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# CALCULATIONS - Integration with Studio 5

Lighting and Acoustics Calculations for Spaces in Design Studio 5 Market Design
Published on: Mar 3, 2016
Published in: Education

#### Transcripts - CALCULATIONS - Integration with Studio 5

• 1. Project 2 : Lighting and Acoustics Integration with Design Studio 5 Tutor : Mr. Sanjey Raman Nadia Othman 0303423 1
• 2. 2 1.0 Lighting 1.1 Daylighting _____________________________________________________________________ 3 I) Market II) Reading Area III) Spa 1.2 Artificial lighting _________________________________________________________________4 I) Market II) Reading Area III) Spa 2.0 Acoustic 2.1 Reverberation time ______________________________________________________________10 I) Market II) Reading Area III) Spa 2.2 External noise sound pressure level _________________________________________________13 2.3 Sound transmission class _________________________________________________________14 I) Market II) Reading Area
• 3. 3 1.1 Daylighting DF = Ei Eo X 100% I) Market DF = 800/32000 X 100% = 2.5% This space has a fair daylight factor, the usage of artificial light would be sufficient to the space. II) Reading DF = 700/32000 X 100% = 2.19% This space has a fair daylight factor, the usage of artificial light would be sufficient to the space. III) Spa DF = 600/32000 X 100% = 1.88% This space has a fair daylight factor, the usage of artificial light would be sufficient to the space.
• 4. 4 1.2 Artificial Lighting I) Market Referring to MS 1525, the lighting level required for a market is 500lux. Location Ground floor Room Name Market Room Dimension L=3.0 m , W=3.0m Total Floor Area (m²) 9.0 Standard Illuminance required (lux) 500 Assumption of Reflectance value Mounting Height (hm) 4.5 – 1.0 = 3.5m Room Index (K) (3 x 3) / (3 + 3) x (4.5-1.0) = 0.43 Utilization Factor (UF) 0.43 Maintenance Factor (MF) 0.31 N = E  A   F UF MF = (500 x 9) / (3500x 0.43 x 0.31) = 9.6 ≈ 10 Type of Lighting Quantity Luminous Flux (lm) LUMILUX XT T8 Wattage : 58W Color temperature : 3000K 10 3500
• 5. 5 II) Reading Area Referring to MS 1525, the lighting level required for a reading area is 300. Location First Floor Room Name Reading Area Room Dimension L=6.5m , W=7.5m Total Floor Area (m²) 48.75 Standard Illuminance required (lux) 300 Assumption of Reflectance value Mounting Height (hm) 3.5 – 0.8 = 2.7m Room Index (K) (6.5 x 7.5) / (6.5 + 7.5) x 2.7 = 1.29 Utilization Factor (UF) 0.46 Maintenance Factor (MF) 0.35 N = E  A   F UF MF = (300 x 48.75) / (3500x 0.46 x 0.35) = 25.9 ≈ 26 Type of Lighting Quantity Luminous Flux (lm) Luminous flux : 11000 lm Color temp: 3000 K Lifespan: 300 h 26 3500
• 6. 6 III) Spa Referring to MS 1525, the lighting level required for a spa/bedroom is 150 Location Second Floor Room Name Spa Room Dimension L=5.6m , W=3m Total Floor Area (m²) 16.8 Standard Illuminance required (lux) 150 Assumption of Reflectance value Mounting Height (hm) 3.5- 1.0 = 2.5 m Room Index (K) (5.6 x 3)/ (5.6 + 3) x (3.5-1.0) = 0.8 Utilization Factor (UF) 0.40 Maintenance Factor (MF) 0.35 N = E  A   F UF MF = (150 x 16.8) / (1100 x 0.4 x 0.35) = 16.3 ≈ 18 Type of Lighting Quantity Luminous Flux (lm) OSRAM DULUX INTELLIGENT DIM CFL Luminous flux: 1100 lm Color temp: 2500 K Lifespan: 20000 h 18 1100
