Flaresim
Flare Radiation Analysis
Rev 2.2
FLARESIM
Slide 1
Flaresim Overview
Used in the Design of Flare Systems for
Offshore oil platforms
Gas plants
Refineries
Chemical plants
Assist professional engineers to
Evaluate thermal radiation & noise from flares
Evaluate temperatures of exposed surfaces
Evaluate flare gas dispersion
Flaresim can analyse complex flare systems
Version 3
FLARESIM
Slide 2
Flaresim Overview
A user friendly interface
Data entry in a mixture of units
Program driven by menu & toolbar
Context sensitive help
Flaresim output is highly customisable
Summary or detailed
l output
Graphical output where appropriate
Standard format exports
p
for further use
(html, xls, csv)
Licensing is either standalone or network
Version 3
FLARESIM
Slide 3
Flaresim Features
Global calculation options
Fluids, Environments, Stacks
Flare Tips
Receptor Points
Receptor Grids
Assist fluids
User creates as many
instances of each as
required
i d
Copy option for Fluids and
other objects
Version 3
FLARESIM
Slide 4
Fluids
Defined from Properties - Composition
Component library with most common components
User extendable
E i
Environments
t
Wind
Atmosphere
Background
Single direction or wind rose
Radiation and Noise Attenuation
Solar Radiation and Noise
Stacks
Orientation and dimensions
Version 3
FLARESIM
Slide 5
Tips
Selection of types
Pipe Sonic - Liquid burner - Combined HP/LP
Seal Types
Fluidic - Molecular
Methods for F factor
User defined Natural Gas Kent Tan Cook High
Efficiency Generic Pipe Modified Chamberlain
Combustion noise methods
Acoustic efficiency Low Noise reference
Standard reference User reference
Location and dimension definition
References a Stack and a Fluid
Version 3
FLARESIM
Slide 6
Receptor Points
Location
Properties
Emissivity - Absorbtivity
Area Ratio Mass / Unit Area
Mass
Mass Cp
p In
Initial
t al Temperature
emperature
Define constraints for sizing
Max
M Radiation
R d
Max Noise
MaxTemperature
p
Version 3
FLARESIM
Slide 7
Radiation Calculation
8 methods to calculate incident radiation
Strict API
Flaresim API
Integrated Point Source
Integrated Diffuse Source
Integrated Mixed Source
Brzustowski
Multipoint Brzustowski
Chamberlain
Version 3
FLARESIM
Slide 8
Noise Calculation
Two basic sources
Combustion noise
Jet noise
Each source has a frequency distribution
Overall noise is the combination of the sources
Version 3
FLARESIM
Slide 9
Temperature Calculation
Exposed surface heat balance between
The thermal radiation incident at the specified point
Heat losses by radiation and convection
T
Temperature
profile
fil
Net heat received
Heat capacity of the material at the specified point
Version 3
FLARESIM
Slide 10
Calculation modes
System Rating
Known stack length
Calculated radiation, noise and temperature
Stack S
Sizing
z ng
Sizing to meet radiation, noise and temperature constraints
Constraints defined at receptor points
Minimum and maximum stack len
length
th user defined
Version 3
FLARESIM
Slide 11
Tip Results
Gas exit velocity and Heat
release
Stack and tip
p pressure
p
drop
p
Purge gas requirements
Combustion gas composition
Table & graphs of
Noise spectrum
2D/3D flame shape
Tables & graphs (JPG,
(JPG PNG,
PNG WMF,
WMF BMP or EMF)
can be exported individually
Version 3
FLARESIM
Slide 12
Receptor Point Results
Thermal
h
l results
l
Incident radiation
Final temperature
Temperature profile
table and graphic
Wind rose
Version 3
FLARESIM
Slide 13
Receptor Points Results
Noise results
Total and Average value
Frequency distribution
Spectrum
table and graphic
Version 3
FLARESIM
Slide 14
Receptor
p
Grids
Defines a rectangular area with multiple receptors
Thermal results
Radiation Isopleths
Temperature Isopleths
Noise results
Average
A
or A
A-weighted
i ht d value
l Is
Isopleths
pl ths
A plot overlay can be defined
Multiple graphical formats (DXF, JPG, PNG, BMP, WMF)
A graphical report can be customised
Version 3
FLARESIM
Slide 15
Receptor
Grid Results
Version 3
FLARESIM
Slide 16
Receptor
Grid Results
Version 3
FLARESIM
Slide 17
Version 3
FLARESIM
Slide 18
Shields
Reduce the radiation at the receptor points
Types according to transmissivity:
Solid
Water
W t screen
User defined
Version 3
FLARESIM
Slide 19
Shield Effects
Version 3
FLARESIM
Slide 20
Gas Dispersion Calculation
Jet Dispersion Model
Flame out conditions
Prediction close to the flame
Concentration
C
i of
f flammable
fl
bl gas
Gaussian Gas Dispersion Model
Flared gas or combustion products
Prediction at greater
reater distance from flare
Concentration of uncombusted gas or pollutants
Version 3
FLARESIM
Slide 21
Jet Dispersion
Results
Version 3
FLARESIM
Slide 22
Gaussian
G
i
Dispersion Results
Version 3
FLARESIM
Slide 23
References
Over 100 companies worldwide are using
Fl
Flaresim.
These
h
are just a few
f
of
f them...
h
Engineering
E
i
i Companies
C
i
Aker
Bechtel
Brown & Root
Chiyoda
Foster Wheeler
Fluor Daniel
Kvaerner John Brown
M.W. Kellogg
Snamprogetti
Technip
Worley
Version 3
Oil and
d G
Gas Companies
C
i
Abu Dhabi Gas
Liquefaction
BP Amoco
British Gas
QGPC
Occidental
Mobil
Total
FLARESIM
Fl
Flare
System
S t
Vendors
V d
Airoil Flaregas
Argo Flare Services
GBA
Halliburton
Hamworthy
Mactronic
National Airoil
Optima Solutions
Samia srl
Slide 24
FLARESIM
The reference in flare radiation analysis
Version 3
FLARESIM
Slide 25
