The Bahen Centre for Information Technology
55
Background Design Concept Gallery Lecture Hall (acoustics) Meeting Room Conclusions The Bahen Centre for Information Technology Spring 2003 Senior Thesis Lighting Design Rebecca Ho
-
Upload
cassidy-albert -
Category
Documents
-
view
36 -
download
3
description
The Bahen Centre for Information Technology. Spring 2003 Senior Thesis. Lighting Design Rebecca Ho. Presentation Outline. Background Lighting Design Design Concept Gallery Lecture Hall (with acoustics) Meeting Room Conclusions. N. Presentation Outline. Topics not presented: - PowerPoint PPT Presentation
Transcript of The Bahen Centre for Information Technology
Background
Design Concept
Gallery
Lecture Hall
(acoustics)
Meeting Room
Conclusions
The Bahen Centre for Information Technology
Spring 2003 Senior Thesis Lighting Design
Rebecca Ho
Background
Design Concept
Gallery
Lecture Hall
(acoustics)
Meeting Room
Conclusions
Background
Lighting Design
Design Concept
Gallery
Lecture Hall
(with acoustics)
Meeting Room
Conclusions
Presentation Outline
N
Background
Design Concept
Gallery
Lecture Hall
(acoustics)
Meeting Room
Conclusions
Topics not presented:
Outdoor Courtyard Lighting Design
Electrical
Glazing Analysis
Presentation Outline
N
Background
Design Concept
Gallery
Lecture Hall
(acoustics)
Meeting Room
Conclusions
Project Background
Background
Design Concept
Gallery
Lecture Hall
(acoustics)
Meeting Room
ConclusionsThe Bahen Centre for Information Technology is a
facility for information technology, electrical engineering, computer engineering, and industrial engineering education at the University of Toronto
Background
Design Concept
Gallery
Lecture Hall
(acoustics)
Meeting Room
Conclusions
Background
Design Concept
Gallery
Lecture Hall
(acoustics)
Meeting Room
Conclusions
The University of Toronto is located in the heart of downtown Toronto in Ontario, Canada
Background
Design Concept
Gallery
Lecture Hall
(acoustics)
Meeting Room
Conclusions
Background
Design Concept
Gallery
Lecture Hall
(acoustics)
Meeting Room
ConclusionsThe Bahen Centre is located in the St. George
campus of the University of Toronto at the intersection of St. George Street and College
Street.
Background
Design Concept
Gallery
Lecture Hall
(acoustics)
Meeting Room
Conclusions
Background
Design Concept
Gallery
Lecture Hall
(acoustics)
Meeting Room
Conclusions
•General Contractor and Construction Management: PCL Constructions Canada Inc.
•Architects and Planning: Diamond and Schmitt Architects Inc.
•Structural Engineers:
Reed Jones Christoffersen Ltd.
•Mechanical Engineers: Keen Engineering
•Electrical Engineers and Lighting Design: Crossey Engineering Ltd.
