Executive Summary This report is an analysis of the existing lighting conditions for the Mulitpurpose Room, Reagan Country Café, Exhibition Hall and Presidential Learning Center of The Ronald Reagan Presidential Library addition. After acquiring room reflectances, luminaire types, and light loss factors for each luminaire, I was able to analyze the lighting system s performance of each space using the lighting software program AGI. I compared the results from this program to the lighting design criteria that I established for each space. I also calculated the power density for each room and compared it to the power allowances of ASHREA Standard 90.1 and California s Title 24. After review each space and tasks, it is evident that the lighting system for this building not only demands an attractive appearance, but it also must be very flexible while consuming a small amount of energy to comply with California s strict energy codes. The existing dimming system along with the daylighting controlled solar shades meet the demands of this space very well. Adequate light levels were provided for most of the spaces, although, at full intensity, I felt that the Learning Center and Servery area are over lit. These rooms are controlled by a dimming system, though, which gives the employees flexibility. Many high wattage fluorescent sources were used to achieve the light levels, this attributed to high power density of the Multipurpose Room that exceed the power allowances of ASHREA and Title 24. From analyzing the existing conditions, I learned a lot about each space and the demands of the lighting system. I was also able to develop design criteria which will be the first step in my lighting design.
multipurpose room and cafe balcony seating Multipurpose Room and Café Balcony Seating Furniture 30 60 Round Tables, 300 chairs, 50 artificial trees Floor Plan and Lighting Layout First Floor:
multipurpose room and cafe balcony seating Second Floor:
multipurpose room and cafe balcony seating Section to Show Roof:
multipurpose room and cafe balcony seating Finishes North and West Walls: Paint Finish Reflectance 83% Munsell Color 7.33PB 9.2/0.6 South and East Walls: Textile Wall Covering Reflectance 43% Ceiling: Lower Level Under Balcony Acoustical Tile White Color Selected Reflectance 86% Upper Level Redwood Planking - 25% Floor: Carpet 21% Sherwin Williams Color Artichoke *Assumed Value Carpet was not selected yet Glazing: Low-E Insulating Glass Transmittance 45% Reflectance 8%
multipurpose room and cafe balcony seating Roller Shades For daylighting control, the double height windows of the Mulitpurpose Room are equipped with motorized solar shades. The shades are pre-programmable to desired positions in addition to the full-up and full-down position. A recessed wall-mounted touch screen interface panel, located A/V Control Room adjacent to Multipurpose Room, allows the user to change the shade position updown and to the programmed stops. The touch screen indicates the current position of the shade, desired position of the shade, and shade status feedback. The fabric is made with PVC coated fabric yarns. Solar properties of the shades are as follows: Solar Transmittance: 6% Solar Reflectance: 11% Visual Transmittance: 7% Openness Factor: 5% Window Section Shade Roller Detail
multipurpose room and cafe balcony seating Existing Lighting TYPE DESCRIPTION LAMPS VOLTAGE TOTAL WATTS BALLAST QUANTITY 6" open downlight, vertical lamp, B3 Matte clear alzak reflector and (1) F32TBX/3000K 277 32 Dimming 4 Trim, flat flange 9" recessed square downlight, F Clear specular reflector, clear (2) F42TBX/3000K 277 84 Dimming 35 Specular cross blades, flat flange 4" lensed wallwasher *K Double lens, bronze finish (1) 70W CMH/PAR30FL 120 70 Note 1 11 5" aperture downlight, M 0-30 tilt conoid, field-adjustable (1) 400W/T4 MC/F 120 400 NA 42 (frosted lamp) 5" aperture downlight, M1 0-30 tilt conoid, field-adjustable (1) 250W/T4 MC/F 120 250 NA 30 (frosted lamp) Concealed cove light, anodized N Reflector w/ mill finish ballast compartment, match elliptipar (2) F55T5HO/3000K 277 110 Dimming 70 Design finishes 4" open adjustable downlight, *P Matte champagne gold alzak (1) 71W MR16/NFL25 277 71 Electronic 38 Reflector, flat flange, lockable CONSTANT COLOR Lamp position, micro-prism Beam softening lens Decorative wall sconce, die-cast Q Aluminum, white mat glass with (1) 300W HALOGEN 120 300 NA 13 Silk-screened SU surface (cannot find fixture on internet) * Provided with magnetic low voltage transformer
multipurpose room and cafe balcony seating Luminaire BF Cleaning Interval Maintenance Category LLD RSDD LDD Total LLF B3 0.95 Every 12 months IV 0.85 0.97 0.89 0.73 (clean) F 0.95 Every 12 months IV 0.85 0.97 0.89 0.73 (clean) K 0.85 Every 12 months IV 0.80 0.97 0.89 0.69 (clean) M NA Every 12 months IV 0.85 0.96 0.89 0.72 (clean) M1 NA Every 12 months IV 0.85 0.96 0.89 0.72 (clean) N 0.95 Every 12 months VI 0.95 0.97 0.89 0.82 (clean) P 0.95 Every 12 months IV 0.80 0.97 0.89 0.69 (clean) *Assumptions: Incandescent lamps 0.80 LLD. Philips and Sylvania website only list approximate lumens or halogen lamps. I assumed 0.80 because LLD is less for an incandescent than a fluorescent. Existing Power Density: 5.1 W/sq.ft. Lighting Controls This room is connected to a Lutron Grafik Eye 6000 dimming system. All light levels are controlled from