4/2/2022 6:08:31 PM Flaresim 2021.2.55 Page 1
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QUALITY ASSURANCE CONTROL SHEET

Check Code
Calculations By
Date
Time
Calculations Approved by
Date
Time


4/2/2022 6:08:31 PM Flaresim 2021.2.55 Page 2
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DataFile E:\Manuals\Tutorial\FLARE\Practice\MEKPCO DESIGN V2.fsw
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Calculation Options

General
Method Brzustowski Nbr Flame Elem. 1 Calculation mode Sizing
Element Position 50 Active Environment Environment 1 Noise Method Spectrum
Liquid Buoyancy 0.030 m/s Pipe Buoyancy 3.048 m/s Sonic Buoyancy 4.572 m/s

Options
Expert Mode Ignored Windchill Ignored Noise Attenuation Active
Jet Dispersion Ignored Gaussian Dispersion Ignored
Run Dynamics False Run Case Studies True

Heat Transfer Coef. in W/m2/K Temperature Rise Calculations
HTC = 1.25 * WindSpeed^ 1.00 + 4.54 Wind speed below 4.572 m/s Exposure Time 900.0 s
HTC = 3.18 * WindSpeed^ 0.75 + 0.00 For higher wind speeds Nbr of Steps 90

Emission Data
NOX Basis Mass/Heat Release CO Basis Mass/Heat Release HC Basis Mass/Heat Release
NOX Rate 0.02923 kg/GJ CO Rate 0.15900 kg/GJ HC Rate 0.06016 kg/GJ

Fitting Data
Fitting Tip Fitting Point <All Active>
Fitting Result ----- Fitting Error -----

Sizing Information
Stack to be sized None Minimum Length 5.00 m Maximum Length 100.00 m
Sizing Wind Direction ----- Sizing Wind Speed ----- Calculated Size -----

Pressure Profile
Pressure Tolerance 0.000 bar Tip Elements 4 Riser Elements 40

Dispersion Data
Jet Disp. Averaging Short Jet Disp. Stop Conc. 0.00001 mole/mole

Environmental data

Environment: Environment 1 - Active

Atmosphere
Pressure 1.013 bar Temperature 15.6 C Humidity 10.00 %
Wind Speed 20.000 m/s Wind Direction 0.00 °

Background
BackGround Noise 60.0 dB Solar Radiation 0.800 kW/m2
Inc. Background Noise Active Inc. Solar Radiation Active

Transmissivity
Method Calculated Min Value 0.821 Max Value 0.869


4/2/2022 6:08:31 PM Flaresim 2021.2.55 Page 3
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Wind Rose Calculations
Wind Speed Array Ignored Wind Speed vs Direction Ignored

Dispersion Data
Stability Class PasquillD Terrain Class Rural Surface Roughness 0.20 m
Wind Reference Height 10.00 m Correct Wind Speed False

Stack Configuration Data

Stack: Stack 1 - Active

Input Data

Base point name Stack 1 (Base) Base refers to Origin
Base - Northing 0.00 m Base - Easting 0.00 m Base - Elevation 0.00 m
Base - Angle from North 0.00 ° Base - Angle to Horizontal 0.00 ° Base - Radius 0.00 m
Stack
Rotation from North 0.00 ° Angle to Horizontal 90.00 ° Stack Length 44.50 m

Sterile Area
Elevation 0.00 m Noise Basis Noise Run SA Calcs False

Fluid Data

Fluid: Fluid 1

Input Data

Thermo Method Flaresim
Use Temp Corr. False Use RK ZFactor True

LHV 20278.00 kJ/kg Tc -133.6 C LEL 5.00 %
Fluid Temperature 47.9 C Pc 35.269 bar Saturation 100.00 %
Molecular Weight 11.440 Cp/Cv 1.310 Ref. Pressure 2.510 bar

Results

Flue to Feed Volume Ratio 2.344 Stoichiometric O2 1.508
Enthalpy @ 25°C 824.87 kJ/kg Enthalpy @ Fluid Temp. 892.24 kJ/kg

Stoichiometric Flue Gas Composition
Carbon Dioxide 0.28673 mole/mole Water 0.71327 mole/mole Oxygen 0.00000 mole/mole
Nitrogen 0.00000 mole/mole Sulphur Dioxide 0.00000 mole/mole


4/2/2022 6:08:31 PM Flaresim 2021.2.55 Page 4
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Tip Data

Tip: Tip 1 - Active

Input Data

General
Tip Type Pipe Located on stack Stack 1 Nbr of Burners 1
Angle to Horizontal 90.00 ° Angle to North 0.00 °
Tip Length 5.00 m Tip Diameter 1611.70 mm Tip Opening 100.00 %
Seal Type None Diameter Basis Tip

Fluids
Fluid Fluid 1 LP Fluid Assist Fluid
Fluid Mass Flow 282200.000 kg/h LP Mass Flow 0.000 kg/h Assist Mass Flow 0.000 kg/h
Fluid Mole Flow 6.852 kgmole/s LP Mole Flow 0.000 kgmole/s

Pressure Drop
Riser Diameter 1611.70 mm Tip Outlet Pressure ----- Contraction Coeff. 1.000
Roughness 0.02500 mm Exit Loss 1.000

Flame and Radiation
F Factor Method Generic Pipe
Combustion Air Ratio 1.000 Flame Temperature 1999.9 C
Flame Length Method Brzustowski
Radiation Method Global Flame Element Count 1 Element Position 50.00 %

