This document summarizes the lighting integration strategies for two spaces - a kitchen workshop and an adaptable workshop - in an interlocking community building. For the kitchen workshop, daylighting strategies like sliding glass doors and roller shutters are proposed to reduce excess daylight entering the space. For the adaptable workshop, the lumen method is used to calculate the number and layout of fluorescent tube lights needed to achieve the required illuminance level of 300 lux. A similar calculation is done for the kitchen workshop to design its lighting layout.

1. BUILDING SCIENCE
BLD 61303
Project 02: Lighting Integration Project
Zoe Low Li Mien
0319444
Tutor: Mr Azim

2. CONTENTS:
1. INTRODUCTION 2
2. FLOOR PLANS 3
3. DAYLIGHTING STRATEGIES 4
4. THE LUMEN METHOD 7
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3. 1. INTRODUCTION
SITE PLAN
This project is about a community where it consist of an interlocking design.
Combining both the interior and exterior spaces together, with a central garden
courtyard open to all floors and a sky garden above.
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4. 2. FLOOR PLANS
GRD FLOOR LEVEL
The Chosen Space: The Kitchen Workshop
1ST FLOOR LEVEL
The Chosen Space: The Adaptable Workshop
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5. 3. DAYLIGHTING STRATEGIES
DAYLIGHTING STRATEGIES FOR THE KITCHEN WORKSHOP
Area of Window (W, m​2​
) (2.41m x 3.45m) x 5 Windows
= 41.57
Total Area of Internal surfaces (A, m​2​
) Walls
= (9.73 x 3.45) + (4.04 x 3.45) + (1.035 x 3.45) +
(5.738 x 3.45) + (17.4 x 3.45) + (13.915 x 3.45)
= 33.56 + 13.93 + 3.57 + 19.7 + 60.03 + 48.006
= 178.91
Ceiling and Floor
= (17.4 x 9.73) - (1.035 x 4.04)
= 169.302 - 4.18
= 165.12
= (165.12 x 2)
= 330.241
178.91 + 330.241
= 509.15
Glass Transmittance Corrected For Dirt (T) 0.6 (For double glazed window in clean
environment)
Visible Sky Angle In Degree From Centre of
Window (θ)
135°
Average Reflectance Of Area A (R) 0.5 (Considering light coloured room surfaces)
Average Daylight Factor (DF) (41.57/509.15) x (0.6 x 135°/0.5)
= 0.081 x 162
= 13.22
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6. The daylight factor is 13, which is higher than the required standard Daylight Factor
of 6 based on MS1525. With too much excess daylight, this causes a lot of thermal
discomfort and unwanted glare into the space.
Therefore sliding glass doors (left) and roller shutters (right) are introduced to reduce
the amount of daylight penetrating into the space as seen from the image above.
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7. DAYLIGHTING STRATEGIES FOR THE ADAPTABLE WORKSHOP
Area of Window (W, m​2​
) (0.8m x 3.45m) x 8 Windows
= 22.08
(1.15m x 3.45m) x 3 Windows
= 11.9
22.08 + 11.9
= 33.98
Total Area of Internal surfaces (A, m​2​
) Walls
= (15.6 x 3.45) + (9.9 x 3.45) + (10.94 x 3.45) +
(4.83 x 3.45)
= 53.82 + 34.155 + 37.743 + 16.66
= 142.38
Ceiling and Floor
= (15.6 x 9.9) x 2
= 308.88
142.38 + 308.88
= 451.26
Glass Transmittance Corrected For Dirt (T) 0.6 (For double glazed window in clean
environment)
Visible Sky Angle In Degree From Centre of
Window (θ)
135°
Average Reflectance Of Area A (R) 0.5 (Considering light coloured room surfaces)
Average Daylight Factor (DF) (33.98/451.26) x (0.6 x 135°/0.5)
= 0.075 x 162
= 12.1
The daylight factor of this space is 12.1, which is higher than the required standard
Daylight Factor of 6 based on MS1525. This considers the fact that the space
appears to be very bright, making a lot of unwanted glare.
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8. 4. THE LUMEN METHOD
ROOM INDEX FOR THE KITCHEN WORKSHOP
Dimensions of Kitchen Workshop (m) Length = 17.4
Width = 9.73
Total Floor Area (m​2​
) (17.4 x 9.73) - (1.035 x 4.04)
= 169.302 - 4.181
= 165.12
Room Height (m) 3.45m
Mounting Height (m) 3.45 - 0.77 (height from desk) - 0.08 (height of the
light fitting)
= 2.6
Room Index (K) 165.12 / 2.6 (17.4 + 9.73)
165.12 / (2.6 x 27.13)
165.12 / 70.538
= 2.34
LUMEN METHOD OF THE KITCHEN WORKSHOP
Light Fitting Mirror Louver Fitting Type S
Type of Light Fitting Fluorescent Tube
Dimensions of the Light Fitting (m) 1.223m x 0.605m
Illuminance Level required (E, lux) 150 - 300 lux
Area of working plane height (A, m​2​
) (17.4 x 9.73) - (1.035 x 4.04)
= 169.302 - 4.181
= 165.12m​2
Average Luminous flux from each lamp (F, lm) 2100
Utilisation Factor (UF) C = 0.7
W = 0.5
F = 0.2
UF = 0.6
Maintanence Factor (MF) 0.8 (Standard)
Number of Lamps required (N) (300 lux x 165.12m​2​
) / (2100 x 0.6 x 0.8)
= 49536 / 1008
= 49.14
49 Lamps
Distance between the lamps (m) 1.5 x 2.6m (Mounting Height)
= 3.9m
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9. The lighting layout of the kitchen workshop
ROOM INDEX FOR THE ADAPTABLE WORKSHOP
Dimensions of the Adaptable Workshop (m) Length = 15.6
Width = 9.9
Total Floor Area (m​2​
) 15.6 x 9.9
= 154.44
Room Height (m) 2.85m
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10. Mounting Height (m) 2.85 - 0.77 (height from desk) - 0.0033 (height of
the light fitting)
= 2.076
Room Index (K) 154.44 / 2.076 (15.6 + 9.9)
154.44 / (2.076 x 25.5)
154.44 / 52.95
= 2.91
LUMEN METHOD OF THE ADAPTABLE WORKSHOP
Light Fitting Mirror Louver Fitting Type R
Type of Light Fitting Fluorescent Tube
Dimensions of the Light Fitting (m) 1.223m x 1.210m
Illuminance Level required (E, lux) 300 lux
Area of working plane height (A, m​2​
) 15.6 (Length) x 9.9 (Width)
154.44m​2
Average Luminous flux from each lamp (F, lm) 2100
Utilisation Factor (UF) C = 0.7
W = 0.5
F = 0.2
UF = 0.63
Maintanence Factor (MF) 0.8 (Standard)
Number of Lamps required (N) (300 lux x 154.44m​2​
) / (2100 x 0.63 x 0.8)
= 46332 / 1058.4
= 43.7
43 Lamps
Distance between the lamps (m) 1.5 x 2.076m (Mounting Height)
= 3.114m
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11. The lighting layout of the adaptable workshop
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