WARNING: This spreadsheet contains rules of thumb and should be used for estimating only

Ventilation Rate, Sizing of Heating & Cooling Loads Psychrometric ChartDuct Sizing & Estimation of System Pressure Loss Psychrometric Calcs

Fan Laws, Changes to Fan Duty Conversions

Sizing Pressure Relief Outlets, Door Air Loss Natural Ventilation by Temp Diff.

Duct Weight & Flange Drilling Load Estimate Sheet

Pressure Loss Spreadsheet Date Plan Set Up

Sound Attenuation Spreadsheet U Values

Preliminary Pipe Sizing Hygrometric Sheet

Air Leakage Test Sheet Process

Module Temperature Noise Addition

Press Press

Press Press

Press Press

Press Press

Press Press

Press Press

Press Press

Press Press

Press Press

Press Press

HVAC CALC.

ENTER ANSWER

Module Width 4.00 m 0.055 supply airflowModule Length 11.00 m deg C 0.49 pick up from fanModule Height 3.00 m kW 0.04 typ. Fan power

Required ventilation 1.5 ac / hFan resistance ~ Est. 600 Pa

Required pressurisation 0 Pa 0.06 Extract airflow

Winter ambient min -3 deg C kW 0.87 heat loss infiltrationSummer ambient max 35 deg C kW 0.50 heat gain infiltration

10 deg C28 deg C

U-Value 5 kW 8.58 winter fabric lossEquipment gains 10 kW kW 1.73 summer fabric gain

Other Gains 5 kW kW 9.45kW 17.23

Branch / Duct volume 0.1195Duct velocity 4 m/s mm x mm 173 Square Duct

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m3/s

m3/s

Internal design LoInternal design Hi

W/m2 deg C

Winter Heating LoadSummer Cooling Load

m3/s

ENTER ANSWER

Air Volume 25.00 Square mm 1768 xor

Velocity 8.00 m/s Circular mm 1995

Velocity Pressure 38.4

Duct Loss / metre 0

Sum of "k" Factors 250.00

Duct Length 50.00 m System (approx.) loss 9615

ENTER

RECTANGULAR DUCT SIZE, mm 2132 x 2132

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m3/s

CIRCULAR EQUIVALENTS OF RECTANGULAR DUCTS

1768

Dia.

Pa

Pa

Pa

ANSWER

2406 mm dia.

ENTEROriginal System Data

Fan Volume 2.78 (If you don't know the fan power, it shouldFan Pressure 600 Pa be around………. 2.1 kW)

Fan Speed 1350 rpmFan Power 2 kW

78.0

CHANGE NEW

Fan Volume 2.78 Fan Pressure 600 PaFan Speed 1350 rpmFan Power 2.0 kW

440v / …. 3.4 Amps

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m3/s

Fan Effy.% = {Vol (m3/s) x Total Press. (Pa)} ÷ (Abs. Power (W) x 10)

m3/s

ENTER ANSWER

Airflow Volume 0.10 m/s 4.47 Velocity through opening

Required Pressurisation 50 Pa mm 150 x 150

Perimeter of door 5.90 m 0.069 Air loss through closed doorWidth of gap 2 (typ 2mm)

Room pressurisation 50 Pa

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m3/s

m3/s

Velocity through opening

Pressure relief outlet

Air loss through closed door

DUCTWORK PRESSURE LOSS CALCULATION

System: Duct size (mm) (or) Equiv. Volume Velocity Vp Fitting Length Loss

Ductwork Element W x H Dia Dia (mm) (m/s) (Pa) "k" (m) (Pa)

Supply Plenum Exit 250 x 250 282 0.350 5.60 18.8 4.30 80.9Duct 400 x 400 451 0.525 3.28 6.5 15.0 3.4Fire Damper 400 x 400 451 0.525 3.28 6.5 0.50 3.2Bend 400 x 400 451 0.525 3.28 6.5 0.35 2.3Bend 400 x 400 451 0.525 3.28 6.5 0.35 2.3Bend 400 x 400 451 0.525 3.28 6.5 0.35 2.3Bend 400 x 400 451 0.525 3.28 6.5 0.35 2.3Bend 400 x 400 451 0.525 3.28 6.5 0.35 2.3VCD 400 x 400 451 0.525 3.28 6.5 0.27 1.7Supply Grille OBD 400 x 400 451 0.525 3.28 6.5 0.52 3.4Supply Grille 400 x 400 451 0.525 3.28 6.5 1.50 9.7

xSupply Total 113.7Margin 10% 11.4

Total 125

ExhaustExhaust EC Grille 400 x 400 451 0.525 3.28 6.5 2.00 12.9Duct 300 x 300 339 0.525 5.83 20.4 4.2 4.0Pressure Relief Damper 300 x 300 339 0.525 5.83 20.4 2.30 47.0Fire Damper 300 x 300 339 0.525 5.83 20.4 0.20 4.1Bend 300 x 300 339 0.525 5.83 20.4 1.0 1.0Bend 300 x 300 339 0.525 5.83 20.4 1.0 1.0Bend 300 x 300 339 0.525 5.83 20.4 1.0 1.0Fire Damper 300 x 300 339 0.525 5.83 20.4 0.20 4.1Plenum Entry 300 x 300 339 0.525 5.83 20.4 0.33 6.7Plenum Outlet 450 x 200 339 0.525 5.83 20.4 0.23 4.7Duct 450 x 200 339 0.525 5.83 20.4 6.9 6.7

450 x 200 339 0.525 5.83 20.4 0.41 8.4450 x 200 339 0.525 5.83 20.4 0.41 8.4

Duct 350 x 250 334 0.525 6.00 21.6 11.9 12.4C/S (450x200) x (350x250) 350 x 250 334 0.525 6.00 21.6 0.02 0.4Bend 350 x 250 334 0.525 6.00 21.6 0.35 7.6Bend 350 x 250 334 0.525 6.00 21.6 0.35 7.6

350 x 250 334 0.525 6.00 21.6 0.18 3.9350 x 250 334 0.525 6.00 21.6 0.18 3.9

Extract Total 145.5Manual Entry:-Pressurisation (incl in PRD)Windage Factor (>10%)Margin 10% 15

Total 160

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(m3/s)

30o Bend30o Bend

45o Bend45o Bend

Psychrometric Chart<<<Back

CIBSE

TEXACO CAPTAINADDITIONAL ESP DRIVES FOR ESP SWITCHROOM

OPTION 1 - USINGSEAWATER COOLING COIL

EXISTING PRE-COOLERAIR ON AT 23OC/75%rhOFF AT 18OC/95%rh

DUCT GAIN = 2OCADDITIONAL COOLING COILAIR ON AT 20OCdb/18OC wbOFF AT 14OCdb/95%rh

DUCT GAIN =1OC. SUPPLY TO ROOM AT 15OC.

TEMP. RISE DUE TO EQUIPMENT 22kWHEAT GAIN = 3.46OC.

TEMP. RISE DUE TO NEW PANELS' 52.22kWHEAT GAIN = 8.22OC.

TEMP. RISE DUE TO EXISTING PANELS' 102kW HEAT GAIN = 16.68OC.