a programmable master PC located in the electrical closet on the first floor. Each dimmer was assigned to a specific zone, which was chosen by the lighting designer/electrical engineer. The downlights in the beams, second floor wall sconces, wallwashers, cove fixtures, and downlights on the lower floor were each designated their own zone and are dimmed separately. This system is capable of storing up to 4 different preprogrammed scenes for each room plus off. An integral astronomic time clock based on longitude, latitude, and daylight savings schedule for Simi Valley is also incorporated for the ability to program the different scenes to turn on at different times of the day. The time clock also schedules the lights to turn off at a certain time of the day. The astronomic preprogrammed scenes can be overridden by the 5-button wall station, recessed into the wall of each room, or by a handheld programmer. The 5-button wall station allows an employee to choose one of the 4 programmed scenes plus off and to fine-tune light levels with a raise/lower switch. The handheld programmer, which is run by the facility manager, has the capability to change intensity and fade time for each zone without using the master PC. Emergency lighting is also provided and connected to a separate emergency dimming panel.
multipurpose room and cafe balcony seating Task Descriptions This room will be used for many types of events ranging from presentations during the day to a formal dining event at night. A presentation may include the horizontal tasks of reading, writing with a pen or #2 pencil, and eating. It will also include presenting; therefore, the presentation display will be a vertical surface. A reception or lunch in will include the horizontal task of eating and a vertical task of listening to a speech. Looking at artwork and decorations on the vertical surfaces will also be a task. This is very flexible room and will have many different types of activities, therefore, the tasks will be endless. Design Criteria System Control and Flexibility: It is essential that the lighting system be easily controlled to different light levels for each event s needs. Dimming, switching, multiple lighting systems and adjustable luminaires may be possibilities to achieve flexibility. Daylight Integration: The double height windows and California location provide an opportunity for successful daylight integration and potential energy savings. Natural daylight is important to this room to give it the indoor/outdoor feeling that architect envisioned. Appearance of Space and Luminaires: The appearance of each space in this Library/Museum is important because this building is meant to be an attraction. The architecture and lighting of this building should be a pleasurable experience for visitors to enjoy while viewing the displays. I feel that the appearance of the luminaires should be carefully considered. Surface Characteristics: The redwood planking ceiling system is one of the architectural features of this room. It is important for the lighting system to enhance the color and texture this ceiling surface. Reflected Glare: The double height windows may cause unwanted reflected glare from the lighting system. Reflected glare can be avoided by appropriate aiming geometry and luminaire placement. It also may be avoided by choosing proper beam angles. Atmosphere/Theme: This room will be used for very formal events in the evening. It is also capable of opening to the Peace Plaza for an indoor/outdoor atmosphere. For night events, I would like to create a very peaceful but fancy atmosphere with the lighting system to incorporate the idea of the Peace Plaza. Candles can be used as a symbol of peace as well as to set a mood at a fancy dinner table. I would like to use the flame as an inspiration to my lighting design for this room. Sparkle may be one way
multipurpose room and cafe balcony seating to achieve this look. The balcony level will be used for seating for the Reagan Country Café, I would like to continue the country theme on this balcony with decorative accent light. Accent Issues: Art work and Ronald Reagan paraphernalia will be displayed on the walls. It is important to accent these. Shadows: With the ceiling height being two stories, it is important to avoid unwanted shadows under the balcony and to also avoid shadows on people s faces. Horizontal Illuminance: Reception 20 fc (IES - 10 fc) Education/Lecture 40 fc (IES - 30 fc) Group Gathering 20 fc (IES - 10 fc) Sufficient light must reach the task plane for each event. The lighting system must be flexible enough to provide different light level to the task plane for each event type. Vertical Illuminance: Reception/Dining 5 fc (IES 5 fc) Education/Lecture 10 fc (IES 5 fc) Vertical Illuminance is also important to consider for visibility. The amount necessary is, again, dependent on the event. The lighting system should be flexible to provide different levels of vertical illuminance. Power Density: ASHREA/IESNA 90.1, 1999 Power Allowance: 1.5 W/sq.ft. *1.0 W/sq.ft. can be added for decorative wall sconces and highlighting art work. California Title 24 Power Allowance: 1.5 W/sq.ft. * 0.6 W/sq.ft. can be added for ornamental chandalilers and sconces that are switched or dimmed on circuits different from the circuits for general lighting. Existing Power Density: 5.1 W/sq.ft.
