
  98. 98. Project Background Key Green Strategies Sundial Andrew H. Wilson Elementary School
  99. 99. Project Background Key Green Strategies Education Sessions for Students and Staff • Tour for entire students • Brochure • Easy-to-read Operation Manual for Users Andrew H. Wilson Elementary School
  100. 100. Project Background LEED Gold Targeted Yes Maybe SS 8 6 WE 3 3 EA 10 1 MR 5 6 EQ 8 8 Certified 29~36 ID 4 2 Silver 37~43 Gold 44~57 TOTAL 38 26 Platinum 58~79 Andrew H. Wilson Elementary School
  101. 101. Contact Information Bae-Won Koh, AIA, LEED AP Vice President, Director of Design Innovative Design, Inc. (Tel) 919-832-6303 e-mail: koh@innovativedesign.net www.innovativedesign.net Andrew H. Wilson Elementary School

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