This document provides lighting analyses for two spaces in a proposed community library project: 1) The expandable event space on the second floor receives abundant natural daylight from openings on all sides. Daylight factor calculations show it receives 700 lux of illumination. Artificial recessed lights are added to further illuminate the space. 2) The west-facing cafeteria relies on artificial lighting. Calculations determine 11 LED pendant lights spaced 2.4m apart would provide the required 200 lux of illumination. Pendant lights are placed along walls and across the coffee bar.

1. BUILDING SCIENCE II (BLD61303)
BACHELOR OF SCIENCE (HONORS) IN ARCHITECTURE
SCHOOL OF ARCHITECTURE, BUILDING & DESIGN
PROJECT II:
INTEGRATION PROJECT (WITH STUDIO V)
COMMUNITY LIBRARY

2. ONG EUXUAN 0319050
TUTOR: MR. AZIM SULAIMAN
TABLE OF CONTENT
1.0 INTRODUCTION
1.1 Site Introduction & Analysis
1.2 Floor Plans
2.0 LIGHTING ANALYSIS
2.1 Daylight Factor Analysis
PSALI
2.2 Artificial Lighting Analysis

3. 3.0 REFERENCES

4. 1.0 INTRODUCTION
1.1 Site Introduction
The proposed community library is located in Jalan Tuanku Abdul Rahman, Kuala
Lumpur. The selected site is east facing, allowing abundant of daylight to enter
through the front of the building. It aids us to limit the amount of artificial lighting and
fully utilize the strategic given location for the library by maximizing the use of natural
illumination.
Morning: Sun direction at 8 am

5. Noon: Sun direction at 12 pm
Evening: Sun direction at 6 pm
1.3 Floor Plans

9. 2.0 LIGHTING ANALYSIS
2.1 Daylight Factor Analysis
Space A: Expandable Event Space
The selected space is the expandable event space on the second floor of the library.
Surrounded by openings all around, the event space is highly illuminated by natural
lighting.

10. Floor Area (m 2) 98.65
Area of facade exposed to light (m 2) Perimeter: 7.6m / Height: 4m
Total Area: 30.4
Area of skylight (m 2) 4
Exposed area to floor area ratio
(Daylight factor)
(30.4+4) / 98.65
= 0.35 (35%)
= 3.5
Daylight factor, DF 3.5 = (Ei/20000) x 100%
Ei = 3.5 x 200
= 700 lux
Daylight Contour

11. During the day, natural daylight could enter the space from the skylight in the middle
of the building or the east-facing front facade. The main event space will be highly
illuminated, and the book collection area would generally be a little dimmer.
Section Analysis

12. The section shows the morning sunlight entering the space at 10am. Natural sunlight
penetrates through the facade and the skylight, enhancing the brightness of the space
naturally.
Space A: Expandable Event Space
PSALI
Artificial lighting are later added within the spaces to further enhance the illumination
in the event space area.
Recessed lights are used, lined along the side of the space, illuminating the general
shelved book collections and the reading zone in the library.

13. Section Analysis

14. The illumination of the event space with artificial recessed lights.
Reflected Ceiling Plan

15. 2.2 Artificial Lighting Analysis
Space B: Cafeteria
The selected space is the public cafeteria, located at the end of the ground floor by
the back entrance of the library. It faces west, thus artificial lighting is used to enhance
the illumination of the space.

16. Type of Fixture LED Pendant Light Fixtures
Material of Fixture Brushed nickel
Power (W) Available in 3000K
Color Temperature (K) 3500
Color Rendering Index < 80
Average Life Rate (Hours) 50,000 hours at 70% lumen output
Lumens Method Calculation

17. Location Cafeteria (Ground Floor)
Room Dimension (m) Length, L: 8.5 / Width, W: 7.2
Total Floor Area, A (m 2)
Ceiling Height (m) 4
Type of Fixture LED Pendant Light Fixture
Luminous Flux, F (lm) 4000
Height of Luminaires (m) 2.8
Height of Working Plane (m) 0.8
Mounting Height, H (Hm) 4.0 - 0.45 - 0.8
= 2.75
Standared Illumination Required
according to MSI525, E
Cafeteria: 200 lux
Reflectance Factor Ceiling: White Plastered Ceiling 0.7
Wall: Wall Painted Walls 0.5
Floor: Hardwood Floor 0.1
Room Index, RI (K)
0.2)2.75.8(
)2.75.8(
^)(
)(




mhWL
WL
= 1.95
Utilization Factor 0.6 (Based on utilization factor table)
Maintenance Factor (MF) 0.8 (Standard)
Number of Fittings required, N
8.06.04000
5.54400




MFUFF
AE
= 11.35
= 11 bulbs
Spacing to Height Ratio (SHR)
11
5.54
75.2
1
^
1


N
A
mH
SHR

18. = 0.80 m
0.8 =
75.2
S
S = 2.2
Fitting Layout Fitting required along 8.5m wall and 7.2
(curved) wall:
2.2
5.8
= 3.86
2.2
2.7
= 3.27
= 4 rows = 3 rows
Hence, 4 x 3 = 12 lamps
X- Spacing: 7.2/3 = 2.4 m
Y-Spacing: 8.5/4 = 2.125 m
Lighting Contour
Pendant lights are lined along the cafeteria space, and stretched across the coffee
bar to illuminate the entire space. Due to the placement of the elevator not being
taken into account, only 11 lamps are allocated.

19. Section Analysis
The section shows the placement of these LED pendant lights within the cafeteria
space.
Reflected Ceiling Plan

20. 3.0 REFERENCES