multipurpose room and cafe balcony seating Analysis and Evaluation of Existing Systems AGI Version 1.7 to analyze this room. I used all surface reflectances and light loss factors stated above in my computer model. I could not find IES files for the decorative sconces that will be lining the walls of the balcony. Because of the complexity of this space, I kept my mesh size at the default 3.1 for basic task plane calculations. For my final AGI rendering, I will have to increase my mesh size significantly to enhance rooms surfaces.
multipurpose room and cafe balcony seating I placed three horizontal calculation grids on the work plane and eating plane to analyze horizontal system performance; one at the balcony level, one under the balcony, and one at the center of the lower level. I also analyzed vertical illuminance by placing a vertical grid on the lower level. Most vertical presentations will take place on this floor. The results from AGI were as follows: Horizontal Illuminance Center of lower level Avg 45.5 fc Horizontal Illuminance Balcony Seating Avg 60.0 fc Horizontal Illuminance Under Balcony Avg 30.9 fc Vertical Illuminance Center of Lower Level Avg 6.18 fc I was surprised at the light levels the downlights resulted in with ceiling height being almost 40 high. They levels are higher then I would recommend is necessary for the events that will be taking place, but this computer analysis was done using the full intensity of the system. The luminaires may be dimmed with the dimming system explained in the control section. I feel the dimming controls, daylighting shades, and low-e windows chosen in this room work very well for the multipurpose necessities of this space. The quality of the California sun will allow the room to have a fairly high ambient daylight contribution to this space, therefore the lighting system will only require low levels during the day. The shades seem to work well for daylight control, but I am concerned about the aesthetics of the room. If the shades are in the full down position, the shades are only 5% openness factor and much of the view will be lost to outdoor mountain range. This may be the only successful option for daylight control, but I am interested to see if there are any other alternatives that allow you to enjoy the view. Though this space is producing results that I feel work well, the power density is extremely high. Title 24 and ASHREA both require the room to not exceed 1.5W/sq.ft. The 5.1W/sq.ft. that I calculated is much higher than this. The recessed downlights in the ceiling are 250W and 400W which have a large impact on the high power density. Another fixture selection may provide some improvements in energy savings.
reagan country cafe and servery Reagan Country Café and Servery Furnishings: Tables, chairs, counters, food service equipment Floor Plan
reagan country cafe and servery Finishes Serving Area Walls: Combination of Random Tile Pattern Ceramic Tile Reflectance 59% Ceramic Tile Reflectance 3% Floor: Ceramic Tile Center of Room Reflectance 58% Ceiling: Acoustical Tile White Color Selected Reflectance 86%
reagan country cafe and servery Seating Area Walls: Reflectance 83% Munsell Color 7.33PB 9.2/0.6 Floor: Ceramic Tile Center of Room Reflectance 58% Ceramic Tile Lines Perimeter Reflectance 37% Ceiling: Acoustical Tile White Color Selected Reflectance 86% Cashier South Wall: Combination of Random Tile Pattern Ceramic Tile Reflectance 59%
reagan country cafe and servery Ceramic Tile Reflectance 3% Floor: Ceramic Tile Reflectance 58% Roller Shades There are solar shades in seating to control the daylight from the west-facing window. See previous Roller Shades section from Multipurpose Room for detailed explanation. Solar Transmittance: 6% Solar Reflectance: 11% Visual Transmittance: 7% Openness Factor: 5% Existing Lighting TYPE DESCRIPTION LAMPS VOLTAGE TOTAL WATTS BALLAST QUANTITY 2x2 recessed, 3 deep parabolic, A1 9 cell louver grid ceiling, low (2) F31U6T8/3500K 277 62 Dimming 20 iridescent semi-specular static 2x2 recessed, lensed grid ceiling A3 static, flush steel door, triple (2) F31U6T8/3500K 277 62 Electronic 6 gasketing, steel housing 6 /7 lensed downlight B2 horizontal lamps, whit splay, (2) F13DBX (4P)/3000K 277 26 Dimming 5 prismatic lens, wet location Low voltage hanging pendant, D4 Table lamp, concertina-barrier (2) 20W Halogen 120 40 NA 5 Expandable polycarbonate * Provided with magnetic low voltage transformer.
