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7/31/2019 5.2. ES Vol 1B (Binder 3) - Appendix 12.1 Operational Noise Calculations and Results
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Appendix 12.1
Operational Noise Calculations and Results
7/31/2019 5.2. ES Vol 1B (Binder 3) - Appendix 12.1 Operational Noise Calculations and Results
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7/31/2019 5.2. ES Vol 1B (Binder 3) - Appendix 12.1 Operational Noise Calculations and Results
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Operational Noise Calculations and Results
Absorption Coefficient/SRI Data
AbsorptionCoefficient Data
Reference 63 125 250 500 1000 2000 4000 8000
Standard brickwork A 0.05 0.05 0.05 0.04 0.02 0.04 0.05 0.05
Solid timber door B 0.14 0.14 0.14 0.10 0.06 0.08 0.10 0.10
Ventilation grille perm2
C 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60
20g galvanised sheetsteel
A 0.35 0.35 0.39 0.44 0.49 0.54 0.57 0.57
Smooth unpaintedconcrete
B 0.01 0.01 0.01 0.02 0.02 0.02 0.05 0.05
SOUNDREDUCTION DATA
Reference 63 125 250 500 1000 2000 4000 8000
Single leaf block
work fair faced D 36 37 40 46 54 56 56 56Solid core wooddoor, no seals
around perimeterE 19 22 26 24 23 20 20 20
Ventilation grille 10 10 10 10 10 10 10 10
20g galvanised sheetsteel
F 8 14 20 26 32 38 38 38
REFERENCES
Danish Buildings Research Institute (derived from other sources - ODEON) C
Bobran, H.W., "Handbuch der Bauphysik" Verlag Ilstein Berlin 1973 (Odeon) B
Flakt Woods, Practical guide to noise control. 5th Edition A
Acoustics in the Built Environment, Duncan Templeton, Butterworth Architecture, 1993 D
NRCC, Noise Control in Buildings, Cyril M.Harris E
Building Bulletin 93 F
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Noise Breakout from Gas Compressor HousingRoom Constant Calculation
North Wall Elevation
Dimensions
Total Area
31 x 5.8 = 179.8m2
Assumptions
2 x Roller shutter doors 7.2 x 3.8 = 27.4m2 x 2 = 54.8m2
1 Access door 2.4 x 1.2 = 2.9m2
Total brick wall area 179.8 54.8 2.9 = 122.1m2
South Wall Elevation
Dimensions
Total Area
31 x 5.8 = 179.8m2
Assumptions
Wall is all brickwork with x2 ventilation grilles 1.5 x 9.5 = 14.25 x 2 = 28.5m2
East/West Wall Elevation
Total Area
11.8 x 5.8 = 68.4m2
(11.8 x 2.5)/2 = 14.8m2
Total area = 68.4 + 14.8 = 83.2m2
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Ceiling Area
Total Area
2.52 + 4.152 = 23.5 SQROOT 23.5 =4.84.8 x 31 = 148.8 x 2 = 297.6m2
Assumptions
No ceiling treatment applied
BRICKTIMBERDOOR
ROLLERSHUTTER
DOOR
CONCRETEFLOOR
CEILING LOUVRES
NORTH 122.1 2.9 54.8 0 297.6 0SOUTH 151.3 0 0 0 0 28.5EAST 83.2 0 0 0 0 0WEST 83.2 0 0 0 0 0FLOOR 0 0 0 365.8 0 0CEILING 0 0 0 0 0 0TOTAL 468.3 2.9 54.8 365.8 297.6 28.5
TOTAL SURFACE AREA 1217.9
OCTAVE BAND CENTRE FREQUENCY63 125 250 500 1000 2000 4000 8000
WALLS 23.4 23.4 23.4 18.7 9.4 18.7 23.4 23.4CEILING 3.0 3.0 3.0 6.0 6.0 6.0 8.9 8.9
TIMBER DOOR 0.4 0.4 0.4 0.3 0.2 0.2 0.3 0.3FLOOR 3.7 3.7 3.7 7.3 7.3 7.3 18.3 18.3VENTS 17.1 17.1 17.1 17.1 17.1 17.1 17.1 17.1
ROLLER DOOR 0.5 0.5 0.5 1.1 1.1 1.1 1.6 1.60.0 0.0 0.0 0.0 0.0 0.0 0.0 0.00.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
TOTAL48 1 48 1 48 1 50 5 41 0 50 4 69 7 69 7
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Reverberant Sound Pressure Level Inside Building
Assumed Contents of Compressor Building 2 x Mopico compressors@ 107.2Lw and 6 x control valves @ 75 Lw
Total internal sound power level
107.2 +107.2 = 110.2dB
75+75+75+75+75+75 = 82.8dB
110.2 + 82.8 = 110.2dB (control valves are negligible)
63 125 250 500 1000 2000 4000 8000Total Internal SoundPower Level 110.2 110.2 110.2 110.2 110.2 110.2 110.2 110.2ROOM CONSTANT 50.1 50.1 50.1 52.7 42.4 52.6 73.9 73.9
1 4/Rc 0.08 0.08 0.08 0.08 0.09 0.08 0.05 0.05
2Q {DIRECTIVITYFACTOR} 2 2 2 2 2 2 2 2
3 Q/{4X3.142X.r SQ} 0.04 0.04 0.04 0.04 0.04 0.04 0.04 0.044 3 + 1 0.12 0.12 0.12 0.12 0.13 0.12 0.09 0.095 10 X LOG [4] -9.2 -9.2 -9.2 -9.4 -8.7 -9.4 -10.3 -10.36 SWL + [5] 101.0 101.0 101.0 100.8 101.5 100.8 99.9 99.9
Total Internal Reverberant Sound Pressure Level @ 500Hz 100.8 dB
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NORTHERN WALL 500HzSingle leaf brick 46
Timber Door 24
Vent 1020g galvanised sheet
steel 26
total Area 179.8
Wall 122.1Door 2.9Vent 0
Roller Shutter Door 54.8000
T=10^(-C5/10) 0.00002512T=10^(-C5/10) 0.00398107T=10^(-C5/10) 0.10000000T=10^(-C5/10) 0.00251189T=10^(-C5/10) 1.00000000T=10^(-C5/10) 1.00000000T=10^(-C5/10) 1.00000000
Area x T 0.00306701
Area x T 0.01154511Area x T 0.00000000Area x T 0.13765138Area x T 0.00000000Area x T 0.00000000Area x T 0.00000000
Sum 0.00084685
COMPOSITE SRI 30.7REVERBERANT SPL 100.8
