Building Science Project 2 Integration Report Calculation
- 1. BACHELOR OF SCIENCE (HONOURS) IN ARCHITECTURE BUILDING SCIENCE II (BLD 61303) Project 2: INTEGRATION ACOUSTICS AND LIGHTING Name: Calvin Suah Jake Ginn Student ID: 0313324 Tutor: Mr. Rizal
- 2. Table of Content 1.0 Lighting 1.1 Daylighting 1.2 Artificial Lighting 2.0 Space I : Knowledge Centre 2.1 Plan 2.2 Daylight Contour Diagram 2.3 Artificial Lighting 2.4 Light Specification 2.5 Lumen Method Calculation 2.6 Proposed Layout of Lighting Fixtures 2.7 Artificial Lighting Interiors (PSALI) 2.8 Ceiling Plan and Section during Day and Night 2.9 Artificial Lighting Contour 3.0 Space II : Youth Workshop Room 3.1 Plan 3.2 Daylight Contour Diagram 3.3 Artificial Lighting 3.4 Light Specification 3.5 Lumen Method Calculation 3.6 Proposed Layout of Lighting Fixtures 3.7 Artificial Lighting Interiors (PSALI) 3.8 Ceiling Plan and Section during Day and Night 3.9 Artificial Lighting Contour
- 3. 1.0 Lighting 1.1 Daylighting Natural daylighting is a passive method of lighting up a space. It is the controlled admission of natural sunlight and diffuse skylight into a building to reduce electric lighting and saving energy. By providing a direct link to the dynamic and perpetually evolving patterns of outdoor illumination, daylighting helps create a visually stimulating and productive environment for building occupants, while reducing as much as one- third of total building energy cost. Daylight Factor The daylight factor (DF) is commonly used to determine the ratio of internal light level to external light level and is defined as follows: where, DF = Daylight factor EO = Simultaneous outdoor illuminance on a horizontal plane from an unobstructed hemisphere of overcast sky EI = Illuminance due to daylight at appoint on the indoors working plane 1.2 Artificial Lighting Artificial lighting by definition is any light that does not come from sunlight. Artificial lighting are technical instruments that produces light through the conversion of electrical energy into radiation and light. Artificial lighting have two types of light source which is incandescent lamp whereby light is generated when the filament is radiated at high temperature and luminescent lamp when light is produced through excited electrons. We do not receive sunlight 24hours and therefore it is important to have artificial lighting as a substitute.
- 4. 2.0 Space 1 Knowledge Centre The Knowledge Centre is an IT room where all the computers are at for local communities to carry out their computer classes. Controlled lighting in this space is important to ensure that there is not too much sunlight that will cause glare but sufficient enough for users to do their work. The artificial lighting needed to light up the library is 300 lux with the maximum lighting power of 18(W/m2) based on the MS 1525, 2007 standards. 2.1 Plan
- 5. The daylight factor that is aimed to be achieved for this space is 4% based on Table 1.1 Distribution of Daylight Factor diagram. DF = 4% EO = 14000 lux EI = EI x 100 EO EI = 4 x 14000 100 Therefore, EI = 560 lux 2.2 Daylight Contour Diagram The computer room does not get a lot of daylighting to reduce the glare that the sunlight causes in the morning because the room is facing the West side where there is not much sunlight in the morning. The room gets an average of 300 lux of daylighting. Where there is an opening, the room receives more light. Hence, this room depends more on artificial lighting especially in the morning.
- 6. 2.3 Artificial Lighting The artificial lighting needed to light up the computer room is 300 lux with the maximum lighting power of 18(W/m2) based on the MS 1525, 2007 standards. 2.4 Light Specifications Table 1.2: Tubular Florescent Light Tube Description
- 7. 2.5 Lumen Method Calculation 2.6 Proposed Layout of Lighting Fixtures 10 lamps with the amount of 2100 lumens such as Tubular Fluorescent Light Tube is needed to light the space up with artificial lighting. Maximum spacing of each bulb = 1.5m x 2.15m = 3.225m 10 lamps = 2 rows of 5 lamps Length of room = 5.2m Width of room = 6.1m Spacing between each bulb (L) = 5.2m / 5 = 1.04m Spacing between each builb (W) = 6.1m / 2 = 3.05m Table 1.3: Lumen Method Calculation
- 8. 2.7 Artificial Lighting Interiors (PSALI) Since both side of the room can depend on natural daylight, the lights indicated in yellow are mounted together. However, the light in the middle of the room indicated in orange is proposed to be independent from the rest of the switch because the middle area of the room do not receive as much sunlight. Therefore, when it is less sunny, the lights indicated in orange can be switched on. 2.8 Ceiling Plan
- 9. 2.9 Artificial Lighting Contour
- 10. 3.0 Space 2 Youth Workshop Area The daylighting of the youth workshop area on the ground floor is selected to be studied for daylighting. This room do not receive ample amount of daylight as it is placed at the corner of the library. However, if the daylight is sufficient enough to light up this area, less artificial light is needed and therefore less energy is needed. 3.1 Plan
- 11. 3.2 Daylighting The daylight factor that is aimed to be achieved for this space is 5% based on Table 1.1 Distribution of Daylight Factor diagram. DF = 5% EO = 14000 lux EI = EI x 100 EO EI = 5 x 14000 100 Therefore, EI = 700 lux 3.3 Light Contour Diagram The youth workshop area get some daylighting in the morning as the window faces the exterior of the building where it captures natural light. The room needs an average of 700 lux because it is much larger compared to the computer room, therefore artificial lighting can be installed to brighten up the place during the evening.
- 12. 3.4 Light Specifications 3.5 Lumen Method Calculation Table 1.4: Round Pendant Light Description
- 13. 3.6 Proposed Layout of Lighting Fixtures 16 lamps with the maount of 1760 lumens such as Philips Round Pendant Light is needed to light the space up with artificial lighting. Maximum spacing of each bulb = 1.5m x 2.15 = 3.225m = 4 rows of 4 lamps Length of room = 8.0m Width of room = 5.0m Spacing between each bulb (L) = 8.0 / 4 = 2.0m Spacing between each bulb (W) = 5.0 / 4 = 1.25m Table 1.5: Lumen Method Calculation
- 14. 3.7 Artificial Lighting Interiors (PSALI) Since the side of the room receives more daylighting, the switches are independent of the lights at the back row that has higher exposure to natural daylight. On a less sunny, or gloomy day, the front of the room might not receive as much sunlight therefore, the lights at the front of the room can be turn on without having to switch on the row of lights nearest to the opening which allows natural daylighting in. 3.8 Ceiling Plan
- 15. 3.9 Artificial Lighting Contour