reagan country cafe and servery Luminaire BF Cleaning Interval Maintenance Category LLD RSDD LDD Total LLF A1 0.95 Every 12 months IV 0.91 0.96 0.89 0.78 (clean) A3 0.95 Every 12 months IV 0.91 0.96 0.89 0.78 (clean) B2 0.95 Every 12 months VI 0.86 0.96 0.87 0.72 (clean) D4 NA Every 12 months II 0.80 0.95 0.94 0.71 (clean) Assumptions: Incandescent lamps 0.80 LLD. Philips and Sylvania website only list approximate lumens or halogen lamps. I assumed 0.80 because LLD is less for an incandescent than a fluorescent. Existing Power Density: Dining Area - 1.73 W/sq.ft. Food Preperation 1.41 W/sq.ft Lighting Controls The seating area of the Café is also controlled by the Lutron Grafik Eye 6000 dimming system (see previous Multipurpose Room Lighting Controls for detailed explanation of system). The decorative pendants, closest to the window, were assigned to a separate zone from the parabolic troffers. A two-button wall station is provided for two preprogrammed scenes for this area. The serving area is controlled with three on/off switches. On switch is designated to each lighting system; parabolic troffers, lensed troffers, and lensed downlights. There is not an occupancy sensor in this area. Tasks The tasks that will require horizontal illumination are eating, displaying food/food selection, serving food, food preparation and typing on the cash register. Dinner table conversation and decorative Ronald Reagan Memorabilia that will be hanging on walls will require vertical illumination. The decorative elements, Ronald Reagan paraphernalia, will be of special interest.
reagan country cafe and servery Design Criteria Horizontal Illuminance: Dining - 30 fc (IES 10 fc) Food Display 40 fc (IES - 50 fc) Cash Register 20 fc (IES - 30 fc) Food Preparation 50 fc (IES 50 fc) Selecting a food choice and eating are the primary tasks of this area, therefore, it is import to provide the proper amount of light to the table and enough light to enhance the appearance of the food. There is also a checkout area with a cash register. Enough light must be provided to the keyboard for typing. Vertical Illuminance: Dining - 5 fc (IES 3 fc) Food Display 5 fc (IES no recommendation) Cash Register - 3fc (IES 3fc) Food Preparation 3 fc (IES 3 fc) Vertical Illminance is not as import as horizontal illuminance, although, a level of 3 to 5 fc should be provided for dinner conversation, food display, food preperation, and cash register. Daylight Integration: This space also has large areas of glazing for the visitor to enjoy the view of the mountains while eating. As was in the Multipurpose Room, it is important to integrate daylighting for energy savings and to control it to a comfortable level for eating. Appearance of Space and Luminaires/Theme: The architect wished for a country western theme with Ronald Reagan paraphernalia for this café. The appearance of the luminaires should be carefully chosen to fit in with the country theme. This room should also be entertaining and enjoyable to be in. Reflected Glare: Reflected glare must be avoided on all of the glass surfaces and counter tops for visual comfort in this space. Color Appearance: Color temperature can have an impact on the appearance of the food. It will be important to select the correct color temperature to provide desirable food presentation. Direct Glare: Direct glare from the fixtures should also be avoided prevent color washout when view the food selections.