EXTERNAL SPL 64.1
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SOUTHERN WALL 500HzSingle leaf brick 46
Timber Door 24
Vent 1020g galvanised sheet
steel 26
total Area 179.8
Wall 151.3Door 0Vent 28.5
Roller Shutter Door 0000
T=10^(-C5/10) 0.00002512T=10^(-C5/10) 0.00398107T=10^(-C5/10) 0.10000000T=10^(-C5/10) 0.00251189T=10^(-C5/10) 1.00000000T=10^(-C5/10) 1.00000000T=10^(-C5/10) 1.00000000
Area x T 0.00380048
Area x T 0.00000000Area x T 2.85000000Area x T 0.00000000Area x T 0.00000000Area x T 0.00000000Area x T 0.00000000
Sum 0.01587208
COMPOSITE SRI 18.0REVERBERANT SPL 100.8
EXTERNAL SPL 76.8
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EASTERN/WESTERNWALL
500
Single leaf brick 46
Timber Door 24Vent 10
20g galvanised sheetsteel 26
total Area 83.2Wall 83.2Door 0Vent 0
Roller Shutter Door 0000
T=10^(-C5/10) 0.00002512T=10^(-C5/10) 0.00398107T=10^(-C5/10) 0.10000000T=10^(-C5/10) 0.00251189T=10^(-C5/10) 1.00000000T=10^(-C5/10) 1.00000000T=10^(-C5/10) 1.00000000
Area x T 0.00208989Area x T 0.00000000Area x T 0.00000000Area x T 0.00000000Area x T 0.00000000Area x T 0.00000000Area x T 0.00000000
Sum 0.00002512COMPOSITE SRI 46.0
REVERBERANT SPL 100.8EXTERNAL SPL 48.8
TOTAL EXTERNAL SPL
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ROOF 500Single leaf brick 46
Timber Door 24
Vent 1020g galvanised sheet
steel 26
total Area 297.6
Wall 0Door 0Vent 0
Roller Shutter Door 297.6000
T=10^(-C5/10) 0.00002512
T=10^(-C5/10) 0.00398107T=10^(-C5/10) 0.10000000T=10^(-C5/10) 0.00251189T=10^(-C5/10) 1.00000000T=10^(-C5/10) 1.00000000T=10^(-C5/10) 1.00000000
Area x T 0.00000000
Area x T 0.00000000Area x T 0.00000000Area x T 0.74753740Area x T 0.00000000Area x T 0.00000000Area x T 0.00000000
Sum 0.00251189
COMPOSITE SRI 26.0REVERBERANT SPL 100.8
EXTERNAL SPL 68.8TOTAL EXTERNAL SPL
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Noise Breakout from Seawater Pumping StationRoom Constant Calculation
North/South Wall Elevation
Dimensions
Total Area
40 x 5.0 = 200.0m2
Assumptions
5 Access door 2.4 x 1.2 = 2.9m2 x 5 = 14.6m2
Total brick wall area 200 14.6 = 185.4m2
East Wall Elevation
Total Area
13.5 x 5.0 = 67.5m2
(13.5 x 2)/2 = 13.5m2
Total area = 67.5 + 13.5 = 81.0m2
Assumptions
Wall has roller shutter door and 2 access doors
Roller Door 4 x 4.4 = 18.0m2
Access Door 2.4 x 1.2 = 2.9m2 x 2 = 5.8m2
Total brick area = 81 18 5.8 = 57.2m2
West Wall Elevation
Total Area
13.5 x 5.0 = 67.5m2
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Floor Area
Total Area
40.0. x 13.5 = 540m2
AssumptionsFloor is all unpainted concrete
Ceiling Area
Total Area
2.02 + 6.752 = 49.6 SQROOT 49.6 =7.07.0 x 40 = 280 x 2 = 560m2
AssumptionsNo ceiling treatment applied
BRICKTIMBERDOOR
ROLLERSHUTTER
DOOR
CONCRETEFLOOR
CEILING LOUVRES
NORTH 185.4 14.6 0 0 0 0SOUTH 185.4 14.6 0 0 0 0EAST 57.2 5.8 18.0 0 0 0WEST 75.2 5.8 0 0 0 0FLOOR 0 0 0 540.0 0 0CEILING 0 0 0 0 560.0 0TOTAL 503.2 40.8 18.0 540.0 560.0 0
TOTAL SURFACE AREA 1662.0
OCTAVE BAND CENTRE FREQUENCY63 125 250 500 1000 2000 4000 8000
WALLS 25.2 25.2 25.2 20.1 10.1 20.1 25.2 25.2CEILING 5.6 5.6 5.6 11.2 11.2 11.2 16.8 16.8
TIMBER DOOR 5.7 5.7 5.7 4.1 2.4 3.3 4.1 4.1FLOOR 5.4 5.4 5.4 10.8 10.8 10.8 27.0 27.0
LOUVRES 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0ROLLER DOOR 0 2 0 2 0 2 0 4 0 4 0 4 0 5 0 5
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Reverberant Sound Pressure Level Inside Building
Assumed Contents of Seawater Pumping Station Building 7 x Salt Water Pumps@ 85.0Lw and Electrical Switch Gear @ 75 Lw
Total internal sound power level
85 x7 = 93.5dB
93.5 + 75.0 = 93.5dB (Switch Gear is negligible)
63 125 250 500 1000 2000 4000 8000Total Internal SoundPower Level 93.5 93.5 93.5 93.5 93.5 93.5 93.5 93.5ROOM CONSTANT 43.1 43.1 43.1 47.9 35.6 47.0 77.0 77.0
1 4/Rc 0.09 0.09 0.09 0.08 0.11 0.09 0.05 0.05
2Q {DIRECTIVITYFACTOR} 2 2 2 2 2 2 2 2
3 Q/{4X3.142X.r SQ} 0.04 0.04 0.04 0.04 0.04 0.04 0.04 0.044 3 + 1 0.13 0.13 0.13 0.12 0.15 0.12 0.09 0.09
5 10 X LOG [4] -8.8 -8.8 -8.8 -9.1 -8.2 -9.0-
10.4-
10.46 SWL + [5] 84.7 84.7 84.7 84.4 85.3 84.5 83.1 83.1
Total Internal Reverberant Sound Pressure Level is@500Hz 84.4 dB
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NORTHERN/SOUTHERNWALL
500
Single leaf brick 46
Timber Door 24Vent 10
20g galvanised sheetsteel
26
000
total Area 200Wall 185.4Door 14.6Vent 0
Roller Shutter Door 0000
T=10^(-C5/10) 0.00002512T=10^(-C5/10) 0.00398107T=10^(-C5/10) 0.10000000T=10^(-C5/10) 0.00251189T=10^(-C5/10) 1.00000000T=10^(-C5/10) 1.00000000T=10^(-C5/10) 1.00000000
Area x T 0.00465704Area x T 0.05812365Area x T 0.00000000Area x T 0.00000000Area x T 0.00000000Area x T 0.00000000Area x T 0.00000000