DISCHARGE TO ATMOSPHERE

COOLING LOAD = 5.25 x (51.5 - 39.3)/0.8255 = 77.6kW

ENTERFlange Drilling

Duct Width 150 Duct Backmark Remnant Pitches @ Holes /Duct Height 150 mm Side See Note See Note 150mm Bolts

OR Duct Dia. 200 mm 150 40 115 0 8Metal Thickness 3 mm 150 40 115 0 M12

Spool Length 60 m

Flanges: 12 NoAngle size 80 mm Duct Weight (Rectangular)

Flg. Thickness 5 mm Item Material Weight Total

kg kgDuct 0.108 846.7

Density of Material 7840 Flanges 0.0096 75.3 922.0(Mild Steel 7840 Duct Weight (Circular)(St/St 7900 Duct Dia. Area m2 Vol. m3 Weight kg

200 1.8857143 0.0056571 44.4

Duct Size 150 150 M6Flange length 310 310 M8

Backmark 40 40 M10Span 230 230 M12

150mm pitches 1 1covering 150 150

fill 40 40M8

Amended 150 pitches 0 0 M10Amended covering 0 0 M12

Amended fill 115 115

Answer 150 pitches 0 0Answer covering 0 0

Answer fill 115 115

Holes 4 4

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Backmark: Distance from the outer edge of flange to corner holeRemnant: Distance between corner hole and first pitch hole

m3

kg/m3

kg/m3)kg/m3)

Air Mix1 Q1 Q2 Q3

in Airflow 3.433 2.456 5.889Airflow 5.889 Mix % 58.30 41.l7 100 %

Sp Vol 0.85 Sp Enthalpy 46.00 59.80 #VALUE! KJ/kgHigh Low M.Content 0.0115 0.0100 #VALUE! kg/kg

Specific Enthalpy 129.40 99.98 KJ/kg Temperature 23.00 23.00 #VALUE!

Moisture Content 0.0367 0.0273 kg/kg

HEATING

Sensible Heating 56.46 kWHumidification 147.37 kWTotal Change 203.83 kWMoisture Added 0.0653 l/s

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m3/sm3/s

m3/kg

OC

Heating Cooling

LOAD ESTIMATE SHEET

JOB/REF No. ESTIMATED BY:- DATE:-

LOCATION:- CHECKED BY:- DATE:-

SHEET OF APPROVED BY:- DATE:-TRANSMITTED HEAT GAINS AND LOSSESITEM DESCRIPTION AREA, U WINTER HEAT SUMMER HEATNo. VALUE LOSS, W. GAIN, W.1 EXT. WALL GROSS. 400 - - - - -

2 EXT. GLASS. 30 21 0 7 03 EXT. WALL NETT. 370 0.6 21 4662 7 15544 INT. WALLS. 190 0.8 6 912 6 9125 INT. GLASS. 10 5.6 6 336 6 336

6 FLOOR. 200 0.36 21 1512 0 07 ROOF. 200 1.5 21 6300 7 2100

8 MISC. 0 0 0 0 0

9 TOTAL GAINS AND LOSSES, W. 13722 4902SOLAR HEAT GAINS

10 WALL. 370 0.6 43.6 21 22.6 501711 WALL. 40 0.6 27.5 21 6.5 15612 GLASS. 30 5.6 43.6 21 22.6 379713 GLASS. 0 014 ROOF. 200 1.5 43.2 21 22.2 666015 ROOFLIGHTS. 0 5.6 43.2 21 22.2 016 MISC. 0 0

17 TOTAL SOLAR HEAT GAINS, W. 15630BODY GAINS SENS., W. LAT., W. HEAT GAIN SUMMARY

18 NO. 24 x 100 2400 ITEM No. ITEM GAIN, W.19 NO. x 0 9 TRANSMITTANCE. 490220 NO. 24 x 50 1200 17 SOLAR. 15630

21 TOTAL BODY GAIN. 2400 1200 21 BODY. (SENSIBLE). 2400EQUIPMENT GAINS 28 EQUIPMENT. 13550

22 LIGHTING. 60 200 12000 31 INFILTRATION. 470623 SMALL MOTORS 350 1 350 32 TOTAL SENSIBLE. 4118824 LARGE MOTORS 600 2 1200 33 TOTAL LATENT. 120025 ELECTRICAL PLANT 0 34 TOTAL HEAT GAIN. 4238826 GAS PLANT 0 35 S.H.R.= (ITEM 32/ITEM 34) % 97.17%27 MISC. 0 36 11

28 TOTAL EQUIPMENT GAINS, W. 13550 37 10INFILTRATION GAINS 38 10

29 ac/h HEIGHT LENGTH WIDTH 39 3.5230 0.5 20 20 10 4706 41 8514

31 TOTAL INFILTRATION GAINS. 4706 42

4.21DESIGN DATASUMMER 43

0.36d.b. TEMPERATURE 28 21 24 X 0.015w.b. TEMPERATURE 44 FRESH AIR GAIN, W =

3049DEW POINT ITEM 43 x 1.21 x (To-Ti)

RELATIVE HUMIDITY 50% 50% COOLING LOAD, WENTHALPY ITEM 34 42388MOISTURE CONTENT ITEM 41 8514WINTER d.b. TEMP. 0 45 TOTAL COOLING LOAD, W. 50902

LATITUDE:- 46 EQUIV. COOLING LOAD, T.R. 14.47

DATE:- 24th Aug. TIME:- 12:00 Notes: No. of Air Changes per hour = 3.79WALL:- LIGHT MEDIUM DARK All Temperatures, U-Values and other Design DataROOF:- LIGHT MEDIUM DARK to be obtained from relevant C.I.B.S.E. Guide. GLAZING:- AWNINGS SHADE BARE All dimensions in metres.

-

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m2 TEMP DIFF OC TEMP DIFF OC

AREA, m2 U VALUE teo,oC. ti,oC. TEMP DIFF OC HEAT GAIN,

W.

d.b.SUPPLY AIR TEMP.OC

w.b. SUPPLY AIR TEMP.OCd.b. SUPPLY AIR TEMP. RISE OCPRELIMINARY S.A.V. (m3/s)DUCT GAIN = SAVx1.21x 2OC, W

S.A.V. INC. DUCT GAIN (ITEM 32 + ITEM 41)*1.21*ITEM 38

To, OC Ti, OC F.A REQ.=Occupancy.x m3/s/head.

