The Salt Lake City Public Library

Transcription

1 The Salt Lake City Public Library Salt Lake City, UT COURTNEY YIP LIGHTING ELECTRICAL THESIS FINAL PRESENTATION Dr. Houser and Prof. Dannerth

2 * * * * not included in presentation

3 BUILDING STATISTICS Size Stories Cost Construction Functions 5,000 sq. ft. 8 total $78 million October 000 February 00 library, offices, retail, 00 seat auditorium, public space

4 ARCHITECTURAL CONCEPT Libraries are cultural store houses and a community of readers where people interact with the material and with each other. The architecture must celebrate thatandinsodoing,notonlymake a wonderful library, but go beyond that to create a placemaker. MosheSafdie

5 Libraries are cultural store houses and a community of readers where people interact with the material and with each other. The architecture must celebrate thatandinsodoing,notonlymakea wonderful library, but go beyond that to create a placemaker. MosheSafdie

6 auditorium multi purpose space Urban Room circulation space open office work space REDESIGNED SPACES 1 outdoor plaza outdoor space

7 1 outdoor plaza outdoor space

8 KEY FEATURES CRESCENT WALL URBAN ROOM ENTRANCE AMPHITHEATER GARDEN REFLECTION POND 1

9 DESIGN GOALS create a strong nighttime presence by emphasizing the architecture attract and guide visitors into the building meet IESNA recommendations and ASHRAE Std code orientation, safety, visual interest a sense of place.

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17 DESIGN SUMMARY architectural features are highlighted, providing visual interest and to delineate pathways leading to the entrance design meets IESNA recommendations Ground Vertical Avg. Illuminance 1.5 fc 0.55 fc CRITERIA 1.1 fc 0.6 fc COMPLIANCE? YES YES design meets ASHRAE Std Lighting Power Density code DESIGNED CRITERIA COMPLIANCE? LPD 0.07 W/SF 0. W/SF YES

18 Urban Room circulation space

19 KEY FEATURES LIBRARY CRESCENT WALL SUSPENDED ART PIECE BRIDGES RETAIL SHOPS SEATING AREAS

20 DESIGN GOALS reinforce architecture localize areas of interest and create focal points create a strong interior/exterior connection meet IESNA recommendations and ASHRAE Std code

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28 DESIGN SUMMARY rhythmic structure of crescent wall and columns are emphasized localized dapple effect in seating areas, highlighted art piece, sconces line retail shops (same fixture as exterior) design meets IESNA recommendations Avg. Illuminance CRITERIA COMPLIANCE? Ground 1.7 fc 10.0 fc YES design meets ASHRAE Std Lighting Power Density code DESIGNED CRITERIA COMPLIANCE? LPD 0.56 W/SF 1.00 W/SF YES

29 auditorium multi purpose space

30 KEY FEATURES FRONT STAGE BALCONY SEATING STEPPED AISLES WALL COVE CURVED CEILING

31 ARCHITECTURAL DESIGN GOALS eliminate conflicting architectural elements and create a visually cleaner, aesthetically pleasing environment maintain unique shapes and character of space strong integrating with the lighting systems

32 EXISTING

33 REDESIGNED

34 LIGHTING DESIGN GOALS create layers of light for flexibility of space create impression of pleasantness meet IESNA recommendations and ASHRAE Std code integrate of lighting design and architecture

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39 ARCHITECTURAL DESIGN SUMMARY successful integration of lighting system with architecture visual clutter is avoided: concealed or recessed lighting hardware unique architecture is preserved overall: integrated, clean, aesthetically pleasing space

40 LIGHTING DESIGN SUMMARY highly flexible space: layers of light are controlled by an architectural preset system to create various scenes the direction of the cove luminaires focus attention toward the stage without glare visual interest: architectural features emphasized, various light intensities design meets IESNA recommendations Seating (auditorium) Seating (movie) Stage Avg. Illuminance 17. fc 0.56 fc 56.8 fc CRITERIA 10 fc fc fc COMPLIANCE? YES OK YES design meets ASHRAE Std Lighting Power Density code LPD DESIGNED 1.98 W/SF CRITERIA.6 W/SF COMPLIANCE? YES Zones 1. Front row. General 6. Stage 7. Stage. Coves walls. Coves ceiling 5. Steplights Preset Scenes downlights downlights spotlights downlights 1 Full on stage medium 90% 90% 100% 100% 0% 0% 60% Clean up 0% 0% 100% 100% 0% 0% 80% Presentation with projection 0% 0% 0% 0% 100% 0% 0% Movie dark 0% 15% 0% 0% 0% 0% 0% 5 Stage bright/house bright 0% 0% 0% 0% 0% 90% 90% 6 Stage bright/house medium 0% 15% 0% 0% 0% 90% 90% 7 Stage medium/house dark 0% 0% 0% 0% 100% 80% 0% 8 OFF 0% 0% 0% 0% 0% 0% 0%

41 open office work space

42 DAYLIGHTING STUDY CLEAR SKY DAYLIGHTING STUDY OVERCAST SKY PRESENTATION OUTLINE DECEMBER 1 DECEMBER 1 9 am 1 pm pm 9 am 1 pm pm MARCH 1 9 am 1 pm pm MARCH 1 9 am 1 pm pm JUNE 1 9 am 1 pm pm JUNE 1 9 am 1 pm pm

43 DECEMBER 1 DAYLIGHTING STUDY CLEAR SKY pm DIRECT GLARE MARCH 1 pm DIRECT GLARE JUNE 1 pm DIRECT GLARE

44 DAYLIGHTING STUDY CLEAR SKY SHEERSHADES recommended for westfacing windows maximize view control glare U/V protection reduce solar heat gain pm pm pm DIRECT GLARE DIRECT GLARE DIRECT GLARE

45 DAYLIGHTING STUDY ENERGY ANALYSIS Daysim simulation total energy savings = 95.8 kwh per year utility cost [photosensor controlled dimming system].9 per kwh (May Sept.).7 per kwh (Oct. April) cost savings = $8 per year 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 private office partitions block light that would otherwise reach open office workplane cost savings are embedded in electrical lighting design Given low savings and additional equipment costs, daylighting system is not recommended

46 ADVANTAGES increased equipment reliability GOAL lower operating costs low environmental impact harmonic cancellation low lifecycle costs economically justify the system change from standard to energy efficient transformers Powersmiths T1000 C transformer

47 ECONOMIC ANALYSIS Powersmiths Energy Savings Payback (ESP) Calculator RS Means and Powersmiths cost data existing transformer loads and efficiency equipment loads and utility costs RESULTS $9,719 annual savings.1 year payback annual reduction in greenhouse gases (per EPA) 16 tons of CO 5 tons of Coal 1,88 kqs of SO 555 kqs of NOx Powersmiths T1000 C transformer change to energy efficient transformers is recommended

48 CONCLUSIONS LIGHTING DEPTH 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 DAYLIGHTING STUDY 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

49 PROJECT TEAM Owner Architects Structural MEP Contractor/CM Lighting Salt Lake City Public Library System Moshe Safdie and Associates Valentiner Crane Brunjes Onyon Architects Ove Arup & Partners Reaveley Engineers & Associates Ove Arup & Partners Colvin Engineering Associates BNA Consulting Engineers Big D Construction Corporation Lam Partners Inc.

50 ACKNOWLEDGEMENTS Dr. Kevin Houser Dr. Richard Mistrick Professor Ted Dannerth Professor Robert Holland Professor Kevin Parfitt Matt Latchford, Lam Partners Glenn Heinmiller, Lam Partners Nathan Leavitt, VCBO Architecture AE colleagues

51 questions?