Sum 0.00031390COMPOSITE SRI 35.0
REVERBERANT SPL 84.4EXTERNAL SPL 43.4
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EASTERN WALL 500Single leaf brick 46
Timber Door 24
Vent 1020g galvanised sheet
steel26
000
total Area 81
Wall 57.2Door 5.8Vent 0
Roller Shutter Door 18000
T=10^(-C5/10) 0.00002512
T=10^(-C5/10) 0.00398107T=10^(-C5/10) 0.10000000T=10^(-C5/10) 0.00251189T=10^(-C5/10) 1.00000000T=10^(-C5/10) 1.00000000T=10^(-C5/10) 1.00000000
Area x T 0.00143680
Area x T 0.02309022Area x T 0.00000000Area x T 0.04521396Area x T 0.00000000Area x T 0.00000000Area x T 0.00000000
Sum 0.00086100
COMPOSITE SRI 30.6REVERBERANT SPL 84.4
EXTERNAL SPL 47.8
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WESTERN WALL 500Single leaf brick 46
Timber Door 24
Vent 1020g galvanised sheet
steel26
000
total Area 81
Wall 75.2Door 5.8Vent 0
Roller Shutter Door 0000
T=10^(-C5/10) 0.00002512
T=10^(-C5/10) 0.00398107T=10^(-C5/10) 0.10000000T=10^(-C5/10) 0.00251189T=10^(-C5/10) 1.00000000T=10^(-C5/10) 1.00000000T=10^(-C5/10) 1.00000000
Area x T 0.00188894
Area x T 0.02309022Area x T 0.00000000Area x T 0.00000000Area x T 0.00000000Area x T 0.00000000Area x T 0.00000000
Sum 0.00030838
COMPOSITE SRI 35.1REVERBERANT SPL 84.4
EXTERNAL SPL 43.3
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ROOF 500Single leaf brick 46
Timber Door 24
Vent 1020g galvanised sheet
steel26
000
total Area 560
Wall 0Door 0Vent 0
Roller Shutter Door 560000
T=10^(-C5/10) 0.00002512
T=10^(-C5/10) 0.00398107T=10^(-C5/10) 0.10000000T=10^(-C5/10) 0.00251189T=10^(-C5/10) 1.00000000T=10^(-C5/10) 1.00000000T=10^(-C5/10) 1.00000000
Area x T 0.00000000
Area x T 0.00000000Area x T 0.00000000Area x T 1.40665640Area x T 0.00000000Area x T 0.00000000Area x T 0.00000000
Sum 0.00251189
COMPOSITE SRI 26.0REVERBERANT SPL 84.4
EXTERNAL SPL 52.4
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Noise Breakout from Pump HallRoom Constant Calculation
Wall 1 and 3
Dimensions
Total Area
24.5 x 5.0 = 122.5m2
Assumptions
All brick wall
Wall 2
Total Area
10.5 x 5.0 = 52.5m2
2.5 x 5.25 = 13.1m2
Total area = 52.5 + 13.1 = 65.6m2
Assumptions
All brick wall
Wall 4
Total Area
10.5 x 5.0 = 52.5m2
2.5 x 5.25 = 13.1m2
Total area = 52.5 + 13.1 = 65.6m2
Assumptions
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Ceiling Area
Total Area
2.52 + 5.252 = 33.8 SQROOT 33.8 =5.8m5.8 x 24.5 = 142.1 x 2 = 284.2m2
AssumptionsNo ceiling treatment applied
BRICKTIMBERDOOR
ROLLERSHUTTER
DOOR
CONCRETEFLOOR
CEILING LOUVRES
1 122.5 0 0 0 0 02 65.6 0 0 0 0 03 122.5 0 0 0 0 0
4 53.6 12.0 0 0 0 0FLOOR 0 0 0 257.3 0 0CEILING 0 0 0 0 284.2 0TOTAL 0
TOTAL SURFACE AREA
OCTAVE BAND CENTRE FREQUENCY63 125 250 500 1000 2000 4000 8000
WALLS 0.05 0.05 0.05 0.04 0.02 0.04 0.05 0.05CEILING 0.35 0.35 0.39 0.44 0.49 0.54 0.57 0.57
TIMBER DOOR 0.14 0.14 0.14 0.1 0.06 0.08 0.1 0.1FLOOR 0.01 0.01 0.01 0.02 0.02 0.02 0.05 0.05
LOUVRES 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6ROLLER DOOR 0.35 0.35 0.39 0.44 0.49 0.54 0.57 0.57
0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.00.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
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Reverberant Sound Pressure Level Inside Building
Assumed Contents of Seawater Pumping Station Building
12 x Salt Water Discharge Pumps@ 85.0 Lw and 12 x Control Valves @ 75.0 Lw
Total internal sound power level
85 x12 = 95.8dB
75 x12 = 85.8dB
95.8 + 85.8 = 96.2dB
63 125 250 500 1000 2000 4000 8000Total Internal SoundPower Level 96.2 96.2 96.2 96.2 96.2 96.2 96.2 96.2
ROOM CONSTANT 139.7 139.7 154.6 173.1 182.0 212.8 248.1 248.1
1 4/Rc 0.03 0.03 0.03 0.02 0.02 0.02 0.02 0.02
2Q {DIRECTIVITYFACTOR} 2 2 2 2 2 2 2 2
3 Q/{4X3.142X.r SQ} 0.04 0.04 0.04 0.04 0.04 0.04 0.04 0.044 3 + 1 0.07 0.07 0.07 0.06 0.06 0.06 0.06 0.065 10 X LOG [4] -11.6 -11.6 -11.8 -12.0 -12.1 -12.3 -12.5 -12.56 SWL + [5] 84.6 84.6 84.4 84.2 84.1 83.9 83.7 83.7
Total Internal Reverberant Sound Pressure Level @500Hz 84.2 dB
Wall 3 not included as it is adjacent to ECE and Control Room
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Wall 1 500Single leaf brick 46
Timber Door 24
Vent 1020g galvanised sheet
steel26
000
total Area 112.5
Wall 112.5Door 0Vent 0
Roller Shutter Door 0000
T=10^(-C5/10) 0.00002512
T=10^(-C5/10) 0.00398107T=10^(-C5/10) 0.10000000T=10^(-C5/10) 0.00251189T=10^(-C5/10) 1.00000000T=10^(-C5/10) 1.00000000T=10^(-C5/10) 1.00000000
Area x T 0.00282587
Area x T 0.00000000Area x T 0.00000000Area x T 0.00000000Area x T 0.00000000Area x T 0.00000000Area x T 0.00000000
Sum 0.00002512
COMPOSITE SRI 46.0REVERBERANT SPL 84.2EXTERNAL SPL 32.2
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WALL 2 500Single leaf brick 46