ENTERImperial to Metric

cfm 29 0.014 ENTERgpm 33 2.50 l/s Pressure Pa

ft/min 1000 5.08 m/s 1000Btu/hr 50,000 14.654 kW

HP 1 0.735 kW readmph 21 33.79 km/h 1000knot 1 0.514 m/s 4.015 "wg

inches 1 25.4 mm 102 mm wgfeet 22 6.706 m 0.2953 "hg

sq. yards 23 19.231 7.518797 mm hglbs 2.2 0.998 kg 0.145 psi

gallon 1 4.55 litres 7.518797 torr" water 45 11210 Pa 10 m.bar

70 21.11 0.01 bar50 122

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m3/s

N/m2

m2

oF oCoC oF

Start Date: 22-Oct-01 Days freq. 1

Days long 13 M Tu W Th F Sa Su M Tu W Th F Sa1 2 3 4 5 6 7 1 2 3 4 5 631 1 2 3 4 5 6 7 8 9 10 11 12

Today's date is: 8-May-23 Day No >> 1 2 3 4 5 6 7 8 9 10 11 12 13

Ref

ACTIVITIES

Dat

e22

-Oct

-01

23-O

ct-0

1

24-O

ct-0

1

25-O

ct-0

1

26-O

ct-0

1

27-O

ct-0

1

28-O

ct-0

1

29-O

ct-0

1

30-O

ct-0

1

31-O

ct-0

1

1-N

ov-0

1

2-N

ov-0

1

3-N

ov-0

1

31 1 2 3 4 5 6 7 8 9 10 11 12

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Composite Structures With Air Gap Composite Structures Without Air Gap

Surface:- Wall Surface:- Wall(Enter description) (Enter description)

Material Thickness K value Material Thickness K value

(Enter description) (mm) (Enter description) (mm)1 Steel Cladding L1 5 50 1 Steel Cladding L1 5 502 Fibre Board Slabs L2 100 0.057 2 Fibre Board Slabs L2 100 0.0573 Air Gap L3 50 0.026 3 L3 0 14 Plasterboard L4 15 0.16 4 Plasterboard L4 15 0.16

U Value Heat Flow U Value Heat FlowHoriz. 0.243 Horiz. 0.495

Up 0.248 Up 0.503Down 0.244 Down 0.486

HEAT FLOW HEAT FLOWHORIZ. UP DOWN HORIZ. UP DOWN

Rsi 0.13 0.1 0.17 Rsi 0.13 0.1 0.17Rso 0.04 0.04 0.04 Rso 0.04 0.04 0.04

Rsi+Rso 0.17 0.14 0.21 Rsi+Rso 0.17 0.14 0.21R air gap 0.18 0.12 0.12 R air gap 0 0 0R total 0.52 0.4 0.54 R total 0.34 0.28 0.42L1 (m) 0.005 0.005 0.005 L1 (m) 0.005 0.005 0.005

K1 50 50 50 K1 50 50 50L2 (m) 0.1 0.1 0.1 L2 (m) 0.1 0.1 0.1

K2 0.057 0.057 0.057 K2 0.057 0.057 0.057L3 (m) 0.05 0.05 0.05 L3 (m) 0 0 0

K3 0.026 0.026 0.026 K3 1 1 1L4 (m) 0.015 0.015 0.015 L4 (m) 0.015 0.015 0.015

K4 0.16 0.16 0.16 K4 0.16 0.16 0.16N.B:- Enter 'k' from table below. N.B:- Enter 'k' from table below.Where no material is used enter L=0 & K=1. Where no material is used enter L=0 & K=1.

U-value =0.243 0.248 0.244

U-value =0.495 0.503 0.486

Walls RoofsBrick 0.84 Asphalt 0.9Dense Plaster 0.5 Concrete 1.4Lightweight Plaster 0.16 Lightw't Concrete 0.38Plasterboard 0.16 Dense Plaster 0.5Exp. Polystyrene 0.033 Lightweight Plaster 0.1Lightw't Concrete 0.38 Concrete 0.16Concrete 1.4 Phenolic Foam 0.038Concrete Block 0.19 Fibreboard 0.057Asbestos Sheet 0.36 Exp. Polystyrene 0.033Woodwool Slab 0.09 Tiles 0.84Glass Fibre 0.035 Roofing Felt 0.19Timber 0.14 Glass Fibre 0.035Weatherboarding 0.14 Asbestos Sheet 0.36Air 0.026 Slate 2

Miscellaneous MaterialsBitumen 0.85 Granite 2.5Carpet - woollen 0.055 Wood Chipboard 0.15Carpet Underlay 0.045 Woodwool Slab 0.11Corkboard 0.042 Water 0.6Glass Sheet 1.05 Seawater 0.58Gravel 0.3 Carbon Steel 50Hardboard 0.08 High Alloy Steel 15PVC Flooring 0.35 Fresh Snow 0.17Phenolic Foam 0.037 Compacted Snow 0.43

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CALCULATION OF THERMAL TRANSMITTANCE (U-VALUE) W/m 2oC)

(W/moC) (W/moC)

(W/m2oC) (W/m2oC)

GO TO 'k' Factors>>>

(W/m2oC) (W/m2oC)

Typical 'k' Factors for Various Materials (W/moC) :- Back to Top

1

Airflow 3.62

PROCESS ON PROCESS OFFSensible Cooling 42.3 kW

23 C (db) De-humidification 46.0 kW 14.8 C (db)80 % rh Energy Change 89.2 kW 95 % rh

Water Removed 0.02035 litres/s73.26797 kg/h

14.25 g/kg Moisture Content 9.51 g/kg0.8578 Specific Volume 0.827859.472 kJ/kg Specific Enthalpy 38.329 kJ/kg17.81 g/kg Saturation Moisture Content 10.01 g/kg

23.140 kJ/kg Specific Enthalpy Dry Air 14.080 kJ/kg28.08 Pa Saturation Vapour Pressure 15.98 Pa

HYGROMETRIC TABLES

DRY BULB RELATIVE MOISTURE SPECIFIC SPECIFIC SATURATED ENTHALPY SATURATED TEMP. HUMIDITY CONTENT VOLUME ENTHALPY MOISTURE OF DRY AIR VAPOUR