•Owner: University of Toronto
Primary Project Team
Background
Design Concept
Gallery
Lecture Hall
(acoustics)
Meeting Room
Conclusions
Background
Design Concept
Gallery
Lecture Hall
(acoustics)
Meeting Room
Conclusions
•Completed in April 2002
•Total building area 377,000 ft2 (8 stories)
•Project cost $100 Million US Dollar
•Building features
•11 lecture halls
•14 tutorial/seminar rooms
•Over 50 laboratories and offices
•It is the largest of its kind amongst Canadian Universities
Background
Design Concept
Gallery
Lecture Hall
(acoustics)
Meeting Room
Conclusions
Design Concept
Background
Design Concept
Gallery
Lecture Hall
(acoustics)
Meeting Room
Conclusions
Background
Design Concept
Gallery
Lecture Hall
(acoustics)
Meeting Room
Conclusions
Design Metaphor
“Computer Chip and
Motherboard” metaphor
Background
Design Concept
Gallery
Lecture Hall
(acoustics)
Meeting Room
Conclusions
•Symbolizes knowledge and information
•Represented by glowing objects and strategically placed luminaires
•The idea of organization and structure represents the coming together of knowledge
Background
Design Concept
Gallery
Lecture Hall
(acoustics)
Meeting Room
Conclusions
Project Design Goals
• To provide a non-cluttered and clean look
• To highlight and attract attention to architectural elements
• To provide an energy efficient design
• To maintain design metaphor throughout all the spaces
Background
Design Concept
Gallery
Lecture Hall
(acoustics)
Meeting Room
Conclusions
Background
Design Concept
Gallery
Lecture Hall
(acoustics)
Meeting Room
Conclusions
Project Design Criteria
• To satisfy minimum illuminance levels recommended by the IESNA
• Lighting power density must be at or lower than the ASHRAE/IESNA Standard 90.1 ~ 1999
• Other design issues to consider– Glare– Illuminance distribution– Color appearance
Background
Design Concept
Gallery
Lecture Hall
(acoustics)
Meeting Room
Conclusions
Background
Design Concept
Gallery
Lecture Hall
(acoustics)
Meeting Room
Conclusions
Gallery
Background
Design Concept
Gallery
Lecture Hall
(acoustics)
Meeting Room
Conclusions
Background
Design Concept
Gallery
Lecture Hall
(acoustics)
Meeting Room
Conclusions
Background
Design Concept
Gallery
Lecture Hall
(acoustics)
Meeting Room
Conclusions
Background
Design Concept
Gallery
Lecture Hall
(acoustics)
Meeting Room
Conclusions
Design Goals:
• To eliminate clutter in the space
• To direct movement through corridor
• Create a visual interest in the space by enhancing architectural elements
Background
Design Concept
Gallery
Lecture Hall
(acoustics)
Meeting Room
Conclusions
Background
Design Concept
Gallery
Lecture Hall
(acoustics)
Meeting Room
Conclusions
Design Criteria:
• To have an adequately lit corridor for walking
• Target illuminance – Horizontal 5 fc– Vertical: N/A
• Power allowance: 0.7 W/ft2
Background
Design Concept
Gallery
Lecture Hall
(acoustics)
Meeting Room
Conclusions
Background
Design Concept
Gallery
Lecture Hall
(acoustics)
Meeting Room
Conclusions
Design Concept:
• Fiber optics lining the opt of the red curved wall
• Drop ceiling
• Cove lighting
Background
Design Concept
Gallery
Lecture Hall
(acoustics)
Meeting Room
Conclusions
Background
Design Concept
Gallery
Lecture Hall
(acoustics)
Meeting Room
Conclusions
Luminaire and lighting layout:
Background
Design Concept
Gallery
Lecture Hall
(acoustics)
Meeting Room
Conclusions
Background
Design Concept