Timber Door 24
Vent 1020g galvanised sheet
steel26
000
total Area 65.6
Wall 65.6Door 0Vent 0
Roller Shutter Door 0000
T=10^(-C5/10) 0.00002512
T=10^(-C5/10) 0.00398107T=10^(-C5/10) 0.10000000T=10^(-C5/10) 0.00251189T=10^(-C5/10) 1.00000000T=10^(-C5/10) 1.00000000T=10^(-C5/10) 1.00000000
Area x T 0.00164780
Area x T 0.00000000Area x T 0.00000000Area x T 0.00000000Area x T 0.00000000Area x T 0.00000000Area x T 0.00000000
Sum 0.00002512
COMPOSITE SRI 46.0REVERBERANT SPL 84.2EXTERNAL SPL 32.2
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WALL 4 500Single leaf brick 46
Timber Door 24
Vent 1020g galvanised sheet
steel26
000
total Area 65.6
Wall 53.6Door 12Vent 0
Roller Shutter Door 0000
T=10^(-C5/10) 0.00002512
T=10^(-C5/10) 0.00398107T=10^(-C5/10) 0.10000000T=10^(-C5/10) 0.00251189T=10^(-C5/10) 1.00000000T=10^(-C5/10) 1.00000000T=10^(-C5/10) 1.00000000
Area x T 0.00134637
Area x T 0.04777286Area x T 0.00000000Area x T 0.00000000Area x T 0.00000000Area x T 0.00000000Area x T 0.00000000
Sum 0.00074877
COMPOSITE SRI 31.3REVERBERANT SPL 84.2EXTERNAL SPL 46.9
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ROOF 500Single leaf brick 46
Timber Door 24
Vent 1020g galvanised sheet
steel26
000
total Area 284.2
Wall 0Door 0Vent 0
Roller Shutter Door 284.2000
T=10^(-C5/10) 0.00002512
T=10^(-C5/10) 0.00398107T=10^(-C5/10) 0.10000000T=10^(-C5/10) 0.00251189T=10^(-C5/10) 1.00000000T=10^(-C5/10) 1.00000000T=10^(-C5/10) 1.00000000
Area x T 0.00000000
Area x T 0.00000000Area x T 0.00000000Area x T 0.71387812Area x T 0.00000000Area x T 0.00000000Area x T 0.00000000
Sum 0.00251189
COMPOSITE SRI 26.0REVERBERANT SPL 84.2EXTERNAL SPL 52.2
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Noise Breakout from Booster Pump ECE RoomRoom Constant Calculation
Wall 1Dimensions
Total Area
12 x 2.5 = 30.0m2
Assumptions
1 doorway
Door - 2 x 2 = 4.0m2
Wall - 30 - 4 = 26.0m2
Wall 2Total Area
10.5 x 2.5 = 26.3m2
2.5 x 5.25 = 13.1m2
Total area = 26.3 + 13.1 = 39.4m
2
Assumptions
All brick wall with 1 doorway2.4 x 1.2 = 2.9m2Total brick wall area
39.4 2.9 = 36.5m2
Wall 3
Total Area
12.0 x 2.5 = 30.0m2
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Floor Area
Total Area
12.0. x 10.5 = 126m2
AssumptionsFloor is all unpainted concrete
Ceiling Area
Total Area
52 + 5.252 = 52.6 SQROOT 52.5 = 7.3m7.3 x 12 = 87 x 2 = 174m2
AssumptionsNo ceiling treatment applied
BRICKTIMBERDOOR
ROLLERSHUTTER
DOOR
CONCRETEFLOOR
CEILING LOUVRES
1 26.0 4.0 0.0 0.0 0.0 0.02 36.5 2.9 0.0 0.0 0.0 0.03 30.0 0.0 0.0 0.0 0.0 0.0
4 39.4 0.0 0.0 0.0 0.0 0.0FLOOR 0.0 0.0 0.0 126.0 0.0 0.0CEILING 0.0 0.0 0.0 0.0 174.0 0.0TOTAL
TOTAL SURFACE AREA
OCTAVE BAND CENTRE FREQUENCY
63 125 250 500 1000 2000 4000 8000WALLS 6.6 6.6 6.6 5.3 2.6 5.3 6.6 6.6
CEILING 60.9 60.9 67.9 76.6 85.3 94.0 99.2 99.2TIMBER DOOR 1.0 1.0 1.0 0.7 0.4 0.6 0.7 0.7
FLOOR 3.7 3.7 3.7 7.4 7.4 7.4 18.6 18.6
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Reverberant Sound Pressure Level Inside Building
Assumed Contents of ECE Building
Electrical Control Equipment @75dB Lw
63 125 250 500 1000 2000 4000 8000
Total Internal SoundPower Level 75 75 75 75 75 75 75 75ROOM CONSTANT 80.7 80.7 89.5 103.6 111.3 127.1 153.0 153.0
1 4/Rc 0.05 0.05 0.04 0.04 0.04 0.03 0.03 0.03
2Q {DIRECTIVITYFACTOR} 2 2 2 2 2 2 2 2
3 Q/{4X3.142X.r SQ} 0.04 0.04 0.04 0.04 0.04 0.04 0.04 0.04
4 3 + 1 0.09 0.09 0.08 0.08 0.08 0.07 0.07 0.07
5 10 X LOG [4]-
10.5-
10.5-
10.7 -11.1 -11.2 -11.5 -11.8 -11.86 SWL + [5] 64.5 64.5 64.3 63.9 63.8 63.5 63.2 63.2
Total Internal Reverberant Sound Pressure Level is 63.9 dB
Wall 3 not included as it is adjacent to ECE and Control Room
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Wall 1 500Single leaf brick 46
Timber Door 24
Vent 1020g galvanised sheet
steel26
000
total Area 26Wall 22Door 4Vent 0
Roller Shutter Door 0000
T=10^(-C5/10) 0.00002512
T=10^(-C5/10) 0.00398107T=10^(-C5/10) 0.10000000T=10^(-C5/10) 0.00251189T=10^(-C5/10) 1.00000000T=10^(-C5/10) 1.00000000T=10^(-C5/10) 1.00000000
Area x T 0.00055262
Area x T 0.01592429Area x T 0.00000000Area x T 0.00000000Area x T 0.00000000Area x T 0.00000000Area x T 0.00000000
Sum 0.00063373
COMPOSITE SRI 32.0REVERBERANT SPL 63.9EXTERNAL SPL 26.0
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WALL 3 and 4 500Single leaf brick 46
Timber Door 24
Vent 1020g galvanised sheet
steel26
000
total Area 30Wall 30Door 0Vent 0
Roller Shutter Door 0000
T=10^(-C5/10) 0.00002512
T=10^(-C5/10) 0.00398107T=10^(-C5/10) 0.10000000T=10^(-C5/10) 0.00251189T=10^(-C5/10) 1.00000000T=10^(-C5/10) 1.00000000T=10^(-C5/10) 1.00000000
Area x T 0.00075357
