Building Science Project 2 Integration Report Calculation

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

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


2.4 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



3.4 Light Specification




3.8 Ceiling Plan and Section during Day and Night


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


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.

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

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


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.


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



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


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

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

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.

3.4 Light Specifications


Table 1.4: Round Pendant Light Description


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


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

Building Science Project 2 Integration Report Calculation

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