School of Architecture, Building and DesignBachelor of Science (Hons) in Architecture

[ARC 3413] Building Science 2

Project 2:Lighting and Acoustics Integration with Design Studio 5

Name : Bernard Ling Ching Chiong

Student I.D. : 0301892

Tutor : Dr. Mina Kaboudarahangi

TABLE OF CONTENTS PAGE

1.0 LIGHTING PROPOSAL

1.1 Daylighting ------------------------------------------------------------------------------------- 1Indoor dining areaFood courtStreet view dining area

1.2 Artificial lighting ------------------------------------------------------------------------------ 2Indoor dining areaFood courtStreet view dining area

2.0 ACOUSTICS PROPOSAL

2.1 Reverberation Time --------------------------------------------------------------------------- 3Indoor dining area

2.2 External Noise Sound Pressure Level ------------------------------------------------------ 4

2.3 Sound Transmission Class ------------------------------------------------------------------- 4Street view dining area

2.4 Combined SPL of internal noises ----------------------------------------------------------- 5

3.0 References ----------------------------------------------------------------------- 5

1.2. Artificial lighting

Food market 1

Total Floor Area (m²) 98.34m²Standard Illuminance Required (lux) 300Assumption of Reflection White plaster ceiling, exposed concrete wall

= 0.7 , 0.5Room Index (K) RI= LxW

(L+W ) x H

RI= 6.6 x 14.9(6.6+14.9 ) x1.6

= 3.23

Utilization Factor UF= 79100

UF=0.79

Maintenance Factor 0.8

3100 lm (Cool daylight) 1300lm (Warm white)Brand: Master TL5 High Efficiency Fluorescent Lamp

Brand: Philips LED Bulb 10-60W E27 6500K

N = E x A F x UF x MF

N = 200 x 98.34 3100 x 0.79 x 0.8

N= 10

N = E x A F x UF x MF

N = 100 x 98.34 1300 x 0.79 x 0.8

N= 11.9 = 12

Conclusion:10 units of 3100lm incandescent pendant light fixture and 12 units of 1300lm wall mounted incandescent light fixture can give a total illuminance of 300 lux to the dining area, which fulfils the requirement of MS1525.

Food market 2

Total Floor Area (m²) 189.23m²Standard Illuminance Required (lux) 300Assumption of Reflection White plaster ceiling, exposed concrete wall

= 0.7 , 0.5Room Index (K) RI= LxW

(L+W ) x H

RI= 12.7 x14.9(12.7+14.9 ) x 2.5

= 3.6 = 4

Utilization Factor UF= 83100

UF=0.83

Maintenance Factor 0.8

3100 lm (Cool daylight) 1300lm (Warm white) Brand: Master TL5 High Efficiency Fluorescent Lamp

Brand: Philips LED Bulb 10-60W E27 6500K

N = E x A F x UF x MF

N = 200 x 189.23 3100 x 0.83 x 0.8

N= 18.4 =19

N = E x A F x UF x MF

N = 100 x 189.23 1300 x 0.83 x 0.8

N= 21.9 = 22

Conclusion:19 units of 3100lm incandescent pendant light fixture and 22 units of 1300lm wall mounted incandescent light fixture can give a total illuminance of 300 lux to the dining area, which fulfils the requirement of MS1525.

Supermarket

Total Floor Area (m²) 66.88²Standard Illuminance Required (lux) 200Assumption of Reflection White plaster ceiling, exposed concrete wall

= 0.7 , 0.5Room Index (K) RI= LxW

(L+W ) x H

RI= 8.4 x 8.2(8.4+8.2 ) x1.6

= 6

Utilization Factor UF= 70100

UF=0.7

Maintenance Factor 0.8

3100 lm (Cool daylight) 1300lm (Warm white) Brand: Master TL5 High Efficiency Fluorescent Lamp

Brand: Philips LED Bulb 10-60W E27 6500K

N = E x A F x UF x MF

N = 100 x 66.88 3100 x 0.7 x 0.8

N= 3.85 = 4

N = E x A F x UF x MF

N = 100 x 66.88 1300 x 0.7 x 0.8

N= 9.2 = 10

Conclusion:19 units of 3100lm incandescent pendant light fixture and 22 units of 1300lm wall mounted incandescent light fixture can give a total illuminance of 300 lux to the dining area, which fulfils the requirement of MS1525.

2.1 Reverberation Time

Zone: Retail storeMaterial Surface Area (m²) Absorption coefficient at

1000 HzSA

Ceiling plasterboard 10mm thick backed with 25mm thick bitumen

54.4 0.05 2.75

Brick wall 104 0.04 4.16

Timber finish on concrete floor 54.4 0.06 3.26

4mm glass wall 20.97 0.03 0.63

glass sliding door 3.78 0.03 0.023

2 x leather covered seats 24 0.61 14.64

3 x timber table 6 0.10 0.6

20 x adults 24 0.46 11.04

Total absorption 37.1

RT=0.16VSA

¿0.16(244.8)

37.1= 1.05

Conclusion:The reverberation time for the indoor dining area is 1.05s, which is almost 1s. the reverberation time for a small room is 1s standard. This proves that this area has good reverberation time.

2.2 External Noise Sound Pressure Level

Traffic noise at Jalan Tun HS Lee, 83db Activity noise at Jalan Tun HS Lee, 80db

83=10 log l 1

1x10−12

Antilog8.3= l 1

1 x10−12

l 1=(1.995 x108 )x (1 x10−12)

¿1.995 x10−4

80=10 log l 1

1x10−12

Antilog8= l 1

1 x10−12

l 1=(1 x108 ) x (1 x10−12)¿1 x10−4

Total intensities ¿ (1.995 x10−4 )+(1 x10−4 ) ¿2.995 x10−4

Combined SPL =

10 log2.995x 10−4

1x10−12

= 10 x 8.476

= 84.76dB

Conclusion:

The combined SPL of the external noises of Jalan Tun HS Lee is 84.76dB

2.3 Sound Transmission Class

Figure above shows the sound pressure levels of common sound sources.

Zone : RestaurantAccording to the standards table, average sound pressure level produced by restaurant (cafeteria) is 80dB .

The restaurant consist of 116.4m² of concrete bricks wall (42dB)

TL for concrete brick wall

42=10 log1T

Antilog 4.2= 1T

T= 1

1.585x 104

Tconcretewall¿6.309 x10−5

Toverall ¿(116.4 x 6.309 x10−5 )

116.4

¿6.309 x10−5

SRI overall ¿10 log 101

6.309 x10−5

= 42dB

84.76dB – 42dB = 42.76dB

Conclusion:Usage of materials has reduced 42dB of restaurant’s maximum estimated noise.

2.4 Power Addition Method – Combined SPL of Internal Noises

Noise at street view dining area, 42.76dB Human conversation, 50db

42.76=10 log l1

1 x10−12

Antilog4.28= l1

1 x10−12

l 1=(1.9 x104 ) x(1x 10−12)

¿1.9 x10−8

50=10 log l 1

1 x10−12

Antilog5= l 1

1x 10−12

l 1=(1 x105 ) x (1x 10−12)¿1 x10−7

Total intensities ¿ (1.9 x10−8 )+(1 x10−7 ) ¿1.2 x10−7

Combined SPL =

10 log1.2 x10−7

1 x10−12

= 10 x 5.076

= 50.76dB

Conclusion:The total noise in the restaurant is 50.76dB.

Types of lights Rationale Lumen

Philips LED Bulb 10-60W E27 6500K

Used as pendant light for warm comfort light 1300

Master TL5 High Efficiency Fluorescent

Lamp

Used as primary light 3100