Area x T 0.00000000Area x T 0.00000000Area x T 0.00000000Area x T 0.00000000Area x T 0.00000000Area x T 0.00000000
Sum 0.00002512
COMPOSITE SRI 46.0REVERBERANT SPL 63.9EXTERNAL SPL 11.9
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Roof 500Single leaf brick 46
Timber Door 24
Vent 1020g galvanised sheet
steel26
000
total Area 174Wall 0Door 0Vent 0
Roller Shutter Door 174000
T=10^(-C5/10) 0.00002512
T=10^(-C5/10) 0.00398107T=10^(-C5/10) 0.10000000T=10^(-C5/10) 0.00251189T=10^(-C5/10) 1.00000000T=10^(-C5/10) 1.00000000T=10^(-C5/10) 1.00000000
Area x T 0.00000000
Area x T 0.00000000Area x T 0.00000000Area x T 0.43706824Area x T 0.00000000Area x T 0.00000000Area x T 0.00000000
Sum 0.00251189COMPOSITE SRI 26.0
REVERBERANT SPL 63.9EXTERNAL SPL 31.9
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Noise Breakout from Booster Pump Control RoomRoom Constant Calculation
Wall 1Dimensions
Total Area
5 x 1 = 5m2
5/2 = 2.5m2
2.5 + 5 = 7.5m2Assumptions
1 doorway
Door 2.4 x 1.2 = 2.9m2
Wall 7.5 2.9 = 4.6m2
Wall 2
Total Area
4 x 10 = 40.0m2
Assumptions
All brick wall with 1 doorway2.4 x 1.2 = 2.9m2Total brick wall area
40.0 2.9 = 37.1m2
Wall 3Same as wall 1 but with no door, all brick
7.5m2
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Floor Area
Total Area
5.5 x 10 = 55m2
AssumptionsFloor is all unpainted concrete
Ceiling Area
Total Area
52 x 12 = 26.0 SQROOT= 5.1m2
5.1 x 10 = 51m2
AssumptionsNo ceiling treatment applied
BRICKTIMBERDOOR
ROLLERSHUTTER
DOOR
CONCRETEFLOOR
CEILING LOUVRES
1 4.6 2.9 0 0 0 02 37.1 2.9 0 0 0 03 7.5 0 0 0 0 04 40.0 0 0 0 0 0
FLOOR 0 0 0 40 0 0CEILING 0 0 0 0 51 0TOTAL
TOTAL SURFACE AREA
OCTAVE BAND CENTRE FREQUENCY
63 125 250 500 1000 2000 4000 8000WALLS 4.5 4.5 4.5 3.6 1.8 3.6 4.5 4.5
CEILING 17.9 17.9 19.9 22.4 25.0 27.5 29.1 29.1TIMBER DOOR 0.8 0.8 0.8 0.6 0.3 0.5 0.6 0.6
FLOOR 3.7 3.7 3.7 7.4 7.4 7.4 18.6 18.6LOUVRES 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
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Reverberant Sound Pressure Level Inside Building
Assumed Contents of Control Room Building
Electrical Control Equipment @75dB Lw
63 125 250 500 1000 2000 4000 8000
Total Internal SoundPower Level 75 75 75 75 75 75 75 75ROOM CONSTANT 28.3 28.3 30.6 36.4 37.0 42.2 58.7 58.7
1 4/Rc 0.14 0.14 0.13 0.11 0.11 0.09 0.07 0.07
2Q {DIRECTIVITYFACTOR} 2 2 2 2 2 2 2 2
3 Q/{4X3.142X.r SQ} 0.04 0.04 0.04 0.04 0.04 0.04 0.04 0.04
4 3 + 1 0.18 0.18 0.17 0.15 0.15 0.13 0.11 0.115 10 X LOG [4] -7.4 -7.4 -7.7 -8.3 -8.3 -8.7 -9.7 -9.76 SWL + [5] 67.6 67.6 67.3 66.7 66.7 66.3 65.3 65.3
Total Internal Reverberant Sound Pressure Level @500Hz 66.7 dB
Wall 2 and 3 not included as it is adjacent to ECE and Pump Hall
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Wall 1 500Single leaf brick 46
Timber Door 24
Vent 1020g galvanised sheetsteel
26
000
total Area 7.5Wall 4.6Door 2.9Vent 0
Roller Shutter Door 0000
T=10^(-C5/10) 0.00002512
T=10^(-C5/10) 0.00398107T=10^(-C5/10) 0.10000000T=10^(-C5/10) 0.00251189T=10^(-C5/10) 1.00000000T=10^(-C5/10) 1.00000000T=10^(-C5/10) 1.00000000
Area x T 0.00011555
Area x T 0.01154511Area x T 0.00000000Area x T 0.00000000Area x T 0.00000000Area x T 0.00000000Area x T 0.00000000
Sum 0.00155475COMPOSITE SRI 28.1
REVERBERANT SPL 66.7EXTERNAL SPL 32.7
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WALL 3 and 4 500Single leaf brick 46
Timber Door 24
Vent 1020g galvanised sheetsteel
26
000
total Area 40Wall 40Door 0Vent 0
Roller Shutter Door 0000
T=10^(-C5/10) 0.00002512
T=10^(-C5/10) 0.00398107T=10^(-C5/10) 0.10000000T=10^(-C5/10) 0.00251189T=10^(-C5/10) 1.00000000T=10^(-C5/10) 1.00000000T=10^(-C5/10) 1.00000000
Area x T 0.00100475
Area x T 0.00000000Area x T 0.00000000Area x T 0.00000000Area x T 0.00000000Area x T 0.00000000Area x T 0.00000000
Sum 0.00002512COMPOSITE SRI 46.0
REVERBERANT SPL 66.7EXTERNAL SPL 14.7
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Roof 500Single leaf brick 46
Timber Door 24
Vent 1020g galvanised sheetsteel
26
000
total Area 51Wall 0Door 0Vent 0
Roller Shutter Door 51000
T=10^(-C5/10) 0.00002512
T=10^(-C5/10) 0.00398107T=10^(-C5/10) 0.10000000T=10^(-C5/10) 0.00251189T=10^(-C5/10) 1.00000000T=10^(-C5/10) 1.00000000T=10^(-C5/10) 1.00000000
Area x T 0.00000000
Area x T 0.00000000Area x T 0.00000000Area x T 0.12810621Area x T 0.00000000Area x T 0.00000000Area x T 0.00000000
Sum 0.00251189COMPOSITE SRI 26.0
REVERBERANT SPL 66.7EXTERNAL SPL 34.7
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Noise Breakout from Switch Gear RoomRoom Constant Calculation
Wall 1Dimensions
Total Area
4.5 x 2.5 = 11.25m2
Assumptions
1 doorway
Door 2 x 2 = 4.0m2
Wall 11.25 4.0 = 7.25m2
Wall 2 and 4
Total Area
7 x 2.5 = 17.5m2