Noise
Noise Method Acoustic Eff. Comb. Efficiency 0.00010 % Peak Frequency 500 Hz
Jet Noise Method Flaresim

Purge Gas
Purge Gas Fluid Nitrogen Purge Area Basis Stack Purge Fixed Velocity 0.060 m/s
Purge Fixed Volume Flow 0.283 m3/h Purge HUSA O2 6.00 % Purge HUSA Height 7.62 m

Emission Data
NOX Basis Mass/Heat Release CO Basis Mass/Heat Release HC Basis Mass/Heat Release
NOX Rate 0.02923 kg/GJ CO Rate 0.15900 kg/GJ HC Rate 0.06016 kg/GJ

Tip: Tip 1 - Results

General
Flame Length 106.83 m Heat Release 1589565.4 kW Tip End - Northing 0.00 m
API Flame Length 82.10 m Frac.Heat Radiated 0.172 Tip End - Easting 0.00 m
Exit Temperature 47.9 C Actual Volume Flow 649514.345 m3/h Tip End - Elevation 49.50 m
Assist Fluid Mass Flow ----- Assist Fluid Flow Ratio ----- Wind Speed At Tip 20.000 m/s


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Velocities and Pressure Drop
Exit Velocity 88.437 m/s Tip Outlet pres. 1.013 bar Total Outlet pres. 1.030 bar
Sonic Velocity 552.729 m/s Tip Backpres. 1.014 bar Total Backpres. 1.031 bar
Exit Mach Number 0.160 Seal Backpres. 1.014 bar Total Backpres. 1.031 bar
Contraction Coeff. 1.000 Stack Backpres. 1.018 bar Total Backpres. 1.035 bar
Tip Pressure Drop 0.001 bar Tip Total Pressure Drop 0.001 bar
Seal Pressure Drop 0.000 bar Seal Total Pressure Drop 0.000 bar
Stack Pressure Drop 0.005 bar Stack Total Pressure Drop 0.005 bar

Flame Shape Points
X Y Z
1 0.00 m 0.00 m 49.50 m
2 -99.82 m 0.00 m 70.57 m

3D Flame Shape Chart


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2D Flame Shape Chart, Northing-Easting

2D Flame Shape Chart, Northing-Elevation


4/2/2022 6:08:31 PM Flaresim 2021.2.55 Page 7
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2D Flame Shape Chart, Easting-Elevation

Noise Results
Peak sound pressure
Distance 30.00 m Sound pressure 111.5 dB

Noise Spectrum Results

Frequency
Hz		 Total PWL
dB		 Combustion PWL
dB		 Jet PWL
dB
31.3 114.6 114.5 89.1
62.5 123.0 123.0 84.3
125.0 131.5 131.5 78.7
250.0 140.0 140.0 72.8
500.0 148.5 148.5 66.8
1000.0 145.7 145.7 60.7
2000.0 142.9 142.9 54.7
4000.0 140.1 140.1 48.7
8000.0 137.3 137.3 42.7
16000.0 134.5 134.5 36.7


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Noise Spectrum

Combustion Results General
Adiabatic Flame Temperature 870.1 C Calculated Flame Temperature 733.8 C

Combustion Gas Mass Flow
Carbon dioxide 727410.203 kg/h Water 742346.803 kg/h Oxygen 1804.061 kg/h
Nitrogen 3876237.940 kg/h Sulphur dioxide 0.000 kg/h Nitrogen monoxide 167.294 kg/h
Carbon monoxide 909.849 kg/h Methane 344.267 kg/h Argon 63704.161 kg/h

Combustion Gas Mole Flow
Carbon dioxide 4.591 kgmole/s Water 11.446 kgmole/s Oxygen 0.016 kgmole/s
Nitrogen 38.437 kgmole/s Sulphur dioxide 0.000 kgmole/s Nitrogen monoxide 0.002 kgmole/s
Carbon monoxide 0.009 kgmole/s Methane 0.006 kgmole/s Argon 0.443 kgmole/s

Purge Gas Results
Fixed velocity rate 520.817 kg/h Fixed volume velocity 0.000 m/s Fixed volume rate 0.334 kg/h
HUSA velocity 0.040 m/s Reduced HUSA velocity 0.040 m/s API velocity -----
HUSA rate 347.454 kg/h Reduced HUSA rate 347.423 kg/h API flow -----

Receptor Grids

Receptor Grid: Grid 1 - Active


4/2/2022 6:08:31 PM Flaresim 2021.2.55 Page 9
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Input Data

Location Properties Noise
Orientation Northing-Easting Emissivity 0.700 Noise Basis Noise
Offset 0.00 m Point Absorbtivity 0.700
Axis 1 Northing Area Ratio 2.000
Axis 2 Easting Point Orientation None

Axis information
Northing Minimum -100.00 m Maximum 100.00 m Nbr. of Points 41
Easting Minimum -100.00 m Maximum 100.00 m Nbr. of Points 41

Results

Maximum Radiation
Sizing Limit ----- Find Max. Rad. True Initial Grid Points 11
Radiation 5.035 kW/m2 Northing -49.91 m Easting 0.00 m

Radiation chart


4/2/2022 6:08:31 PM Flaresim 2021.2.55 Page 10
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Temperature chart

Noise chart


4/2/2022 6:08:31 PM Flaresim 2021.2.55 Page 11
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Messages

Level Message
Info: Calculations started at 4/2/2022 6:06:23 PM
Info: Calculating base case
Info: Grid Grid 1 : Calculated
Info: Calculations completed at 6:06:23 PM