% kg/kg kJ/kg CONTENT, kg/kg kJ/kg PRESS, Pa

0 50 0.0019 0.7758 4.8310 0.003789 0.000 6.108

1 50 0.0020 0.7788 6.2016 0.004075 1.006 6.566

2 50 0.0022 0.7819 7.5965 0.004380 2.012 7.055

3 50 0.0024 0.7849 9.0182 0.004706 3.018 7.575

4 50 0.0025 0.7880 10.4666 0.005053 4.024 8.129

5 50 0.0027 0.7911 11.9431 0.005422 5.030 8.719

6 30 0.0017 0.7927 10.4852 0.005816 6.036 9.346

7 50 0.0031 0.7973 14.9916 0.006235 7.042 10.013

8 50 0.0033 0.8004 16.5663 0.006681 8.048 10.720

9 50 0.0036 0.8035 18.1766 0.007155 9.054 11.470

10 95 0.0073 0.8112 28.6139 0.007659 10.060 12.270

11 95 0.0078 0.8147 30.9100 0.008194 11.060 13.120

12 50 0.0044 0.8131 23.2428 0.008763 12.070 14.020

13 95 0.0089 0.8219 35.7716 0.009367 13.080 14.970

14 95 0.0095 0.8255 38.3292 0.010010 14.080 15.980

15 50 0.0054 0.8230 28.7325 0.010700 15.090 17.040

16 50 0.0057 0.8263 30.6478 0.011410 16.100 18.170

17 50 0.0061 0.8296 32.6168 0.012170 17.100 19.360

18 50 0.0065 0.8330 34.6595 0.012980 18.110 20.630

19 50 0.0069 0.8365 36.7560 0.013840 19.110 21.960

20 80 0.0118 0.8459 50.2000 0.014750 20.110 23.370

21 50 0.0079 0.8435 41.1603 0.015710 21.130 24.860

22 50 0.0084 0.8470 43.4608 0.016730 22.130 26.430

23 50 0.0089 0.8506 45.8478 0.017810 23.140 28.080

24 50 0.0095 0.8543 48.3013 0.018950 24.140 29.830

25 60 0.0121 0.8607 55.9948 0.020160 25.150 31.660

26 50 0.0107 0.8617 53.4833 0.021430 26.160 33.600

27 50 0.0114 0.8655 56.2045 0.022780 27.160 35.640

28 50 0.0121 0.8694 59.0378 0.024210 28.170 37.790

29 50 0.0129 0.8733 61.9730 0.025720 29.180 40.050

30 50 0.0137 0.8773 65.0003 0.027310 30.180 42.420

31 50 0.0145 0.8813 68.1650 0.029000 31.190 44.920

32 50 0.0154 0.8855 71.4318 0.030770 32.200 47.540

33 50 0.0163 0.8897 74.8288 0.032650 33.200 50.290

34 50 0.0173 0.8940 78.3633 0.034630 34.210 53.190

35 75 0.0275 0.9112 105.4661 0.036730 35.220 56.220

36 50 0.0195 0.9028 85.8685 0.038940 36.220 59.400

37 50 0.0206 0.9074 89.8620 0.041280 37.230 62.740

38 50 0.0219 0.9121 94.0085 0.043740 38.240 66.240

39 50 0.0232 0.9169 98.3362 0.046350 39.240 69.910

40 50 0.0246 0.9218 102.8525 0.049100 40.250 73.750

41 50 0.0260 0.9268 107.5600 0.052000 41.260 77.780

42 50 0.0275 0.9319 112.3850 0.055000 42.260 81.990

43 50 0.0292 0.9372 117.6025 0.058300 43.270 86.400

44 50 0.0309 0.9426 122.9858 0.061730 44.280 91.000

45 50 0.0327 0.9482 128.5885 0.065340 45.280 95.820

m3/s

m3/kg m3/kg

HYGROMETRIC DATA (0 oC to 45 oC)

oC. m3/kg

FOR ANY GIVEN TEMPERATURE, ENTER A HUMIDITY VALUE TO DETERMINE RELEVANT PSYCHROMETRIC DATA

###

Energy Change 85 kW

-855.25 kW Total

Inlet Condition Fan Cooling Outlet Condition###

20 C (db) 14 C (db)84 % rh 95 % rh

kW-38.3 Sensible Cooling

0.01239 kg/kg Moisture Content -46.71 Latent Cooling 0.00951 kg/kg0.84664 Specific Volume 0.82554

51.70450 kJ/kg Specific Enthalpy 38.32922 kJ/kg

0.01475 kg Specific Moisture Conteny###

-58.88 kg/h 0.01001 kg20.11000 kJ/kg Enthalpy Dry air Water Removed 14.08000 kJ/kg

23.37000 Pa Saturated Vapour Pressure 15.98000 Pa

Moisture content At inlet 0.076830 kgMoisture content At outlet 0.060475 kg

Moisture change -0.016355 kg-58.88 kg/h

Sensible change -38.35 kWLatent change -46.71 kW

Total change -85 kW

Back

m3/s

m3/kg m3/kg

HVAC Process

Dry Bulb Moisture Specific Specific Saturated Enthalpy SATURATED Temp. R.H. Content Volume Enthalpy Moisture of dry air VAPOUR

% kg/kg kJ/kg Content kg kJ/kg PRESS, Pa

0 50 0.0019 0.7758 4.8310 0.003789 0.000 6.1081 50 0.0020 0.7788 6.2016 0.004075 1.006 6.5662 50 0.0022 0.7819 7.5965 0.004380 2.012 7.0553 50 0.0024 0.7849 9.0182 0.004706 3.018 7.575

4 50 0.0025 0.7880 10.4666 0.005053 4.024 8.1295 50 0.0027 0.7911 11.9431 0.005422 5.030 8.7196 30 0.0017 0.7927 10.4852 0.005816 6.036 9.3467 50 0.0031 0.7973 14.9916 0.006235 7.042 10.0138 50 0.0033 0.8004 16.5663 0.006681 8.048 10.7209 50 0.0036 0.8035 18.1766 0.007155 9.054 11.470

10 50 0.0038 0.8067 19.8252 0.007659 10.060 12.27011 50 0.0041 0.8099 21.5074 0.008194 11.060 13.12012 50 0.0044 0.8131 23.2428 0.008763 12.070 14.02013 50 0.0047 0.8164 25.0229 0.009367 13.080 14.97014 50 0.0050 0.8197 26.8427 0.010010 14.080 15.98015 50 0.0054 0.8230 28.7325 0.010700 15.090 17.04016 50 0.0057 0.8263 30.6478 0.011410 16.100 18.17017 50 0.0061 0.8296 32.6168 0.012170 17.100 19.36018 50 0.0065 0.8330 34.6595 0.012980 18.110 20.63019 50 0.0069 0.8365 36.7560 0.013840 19.110 21.96020 78 0.0115 0.8455 49.4478 0.014750 20.110 23.37021 50 0.0079 0.8435 41.1603 0.015710 21.130 24.86022 50 0.0084 0.8470 43.4608 0.016730 22.130 26.43023 50 0.0089 0.8506 45.8478 0.017810 23.140 28.08024 50 0.0095 0.8543 48.3013 0.018950 24.140 29.83025 50 0.0101 0.8580 50.8540 0.020160 25.150 31.66026 50 0.0107 0.8617 53.4833 0.021430 26.160 33.60027 50 0.0114 0.8655 56.2045 0.022780 27.160 35.64028 50 0.0121 0.8694 59.0378 0.024210 28.170 37.79029 50 0.0129 0.8733 61.9730 0.025720 29.180 40.05030 50 0.0137 0.8773 65.0003 0.027310 30.180 42.42031 50 0.0145 0.8813 68.1650 0.029000 31.190 44.92032 50 0.0154 0.8855 71.4318 0.030770 32.200 47.54033 50 0.0163 0.8897 74.8288 0.032650 33.200 50.29034 50 0.0173 0.8940 78.3633 0.034630 34.210 53.19035 50 0.0184 0.8984 82.0508 0.036730 35.220 56.22036 50 0.0195 0.9028 85.8685 0.038940 36.220 59.40037 50 0.0206 0.9074 89.8620 0.041280 37.230 62.74038 50 0.0219 0.9121 94.0085 0.043740 38.240 66.24039 50 0.0232 0.9169 98.3362 0.046350 39.240 69.91040 50 0.0246 0.9218 102.8525 0.049100 40.250 73.75041 50 0.0260 0.9268 107.5600 0.052000 41.260 77.78042 50 0.0275 0.9319 112.3850 0.055000 42.260 81.99043 50 0.0292 0.9372 117.6025 0.058300 43.270 86.40044 50 0.0309 0.9426 122.9858 0.061730 44.280 91.00045 50 0.0327 0.9482 128.5885 0.065340 45.280 95.820

HYGROMETRIC TABLES

oC. m3/kg

FOR ANY GIVEN TEMPERATURE, ENTER A HUMIDITY VALUE TO DETERMINE RELEVANT PSYCHROMETRIC DATA

Specific Enthalpy Volume Sp. Vol Air on Air off

kJ/kg kjJ/kg db % db % kW20 54 1 0.883 10 50% 35 20% -38.505 1

20 30 1 0.847 10 50% 25 10% -11.806 2

116 76 1 0.871 40 60% 25 100% 45.924 3

79 39 1 0.839 45 20% 20 50% 47.676 4

79 65 1 0.877 45 20% 30 50% 15.964 5

56 44 1 0.866 42 10% 30 20% 13.857 644 56 1 0.866 30 20% 42 10% -13.857

m3/s m3/kg

REV. NO. A B C D Sheet No of

SOUND ATTENUATION CALC. BY Job No.JOB: SYSTEM: CHECKED Doc. No.