1.5 x 3.5 = 5.25m2
5.25 + 17.5 = 22.75m2
Assumptions
All brick wall
Wall 3
Total Area
4.5 x 25 = 11.25m2
Assumptions
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Ceiling Area
Total Area
1.52
x 3.52
= 14.5 SQROOT= 3.8m2
3.8 x 4.5 = 17.1 x 2= 34.2m2
AssumptionsNo ceiling treatment applied
BRICKTIMBERDOOR
ROLLERSHUTTER
DOOR
CONCRETEFLOOR
CEILING LOUVRES
1 7.25 4.0 0 0 0 02 22.75 0 0 0 0 03 11.25 0 0 0 0 0
4 22.75 0 0 0 0 0FLOOR 0 0 0 31.5 0 0CEILING 0 0 0 0 34.2 0TOTAL
TOTAL SURFACE AREA
OCTAVE BAND CENTRE FREQUENCY
63 125 250 500 1000 2000 4000 8000WALLS 3.2 3.2 3.2 2.6 1.3 2.6 3.2 3.2
CEILING 12.0 12.0 13.3 15.0 16.8 18.5 19.5 19.5
TIMBER DOOR 0.6 0.6 0.6 0.4 0.2 0.3 0.4 0.4FLOOR 3.7 3.7 3.7 7.4 7.4 7.4 18.6 18.6
LOUVRES 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0ROLLER DOOR 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
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Reverberant Sound Pressure Level Inside Building
Assumed Contents of Control Room Building
Switch Gear @ 75dB Lw
63 125 250 500 1000 2000 4000 8000
Total Internal SoundPower Level 75 75 75 75 75 75 75 75ROOM CONSTANT 20.3 20.3 21.8 26.9 27.2 30.6 45.7 45.7
1 4/Rc 0.20 0.20 0.18 0.15 0.15 0.13 0.09 0.09
2Q {DIRECTIVITYFACTOR} 2 2 2 2 2 2 2 2
3 Q/{4X3.142X.r SQ} 0.04 0.04 0.04 0.04 0.04 0.04 0.04 0.044 3 + 1 0.24 0.24 0.22 0.19 0.19 0.17 0.13 0.135 10 X LOG [4] -6.3 -6.3 -6.5 -7.2 -7.3 -7.7 -9.0 -9.06 SWL + [5] 68.7 68.7 68.5 67.8 67.7 67.3 66.0 66.0
Total Internal Reverberant Sound Pressure Level @ 500Hz 67.8 dB
Wall 2 and 4 not included as it is adjacent to ECE room
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WALL 3 500Single leaf brick 46
Timber Door 24
Vent 10
20g galvanised sheetsteel
26
000
total Area 11.25Wall 11.25
Door 0Vent 0
Roller Shutter Door 0000
T=10^(-C5/10) 0.00002512
T=10^(-C5/10) 0.00398107T=10^(-C5/10) 0.10000000T=10^(-C5/10) 0.00251189T=10^(-C5/10) 1.00000000T=10^(-C5/10) 1.00000000T=10^(-C5/10) 1.00000000
Area x T 0.00028259
Area x T 0.00000000Area x T 0.00000000Area x T 0.00000000Area x T 0.00000000Area x T 0.00000000Area x T 0.00000000
Sum 0.00002512COMPOSITE SRI 46.0
REVERBERANT SPL 67.8EXTERNAL SPL 15.8
R f 500
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Roof 500Single leaf brick 46
Timber Door 24
Vent 10
20g galvanised sheetsteel
26
000
total Area 34.2Wall 0
Door 0Vent 0
Roller Shutter Door 34.2000
T=10^(-C5/10) 0.00002512
T=10^(-C5/10) 0.00398107T=10^(-C5/10) 0.10000000T=10^(-C5/10) 0.00251189T=10^(-C5/10) 1.00000000T=10^(-C5/10) 1.00000000T=10^(-C5/10) 1.00000000
Area x T 0.00000000
Area x T 0.00000000Area x T 0.00000000Area x T 0.08590652Area x T 0.00000000Area x T 0.00000000Area x T 0.00000000
Sum 0.00251189COMPOSITE SRI 26.0
REVERBERANT SPL 67.8EXTERNAL SPL 35.8
N i B k t f St db G t R
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Noise Breakout from Standby Generator RoomRoom Constant Calculation
Wall 1Dimensions
Total Area
2.5 x 3 = 7.5m2
Assumptions
1 doorway
Door 2 x 2 = 4.0m2
Wall 7.5 4.0 = 3.5m2
Wall 2 and 4
Total Area
7 x 2.5 = 17.5m2
1.5 x 3.5 = 5.25m2
5.25 + 17.25 = 22.75m2
Assumptions
All brick wall
Wall 3
Total Area
2.5 x 3 = 7.5m2
Assumptions
Ceiling Area
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Ceiling Area
Total Area
1.5
2
x 3.5
2
= 14.5 SQROOT= 3.8m
2
3.8 x 3 = 11.4 x 2= 22.8m2
AssumptionsNo ceiling treatment applied
BRICKTIMBERDOOR
ROLLERSHUTTER
DOOR
CONCRETEFLOOR
CEILING LOUVRES
1 4.0 3.5 0 0 0 02 22.75 0 0 0 0 03 7.5 0 0 0 0 0
4 22.75 0 0 0 0 0FLOOR 0 0 0 21 0 0CEILING 0 0 0 0 34.2 0TOTAL
TOTAL SURFACE AREA
OCTAVE BAND CENTRE FREQUENCY
63 125 250 500 1000 2000 4000 8000WALLS 2.9 2.9 2.9 2.3 1.1 2.3 2.9 2.9
CEILING 12.0 12.0 13.3 15.0 16.8 18.5 19.5 19.5TIMBER DOOR 0.5 0.5 0.5 0.4 0.2 0.3 0.4 0.4
FLOOR 3.7 3.7 3.7 7.4 7.4 7.4 18.6 18.6
LOUVRES 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0ROLLER DOOR 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.00.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
Reverberant Sound Pressure Level Inside Building
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Reverberant Sound Pressure Level Inside Building
Assumed Contents of Control Room Building
Diesel Generator 102dB Lw from BS 5228 Ref 53 Table D.7
63 125 250 500 1000 2000 4000 8000
Total Internal SoundPower Level 102 102 102 102 102 102 102 102ROOM CONSTANT 19.8 19.8 21.3 26.5 27.0 30.3 45.3 45.3
1 4/Rc 0.20 0.20 0.19 0.15 0.15 0.13 0.09 0.09
2Q {DIRECTIVITYFACTOR} 2 2 2 2 2 2 2 2
3 Q/{4X3.142X.r SQ} 0.04 0.04 0.04 0.04 0.04 0.04 0.04 0.044 3 + 1 0.24 0.24 0.23 0.19 0.19 0.17 0.13 0.135 10 X LOG [4] -6.2 -6.2 -6.4 -7.2 -7.3 -7.7 -8.9 -8.96 SWL + [5] 95.8 95.8 95.6 94.8 94.7 94.3 93.1 93.1
