PROJECT TWOINTEGRATION OF LIGHTING AND ACOUSTICS KEVIN VAZQUEZ
ARC- 482 ENVIRONMENTAL DESIGN III
Illumination Conceptual Approach Lighting is essential for visual tasks and helps maintain attention levels in classrooms. By using luminaires that combine direct light on the work surfaces with an indirect light aimed towards the ceiling, a varying and appropriate concentration of light can be distributed throughout a classroom. To get high enough light levels, several luminaires in a row is recommended in the three classrooms chosen for the Obama Center educational wing for this lighting project. By having several daylight sensors, this can ensure that all students in the room get enough light – while at the same time reducing energy consumption. Students spend their day staring down at the desk; frequent interaction with the teacher, fellow students and the teaching surface (whiteboard, chalkboard or interactive screen) mean that their gaze is moving around the room and their focus constantly changing. Often the contrasts between the lighting of the work surfaces, walls and the ceiling tire or strain the eye. It’s a well-known fact of life that light makes us feel good. Light affects us not just in a visual sense, but biologically and emotionally as well. New research has shown that good lighting actually increases job satisfaction in learning environments. The results of a study by Lund University and the London City University shows that the human body’s own days clock, the production of melatonin and cortisol are affected in environments where light levels are high enough and there is a balance between direct and indirect light. The study proved that enhancing the ambient lighting in the classroom produces an increase in well-being and better study results – without increasing energy consumption. By using luminaires that combine direct light on the work surfaces with an indirect light aimed towards the ceiling, a varying and appropriate concentration of light is distributed throughout the room. Vertical light on the wall, 300 lx, provides good ambient light. Indirect light on the ceiling, 300 lx, also provides good ambient light and students who are more alert and perform better. Direct light from the luminaires always gives 500 lx on the table, to make the visual task easier. For reading, uniformity of light is important whereas practical and intricate tasks require high levels of light. Young people need less light than older people in order to perform the same tasks. As we age, our sensitivity to glare also increases, therefore more light may be needed for adult education classrooms, which these three classrooms accommodate. The DTI type 2 Beta luminaire was chosen for these classrooms and is among the best solution.The rooms have a well-balanced combination of direct light at the work surface and ambient light against the walls and ceiling. The suspended luminaires efficiently distributes the light without glare.
Luminaire Spec. Sheets- DTIA type 2 Beta Installation Wire suspension via friction locks on the luminaire. Wire suspension ordered separately, see Accessories. Connection Single – connections are made at the end of the luminaire and are concealed by the end-cap. 5-way snap-in terminal block at one end. Continuous installation – 5-way snap-in terminal block at each end and through-wiring cable 3x1.5 mm² as standard. With dimming, 5-way snap-in terminal block, 1-phase through-wiring possible. Design Body of enamelled sheet steel with white (RAL 9016) finish. End-caps of polypropylene plastic. When continuous installation is required the luminaire is supplemented with continuous couplers and end-caps; see accessories. Louvre Beta – double parabolic reflector louvre with satin matt metallised aluminium side and cross-blades with excellent reflection characteristics (> 92 %), integrated into a single unit. Re-lamping is performed from the top, without removing the louvre. Earthed. Reflector The louvre acts as a reflector. Light distribution Symmetrical. Emergency lighting Some models are available with emLED positioned in the first cell on the louvre. Read more about emLED in Emergency Lighting. Dimming Most models can also be equipped with other ballasts for dimming. Accessories Installation accessories, see Accessories. Designed by Yellon.
Classroom
Dimensions
Light Distribution
2x32/35 W, 2-cell
Fluorescent lamp T5,FDH W=35 CCT(K)=2700 SOCKET=G5 CRI=Ra>80 LM=3300 LM/W=104 ART.NO.=81358
DTI type 2 Beta
Classroom Iighting Solution Obama Center
Reflected Ceiling Plan
---
---
Light Fixture
Library Obama Center Level 1 1 1/8" = 1'-0"
0
10
20
50
Floor Plan: Outlets and Swithces
---
MAIN HALL TO LIBRARY
---
CLASSROOM 101
CLASSROOM
CLASSROOM
102
103
Light Fixture
Library Obama Center Level 1 2 1/8" = 1'-0"
0
10
20
50
Section Classrooms
A1
A1
A1
4.2 4
A1
A1
7' - 9" 1' - 4"4' - 0" 16' - 0"
A1
6 5.8
4' - 0"1' - 4"
A1
9.2 9
2' - 4"
12
10' - 8"
1413.8
BEARING 112' - 0"
FIRST FLOOR 100' - 0"
Section Classrooms 1/8" = 1'-0"
Mineral Fiber
H
G
4' - 0"
You’ll find acoustic tile ceilings in homes, businesses and schools. They are an affordable choice when it comes to lowering the height of a modern room, but there are additional benefits. Acoustic ceilings also dampen ambient noise. Additional benefits are their ability to hide heating and cooling ducts or unsightly wires and pipes. Most ceiling tiles are made from mineral fiber, to aid in noise reduction. These tiles are good at absorbing sound within a space and help prevent loud environments and echoes. These work great in rooms with hard surface flooring, where the sound bounces from wall to wall and floor to ceiling. There are other materials available in ceiling tiles, however, including fiberglass. Acoustic ceilings are beneficial because they are highly light reflective. They allow more light to reflect back into the room, saving money in utility costs. Acoustic ceiling tiles are also flexible. You can install them in most rooms and they are easily cleaned. Mineral fiber panels suspended in a metalgrid are the most popular acoustical ceilingsystems used in educational environments today and will beused in DRAPE POCKET these classrooms for the Obama Center
A1
A1
16' - 0"
ACOUSTICAL CEILING
FIRST FLOOR 100' - 0"
Classroom section 1/4" = 1'-0"
10' - 8"
DTI type 2 BETA
WHITE BOARD
BEARING 112' - 0"
1' - 4"
BEARING 112' - 0"
FIRST FLOOR 100' - 0"
Passive Solar Design
A1
FAGERHULT DTI TYP 2 CONTINOUS
FLUORESENT
209
35W
double louvre enamelled sheet steel with white wire suspension cells finish
Continuous installation