Daylighting, Artificial Lighting and PSALI Analysis | Building Science II

Page 1

In Jalan Stesen 1, Klang

TAN CHIN WERNG


CONTENT_

Introduction ..……….……………….………………………………….………...……………..………..06

Daylight Strategies ……………………………………………………………………………......……08

Artificial Lighting Strategies …………………………………………….………..……...…...14



Objective

● ● ●

Proposed Site/ Site B


Sun Path Study

9 AM

12 PM

● 6 PM The side facade receives western sun, while the front facade is still being shaded. Receding evening sun diffuses through the building from the side facade.


SECOND FLOOR PLAN


THIRD FLOOR PLAN



Daylight Factor


List of Formulas

Θ

Space A: Exhibition Space

Third Floor Plan


Elevation

East Elevation

North Elevation

South Elevation

West Elevation


Average Daylight Factor

L = 14.2 m W = 5.4 m H = 5.0 m (13.3x1.1)+(10.7x5)+(5.4x5) = 95.13 m

0.6 20 0.4 ⦰

Conclusion


List of Formulas

Θ

Space B: E-Learning Lab

Second Floor Plan


Average Daylight Factor

L: 9.2m W: 4.8m H: 3.5m A= (4.8x3.5)+(9.2x3.5)+[(9.2x3.5) -(2x0.9) = 79.4 m

0.6 (for double glazed window in clean environment) 13 0.4 (not all light is reflected to the space) ⌰

Conclusion



List of Formulas


Color Rendering Index


Space A: Exhibition Space 3.2.1 Lighting Fixture Properties

Recessed Downlight

LED Direct Distribution 35,000 8

2150 4000

Warm White CRI

92


Space A: Exhibition Space

3.2.2 Room Index Calculation

L = 14.2m W = 5.4 76.68 5 600 5 0.8 4.2 300 (Museum & Gallery) Room Index, RI (K)

LxW/ Hmx(L+W) = (14.2x5.4)/ 4.2(14.2+5.4) = 0.93


Space A: Exhibition Space 3.2.3 Lumen Method Calculation

C - White Plastered Ceiling = 0.7 W - Precast Concrete Wall Painted in White = 0.5 F - Timber Flooring = 0.3 0.5 0.8

= 300 x 76.68 (2150 x 0.5 x 0.8) = 26.75 = 27 lights


Space A: PSALI Methods 3.2.3 Light Fittings and Spacing Diagram

3.2.3 Light Contour Diagram


Space A: PSALI Methods

3.2.3 PSALI Integration

2

3

2

3

2

3

2

3

Night

2

3

2

3

2

3

Morning

2

3

1

1


Space B: E-Learning Lab 3.3.1 Lighting Fixture Properties

Pendant Task Lighting

LED Direct Distribution

35,000 20 1425

CRI

85


Space B: E-Learning Lab

3.3.2 Room Index Calculation

L = 9.2m W = 4.8m 44.16 3.5 1425 3.5-0.2 = 3.3 0.8 (Computer Table) 2.5 500 (Office with clerical task such as typing and using computer)

Room Index, RI (K)

LxW/ Hmx(L+W) = (9.2x4.8)/ 2.5(9.2+4.8) = 1.26


Space B: E-Learning Lab 3.3.3 Lumen Method Calculation

C - White Plastered Ceiling = 0.7 W - Precast Concrete Wall Painted in White = 0.5 F - Timber Flooring = 0.3 0.5 0.8

= 500 x 44.16 (1425 x 0.5 x 0.8) = 38.74 = 39 lights


Space B: PSALI Methods 3.4.1 Light Fittings and Spacing Diagram

3.4.2 Light Contour Diagram


Space B: PSALI Methods 3.2.3 PSALI Integration

2

2

2

2

2

2

1

Night

2

2

2

2

2

Morning

2

1


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