CALCULATIONS DATA OCTAVE BAND MID FREQUENCY, Hz NO.SOURCE 63 125 250 500 1000 2000 4000 8000 OFF

1 MAXIMUM SOUND PRESSURE LEVEL = NR 40 TABLE 1 67 57 49 44 40 37 35 332 ROOM AND TERMINAL EFFECT FIG.1 3 3 3 3 3 3 3 33 ALLOWANCE FOR END REFLECTION TABLE 2 9 5 1 0 0 0 0 04 DUCTWORK ATTENUATION-TERMINAL TO CHECKPOINT TABLE 3 0.3 0.15 0.03 0 0 0 0 0 25

(Duct length given in metres against Table 3 data) 7.5 3.75 0.75 0 0 0 0 05 ELBOW ATTENUATION-TERMINAL TO CHECKPOINT TABLE 4 0.3 0.15 0.03 0 0 0 0 0 6

(No. of bends indicated against Table 4 data) 1.8 0.9 0.18 0 0 0 0 06 PWL SPLIT-BRANCH TO TERMINALS TABLE 5 6 6 6 6 6 6 6 67 PWL SPLIT-MAIN DUCT TO BRANCH TABLE 6 5 5 5 5 5 5 5 58 CALCULATED PWL AT CHECKPOINT 99.3 80.65 64.93 58 54 51 49 479 DEDUCT 3dB SAFETY FACTOR -3 -3 -3 -3 -3 -3 -3 -3

10 PERMISSIBLE PWL AT CHECKPOINT 96.3 77.65 61.93 55 51 48 46 4411 POWER LEVEL OF NOISE SOURCE AT CHECKPOINT Manfr's Data 91 83 77 73 70 68 66 6412 DYNAMIC INSERTION LOSS REQUIRED -5.3 5.35 15.07 18 19 20 20 20

TABLE 1 NOISE LEVELS FOR SPACES, dB. dBA LOCATION: NR20 51 39 31 24 20 17 14 13 30

NR25 55 44 35 29 25 22 20 18 35240 NR30 59 48 40 34 30 27 25 23 39

Length, m Width, m Height, m 60 NR35 63 52 45 39 35 32 30 28 4412 5 4 256 NR40 67 57 49 44 40 37 35 33 48

NR45 71 61 54 48 45 42 40 38 53NR50 75 65 59 53 50 47 45 43 58

MAX. PERMISSIBLE NOISE LEVEL (NR) = 40 NR55 79 70 63 58 55 52 50 49 62NR60 83 74 68 63 60 57 55 54 67

NO.of TERMINALS = 8 NR65 87 78 72 68 65 62 61 59 72NR70 91 83 77 73 70 68 66 64 77

ROOM CHARACTERISTICSOFT AVER'GE HARD TABLE 2 ATTENUATION DUE TO END

X DUCT EQUIV REFLECTION AT DUCT OPENINGS,dBDIA, mm. (Select nearest applicable line)

125 13 9 5 1 0 0 0 0250 9 5 1 0 0 0 0 0500 5 1 0 0 0 0 0 01000 1 0 0 0 0 0 0 0

TABLE 3 ATTENUATION OF UNLINEDDUCT SIZE SHEET METAL DUCTS, dB / metre.150 X 150 0.6 0.45 0.3 0 0 0 0 0600 X 600 0.6 0.3 0.15 0 0 0 0 0850 X 850 0.3 0.15 0.03 0 0 0 0 0<300 Dia. 0.1 0.1 0 0 0 0 0 0>300 Dia. 0 0 0 0 0 0 0 0

TABLE 4 ATTENUATION OF UNLINEDDUCT DIA. SHEET METAL BENDS, dB.OR WIDTH. (Select nearest applicable line)

250 Max. 0 1.2.4 2.5.8 3.4.5 3 3500 Max. 0 1.2.4 2.5.8 3.4.5 3 3 3

1000 Max. 0 1.2.4 2.5.8 3.4.5 3 3 3 32000 Max. 1.2.4 2.5.8 3.4.5 3 3 3 3 3

Where 3-values are shown, use 1st for round bends,2nd for sq. bends with vanes, 3rd for bends with no vanes.

TABLE 5 PWL SPLIT-BRANCH TO TERMINALSNo. Terminals 1 2 3 4 8 10 20 40 100dB Allowance 0 3 5 6 9 10 13 16 20

TABLE 6 PWL SPLIT-MAIN DUCT TO BRANCH dB to add to AREA OF BRANCH EXPRESSEDbranch PWL AS % OF MAIN BRANCH AREAto give main 0.2 0.5 1 2 5 10 20 50duct PWL. 27 23 20 17 13 10 7 3

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TOTAL 1 to 7

11 minus 10

DESIGN DATA

ROOM DIMENSIONS: Volume, m3 =Floor Area, m2 =Surface Area, m2 =

GALVANISED PIPES

Max. Equivalent Equivalent HWS Diameter, Max. Water kW Rated Output Simultaneous Flow Rate Pressure Return Dia. mm. Flow Rate, l/s. Demand Units l/s. Drop, Pa. mm

10 0.03 0.6 1.3 215 0.07 1.5 3 4.5 10 0.06 200 1520 0.16 3.4 6.7 10 25 0.15 220 15

25 0.35 7 15 22 50 0.3 250 2032 0.71 15 30 45 150 0.6 210 2040 1.0 20 40 60 250 0.9 200 25

50 2.0 40 80 120 500 1.5 150 3265 4.0 85 170 250 1500 3.6 210 3280 6.0 125 250 375 2500 5.5 200 40100 13.0 275 550 800 5000 10.0 160 50

150 36.0 750 1500 2250200 90.0 1850 3700 5500 Basin or Bidet ( Hot & Cold) 3 1.5 ea

Sink ( Hot & Cold) 15 7.5 each Bath ( Hot & Cold) 20 10 each

1) For LPHW heating, typical Shower ( Hot & Cold) 8 4 ea

WC (Cold only) 8 only

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BLACK MILD STEEL PIPE SIZES FOR VARIOUS kW DUTIES. FOR HWS AND CWS SYSTEMS

T=5oC. T=10oC. T=15oC.

TYPICAL PRACTICAL DEMAND UNITS

NOTE T= 82oC - 71oC = 11oC.

2) For fan coil unit cooling, typical T= 12oC - 7oC = 5oC.