reagan country cafe and servery Light Distribution on Task Plane (Uniformity): The counters where the employees will be preparing food and displaying food will require an even distribution along the horizontal surface. Unwanted shadows should be avoided so the workers can see everything on the task plane. Cleanliness of Space: The kitchen and serving area should be a very clean for sanitary purposes. Lensed fixtures with proper gasketting should be selected. ASHREA/IESNA 90.1, 1999 Power Allowance: Dining Area - 1.4 W/sq.ft. Food Preperation 2.2 W/sq.ft. *1.0 W/sq.ft. can be added for decorative wall sconces and highlighting art work. California Title 24 Power Allowance: Dining Area 1.1 W/sq.ft. Food Preparation 1.7 W/sq.ft. * 0.6 W/sq.ft. can be added for ornamental chandeliers and sconces that are switched or Dimmed on circuits different from the circuits for general lighting. Existing Power Density: Dining Area - 1.73 W/sq.ft. Food Preperation 1.41 W/sq.ft.
reagan country cafe and servery Analysis and Evaluation of Existing Systems AGI Version 1.7 to analyze this room. I used the surface reflectances, luminaries, and light loss factors stated above in my computer model. The decorative pendants closest to the window in the seating area were not included in this computer analysis. I set my mesh level to 4.1 for this space.
reagan country cafe and servery I chose four horizontal task planes to analyze the effectiveness of the lighting system. I chose the serving counter, cash register, food display area, and seating area for horizontal surfaces. I also placed a vertical grid near the cash register to simulate vertical illuminance on a face. The results calculated from AGI area as follows: Horizontal Illuminance Serving Area Avg 78.7 fc Horizontal Illuminance Cash Register Avg 35.3 fc Horizontal Illuminance Food Display Avg 38.1 fc Horizontal Illuminance Seating Avg 31.8 fc Vertical Illuminance Cash Register Avg 5.09 fc The light levels are fairly close to my recommendations for this room. Though there will be many visual tasks in the serving area, I feel that 80 fc is too high for this area. This area is not
reagan country cafe and servery connected to the dimming system. A dimming switch may be a possibility to bring the light level down. The lensed fixtures selected for the serving area are necessary for sanitary conditions. The vertical illuminance of 5.09 fc calculated for the cash register complies with the vertical levels of 3 to 5 fc that I feel are necessary. Though the 2 x2 parabolic fixtures selected for the seating area provide adequate light levels, a more decorative fixture may be more desirable to meet my design criteria of appearance. Both areas, seating and servery, comply with ASHREA and Title 24 standards with the allowance of the ASHREA s 1.0W/sq.ft and Title 24 s 0.6W/sq.ft. addition for the decorative fixtures in the seating area.
presidential learning center Presidential Learning Center Furniture: 18 Tables, 180 chairs, podiums, three refrigerators, 3 computers, 3 printers, copier, 2 maps, 2 globes, dry erase boards Floor Plans
presidential learning center Finishes: North, East, West Walls: Textile Wall Covering Reflectance 43% South Wall: Reflectance 83% Munsell Color 7.33PB 9.2/0.6 Ceiling: Acoustical Tile White Color Selected Reflectance 86% Floor: Assumed Value Carpet was not selected yet Carpet 21% Sherwin Williams Color Artichoke Existing Lighting TYPE DESCRIPTION LAMPS VOLTAGE TOTAL WATTS BALLAST QUANTITY 2x2 recessed, 3 deep parabolic, A6 9 cell louver, grid ceiling, low- (2) F31U6T8/3500K 277 62 Dimming 36 Iridescent semi-specular static 4 under-cabinet fixture, C2 Low profile solid front, (1) F32T8/3500k 120 32 NA 4 Prismatic lens, rocker switch
presidential learning center Luminaire BF Cleaning Interval Maintenance Category LLD RSDD LDD Total LLF A6 0.95 Every 12 months IV 0.91 0.98 0.89 0.79 (clean) Existing Power Density: 1.4 W/sq.ft. Lighting Controls The lighting system in this classroom is also connected to the Lutron Grafik Eye 6000 dimming system (see previous Multipurpose Room Lighting Controls for detailed explanation of system). The row of lights along the north wall is controlled separately by different zone designation. This classroom has the capability to be split into two classrooms with a partition wall; as a result, the lighting system was separated as if it were two classrooms. Therefore, there are four different dimming zones in the learning center. There are 5-button wall stations located on the south wall near each of the entry doors. There are also eight fixtures connected to the emergency dimming panel for emergency lighting. 