Gallery
Lecture Hall
(acoustics)
Meeting Room
Conclusions
Design Renderings
Background
Design Concept
Gallery
Lecture Hall
(acoustics)
Meeting Room
Conclusions
Background
Design Concept
Gallery
Lecture Hall
(acoustics)
Meeting Room
Conclusions
Background
Design Concept
Gallery
Lecture Hall
(acoustics)
Meeting Room
Conclusions
Background
Design Concept
Gallery
Lecture Hall
(acoustics)
Meeting Room
Conclusions
Background
Design Concept
Gallery
Lecture Hall
(acoustics)
Meeting Room
Conclusions
•Illuminance on floor surface is adequate and evenly distributed
Background
Design Concept
Gallery
Lecture Hall
(acoustics)
Meeting Room
Conclusions
Analysis of gallery lighting design
Background
Design Concept
Gallery
Lecture Hall
(acoustics)
Meeting Room
Conclusions
Power allowance = 0.7W/ft2, with an additional 1.0 W/ft2 for decorative and accent lighting, which = 1.7W/ft2
Gallery Lighting SystemFixture Lamp Watt # Lamps Input Watt # used Total Wattage
CB1 32 2 70 10 700FH1 32 1 35 27 945LF1 100 1 100 1 100
174517670.99
Total Wattage (W)Total Area (sf)
Power Density (W/sf)
Power density OK
Background
Design Concept
Gallery
Lecture Hall
(acoustics)
Meeting Room
Conclusions
Background
Design Concept
Gallery
Lecture Hall
(acoustics)
Meeting Room
Conclusions
(movie not available in electronic format of presentation. To view movie, go to the individual movie links in the Presentation section of the thesis website)
Background
Design Concept
Gallery
Lecture Hall
(acoustics)
Meeting Room
Conclusions
Lecture Hall
Background
Design Concept
Gallery
Lecture Hall
(acoustics)
Meeting Room
Conclusions
Background
Design Concept
Gallery
Lecture Hall
(acoustics)
Meeting Room
Conclusions
Background
Design Concept
Gallery
Lecture Hall
(acoustics)
Meeting Room
Conclusions
Comparison study of two different lighting systems
Background
Design Concept
Gallery
Lecture Hall
(acoustics)
Meeting Room
Conclusions
Background
Design Concept
Gallery
Lecture Hall
(acoustics)
Meeting Room
Conclusions
Design Goals
• To provide an even ambient lighting scheme
• To highlight architectural detail
• To provide adequate illumination on surfaces
Background
Design Concept
Gallery
Lecture Hall
(acoustics)
Meeting Room
Conclusions
Background
Design Concept
Gallery
Lecture Hall
(acoustics)
Meeting Room
Conclusions
Design Criteria
• Consider veiling reflections on surfaces
• Vertical illuminance• Flexibility of control• Target Illuminance
– Horizontal: 30 fc– Vertical
(blackboard): 30 fc
• Power Allowance: 1.6 W/ft2
Background
Design Concept
Gallery
Lecture Hall
(acoustics)
Meeting Room
Conclusions
Background
Design Concept
Gallery
Lecture Hall
(acoustics)
Meeting Room
Conclusions
Design Concept for System #1
Direct system
• Compact fluorescent downlight
• Concealed linear fluorescent cove fixtures
• Recessed wall washer to light front of room
Background
Design Concept
Gallery
Lecture Hall
(acoustics)
Meeting Room
Conclusions
Luminaire and lighting layout:
Background
Design Concept
Gallery
Lecture Hall
(acoustics)
Meeting Room
Conclusions
Background
Design Concept
Gallery
Lecture Hall
(acoustics)
Meeting Room
Conclusions
Background
Design Concept
Gallery
Lecture Hall
(acoustics)
Meeting Room
Conclusions
Design Concept for System #2
Indirect System
• Suspended indirect fixtures
• Orthogonal alignment of indirect fixtures
• Concealed fluorescent cove fixtures