JOB NO. MODULE INTEGRITY LOCATION TEST RESULTS DATE

TEST BYWITNESS

Module / Area Tested: Control Room

The following data is used to calculate the actual leakage rate for the module

Allowable Leakage Rate = 0.20 air changes per hour (ac/h)

Volume of Module = 548.00

Maximum Permissible Supply (Leakage) Air Volume = 109.60 (Based on 0 ac/h) (i.e. 0.030

MEASURED RESULTS

Max Permitted Leakage Rate for Control Room = 109.60

Leakage Rate During Pressurisation = 110.40

Leakage Rate During Depressurisation = 108.20

Average Measured Air Leakage Rate = 109.30

Final Test Result PASS

Comments:

m3

m3/hm3/s)

m3/h

m3/h

m3/h

m3/h

Accommodation Modulelength 15 mbreadth 15 mheight 30.25 m

Surface Area (A) 2265Enclosed Volume 6806.25

U 0.3(initial) Ti 24

To 35Gains 24 kW (kJ/s)

Temp @ 60 mins 36.01

826 Joules will raise 1 1 deg C826 Joules will raise 6806.25 0.0001469 deg C24 (Available Heat input Joules / second)34 (Seconds to raise air temp. by 1deg C.)0.6 (Minutes to raise air temp. by 1deg C.)

Elapsed Module heat Surplus Module Time Loss Energy Temp.

Minutes kJ kJ0 241 -448.47 1888.47 24.232 -439.04 1879.04 24.463 -429.66 1869.66 24.694 -420.33 1860.33 24.925 -411.04 1851.04 25.146 -401.80 1841.80 25.377 -392.61 1832.61 25.598 -383.46 1823.46 25.829 -374.36 1814.36 26.0410 -365.30 1805.30 26.2611 -356.29 1796.29 26.4812 -347.33 1787.33 26.7013 -338.40 1778.40 26.9214 -329.53 1769.53 27.1315 -320.69 1760.69 27.3516 -311.90 1751.90 27.5617 -303.16 1743.16 27.7818 -294.46 1734.46 27.9919 -285.80 1725.80 28.2020 -277.19 1717.19 28.4121 -268.61 1708.61 28.6222 -260.08 1700.08 28.8323 -251.60 1691.60 29.0424 -243.15 1683.15 29.2425 -234.75 1674.75 29.4526 -226.39 1666.39 29.6527 -218.07 1658.07 29.8528 -209.80 1649.80 30.0629 -201.56 1641.56 30.2630 -193.37 1633.37 30.4631 -185.21 1625.21 30.6632 -177.10 1617.10 30.8533 -169.03 1609.03 31.0534 -161.00 1601.00 31.2535 -153.01 1593.01 31.4436 -145.05 1585.05 31.6437 -137.14 1577.14 31.8338 -129.27 1569.27 32.0239 -121.44 1561.44 32.2140 -113.64 1553.64 32.4041 -105.89 1545.89 32.5942 -98.17 1538.17 32.7843 -90.49 1530.49 32.9744 -82.85 1522.85 33.1545 -75.25 1515.25 33.3446 -67.69 1507.69 33.5247 -60.16 1500.16 33.7148 -52.67 1492.67 33.8949 -45.22 1485.22 34.0750 -37.81 1477.81 34.2551 -30.43 1470.43 34.4352 -23.09 1463.09 34.6153 -15.79 1455.79 34.7954 -8.52 1448.52 34.9755 -1.29 1441.29 35.1456 5.90 1434.10 35.3257 13.06 1426.94 35.50

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m2

m3

W/m2oCoCoC

m3 air bym3 air by

oC

0.00

5.00

10.00

15.00

20.00

25.00

30.00

35.00

40.00

Minutes

Mod

ule

Tem

p (C

)

58 20.19 1419.81 35.6759 27.27 1412.73 35.8460 34.33 1405.67 36.01

Accommodation Modulelength 15 mbreadth 15 mheight 30.25 m

Surface Area (A) 2265 m2Enclosed Volume 6806.25 m3

U 0.3 w/m2degC(initial) Ti 24 degC

To 10 degCGains 58.35 kW (kj/s)

ToModule heat Surplus Module heat Surplus 5

Loss Energy Loss Energykj kj kj kj

978.48 2522.52 774.63 2726.37991.07 2509.93 788.24 2712.76

1003.60 2497.40 801.78 2699.221016.07 2484.93 815.25 2685.751028.47 2472.53 828.66 2672.341040.81 2460.19 842.00 2659.001053.09 2447.91 855.27 2645.731065.31 2435.69 868.48 2632.521077.47 2423.53 881.62 2619.381089.57 2411.43 894.70 2606.301101.61 2399.39 907.71 2593.291113.58 2387.42 920.65 2580.351125.50 2375.50 933.53 2567.471137.36 2363.64 946.35 2554.651149.16 2351.84 959.10 2541.901160.90 2340.10 971.79 2529.211172.58 2328.42 984.41 2516.59

14

7 1013

1619

2225

2831

3437

4043

4649

5255

5861

0

5

10

15

20

25

30

35

40

45

50

01530

Minutes

(Ti)

Tem

p in

side

(To) Temp Outside

1184.20 2316.80 996.98 2504.021195.77 2305.23 1009.48 2491.521207.27 2293.73 1021.91 2479.091218.72 2282.28 1034.29 2466.711230.12 2270.88 1046.60 2454.401241.45 2259.55 1058.85 2442.151252.73 2248.27 1071.04 2429.961263.95 2237.05 1083.17 2417.831275.12 2225.88 1095.24 2405.761286.23 2214.77 1107.25 2393.751297.29 2203.71 1119.20 2381.801308.29 2192.71 1131.09 2369.911319.23 2181.77 1142.92 2358.081330.12 2170.88 1154.69 2346.311340.96 2160.04 1166.40 2334.601351.74 2149.26 1178.06 2322.941362.47 2138.53 1189.65 2311.351373.15 2127.85 1201.19 2299.811383.77 2117.23 1212.67 2288.331394.34 2106.66 1224.09 2276.911404.85 2096.15 1235.46 2265.541415.31 2085.69 1246.77 2254.231425.73 2075.27 1258.02 2242.981436.09 2064.91 1269.22 2231.781446.39 2054.61 1280.36 2220.641456.65 2044.35 1291.44 2209.561466.85 2034.15 1302.47 2198.531477.01 2023.99 1313.44 2187.561487.11 2013.89 1324.36 2176.641497.16 2003.84 1335.23 2165.771507.17 1993.83 1346.04 2154.961517.12 1983.88 1356.80 2144.201527.02 1973.98 1367.50 2133.501536.88 1964.12 1378.15 2122.851546.68 1954.32 1388.75 2112.251556.44 1944.56 1399.29 2101.711566.14 1934.86 1409.78 2091.221575.80 1925.20 1420.22 2080.781585.41 1915.59 1430.61 2070.391594.97 1906.03 1440.94 2060.061604.49 1896.51 1451.23 2049.771613.95 1887.05 1461.46 2039.541623.37 1877.63 1471.64 2029.36

