The Salt Lake City Public Library€¦ · COURTNEY YIP | LIGHTING • ELECTRICAL | THESIS FINAL...

COURTNEY YIP | LIGHTING • ELECTRICAL | THESIS FINAL PRESENTATION | 04.15.09 | Dr. Houser and Prof. Dannerth

The Salt Lake City Public LibrarySalt Lake City, UT

Outdoor Plaza [exterior space]LIGHTING DEPTH 1

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Urban Room [circulation space]

Auditorium [special purpose space]

Open Office [work space] *

Copper vs. Aluminum wiring*Energy Efficient vs. Standard Transformers

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INTRODUCTION, BUILDING STATS, + OVERALL CONCEPT

CONCLUSIONS, ACKNOWLEDGEMENTS, + QUESTIONS

MECHANICAL BREADTH*

ARCHITECTURE BREADTH

DAYLIGHTING SPECIAL STUDY

ELECTRICAL DEPTH

PRESENTATION OUTLINE

* not included in presentation

225,000 sq. ft.Size

8 totalStories

$78 millionCost

October 2000 – February 2003Construction

library, offices, retail, 300+ seat auditorium, public space

Functions


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Open Office [work space]

Copper vs. Aluminum wiringEnergy Efficient vs. Standard Transformers

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MECHANICAL BREADTH



ELECTRICAL DEPTH

PRESENTATION OUTLINE BUILDING STATISTICS

“Libraries are cultural store‐houses anda community of readers where peopleinteract with the material and with eachother. The architecture must celebratethat and in so doing, not only make awonderful library, but go beyond that tocreate a placemaker.”

– Moshe Safdie

ARCHITECTURAL CONCEPT


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“Libraries are cultural store‐houses anda community of readers where peopleinteract with the material and with eachother. The architecture must celebratethat and in so doing, not only make awonderful library, but go beyond that tocreate a placemaker.”

– Moshe Safdie


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open office | work space4

auditorium |multi‐purpose space 3

Urban Room | circulation space2outdoor plaza | outdoor space 1

REDESIGNED SPACES


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outdoor plaza | outdoor space 1Outdoor Plaza [exterior space]LIGHTING DEPTH 1

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CRESCENT WALL

URBAN ROOM ENTRANCE

GARDEN

REFLECTION POND

AMPHITHEATER

KEY FEATURES


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DESIGN GOALScreate a strong nighttime presence by emphasizing the architecture

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attract and guide visitors into the building

meet IESNA recommendations and ASHRAE Std. 90.1 code

+ orientation, safety, visual interest

a sense of place.


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Ground VerticalAvg. Illuminance 1.45 fc 0.55 fcCRITERIA 1.1 fc 0.6 fc

COMPLIANCE? YES YES

DESIGN SUMMARYarchitectural features are highlighted, providing visual interest and to delineate pathways leading to the entrance

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design meets IESNA recommendations

design meets ASHRAE Std. 90.1 Lighting Power Density code

LPDDESIGNED 0.07 W/SFCRITERIA 0.2 W/SF

COMPLIANCE? YES


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Urban Room |circulation space2


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CRESCENT WALL

SUSPENDED ART PIECE

LIBRARY

BRIDGES

RETAIL SHOPS

SEATING AREAS

KEY FEATURES


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DESIGN GOALSreinforce architecture+

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create a strong interior/exterior connection

meet IESNA recommendations and ASHRAE Std. 90.1 code

localize areas of interest and create focal points

+Outdoor Plaza [exterior space]LIGHTING DEPTH 1

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GroundAvg. Illuminance 13.7 fcCRITERIA 10.0 fc

COMPLIANCE? YES

DESIGN SUMMARYrhythmic structure of crescent wall and columns are emphasized

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design meets ASHRAE Std. 90.1 Lighting Power Density code

LPDDESIGNED 0.56 W/SFCRITERIA 1.00 W/SF

COMPLIANCE? YES

localized dapple effect in seating areas, highlighted art piece, sconces line retail shops (same fixture as exterior)

+Outdoor Plaza [exterior space]LIGHTING DEPTH 1

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auditorium |multi‐purpose space 3


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FRONT STAGE

BALCONY SEATING

STEPPED AISLES

KEY FEATURES

CURVED CEILING

WALL COVE

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ARCHITECTURAL DESIGN GOALS

eliminate conflicting architectural elements and create a visuallycleaner, aesthetically pleasing environment

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+ maintain unique shapes and character of space

+ strong integrating with thelighting systems


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PRESENTATION OUTLINE EXISTING


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PRESENTATION OUTLINE REDESIGNED

LIGHTING DESIGN GOALS

create layers of light for flexibility of space

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integrate of lighting design and architecture

+ create impression of pleasantness

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+ meet IESNA recommendations and ASHRAE Std. 90.1 code


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ARCHITECTURAL DESIGN SUMMARYsuccessful integration of lighting system with architecture

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visual clutter is avoided: concealed or recessed lighting hardware

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+ unique architecture is preserved

overall: integrated, clean, aesthetically pleasing space


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Seating (auditorium) Seating (movie) StageAvg. Illuminance 17.4 fc 0.56 fc 56.8 fcCRITERIA 10 fc 0.1‐0.2 fc 50‐100 fc

