Allison Brown - Pennsylvania State University · Web viewLighting Plan Fixture and Power Summary...
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T he National Research and Training Institute For the Blind 1800 Johnson St., Baltimore MD. Lobby Lighting Design Allison Brown Penn State University Lighting Option Spring 2003 77
Transcript of Allison Brown - Pennsylvania State University · Web viewLighting Plan Fixture and Power Summary...
T he National Research and Training Institute For the Blind 1800 Johnson St., Baltimore MD.
Lobby Lighting Design
Allison Brown Penn State University Lighting Option Spring 2003
77
T he National Research and Training Institute For the Blind 1800 Johnson St., Baltimore MD.
Lobby Lighting Design
Allison Brown Penn State University Lighting Option Spring 2003
78
Location and Dimensions 4th floor main entrance Main Gallery: = 44.5’x23’x16.5’ (beneath
bulkheads) to about 32’ beneath the skylights)
Hallways: 7’ wide and about 32’ long. Function:
Main entrance and circulation of fourth floor
Building’s “show piece”: serves as gathering space for functions in multi-purpose room
Design Intentions: Create smooth transition from exterior to
interior Utilize vertical emphasis to lead partially
sighted through space and create focal points
Emphasize the human sense of touch by highlighting differing materials
Utilize diffuse glazing change in skylight to reflect light back into and give the impression of daytime. This will also fulfill the architect’s ambition of a glowing tower
Introduction
Lobby and Founder
T he National Research and Training Institute For the Blind 1800 Johnson St., Baltimore MD.
Lobby Lighting Design
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Circulation Desk
Skylight Well
Ceiling Height = 16’-0”
Well Height = 16’-0”
Design Procedure: From my daylighting study, it was decided to use diffuse polycarbonate panels in the skylight glazing system. During the daytime hours this should on some level still bring the outdoors inside. The less transmissive glazing will produce a lower light level which will allow a smooth adaptation transition from exterior to interior which will be beneficial to the partially sighted. For the ambient lighting in the space, wallwashing will be used to create a vertical gradient of light and lead the occupants through the room. During night hours, uplights will be placed in the skylight wells using the diffuse glazing to reflect light back into the space, creating the impression
Glazed Curtain Wall
Four Story Glass Atrium
Elevator Bay
T he National Research and Training Institute For the Blind 1800 Johnson St., Baltimore MD.
Lobby Lighting Design
Lobby Materials*Note I changed the glazing in the skylight system from tinted green glazing to diffuse white polycarbonate*Note I changed the glazing in the curtain wall and window system to from green tinted glass to clear, low e
Walls Description ρ Brick Red Wire Cut 0.32
Wood paneling (1) Marlite Map System (honey cherry) 0.44Wood paneling (2) Marlite Map System (wild cherry) 0.3
Baseboard Gossen Corp "deep dimension pine" stained wild cherry 0.3Aluminum siding Marlite Map System (bright brushed aluminum) 0.4
τ Curtain Wall 1" insulated clear low e glass 0.73
Windows in Atrium 1" insulated clear low e glass 0.73Floor Description ρ
Stone Tile (1) Crossville "redrock" polished 0.18Stone Tile (2) Crossville "jadestone" polished 0.22
Ceiling Description ρ GWB GWB painted with high gloss pistachio paint 0.83Beams Decorative beams stained to match aluminum 0.4
τSkylight Glazing Insulated Dense Whie Polycarbonate Panels 0.16
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T he National Research and Training Institute For the Blind 1800 Johnson St., Baltimore MD.
Lobby Lighting Design
Design Criteria
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Space CriteriaUses and Activites Circulation and Assembly SpaceOccupancy Partially sighted and normal vision visitors and personnelVisual Tasks Simple reading and visual tasks at circulation deskControl Manuel switching (note most electric light off during day)Color Create daylight look, but complement red materials = 3500 K to 3000 KColor Rendering 80 + (for good facial modeling)Power Density 1.6 w/ft̂ 2Daylight Penetration Vertical blinds on curtain wall glazing for winter conditionsSafety Clearly define circulation patterns for visually impairedMaintenance Issues Use long life lamps due to difficult accessibility to fixtures given height of spaceSpecial Criteria Create points of interest and "sparkle" for both normally and partially sighted
without becoming distracting.Avoid direct and reflected glare off glossy surfaces
Design Procedure Use grazing techniques to create vertical emphsis and eliminate reflected glareand create strong contrasts where necessary to guide occupants through spcace
Illuminance CriteriaNote vertical illuminance will be increased to guide occupants through the spaceArea Eh (fc) Ev (fc)Circulation Desk 30 10Corridors 10 3Lobby 10 to 15 3
Luminance CriteriaAccented element Contrast Lelement:LbgroundColumns 1:5Railing 1:5Elevator Doors 1:10Steel Beams 1:5Brick façade 1:5
Luminance RatioDesired Effect Max Luminance RatioBlending with surround 1:2Sofly accented 1:3Accented 1:5Stronly accented 1:10
T he National Research and Training Institute For the Blind 1800 Johnson St., Baltimore MD.