120V under cabinet fixtures are also used in the galley area controlled by an on/off rocker switch. Tasks Tasks in the classroom that will require horizontal illuminance are writing with a #2 pencil or pen, reading a book, reading a handout, arts and crafts activities, and drawing with markers, pens, pencils. Other classroom activities will require vertical illumination including reading the white marker boards and looking at maps. The white marker board and maps will be of special interest. Design Criteria Horizontal Illumination: Desks - 50 fc (IES 30 fc) It is important in a learning environment with intense visual tasks that a large amount of light reaches the workplane for a positive learning environment. I increased the light level that IES recommends based the light level that I feel is most adequate for faster learning. Vertical Illumination: White Board 30 fc (IES 5 fc) Maps 50 fc (IES 50 fc) Vertical illuminance is important because there are vertical surfaces that need to be lit such as the marker board, maps, and other vertical displays used for teaching. Light Distribution on Surfaces: Direct Glare:
presidential learning center Direct glare should be avoided for better visibility and performance. Luminaires that limit glare at viewing angles of desks should be chosen. Reflected Glare: Reflected glare could potentially be a problem because of the many glossy surfaces in this room, such as VDTs, maps, marker boards, and projection screens. It is important to avoid this for a quality-learning environment and can be avoided by proper geometrical placement of the luminaires and proper fixture selection. Luminance of Room Surfaces: The brightness of various surfaces in the normal field of view must be kept within accepted limits recommended by the IES to avoid visual discomfort and fatigue Paper and Adjacent VDT: 3:1 Task and Adjacent Dark Surrounding: 3:1 Between Task and Nonadjacent Surfaces: 10:1 Ceiling Max to Min Luminance: 8:1 Source/Task/Eye Geometry: Fixture and VDT placement should be considered. The angular relationships between the viewer, the task and the luminaire can have an effect on the contrast of the surface. ASHREA/IESNA 90.1, 1999 Power Allowance: 1.5 W/sq.ft. California Title 24 Power Allowance: 1.6 W/sq.ft. Existing Power Density: 1.4 W/sq.ft.
presidential learning center Analysis and Evaluation of Existing Systems AGI Version 1.7 to analyze this room. I used all surface reflectances, luminaries, and light loss factors stated above in my computer model. Because there is no indirect lighting, I left the mesh level at the default 3.1 for this space. I placed 3 calculation grids in this room to analyze illuminance levels; horizontal workplane, vertical white marker board, and horizontal counter. The results were as follows: Horizontal Illuminance Workplane Avg 58 fc Vertical Illuminance White Board Avg 27.5 fc Horizontal Illuminance - Counter Avg 110.5 fc Comparing these results to the design criteria that I listed, the lighting system performs well. The horizontal illuminance is 8 fc higher than I feel necessary, but these calculations were done at full intensity. This classroom can be dimmed to a lower level. Looking at the ratio of maximum to minimum illuminance, there is a fairly even distribution across the work plane for this large area. The vertical illuminance on the marker board was also very close to what I think is an adequate
presidential learning center illuminance (30 fc), however, there is sharp illuminance cutoff from the top to the bottom. The task lighting provides a very high illuminance right under the fixture with a sharp cutoff, also. This may be a glare source and cause uncomfortable illuminance ratios for someone sitting in the room. The luminaires chosen decrease direct glare with semi-specular louvers. The fluorescent lamps are also easy to dim. A direct lighting system seems to be a good choice for this room to comply with the power density requirements, although, a direct/indirect system may be worth looking into. The power density of this room meets both ASHREA and Title 24 power allowance at full intensity. It will demand less energy if dimmed. Overall, I feel that the lighting system works very effectively provide adequate horizontal and vertical illuminance levels to the task planes. The intensity of the task lights may be a glare issue to consider, though.