Total Internal Reverberant Sound Pressure Level @500Hz 94.8 dB
Wall 2 not included as it is adjacent to switch gear room
Wall 1 500
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Wall 1 500Single leaf brick 46
Timber Door 24
Vent 10
20g galvanised sheetsteel
26
000
total Area 7.5Wall 4
Door 3.5Vent 0
Roller Shutter Door 0000
T=10^(-C5/10) 0.00002512
T=10^(-C5/10) 0.00398107T=10^(-C5/10) 0.10000000T=10^(-C5/10) 0.00251189T=10^(-C5/10) 1.00000000T=10^(-C5/10) 1.00000000T=10^(-C5/10) 1.00000000
Area x T 0.00010048
Area x T 0.01393375Area x T 0.00000000Area x T 0.00000000Area x T 0.00000000Area x T 0.00000000Area x T 0.00000000
Sum 0.00187123COMPOSITE SRI 27.3
REVERBERANT SPL 94.8EXTERNAL SPL 61.5
WALL 3 500
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WALL 3 500Single leaf brick 46
Timber Door 24
Vent 10
20g galvanised sheetsteel
26
000
total Area 7.5Wall 7.5
Door 0Vent 0
Roller Shutter Door 0000
T=10^(-C5/10) 0.00002512
T=10^(-C5/10) 0.00398107T=10^(-C5/10) 0.10000000T=10^(-C5/10) 0.00251189T=10^(-C5/10) 1.00000000T=10^(-C5/10) 1.00000000T=10^(-C5/10) 1.00000000
Area x T 0.00018839Area x T 0.00000000Area x T 0.00000000Area x T 0.00000000Area x T 0.00000000Area x T 0.00000000Area x T 0.00000000
Sum 0.00002512COMPOSITE SRI 46.0
REVERBERANT SPL 94.8EXTERNAL SPL 42.8
Wall 4 500
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Single leaf brick 46
Timber Door 24
Vent 10
20g galvanised sheetsteel
26
000
total Area 22.75Wall 22.75
Door 0Vent 0
Roller Shutter Door 0000
T=10^(-C5/10) 0.00002512
T=10^(-C5/10) 0.00398107T=10^(-C5/10) 0.10000000T=10^(-C5/10) 0.00251189T=10^(-C5/10) 1.00000000T=10^(-C5/10) 1.00000000T=10^(-C5/10) 1.00000000
Area x T 0.00057145Area x T 0.00000000Area x T 0.00000000Area x T 0.00000000Area x T 0.00000000Area x T 0.00000000Area x T 0.00000000
Sum 0.00002512COMPOSITE SRI 46.0
REVERBERANT SPL 94.8EXTERNAL SPL 42.8
Roof 500
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Single leaf brick 46
Timber Door 24
Vent 10
20g galvanised sheetsteel
26
000
total Area 22.8Wall 0
Door 0Vent 0
Roller Shutter Door 22.8000
T=10^(-C5/10) 0.00002512
T=10^(-C5/10) 0.00398107T=10^(-C5/10) 0.10000000T=10^(-C5/10) 0.00251189T=10^(-C5/10) 1.00000000T=10^(-C5/10) 1.00000000T=10^(-C5/10) 1.00000000
Area x T 0.00000000Area x T 0.00000000Area x T 0.00000000Area x T 0.05727101Area x T 0.00000000Area x T 0.00000000Area x T 0.00000000
Sum 0.00251189COMPOSITE SRI 26.0
REVERBERANT SPL 67.8EXTERNAL SPL 35.8
PLANT AND EQUIPMENT SOUND POWER LEVELS
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PLANT AND EQUIPMENT SOUND POWER LEVELSUSED IN ASSESSMENT
Plant / EquipmentSound Power
LwPlant / Equipment
Sound PowerLw
Deaerator Bund 70 NTS Gas Filter Coalesces 75Deaerator Tanks 0 Pig Receivers 75
Cavity Sump Pumps 70 Pipe work Gas Service 75Air-Compressed gas 90 Pipe work Liquid Service 75
Air-Regeneration gas 73.1 Pipe work Vent System 75CO2 Package 70 Pressure Letdown Valves 91Condensate Tank 75 Regeneration Gas Heater 85Control Valves 80 Slug catchers 75Control Valves GasService
75 Sump Pumps 75
Control Valves LiquidService
75 Vent KO Drum 75
Corrosion inhibitorpackage incl tank &pumps
92 Nitrogen Stack Silencer 80
Dry Glycol Tank 75 Vent Stack 110Electrical Switch Yard 85 VSD Cooling System Coolers 88Fuel Gas Package 85 Wet Glycol Tank 75Fuel gas package 70 Nitrogen Generation Package 70
Gas - Glycol HeatExchanger
75 Air-Regeneration gas 73.1
Gas Heaters 75 Control Valves Gas Service 75Glycol Contactor 75 Control Valves Liquid Service 75Glycol Filters 75 Methanol Injection Pumps 75
Glycol Make-up Pump 80 Control Valves 80Glycol Make-up Tank 75 Glycol Make-up Pump 80
Glycol RegenerationUnit 93 Heating Medium Make-up Pump 80
Glycol Separator 75 Miscellaneous Pumps 80Heating MediumCirculation Pumps
88 Nitrogen Stack Silencer NO 80
H i M di M k
Plant / EquipmentSound Power
LPlant / Equipment
Sound PowerL
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Plant / EquipmentLw
Plant / EquipmentLw
LP Compressor Cooler 93 VSD Cooling System Coolers 88LP Compressor
SuctionDrum 75 Air-Compressed gas 90Methanol InjectionPumps
75 HP Glycol Pumps 90
Methanol Pumps 90 Methanol Pumps 90Methanol Storage Tank 75 Pressure Letdown Valves 91Miscellaneous Pumps 80 HP Compressor Cooler 93Nitrogen Back-up
System70 LP Compressor Cooler 93
Nitrogen GenerationPackage
70 Nitrogen Vent Stack 80
Vent Stack* 110
*Vent stack has not been included in results. The vents are only used for routinemaintenance and for emergencies. During normal operation the flow will be essentially
zero. During an emergency the plant is depressurised in zones, each event is a high flow,but only for 15 minutes.