COMPLIANCE? YES OK YES

LIGHTING DESIGN SUMMARYhighly flexible space: layers of light are controlled by an architectural preset system to create various scenes

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design meets ASHRAE Std. 90.1 Lighting Power Density codeLPD

DESIGNED 1.98 W/SFCRITERIA 2.6 W/SF

COMPLIANCE? YES

the direction of the cove luminaires focus attention toward the stage without glare

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Preset Scenes1 Full on ‐ stage medium 90% 90% 100% 100% 0% 0% 60%2 Clean‐up 0% 20% 100% 100% 0% 0% 80%3 Presentation with projection 0% 0% 0% 0% 100% 0% 0%4 Movie ‐ dark 0% 15% 0% 0% 0% 0% 0%5 Stage bright/House bright 0% 30% 40% 40% 0% 90% 90%6 Stage bright/House medium 0% 15% 20% 20% 0% 90% 90%7 Stage medium/House dark 0% 0% 0% 0% 100% 80% 0%8 OFF 0% 0% 0% 0% 0% 0% 0%

Zones1. Front row downlights

2. General downlights

3. Coves ‐ walls 4. Coves ‐ ceiling 5. Steplights6. Stage spotlights

7. Stage downlights

visual interest: architectural features emphasized, various light intensities

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open office |work space4


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DAYLIGHTING STUDY – CLEAR SKYDECEMBER 21

MARCH 21

JUNE 21

9 am 12 pm 3 pm

9 am 12 pm 3 pm

9 am 12 pm 3 pm


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PRESENTATION OUTLINE DECEMBER 21

MARCH 21

JUNE 21

9 am 12 pm 3 pm

9 am 12 pm 3 pm

9 am 12 pm 3 pm

DAYLIGHTING STUDY – OVERCAST SKY

DAYLIGHTING STUDY – CLEAR SKYDECEMBER 21

MARCH 21

JUNE 21

3 pm

3 pm

3 pm

DIRECT GLARE

DIRECT GLARE

DIRECT GLARE


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DAYLIGHTING STUDY – CLEAR SKY3 pm

3 pm

3 pm

DIRECT GLARE

DIRECT GLARE

DIRECT GLARE

SHEERSHADES

maximize view

control glare

U/V protection

reduce solar heat gain

recommended for west‐facing windows

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DAYLIGHTING STUDY – ENERGY ANALYSIS

total energy savings = 2952.8 kWh per year

utility cost 2.93¢ per kWh (May‐Sept.)2.73¢ per kWh (Oct.‐April)

cost savings = $83 per year

Daysim simulation [photosensor controlled dimming system]

Reasons for low energy and cost savings

eastern windows face atrium, western wall receives most daylight only during the few afternoon hours of the work day

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+ private office partitions block light that would otherwise reach open office workplane

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Given low savings and additional equipment costs, daylighting system is not recommended


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cost savings are embedded in electrical lighting design

increased equipment reliability +

lower operating costs +

low environmental impact+

harmonic cancellation+

ADVANTAGES Powersmiths T1000‐C3 transformer

low lifecycle costs+


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GOALeconomically justify the system change from standard to energy efficient transformers

ECONOMIC ANALYSISPowersmiths Energy Savings Payback (ESP) Calculator+

RS Means and Powersmiths cost data+

existing transformer loads and efficiency +

Powersmiths T1000‐C3 transformer

equipment loads and utility costs+

RESULTS$9,719 annual savings+

3.41 year payback+annual reduction in greenhouse gases (per EPA)+

164 tons of CO2532 tons of Coal1,288 kqs of SO2555 kqs of NOx

change to energy efficient transformers is recommended


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CONCLUSIONS


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PRESENTATION OUTLINELIGHTING DEPTH

ELECTRICAL DEPTH


DAYLIGHTING STUDY

enhanced the architecture and reinforced the overall architectural concept of creating an interesting, experiential placemaker

met light level recommendations and power density requirements

created a more aesthetically pleasing, architecturally unique space while better integrating the lighting design

demonstrated the need for shading on west‐facing windows

photosensor controlled dimming system not recommended due to low cost savings

energy efficient transformers provided electrical system advantages and cost savings

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Salt Lake City Public Library SystemOwner

Moshe Safdie and Associates Valentiner Crane Brunjes Onyon Architects

Architects

Ove Arup & PartnersReaveley Engineers & Associates

Structural

MEP Ove Arup & PartnersColvin Engineering AssociatesBNA Consulting Engineers

Contractor/CM Big‐D Construction Corporation

Lighting Lam Partners Inc.

PROJECT TEAM


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ACKNOWLEDGEMENTSDr. Kevin Houser

Dr. Richard MistrickProfessor Ted DannerthProfessor Robert HollandProfessor Kevin Parfitt

Matt Latchford, Lam PartnersGlenn Heinmiller, Lam Partners

Nathan Leavitt, VCBO Architecture

AE colleagues


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questions ?Outdoor Plaza [exterior space]LIGHTING DEPTH 1

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The Salt Lake City Public Library€¦ · COURTNEY YIP | LIGHTING • ELECTRICAL | THESIS FINAL...

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