outdoor peace plaza Outdoor Peace Plaza Furnishing Benches and tables Lighting Plan
outdoor peace plaza Materials Painted Concrete Reflectance 48% Existing Lighting TYPE DESCRIPTION LAMPS VOLTAGE TOTAL WATTS BALLAST QUANTITY Exterior recessed aisle fixture, Concrete pour, bronze finish, G specular alzak hammertone (1) 50W MH 120 50 NA 19 Reflector, wet location 2 ¼ low voltage accent fixture, *H White finish, diffused lens, (1) 35W MR11/FL 120 35 NA 123 Wet location Modular in-grade fixture, L Double lens, bronze finish (1) 70W CMH/PAR30FL 120 70 NA 7 * Provided with remote magnetic low voltage transformer. Lighting Controls A separate dimming panel is designated for the exterior fixtures in the Lutron Grafik Eye 6000 dimming system (see previous Multipurpose Room Lighting Controls for detailed explanation of system). There are three zones for the outdoor Peace Plaza, one for each luminaire type. All of the same type luminaires are connected to the same zone. The system is programmed to turn on and off at certain times of the day by the astronomic time clock. This changes daily by preprogrammed input times based on weather data for Simi Valley. There is only one scene for the exterior lighting. It can be overridden to change the intensity and fade time of each zone by the handheld programmer, which is controlled by the facility manager, though. Tasks There are not that many tasks that demand large amounts of illuminance in the Plaza. The Plaza serves as an entrance to the Multipurpose Room. Guests will be walking in from the limousine entrance, therefore, requiring a low level horizontal illuminantion on the ground. Three dimensional art pieces will also be display on the Plaza as well as the shrubbery surrounding the plaza for aesthetics. The vertical tasks include viewing the artwork.
outdoor peace plaza Design Criteria Horizontal Illuminance: Plaza Ground - 5 fc (IES 5 fc) Focal Points 5 fc (IES 5 fc) It is important to provide sufficient horizontal illuminance for safety reasons and comfort of the guests. Vertical Illuminance: Plaza - 3 fc (IES 3 fc) Focal Points 15 fc (IES 3 fc) Vertical Illuminance is again important for safety issues. It is also important on three dimensional objects such as trees and artwork that will be highlighted. Color Appearance: Color appearance is important to consider in achieving the warm feeling that I would like to create. Also, three dimensional objects will displayed here, the CRI of the lamp should be high to assure good appearance of the objects. Feeling/Atmosphere: I would like to create a very peaceful environment with my lighting design. I would like to highlight architectural features and three dimensional art pieces but with soft warm light and sparkle to give the feeling of a candle flame. Direct Glare: For this exterior, I feel that the fixtures should blend in with the surroundings. A fixture that creates glare will create distraction and color washout. Light Pollution: With the recent Light Pollution concerns, it is important for the luminaires selected to not spill light into the environment. Peripheral Detection: I would like for the guests to feel comfortable when walking in the entrance and sitting outside at night. The lighting system should let them know where they are and the boundaries of the seating area. Reflected Glare: The concrete is finished with a glossy covering. Reflected glare should be avoided off of the concrete.
outdoor peace plaza Surface Characteristics/Modeling of Objects: Texture enhancement of the three dimensional objects and the patio should be considered to achieve with lighting effects. I feel that is important to bring out the curves and bumps of the objects of interest with my lighting design. ASHREA/IESNA 90.1, 1999 Power Allowance: 1.0 W/sq.ft. for decorative lighting Existing Power Density: 0.43 W/sq.ft. Existing Lighting System Analysis All of my fixtures were used for decorative purposes to light the shrubs and to light rail along the outside of the plaza. I did not perform an AGI calculation on this because the lighting is decorative. Lighting was not provided nighttime art work. I would like to incorporate sculpture lighting into my design.
exhibition gallery Exhibition Gallery Furnishings No permanent furniture, all temporary exhibition Floor Plan
exhibition gallery Finishes Walls: Carpet Tile 52% Sherwin Williams Color Ecru *Assumed Value Carpet was not selected yet Floor: Carpet Tiles 20% Sherwin Williams Color Mink *Assumed Value Carpet was not selected yet Ceiling: Paint Finish Reflectance 83% Munsell Color 7.33PB 9.2/0.6 Existing Lighting TYPE DESCRIPTION LAMPS VOLTAGE TOTAL WATTS BALLAST QUANTITY 5 open downlight, B6 Matte clear alzak reflector (1) 52W INC/CAP 120 52 NA 47 And trim, flat flange Luminaire BF Cleaning Interval Maintenance Category LLD RSDD LDD Total LLF B6 1.0 Every 12 months IV 0.80 0.98 0.89 0.70 (clean) Assumptions: Incandescent lamps 0.80 LLD. Philips and Sylvania website only list approximate lumens or halogen lamps. I assumed 0.80 because LLD is less for an incandescent than a fluorescent. Lighting Controls This room is equipped with intensive controls for dimming flexibility. The fixtures are connected to the main dimming system (see previous Multipurpose Room Lighting Controls for detailed explanation of system), but there is also a wall mounted control station within the room. Each fixture and adjacent track section can be dimmed separately by a dimming switch in the control station providing 64 dimming switches for this room.