Predicted Noise LevelsExtract from scope of BS 4142
The method is not suitable for assessing the noise measured inside buildings or when the
background and rating noise levels are both very low. NOTE. For the purposes of thisstandard, background noise levels below about 30 dB and rating levels below about 35 dBare considered to be very low.
The above extract suggests that BS 4142 may not be applicable for this project asbackground noise levels are below 30dB and the highest rating noise level is 37.1 (with5dB penalty applied).
Table below provides a comparison of levels against BS4142 (with 5dB penalty), WorldHealth Organisation levels, BS8233 internal noise levels and Minerals Policy Statement 2.
PREDICTED RATING BACKGROUND BS8233
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50
RECEPTORPREDICTEDNOISELEVEL
RATINGNOISELEVEL
BACKGROUNDNOISE
BS4142 WHO BS8233INTERNALLEVEL
MPS 2
DAY NIGHT DAY NIGHT DAY NIGHT DAY NIGHT
Cote Walls Farm South Faade 30.0 35.0 32.2 24.8 2.8 10.2 -25.0 -10.0 -10.0 -25.0 -12.0Cote Walls Farm North Faade 21.8 26.8 32.2 24.8 -5.4 2.0 -33.2 -18.2 -18.2 -33.2 -20.2
Cote Walls Farm West Faade 29.1 34.1 32.2 24.8 1.9 9.3 -25.9 -10.9 -10.9 -25.9 -12.9
Cote Walls Farm East Faade 32.2 37.2 32.2 24.8 5.0 12.4 -22.8 -7.8 -7.8 -22.8 -9.8
Ivy Cottages 27.3 32.3 32.2 24.8 0.1 7.5 -27.7 -12.7 -12.7 -27.7 -14.7
Park Farm 28.9 33.9 32.2 24.8 1.7 9.1 -26.1 -11.1 -11.1 -26.1 -13.1
Carters Farm 15.9 20.9 34.9 29.5 -14.0 -8.6 -39.1 -24.1 -24.1 -39.1 -26.1
Elm Farm 12.5 17.5 38.6 N/A -21.1 N/A -42.5 -27.5 -27.5 -42.5 -29.5
Corcas Farm 27.2 32.2 32.2 24.8 0.0 7.4 -27.8 -12.8 -12.8 -27.8 -14.8
Rossall Hospital 28.7 33.7 41.7 37.4 -8.0 -3.7 -26.3 -11.3 -11.3 -26.3 -13.3
Rossall School 17.8 22.8 41.7 37.4 -18.9 -14.6 -37.2 -22.2 -22.2 -37.2 -24.2
Blackpool and The Fylde College 13.1 18.1 41.7 37.4 -23.6 -19.3 -41.9 -26.9 -26.9 -41.9 -28.9
Sportsmans Cottage and Caravan Park 23.6 28.6 34.8 29.8 -6.2 -1.2 -31.4 -16.4 -16.4 -31.4 -18.4
Riverside Cottage 24.5 29.5 34.8 29.8 -5.3 -0.3 -30.5 -15.5 -15.5 -30.5 -17.5
Little Height o th Hill 23.3 28.3 34.9 29.5 -6.6 -1.2 -31.7 -16.7 -16.7 -31.7 -18.7
Height o th Hill 23.2 28.2 34.9 29.5 -6.7 -1.3 -31.8 -16.8 -16.8 -31.8 -18.8
The Grange 23.2 28.2 32.2 24.8 -4.0 3.4 -31.8 -16.8 -16.8 -31.8 -18.8
Stanah House Caravan Park 9.6 14.6 36.9 33.2 -22.3 -18.6 -45.4 -30.4 -30.4 -45.4 -32.4
Harbour Village Development 26.6 31.6 35.6 32.2 -4.0 -0.6 -28.4 -13.4 -13.4 -28.4 -15.4
Broadwater Caravan Park 13.9 18.9 47.7 34.1 -28.8 -15.2 -41.1 -26.1 -26.1 -41.1 -28.1
Residential Dwellings Along West Way 18.8 23.8 36.9 33.2 -13.1 -9.4 -36.2 -21.2 -21.2 -36.2 -23.2
Residential Dwellings Along South Strand 13.6 18.6 35.6 32.2 -17.0 -13.6 -41.4 -26.4 -26.4 -41.4 -28.4
Red cell indicates rating level in excess of 10dB of background noise level.
Amber cell indicates rating level in excess of 5dB but less than 10dB of background noise level.
Green cell indicate rating noise level less than background noise level.
Predicted Construction and Operation Noise Levels
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Predicted Construction and Operation Noise Levels
RECEPTOR
PREDICTED
NOISELEVELDAYTIME
PREDICTED
NOISELEVELNIGHT TIME
BACKGROUND
NOISE
WHOBS8233INTERNALLEVEL
MPS 2
DAY NIGHT DAY NIGHT DAY NIGHT
Cote Walls Farm South Faade 34.1 34.1 32.2 24.8 -20.9 -5.9 -5.9 -20.9 -7.9
Cote Walls Farm North Faade 31.8 31.8 32.2 24.8 -23.2 -8.2 -8.2 -23.2 -10.2
Cote Walls Farm West Faade 33.0 33.0 32.2 24.8 -22 -7.0 -7.0 -22 -9.0
Cote Walls Farm East Faade 34.7 34.7 32.2 24.8 -20.3 -5.3 -5.3 -20.3 -7.3
Ivy Cottages 36.1 28.3 32.2 24.8 -18.9 -11.7 -11.7 -18.9 -13.7
Park Farm 32.1 29.6 32.2 24.8 -22.9 -10.4 -10.4 -22.9 -12.4
Corcas Farm 28.7 28.2 32.2 24.8 -26.3 -11.8 -11.8 -26.3 -13.8
Sportsman Cottage and Caravan Park 26.0 26.0 34.8 29.8 -29 -14.0 -14.0 -29 -16.0
Riverside Cottage 26.5 26.5 34.8 29.8 -28.5 -13.5 -13.5 -28.5 -15.5
Little Height o th Hill 26.1 25.9 34.9 29.5 -28.9 -14.1 -14.1 -28.9 -16.1
Height o th Hill 26.2 25.8 34.9 29.5 -28.8 -14.2 -14.2 -28.8 -16.2
The Grange 26.4 25.9 32.2 24.8 -28.6 -14.1 -14.1 -28.6 -16.1