• 7. 7 Acoustics Market Component Material Function Area(m²) Absorption Coefficient (2000Hz) Sound Absorption (SA) CEILING Glass Ceiling 255 0.05 12.75 WALL Brick Glass Glass Wall Window Door 127.2 76.8 38.7 0.04 0.07 0.03 5.088 5.376 1.161 FLOOR Concrete Floor 255 0.06 15.3 FURNITURE Wood Chairs Tables 16 16 0.28 0.06 4.48 2.76 Total Absorption 46.92 RT = V  16. 0 A RT = 0.16 x 2805 / 46.92 RT = 9.6s
• 8. 8 Reading Room Component Material Function Area(m²) Absorption Coefficient (2000Hz) Sound Absorption (SA) CEILING Concrete Ceiling 48.75 0.06 2.93 WALL Concrete Glass Wall Window 76.9 16.2 0.06 0.07 4.6 1.1 FLOOR Carpet Floor 48.75 0.60 29.25 FURNITURE PEOPLE Fabric Chair Chairs Tables 10 2 10 0.96 0.06 0.46 9.6 0.12 4.6 Total Absorption 52.2 RT = V  16. 0 A RT = 0.16x 170.63 / 52.2 RT = 0.52s
• 9. 9 Spa Component Material Function Area(m²) Absorption Coefficient (2000Hz) Sound Absorption (SA) CEILING Concrete Ceiling 16.8 0.06 1.008 WALL Concrete Glass wood Wall Window Door 7.5 3 3 0.06 0.07 0.03 0.45 0.21 0.09 FLOOR Carpet Floor 16.8 0.60 10.08 FURNITURE PEOPLE Fabric Wood Chairs Tables 2 1 2 0.96 0.06 0.46 1.92 0.06 0.92 Total Absorption 14.74 RT = V  16. 0 A RT = 0.16 x 58.8 / 14.74 RT = 0.64s
• 10. 10 External noise Sound pressure level Traffic noise: 83dB Activity noise: 60dB Traffic 83 = 10 log (I₁/I₀) log¯ⁱ 8.3 = I₁/I₀ log¯ⁱ 8.3 = I₁/(1.0 x 10¯ⁱ²) I₁ = 1.995 x 10¯⁴ Activity 65 = 10 log (I₁/I₀) log¯ⁱ 6.5 = I₁/I₀ log¯ⁱ 6.5 = I₁/(1.0 x 10¯ⁱ²) I₁ = 3.16 x 10¯⁶ Combine intensity (1.995 x 10¯⁴) + (3.16 x 10¯⁶) = 2.03 x 10¯⁴ Combined SPL 10 log (I₁/I₀) = 10 log (2.03 x 10¯⁴/1 x 10¯ⁱ²) = 10 log 2.03 x 10⁸ =83dB
• 11. 11 Sound Transmission Class Reading Room TL for brick wall TL for glass window 42 = 10log 1 T 37 = 10log 1 T log¯ⁱ4.2 = 1 T log¯ⁱ3.7 = 1 T T = 1/ (1.585 x 10⁴) T = 1/ (5.01 x 10³) = 6.309 x 10¯⁵ T = 1.995 x 10¯⁴ Average Transmission Coefficient of Materials Toverall = (7.164 x 10¯4) + (1.407 x 10¯3)/25.9 = 8.19x 10¯⁵ Total SRI of Wall SRI = 10log 1/8.19 x 10¯⁵ = 10log (12210) = 40.87 83 – 40.87 = 42.13dB
• 12. 12 Market TL for brick wall TL for glass window 42 = 10log 1 T 37 = 10log 1 T log¯ⁱ4.2 = 1 T log¯ⁱ3.7 = 1 T T = 1/ (1.585 x 10⁴) T = 1/ (5.01 x 10³) = 6.309 x 10¯⁵ T = 1.995 x 10¯⁴ Average Transmission Coefficient of Materials Toverall = (2.47 x 10¯2) /187 = 1.32 x 10¯4 Total SRI of Wall SRI = 10log 1/1.32 x 10¯4 = 10log (7575) = 38.79 83 – 38.79 = 44.21dB
• 13. 13 References 1. LED light colour, CRI and experiments. (n.d.). LED light colour, CRI and experiments. Retrieved December 4, 2014, from http://swhs.home.xs4all.nl/fiets/tests/verlichting/experimenten/index_en.html#cri 2. Sanjeh R. (2014). Lumen Method, Lecture Notes. Taylor’s University. 3. Sivaraman K. (2014). Acoustic Calculations, Lecture Notes. Taylor’s University. 4. Binggeli, C. (2003). Building System for Interior Designers. New Jersey: John Wiley & Sons.