exhibition gallery For automatic shutoff and turn-on by the astronomic time clock, the normal power downlights were all assigned to one zone. Emergency lighting is also provided and connected to the emergency panel of the dimming system. The emergency luminaries, however, were designated two different zones. One zone is the row of fixtures closest to the room entry along the south wall for increased emergency illuminance. All other emergency luminaries are connected to a separate zone. Tasks The tasks in this room will be setting up art work and looking at the art work. Setting up the art work will require both vertical and horizontal illuminance. The artwork itself will be changing periodically with different displays ranging from horizontal display cases to vertical canvas paintings. It will also require vertical and horizontal lighting. Design Criteria Horizontal Illumination: Exhibition Cases, 3-dimensional objects 30 fc (IES 30 fc) Workplane 30 fc Horizontal illuminance intesity is important for the visual tasks necessary in setting up the art work. It is also important for exhibition cases with a horizontal surface. Vertical Illumination: Exhibition Cases, 3-dimensional objects 20fc (IES 5 fc) Flat Displays 30 fc (IES 30 fc) Workplane 10 fc Vertical illuminance levels are more import for the view flat display and three dimensional objects. I raised the value recommended by the IES for vertical illuminance of exhibition cases and three dimensional objects because I do not feel that 5 fc is sufficient light for view these. System Control and Flexibility: This room will be changing exhibitions frequently; therefore, it is important to have a lighting control system that will allow several dimming levels and fixtures that can easily be aimed. Color Appearance: The color appearance is very important for visitors to perceive the true colors of the displays. The CRI must be high. A cooler color temperature makes paintings and color objects look very crisp. Direct Glare: It is very important in a gallery that the track fixtures be aimed properly and possibly have side shields to avoided direct glare.
exhibition gallery Reflected Glare: Because the exhibitions may have glossy surfaces or may be enclosed in glass cases, reflected glare will be an issue. Reflected glare can be avoided by located luminaries at the right geometry and diffuse lenses. Modeling of Objects: The objects that are being displayed in this room will take careful consideration for proper modeling. A dimming system, correct placement of luminaires, and proper aiming can be controlled to model these objects effectively. Color filters may also be a consideration to achieve the modeling desired. Shadows: It will be important to avoid shadows from three-dimensional objects in unwanted places. Proper geometrical placement of the fixtures and fill light can reduce shadows. ASHREA/IESNA 90.1, 1999 Power Allowance: 1.0 W/sq.ft. for general exhibition *1.0 W/sq.ft. may be added for highlighting art work California Title 24 Power Allowance: 2.0 W/sq.ft. Existing Power Density: 0.63 W/sq.ft. *For downlights only. The number of track fixtures and type of track fixture was not selected yet. 1.37 W/sq.ft. may be used for the additional track fixtures to comply with Title 24. Analysis and Evaluation of Existing Systems AGI Version 1.7 to analyze this room. I used all surface reflectances and light loss factors stated above in my computer model. The only luminaire listed on fixture schedule is B6 which is a recessed downlight. This room is equipped with a track, but no track fixtures were designated yet, therefore, I only ran the calculations for the recessed downlight system. The values may seem low, but track lighting will be added to be aimed at the art work. I used the default setting of 3.1 mesh size for simple workplane calculations.
exhibition gallery I placed vertical calculation grids in places the art work would be; one in the center of the room facing west, one in the center of the room facing north, and one on the wall. I also located a calculation grid along the workplane. The AGI results for these grids were as follows: Vertical Illuminance Center of room facing west Avg 1.62 fc Vertical Illuminance Center of room facing north Avg 2.15 fc Vertical Illuminance East Wall Avg 0.43 fc Horizontal Illuminance Workplane Avg - 5.80 fc These light levels are very low for the power density of this system. The track fixtures will have to provide the 30 fc to the art exhibits. 5.80 fc is not adequate light for this space. A compact fluorescent lamp may be an option to increase light levels with a lower power density. The dimming system and track system work well with this space for flexibility.