• Recessed wall washer for front of the room
Background
Design Concept
Gallery
Lecture Hall
(acoustics)
Meeting Room
Conclusions
Luminaire and lighting layout:
Background
Design Concept
Gallery
Lecture Hall
(acoustics)
Meeting Room
Conclusions
Background
Design Concept
Gallery
Lecture Hall
(acoustics)
Meeting Room
Conclusions
System Controls
Background
Design Concept
Gallery
Lecture Hall
(acoustics)
Meeting Room
Conclusions
Three scenes are needed:
•Lecture/General note-taking
•Audio/Visual Presentations
•Unoccupied/Nightlight
Control with user preset lighting scenes
Background
Design Concept
Gallery
Lecture Hall
(acoustics)
Meeting Room
Conclusions
Background
Design Concept
Gallery
Lecture Hall
(acoustics)
Meeting Room
Conclusions
Direct Syste
m
Indirect System
Background
Design Concept
Gallery
Lecture Hall
(acoustics)
Meeting Room
Conclusions
Result of design
Background
Design Concept
Gallery
Lecture Hall
(acoustics)
Meeting Room
Conclusions
Direct Syste
m
Indirect System
Background
Design Concept
Gallery
Lecture Hall
(acoustics)
Meeting Room
Conclusions
Background
Design Concept
Gallery
Lecture Hall
(acoustics)
Meeting Room
Conclusions
Direct Syste
m
Indirect System
Background
Design Concept
Gallery
Lecture Hall
(acoustics)
Meeting Room
Conclusions
Design comparison
Background
Design Concept
Gallery
Lecture Hall
(acoustics)
Meeting Room
Conclusions
Sytem #1: Direct Lighting SystemFixture Lamp Watt # Lamps Input Watt # used Total Wattage
CA1 32 1 35 41 1435FB1 54 1 60.8 18 1094.4FM1 34 1 42 3 126
2655.41442.51.84Power Density (W/sf)
Total Wattage (W)Total Area (sf)
Sytem #2: Indirect Lighting SystemFixture Lamp Watt # Lamps Input Watt # used Total Wattage
CA1 32 1 35 4 140FB1 54 1 60.8 18 1094.4FJ1 32 2 70 12 840FJ2 32 4 123 6 738FM1 34 1 42 3 126
2938.41442.52.04
Total Wattage (W)Total Area (sf)
Power Density (W/sf)
Power density of both system exceeds the allowable amount (1.6W/ft2), however this can be corrected with the correct lighting control system
Direct Syste
m
Indirect System
Background
Design Concept
Gallery
Lecture Hall
(acoustics)
Meeting Room
Conclusions
Background
Design Concept
Gallery
Lecture Hall
(acoustics)
Meeting Room
Conclusions
Power density of the lecture/note-taking lighting scene
Sytem #1: Direct Lighting System (with modification)Fixture Lamp Watt # Lamps Input Watt # used Total Wattage
CA1 32 1 35 41 1435FB1 54 1 60.8 0 0FM1 34 1 42 3 126
15611442.51.08
Total Wattage (W)Total Area (sf)
Power Density (W/sf)
Sytem #2: Indirect Lighting System (with modification)Fixture Lamp Watt # Lamps Input Watt # used Total Wattage
CA1 32 1 35 4 140FB1 54 1 60.8 0 0FJ1 32 2 70 12 840FJ2 32 4 123 6 738FM1 34 1 42 3 126
18441442.51.28
Total Wattage (W)Total Area (sf)
Power Density (W/sf)
Power density
OK
Direct Syste
m
Indirect System
Power density of System #1 (Direct) is lower than that of System #2 (Indirect)
Background
Design Concept
Gallery
Lecture Hall
(acoustics)
Meeting Room
Conclusions
Background
Design Concept
Gallery
Lecture Hall
(acoustics)
Meeting Room
Conclusions
Result of comparison analysis
Therefore, Pick System #1 (Direct System)
(movie not available in electronic format of presentation. To view movie, go to the individual movie links in the Presentation section of the thesis website)
Background
Design Concept
Gallery
Lecture Hall
(acoustics)
Meeting Room
Conclusions
Acoustics Analysis of Lecture Hall
Background