Module heat Surplus Module heat Surplus Module heat Surplus Module heatLoss Energy Loss Energy Loss Energy

kj kj kj kj kj kj

570.78 2930.22 366.93 3134.07 163.08 3337.92585.41 2915.59 382.57 3118.43 179.74 3321.26599.96 2901.04 398.14 3102.86 196.32 3304.68614.44 2886.56 413.63 3087.37 212.82 3288.18628.85 2872.15 429.04 3071.96 229.23 3271.77643.19 2857.81 444.38 3056.62 245.56 3255.44657.45 2843.55 459.63 3041.37 261.81 3239.19671.65 2829.35 474.81 3026.19 277.98 3223.02685.77 2815.23 489.92 3011.08 294.07 3206.93699.82 2801.18 504.95 2996.05 310.08 3190.92713.81 2787.19 519.91 2981.09 326.01 3174.99727.72 2773.28 534.79 2966.21 341.86 3159.14741.56 2759.44 549.59 2951.41 357.63 3143.37755.34 2745.66 564.33 2936.67 373.32 3127.68769.04 2731.96 578.99 2922.01 388.93 3112.07782.68 2718.32 593.57 2907.43 404.46 3096.54796.25 2704.75 608.08 2892.92 419.92 3081.08

14

7 1013

1619

2225

2831

3437

4043

4649

5255

5861

0

5

10

15

20

25

30

35

40

45

50

01530

Minutes

(Ti)

Tem

p in

side

(To) Temp Outside

809.75 2691.25 622.53 2878.47 435.30 3065.70823.18 2677.82 636.89 2864.11 450.60 3050.40836.55 2664.45 651.19 2849.81 465.83 3035.17849.85 2651.15 665.42 2835.58 480.98 3020.02863.09 2637.91 679.57 2821.43 496.06 3004.94876.25 2624.75 693.65 2807.35 511.06 2989.94889.36 2611.64 707.67 2793.33 525.98 2975.02902.39 2598.61 721.61 2779.39 540.83 2960.17915.36 2585.64 735.49 2765.51 555.61 2945.39928.27 2572.73 749.29 2751.71 570.31 2930.69941.11 2559.89 763.03 2737.97 584.94 2916.06953.89 2547.11 776.69 2724.31 599.50 2901.50966.61 2534.39 790.29 2710.71 613.98 2887.02979.26 2521.74 803.82 2697.18 628.39 2872.61991.84 2509.16 817.29 2683.71 642.73 2858.27

1004.37 2496.63 830.68 2670.32 657.00 2844.001016.83 2484.17 844.01 2656.99 671.19 2829.811029.23 2471.77 857.28 2643.72 685.32 2815.681041.57 2459.43 870.47 2630.53 699.38 2801.621053.85 2447.15 883.60 2617.40 713.36 2787.641066.06 2434.94 896.67 2604.33 727.28 2773.721078.22 2422.78 909.67 2591.33 741.12 2759.881090.31 2410.69 922.60 2578.40 754.90 2746.101102.35 2398.65 935.48 2565.52 768.61 2732.391114.32 2386.68 948.28 2552.72 782.24 2718.761126.23 2374.77 961.02 2539.98 795.82 2705.181138.09 2362.91 973.70 2527.30 809.32 2691.681149.88 2351.12 986.32 2514.68 822.76 2678.241161.62 2339.38 998.87 2502.13 836.12 2664.881173.30 2327.70 1011.36 2489.64 849.43 2651.571184.91 2316.09 1023.79 2477.21 862.66 2638.341196.48 2304.52 1036.15 2464.85 875.83 2625.171207.98 2293.02 1048.46 2452.54 888.94 2612.061219.43 2281.57 1060.70 2440.30 901.98 2599.021230.81 2270.19 1072.88 2428.12 914.95 2586.051242.15 2258.85 1085.00 2416.00 927.86 2573.141253.42 2247.58 1097.06 2403.94 940.70 2560.301264.64 2236.36 1109.06 2391.94 953.48 2547.521275.81 2225.19 1121.00 2380.00 966.20 2534.801286.91 2214.09 1132.88 2368.12 978.85 2522.151297.96 2203.04 1144.70 2356.30 991.44 2509.561308.96 2192.04 1156.47 2344.53 1003.97 2497.031319.90 2181.10 1168.17 2332.83 1016.43 2484.57

Module heat Surplus Module heat Surplus Module heat SurplusLoss Energy Loss Energy Loss Energy

kj kj kj kj kj kj

-40.77 3541.77 -244.62 3745.62 -448.47 3949.47-23.09 3524.09 -225.92 3726.92 -428.76 3929.76-5.50 3506.50 -207.32 3708.32 -409.14 3910.1412.00 3489.00 -188.81 3689.81 -389.62 3890.6229.42 3471.58 -170.39 3671.39 -370.20 3871.2046.75 3454.25 -152.06 3653.06 -350.88 3851.8863.99 3437.01 -133.83 3634.83 -331.65 3832.6581.15 3419.85 -115.68 3616.68 -312.52 3813.5298.22 3402.78 -97.63 3598.63 -293.48 3794.48

115.21 3385.79 -79.67 3580.67 -274.54 3775.54132.11 3368.89 -61.79 3562.79 -255.69 3756.69148.92 3352.08 -44.01 3545.01 -236.94 3737.94165.66 3335.34 -26.31 3527.31 -218.28 3719.28182.31 3318.69 -8.71 3509.71 -199.72 3700.72198.87 3302.13 8.81 3492.19 -181.24 3682.24215.35 3285.65 26.25 3474.75 -162.86 3663.86231.76 3269.24 43.59 3457.41 -144.57 3645.57

248.07 3252.93 60.85 3440.15 -126.38 3627.38264.31 3236.69 78.02 3422.98 -108.27 3609.27280.47 3220.53 95.11 3405.89 -90.25 3591.25296.55 3204.45 112.11 3388.89 -72.33 3573.33312.54 3188.46 129.03 3371.97 -54.49 3555.49328.46 3172.54 145.86 3355.14 -36.74 3537.74344.29 3156.71 162.61 3338.39 -19.08 3520.08360.05 3140.95 179.27 3321.73 -1.51 3502.51375.73 3125.27 195.85 3305.15 15.97 3485.03391.33 3109.67 212.35 3288.65 33.37 3467.63406.85 3094.15 228.77 3272.23 50.68 3450.32422.30 3078.70 245.10 3255.90 67.90 3433.10437.67 3063.33 261.35 3239.65 85.04 3415.96452.96 3048.04 277.52 3223.48 102.09 3398.91468.17 3032.83 293.62 3207.38 119.06 3381.94483.31 3017.69 309.63 3191.37 135.94 3365.06498.38 3002.62 325.56 3175.44 152.74 3348.26513.36 2987.64 341.41 3159.59 169.45 3331.55528.28 2972.72 357.18 3143.82 186.08 3314.92543.12 2957.88 372.87 3128.13 202.63 3298.37557.88 2943.12 388.49 3112.51 219.09 3281.91572.57 2928.43 404.02 3096.98 235.48 3265.52587.19 2913.81 419.48 3081.52 251.78 3249.22601.74 2899.26 434.87 3066.13 268.00 3233.00616.21 2884.79 450.17 3050.83 284.13 3216.87630.61 2870.39 465.40 3035.60 300.19 3200.81644.94 2856.06 480.55 3020.45 316.17 3184.83659.19 2841.81 495.63 3005.37 332.07 3168.93673.38 2827.62 510.63 2990.37 347.89 3153.11687.49 2813.51 525.56 2975.44 363.62 3137.38701.54 2799.46 540.41 2960.59 379.29 3121.71715.51 2785.49 555.19 2945.81 394.87 3106.13729.42 2771.58 569.89 2931.11 410.37 3090.63743.25 2757.75 584.53 2916.47 425.80 3075.20757.02 2743.98 599.08 2901.92 441.15 3059.85770.71 2730.29 613.57 2887.43 456.43 3044.57784.34 2716.66 627.98 2873.02 471.62 3029.38797.90 2703.10 642.32 2858.68 486.75 3014.25811.40 2689.60 656.59 2844.41 501.79 2999.21824.82 2676.18 670.79 2830.21 516.76 2984.24838.18 2662.82 684.92 2816.08 531.66 2969.34851.47 2649.53 698.98 2802.02 546.48 2954.52864.70 2636.30 712.96 2788.04 561.23 2939.77