Lobby Lighting Design
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Skylight
Daylight Availability Analysis: *see appendix for full calcs* Using the polycarbonate glazing as described in the daylighting analysis, the daylight provided to the desk ranges from an average of 526 on a clear summer day to around 28 fc on an overcast day. This should provide more than adaquate illumination for any simple visual task on the circulation desk during the day. The diffuse glazing will also bring the
Date Sky Condition Time of Day Ehavg (fc) Max Eh (fc) Min Eh (fc) Avg/Min Max/Min STDDecember 21st Clear 10:00 AM 177 187 163 1 1 6December 21st Clear 12:00 PM 237 251 219 1 1 7December 21st Clear 3:00 PM 112 119 104 1 1 4December 21st Overcast 10:00 AM 39.7 42 36.7 1.1 1.1 1.2December 21st Overcast 12:00 PM 49.9 52.7 45.1 1.1 1.1 1.6December 21st Overcast 3:00 PM 28.3 30 26.2 1.1 1.1 0.9
June 21st Clear 10:00 AM 463 490 428 1 1 14June 21st Clear 12:00 PM 526 556 486 1 1 16June 21st Clear 3:00 PM 407 430 376 1 1 13June 21st Overcast 10:00 AM 91.4 96.6 84.4 1.1 1.1 2.9June 21st Overcast 12:00 PM 102 108 94 1 1 3June 21st Overcast 3:00 PM 81.6 86.3 75.4 1.1 1.1 2.6
T he National Research and Training Institute For the Blind 1800 Johnson St., Baltimore MD.
Lobby Lighting Design
Lighting Plan
Allison Brown Penn State University Lighting Option Spring 2003
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T he National Research and Training Institute For the Blind 1800 Johnson St., Baltimore MD.
Lobby Lighting Design
Fixture and Power Summary
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Fixture # of fix Lamp(s) type Voltage # of d lamps dir w Ballast (typical for lamp type) B watts Total wattsA3 (column accent) 2 T4 tungston halogen 120 1 100 - 0 200A6 (sconce) 2 CFM GF24-q3 277 1 26 Electronic Programmed Start 4 60A7 (railing uplight) 12 MRC 11 12 1 20 - 0 240A5 (linear fluorescent strip) 20 F28T5/835 277 1 28 Electronic Instant Start 2 600B8 (surface mounted CFL downlight) 2 CFM GF24-q3 277 1 26 Electronic Programmed Start 1 54B6 (recessed linear wallwash) 26 F28T5/835 277 1 28 Electronic Instant Start 2 780B7 (HID dl) 8 GT12 T6 Metal Halide 277 1 39 Metal Halide Pulse Start 9 384D3 (surface mounted up/downlight (atrium) 8 MasterColor CMH ED-37/3700 K 277 1 100 Metal Halide Pulse Start 18 944D2 (surface mounted skylight uplight) 8 MasterColor CMH ED-37/3700 K 277 1 400 Metal Halide Pulse Start 65 3720B1 (emergency dl) 4 CFM GF24-q3 277 1 26 Electronic Programmed Start 1 108C2 (mini-pendant) 3 T4 tungston halogen 120 1 50 - 0 150
Total 95 7240
T he National Research and Training Institute For the Blind 1800 Johnson St., Baltimore MD.