Design Concept
Gallery
Lecture Hall
(acoustics)
Meeting Room
Conclusions
Background
Design Concept
Gallery
Lecture Hall
(acoustics)
Meeting Room
Conclusions
Reverberation Time Analysis
Background
Design Concept
Gallery
Lecture Hall
(acoustics)
Meeting Room
Conclusions
•The range of reverberation time for a lecture room at 500 Hz is from 0.7 to 1.1
•If the reverberation time is longer than the optimum value ~ room will sound too lively and boomy
•If the reverberation time is shorter than the optimum value ~ room will sound dead and flat
Background
Design Concept
Gallery
Lecture Hall
(acoustics)
Meeting Room
Conclusions
New and old reverberation time comparison
Background
Design Concept
Gallery
Lecture Hall
(acoustics)
Meeting Room
Conclusions
Material Area (m̂2) 125 250 500 1000 2000 4000 NRC 125 250 500 1000 2000 4000Walls 142.55 0.10 0.08 0.05 0.03 0.03 0.03 0.05 14.3 11.4 7.13 4.277 4.277 4.277
Carpet, on concrete 131.6 0.02 0.06 0.14 0.37 0.60 0.65 0.29 2.63 7.9 18.4 48.69 78.96 85.54Door 5.9456 0.15 0.11 0.1 0.07 0.06 0.07 0.10 0.89 0.65 0.59 0.416 0.357 0.416
students sitting in chairs 80.12 0.3 0.42 0.5 0.85 0.85 0.84 0.55 24 33.7 40.1 68.1 68.1 67.3Ceiling 85.846 0.10 0.08 0.05 0.03 0.03 0.03 0.05 8.58 6.87 4.29 2.575 2.575 2.575
Desks (wood) 52.212 0.15 0.11 0.1 0.07 0.06 0.07 0.10 7.83 5.74 5.22 3.655 3.133 3.655Openings (ceiling cove) 26.961 1.00 1.00 1.00 1.00 1.00 1.00 1.00 27 27 27 26.96 26.96 26.96
Glass 1.562 0.35 0.25 0.18 0.12 0.07 0.04 0.15 0.55 0.39 0.28 0.187 0.109 0.06285.7 93.6 103 154.9 184.5 190.80.73 0.67 0.61 0.403 0.338 0.327
Absorption Coefficients (alpha) Sabins (Area*alpha)
Total SabinsReverb Time
Material Area (m̂2) 125 250 500 1000 2000 4000 NRC 125 250 500 1000 2000 4000Walls 142.55 0.10 0.08 0.05 0.03 0.03 0.03 0.05 14.3 11.4 7.13 4.277 4.277 4.277
Hardwood Floor 131.6 0.15 0.11 0.1 0.07 0.06 0.07 0.10 19.7 14.5 13.2 9.212 7.896 9.212Door 5.9456 0.15 0.11 0.1 0.07 0.06 0.07 0.10 0.89 0.65 0.59 0.416 0.357 0.416
students sitting in chairs 80.12 0.3 0.42 0.5 0.85 0.85 0.84 - 24 33.7 40.1 68.1 68.1 67.3Ceiling 85.846 0.10 0.08 0.05 0.03 0.03 0.03 0.05 8.58 6.87 4.29 2.575 2.575 2.575
Desks (wood) 52.212 0.15 0.11 0.1 0.07 0.06 0.07 0.10 7.83 5.74 5.22 3.655 3.133 3.655Cove (closed) 26.961 0.10 0.08 0.05 0.03 0.03 0.03 0.05 2.7 2.16 1.35 0.809 0.809 0.809
Glass 1.562 0.35 0.25 0.18 0.12 0.07 0.04 0.15 0.55 0.39 0.28 0.187 0.109 0.06278.6 75.3 72.1 89.23 87.26 88.310.79 0.83 0.87 0.699 0.715 0.707
Total SabinsReverb Time
Absorption Coefficients (alpha) Sabins (Area*alpha)
Therefore, reverberation time OK
Background
Design Concept
Gallery
Lecture Hall
(acoustics)
Meeting Room
Conclusions
Meeting Room
Background
Design Concept
Gallery
Lecture Hall
(acoustics)
Meeting Room
Conclusions
Background
Design Concept
Gallery
Lecture Hall
(acoustics)
Meeting Room
Conclusions
Background
Design Concept
Gallery
Lecture Hall
(acoustics)
Meeting Room
Conclusions
Background
Design Concept
Gallery
Lecture Hall
(acoustics)
Meeting Room
Conclusions
Design Goals:
• To highlight architectural details in the room
• Provide even ambient lighting
Background
Design Concept
Gallery
Lecture Hall
(acoustics)
Meeting Room
Conclusions
Background
Design Concept
Gallery
Lecture Hall
(acoustics)
Meeting Room
Conclusions
Design Criteria:
• Vertical surface illuminance
• Flexibility of lighting control system