Minutes 0 50 24 241 24.31 24.332 24.62 24.673 24.92 25.004 25.23 25.335 25.53 25.656 25.83 25.987 26.13 26.308 26.43 26.629 26.72 26.94

10 27.02 27.2611 27.31 27.5812 27.61 27.9013 27.90 28.2114 28.19 28.5215 28.47 28.8416 28.76 29.15

17 29.05 29.4518 29.33 29.7619 29.61 30.0720 29.89 30.3721 30.17 30.6722 30.45 30.9723 30.73 31.2724 31.00 31.5725 31.28 31.8626 31.55 32.1627 31.82 32.4528 32.09 32.7429 32.36 33.0330 32.63 33.3231 32.89 33.6132 33.16 33.9033 33.42 34.1834 33.68 34.4635 33.94 34.7436 34.20 35.0237 34.46 35.3038 34.71 35.5839 34.97 35.8640 35.22 36.1341 35.48 36.4042 35.73 36.6843 35.98 36.9544 36.23 37.2245 36.48 37.4846 36.72 37.7547 36.97 38.0248 37.21 38.2849 37.45 38.5450 37.70 38.8051 37.94 39.0652 38.18 39.3253 38.41 39.5854 38.65 39.8355 38.89 40.0956 39.12 40.3457 39.35 40.6058 39.59 40.8559 39.82 41.1060 40.05 41.34

10 15 20 25 30 3524 24 24 24 24 24

24.36 24.38 24.41 24.43 24.46 24.4824.72 24.77 24.82 24.87 24.91 24.9625.07 25.15 25.22 25.29 25.37 25.4425.42 25.52 25.62 25.72 25.82 25.9225.78 25.90 26.02 26.15 26.27 26.3926.13 26.27 26.42 26.57 26.72 26.8726.47 26.65 26.82 26.99 27.16 27.3326.82 27.02 27.21 27.41 27.61 27.8027.17 27.39 27.61 27.83 28.05 28.2727.51 27.75 28.00 28.24 28.48 28.7327.85 28.12 28.38 28.65 28.92 29.1928.19 28.48 28.77 29.06 29.35 29.6528.53 28.84 29.16 29.47 29.79 30.1028.86 29.20 29.54 29.88 30.22 30.5529.20 29.56 29.92 30.28 30.64 31.0129.53 29.92 30.30 30.68 31.07 31.45

29.86 30.27 30.68 31.08 31.49 31.9030.19 30.62 31.05 31.48 31.91 32.3430.52 30.97 31.43 31.88 32.33 32.7930.85 31.32 31.80 32.27 32.75 33.2331.17 31.67 32.17 32.67 33.16 33.6631.49 32.01 32.54 33.06 33.58 34.1031.81 32.36 32.90 33.44 33.99 34.5332.13 32.70 33.27 33.83 34.40 34.9632.45 33.04 33.63 34.22 34.80 35.3932.77 33.38 33.99 34.60 35.21 35.8233.08 33.72 34.35 34.98 35.61 36.2433.40 34.05 34.70 35.36 36.01 36.6733.71 34.38 35.06 35.74 36.41 37.0934.02 34.72 35.41 36.11 36.81 37.5034.33 35.05 35.76 36.48 37.20 37.9234.64 35.37 36.11 36.85 37.59 38.3334.94 35.70 36.46 37.22 37.99 38.7535.24 36.03 36.81 37.59 38.37 39.1635.55 36.35 37.15 37.96 38.76 39.5635.85 36.67 37.50 38.32 39.15 39.9736.15 36.99 37.84 38.68 39.53 40.3736.45 37.31 38.18 39.04 39.91 40.7836.74 37.63 38.52 39.40 40.29 41.1837.04 37.95 38.85 39.76 40.67 41.5737.33 38.26 39.19 40.11 41.04 41.9737.62 38.57 39.52 40.47 41.42 42.3637.91 38.88 39.85 40.82 41.79 42.7538.20 39.19 40.18 41.17 42.16 43.1438.49 39.50 40.51 41.52 42.52 43.5338.78 39.81 40.83 41.86 42.89 43.9239.06 40.11 41.16 42.21 43.26 44.3039.35 40.41 41.48 42.55 43.62 44.6939.63 40.72 41.80 42.89 43.98 45.0739.91 41.02 42.12 43.23 44.34 45.4440.19 41.32 42.44 43.57 44.69 45.8240.47 41.61 42.76 43.90 45.05 46.2040.74 41.91 43.07 44.24 45.40 46.5741.02 42.20 43.39 44.57 45.75 46.9441.29 42.50 43.70 44.90 46.10 47.3141.57 42.79 44.01 45.23 46.45 47.6841.84 43.08 44.32 45.56 46.80 48.0442.11 43.37 44.63 45.88 47.14 48.4042.37 43.65 44.93 46.21 47.49 48.7742.64 43.94 45.24 46.53 47.83 49.13

Airflow due to temperature difference (CIBSE A4-6)Enter

40 A1 0.036 Area of top openingA1 A3 A3 0.080 Area of top opening

ti to A2 0.036 Area of bottom opening31 18 A4 0.070 Area of bottom opening

A2 A4 ha 1.50 m mean height diff between openings22 Cd 0.61 f Discharge co-efficient (typ 0.61)

m3/s Th 40 deg C Temperature at high levelQb displaced air is 0.054 Tl 22 deg C Temperature at low level

to 18 deg C Outside ambient temperatureat outlet kW

A1 0.017 0.448 13 ti - toA3 0.037 0.995 24.5 (ti + to) / 2

1.443 0.07825 Ab

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m2

m2

m2

m2

m3/s

Area of top openingArea of top opening

Area of bottom openingArea of bottom opening

mean height diff between openingsDischarge co-efficient (typ 0.61)

Temperature at high levelTemperature at low levelOutside ambient temperature

(ti + to) / 2

75 65 59 53 50 47 45 43

Octave Band Mid-Frequency (Hz)63 125 250 500 1k 2k 4k 8k

Octave Band SPL 75 65 59 53 50 47 45 43

"A" Weighting -26 -16 -9 -3 0 1 1 -1

"A" Corrected 49 49 50 50 50 48 46 42

Antilog Lp/10 79432.8234724 79432.8234724 100000 100000 100000 63095.734448 39810.7170553 15848.9319246

Total 10 log: 577621.03

"A" Weighted SPL 58 dB(A)

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