Lobby Lighting Design
*Note see electrical study for panel schedules
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Light Loss Factors (with clean environment every 12 months) Fixture Maint Cat LDD LLD RSDD BF Total LLF
A3 (column accent) IV 0.88 0.9 0.97 1 0.77A6 (sconce) II 0.93 0.86 0.94 0.95 0.71A7 (railing uplight) V1 0.88 0.9 0.9 1 0.71A5 (linear fluorescent strip) I 0.92 0.95 0.9 0.98 0.77B8 (surface mounted CFL downlight) V 0.88 0.86 0.97 0.95 0.70B6 (recessed linear wallwash) IV 0.88 0.95 0.97 0.98 0.79B7 (HID dl ) IV 0.88 0.95 0.97 0.9 0.73D3 (surface mounted up/downlight (atrium) II 0.92 0.8 0.94 0.9 0.62D2 (surface mounted skylight uplight) V1 0.88 0.85 0.94 0.9 0.63B1 (emergency dl) IV 0.88 0.95 0.97 0.95 0.77C2 (mini-pendant) II 0.93 0.9 0.94 1 0.79
Circuiting CalculationsNormal Power
Circuit # Fixture # of fixtures watts/fixture PF LF Voltage AmpsH4A # 8 D2 (surface mounted skylight uplight) 4 465 0.9 1.25 277 9.33H4A # 10 D2 (surface mounted skylight uplight) 4 465 0.9 1.25 277 9.33H4A # 12 B6 (recessed linear wallwash) 26 30 0.99 1.25 277 3.56H4A # 12 A5 (linear fluorescent strip) 20 30 0.99 1.25 277 2.73H4A # 12 D3 (surface mounted up/downlight (atrium) 8 118 0.9 1.25 277 4.73H4A # 12 A6 (sconce) 2 27 0.98 1.25 277 0.25H4A # 12 B8 (surface mounted CFL downlight) 2 54 0.98 1.25 277 0.50 L4A-1 #10 A3 (column accent) 2 100 1 1 120 1.67 L4A-1 #10 C2 (mini-pendant) 3 50 1 1 120 1.25 L4A-1 #10 A7 (railing uplight) 12 20 1 1 120 2.00
Emergency PowerEH1 # 7 B7 (HID dl ) 8 48 0.9 1.25 277 1.93EH1 # 7 B1 (emergency dl) 4 27 0.98 1.25 277 0.50
T he National Research and Training Institute For the Blind 1800 Johnson St., Baltimore MD.
Lobby Lighting Design
Welcoming Zone Results *Illuminance scale based on 400 lux
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Circuit # Amps AddedH4A # 8 9.33H4A # 10 9.33H4A # 12 11.77 L4A-1 #10 4.92EH1 # 7 2.42
Visitors enter the lobby and are greeted by the receptionist. The small pendant fixtures and sconces segregate the area and draw focus downwards towards the desk. The nautical quality of the fixtures tend to illustrate the atmosphere of Baltimore and help bring the outside world into the building. The average illuminance achieved is 35 fc which should be adequate illuminance for the visual tasks at hand. The diffuse lighting provided by the skylight uplights create the sense
ControlDay fixtures (7:00a.m. to 5:00 p.m.) Watts consumed
A6 60.00B6 780.00B1 108.00B7 384.00C2 150.00
Total 1332.00Night fixtures on (5:00 p.mp-?.)
All on Total 7240.00
T he National Research and Training Institute For the Blind 1800 Johnson St., Baltimore MD.
Lobby Lighting Design
Corridor Results
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T he National Research and Training Institute For the Blind 1800 Johnson St., Baltimore MD.
Lobby Lighting Design
Allison Brown Penn State University Lighting Option Spring 2003
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As occupants move through the corridors on either side of the lobby, they are guided by the smooth gradient of light provided by the linear wallwashers. In the distance, focus is drawn towards the columns and far door leading to the Multi-purpose room. The horizontal illuminance ranges from 10 to 5 fc with a vertical gradient of 50 fc to 5 fc.
Luminance scale based on 50 cd/m^2
T he National Research and Training Institute For the Blind 1800 Johnson St., Baltimore MD.
Lobby Lighting Design
Atrium Results
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I see the large atrium as a symbol of rising technology and advancement. To emphasize this metaphor, I tried to illustrate the vertical height by shooting light up and down the large steel columns supporting the atrium. By lighting the interior walls in the space, it can be viewed from the exterior. I did not want to disturb the open quality of the atrium, thus I used linear strip fixtures placed on the steel ceiling grid to highlight the metallic quality of the beams. I also wanted to bring out the metallic material of the railing which I highlighted with small recessed floor uplights. To contrast with the cool metallic materials, I grazed the brick doorway with a metal halide to bring out the texture of the
T he National Research and Training Institute For the Blind 1800 Johnson St., Baltimore MD.
Lobby Lighting Design
Design Conclusions
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Created “welcoming zone” at the circulation desk and provided adequate task illumination for the secretary
Created a sufficient guide for visually impaired by using strong smooth vertical gradients of light and highlighting important entities in the distance
Created dual
T he National Research and Training Institute For the Blind 1800 Johnson St., Baltimore MD.
Lobby Lighting Design
Allison Brown Penn State University Lighting Option Spring 2003
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