Building Science II final report

1. 1
BACHELOR OF SCIENCE (HONOURS) IN ARCHITECTURE
BUILDING SCIENCE II
BLD 61303/ ARC 3413
PROJECT 2 INTEGRATION LIGHTING
Name : Tan Wei Zhen
Student ID : 0318560
Tutor : Mr. AzimSulaiman

2. 2
Table of Content
1.0 Introduction 3
2.0 Lighting 4
3.1 Indoor Study/ Discussion Area
3.1.1 Floor Plan 5
3.1.2 Daylight Factor Calculation 6
3.1.3 Lumen Method Calculation 8
3.1.4 Section 9
3.1.5 Daylight Contour Diagram 9
3.1.6 PSALI Scheme 10
3.2 Computer Room
3.2.1 Floor Plan 11
3.2.2 Lumen Method Calculation 13
3.2.3 Section 14
3.2.4 Daylight Contour Diagram 14
3.2.5 PSALI Scheme 15

3. 3
1.0 Introduction
This Project aims to understand the integration of the light principles into the consideration of
designing a library which helps to achieve optimal visual comfort for the users. Students would
be able to design spaces incorporating artificial and day lighting thus producing a sustainable
design.
The picture above shows the site plan of Jalan Tuanku Abdul Rahman facing the east, in front of
the main road.

4. 4
2.0 Lighting
Daylight Factor
It is commonly used to determine the ratio of internal light level compared to external light
level and is defined as following equations:
%100
Eo
Ei
DF
DF = Daylight Factor
Ei = Illuminance due to daylight at point on indoor working plane
Eo = Simultaneous outdoor illuminance on a horizonal plane from an unobstruct hemisphere of
the overcast sky
)1( R
T
A
W
AverageDF



Average DF = Average Daylight Factor
W = Area of the windows
A = Total Area of Internal Surfaces
T = Glass Transmittance
θ = Visible Sky Angle
R = Average Reflectance

5. 5
3.1 Indoor Reading/Discussion Area
3.1.1 Floor Plan

6. 6
3.1.2 Daylight Factor Calculation
Floor Area 8m x 3m = 24m2
Area of Windows 1.5m x 2.5m = 3.75m2
Total Area of Internal Surfaces 2(8m x 3m) + 2(8m x 3.2m) + 2(3m x 3.2m)
= 118.4m2
Glass Transmittance 0.6
Visible Sky Angle in Degrees from Centre of
Window, θ
810
Average Reflectance, R 0.5
)1( R
T
A
W
AverageDF



)5.01(
)816.0(
4.118
75.3



= 3.07%
According to MS1525, this room is considered bright.

7. 7

8. 8
Type of Fixture LuxSpace 2 Mini, Recessed
Type of Model
Company Philips
Light Source Non-replaceable LED module
Lighting Function Task Lighting
Type of Luminaries White
Power, W 11.2W
Voltage, V 240V
Luminous Flux, LM 1200
Color Temperature, K 3000K
Color Rendering Index, CRI 90
Lumen Maintenance Factor, MF 0.8
Features 1. Creates gentle, natural light to ensure users
to achieve optimal visual comfort.
2. Easy installation to the ceiling.

9. 9

10. 10
3.1.3 Lumen Method Calculation
Location Study/Discussion Area
Dimension of Space, m Length : 8.0m
Width : 3.0m
Height of Ceiling : 3.5m
Total Floor Area, m2 8.0m x 3.0m = 24.0m
Standard Illuminance Required (Lux) according
to MS1525, E
300
Lumen of Light Fixture, LM 1200
Height of Luminaire, m 3.0
Working Level, m 0.8
Mounting Height (Hm), m 2.2
Assumption of Reflective Value Ceiling : 0.7
Wall : 0.5
Floor : 0.2
Room Index, K K = (L x W)/ [(L + W)Hm]
= (8 x 3)/ [(8 + 3)2.2]
= 4.8
Utilization factor (UF) 0.6
Maintenance Factor (MF) 0.7
Lumen Calculation
MFUFF
AE
N


 )7.06.01200(
)24300(


N
= 14.2 ≈ 14 bulbs
Number of Luminaires Required
Across
W
NL
Along
3
148
= 6.1 ≈ 7
Spacing: 8/7 = 1.14m

11. 11
L
NW 
8
143
= 2.29 ≈ 3
Spacing: 3/3 = 1.0m

12. 12
3.1.4 Section
3.1.5 Light Contour Diagrams

13. 13
3.1.6 PSALI Scheme

14. 14
3.2 Computer Room
3.2.1 Floor Plan

15. 15
Type of Fixture Smart Balance Recessed
Type of Model
RC480B (Module Size 600 x 600)
Company Philips
Light Source Non-replaceable LED module
Lighting Function Task Lighting
Type of Luminaries White
Power, W 32W
Voltage, V 240V
Luminous Flux, LM 3500
Color Temperature, K 3000K
Color Rendering Index, CRI >80
Lumen Maintenance Factor, MF 0.8
Features 1. Energy efficient.
2. Appealing, smooth surface-of-light solution.

16. 16
3.2.2 Lumen Method Calculation
Location Computer Room
Dimension of Space, m Length : 9.7m
Width : 4.6m
Height of Ceiling : 3.5m
Total Floor Area, m2 9.7m x 4.6m = 44.6m
Standard Illuminance Required (Lux) according
to MS1525, E
300
Lumen of Light Fixture, LM 3500
Height of Luminaire, m 3.0
Working Level, m 0.8
Mounting Height (Hm), m 2.2
Assumption of Reflective Value Ceiling : 0.7
Wall : 0.5
Floor : 0.2
Room Index, K K = (L x W)/ [(L + W)Hm]
= (9.7 x 4.6)/ [(9.7 + 4.6)2.2]
= 1.42
Utilization factor (UF) 0.43
Maintenance Factor (MF) 0.8
Lumen Calculation
MFUFF
AE
N


 )8.043.03500(
)6.44300(


N
= 11.11 ≈ 12 bulbs
Number of Luminaires Required
Across
W
NL
Along
6.4
127.9 
= 5
Spacing: 9.7/5 = 1.9m

17. 17
L
NW 
7.9
126.4 
= 2.39 ≈ 3
Spacing: 4.6/3 = 1.53m
3.2.3 Section
3.2.4 Light Contour Diagrams

18. 18

19. 19
3.2.5 PSALI Scheme