• High color rendering properties
• Target Illuminance– Horizontal: 30 fc– Vertical: 5 fc
• Power allowance: 1.5 W/ft2
Background
Design Concept
Gallery
Lecture Hall
(acoustics)
Meeting Room
Conclusions
Background
Design Concept
Gallery
Lecture Hall
(acoustics)
Meeting Room
Conclusions
Design Concept
• Use elliptical ceiling in the middle of the room to emphasize shape of room
• Concealed fluorescent cove fixtures
• Single pendent in middle of room
Background
Design Concept
Gallery
Lecture Hall
(acoustics)
Meeting Room
Conclusions
Background
Design Concept
Gallery
Lecture Hall
(acoustics)
Meeting Room
Conclusions
Luminaire and lighting layout:
Background
Design Concept
Gallery
Lecture Hall
(acoustics)
Meeting Room
Conclusions
Background
Design Concept
Gallery
Lecture Hall
(acoustics)
Meeting Room
Conclusions
Background
Design Concept
Gallery
Lecture Hall
(acoustics)
Meeting Room
Conclusions
Background
Design Concept
Gallery
Lecture Hall
(acoustics)
Meeting Room
Conclusions
Background
Design Concept
Gallery
Lecture Hall
(acoustics)
Meeting Room
Conclusions
Horizontal illuminance on the task surface (conference table) is 50 fc, which meets the value recommended by the IESNA Handbook
Background
Design Concept
Gallery
Lecture Hall
(acoustics)
Meeting Room
Conclusions
Analysis of lighting design
Background
Design Concept
Gallery
Lecture Hall
(acoustics)
Meeting Room
Conclusions
Meeting Room Lighting SystemFixture Lamp Watt # Lamps Input Watt # used Total Wattage
CJ1 40 3 124 1 124CM1 13 1 16 18 288FB1 54 1 60.8 24 1459.2
1871.28002.34
Total Wattage (W)Total Area (sf)
Power Density (W/sf)
Power density
OK
Power allowance = 1.5 W/ft2, with an additional 1.0 W/ft2 for decorative and accent lighting, which = 2.5 W/ft2
Background
Design Concept
Gallery
Lecture Hall
(acoustics)
Meeting Room
Conclusions
Background
Design Concept
Gallery
Lecture Hall
(acoustics)
Meeting Room
Conclusions
(movie not available in electronic format of presentation. To view movie, go to the individual movie links in the Presentation section of the thesis website)
Background
Design Concept
Gallery
Lecture Hall
(acoustics)
Meeting Room
Conclusions
Conclusions
Background
Design Concept
Gallery
Lecture Hall
(acoustics)
Meeting Room
Conclusions
Background
Design Concept
Gallery
Lecture Hall
(acoustics)
Meeting Room
Conclusions
Conclusions• Lighting
– All lighting design goals were met
• Aesthetically pleasing lighting design that highlighted architectural features
• Used mostly recessed or concealed luminaires to eliminate clutter in the spaces
• Energy efficient design by the use of only fluorescent luminaires
• Illuminance levels on surfaces were sufficient in all spaces
• Acoustical
– Acoustics in Lecture Hall can be improved to the optimal reverberation time level by changing the floor material, and covering the cove openings.
Background
Design Concept
Gallery
Lecture Hall
(acoustics)
Meeting Room
Conclusions
Background
Design Concept
Gallery
Lecture Hall
(acoustics)
Meeting Room
Conclusions
Many thanks to…
Allyson Chrysler and Dave Sylvester ~ Crossey Engineering Ltd.
Ben Louie ~ University of Toronto
Dr. Moeck, Dr. Mistrick, Professor Ling, and Jonathan Dougherty
Electrical Consultant ~ John Reese
Fellow AE’s and especially the wonderful Lighting group…
Andrew Tech
and my family
Background
Design Concept
Gallery
Lecture Hall
(acoustics)
Meeting Room
Conclusions
Questions?
