Flaresim design basic Analysis slideshow.pdf

Flaresim presentation

1. Flaresim Flaresim Flare Radiation Analysis
Rev 2.2FLARESIMSlide 1

2. Flaresim Overview Flaresim Overview Used in the Design of Flare Systems for
¾Offshore oil platforms
¾Gas plants
¾
Refineries
¾
Refineries
¾Chemical plants
Assist professional engineers to
¾Evaluate thermal radiation & noise from flares ¾
Evaluate temperatures of exposed surfaces
¾
Evaluate temperatures of exposed surfaces
¾Evaluate flare gas dispersion
Flaresim
can analyse complex flare systems
FLARESIMSlide 2
Flaresim
can analyse complex flare systems
Version 3

3. Flaresim Overview Flaresim Overview Auser friendly interface
¾Data entry in a mixture of units
¾Program driven by menu & toolbar
¾
Context sensitive help
¾
Context sensitive help
Flaresim output is highly customisable
l
¾Summary or detai
l
ed output
¾Graphical output where appropriate
¾Standard format ex
p
orts for further use
p
(html, xls, csv)
Licensing is either standalone or network Version 3FLARESIMSlide 3 Licensing is either standalone or network

4. Flaresim Features Flaresim Features Global calculation options Global calculation options Fluids, Environments, Stacks Flare Tips Flare Tips Receptor Points
Receptor Grids
Assist fluids
¾User creates as many
instances of each as
id
requ
i
re
d
¾Copy option for Fluids and
other objects
Version 3FLARESIMSlide 4

5. Fluids Defined from Properties -Composition
Component library with most common components Component library with most common components
¾User extendable
Ei t E
nv
i
ronmen
t
s
Wind
Single direction or wind rose
Atmosphere
Radiation and Noise Attenuation
Background
Solar Radiation and Noise
Stacks Orientation and dimensions
Version 3FLARESIMSlide 5 Orientation and dimensions

6. Tips Tips Selection of types
¾
Pipe
Sonic
Liquid burner
Combined HP/LP
¾
Pipe
–
Sonic
-
Liquid burner
-
Combined HP/LP
Seal Types
¾Fluidic - Molecular
Methods for F factor
¾User defined –Natural Gas –Kent –Tan –Cook –High
Efficiency
–
Generic Pipe
–
Modified Chamberlain
Efficiency
–
Generic Pipe
–
Modified Chamberlain
Combustion noise methods
¾Acoustic efficiency – Low Noise reference ¾Standard reference – User reference
Location and dimension definition References a Stack and a Fluid Version 3FLARESIMSlide 6 References a Stack and a Fluid

7. Receptor Points Receptor Points Location Location Properties
¾Emissivity - Absorbtivity
¾Area Ratio – Mass / Unit Area
¾
Mass
C
p
–
In
i
t
i
al
T
emperature
Mass p
In t al emperature
Define constraints for sizing
M Rd
¾
M
ax
R
a
d
iation
¾Max Noise
¾MaxTem
p
erature
Version 3FLARESIMSlide 7
p

8. Radiation Calculation Radiation Calculation 8
methods to calculate incident radiation
8
methods to calculate incident radiation
¾Strict API
¾Flaresim API
¾
Integrated Point Source
¾
Integrated Point Source
¾Integrated Diffuse Source
¾Integrated Mixed Source
¾
Brzustowski
¾
Brzustowski
¾Multipoint Brzustowski
¾Chamberlain
Version 3FLARESIMSlide 8

9. Noise Calculation Noise Calculation T
wo basic sources
T
wo basic sources
¾Combustion noise
¾Jet noise
Each source has a frequency distribution Overall noise is the combination of the sources Version 3FLARESIMSlide 9

10. Temperature Calculation Temperature Calculation Exposed surface h
eat balance between
Exposed surface h
eat balance between
¾The thermal radiation incident at the specified point ¾Heat losses by radiation and convection
T fil T
emperature

pro
fil
e
¾Net heat received ¾Heat capacity of the material at the specified point
Version 3FLARESIMSlide 10

11. Calculation modes Calculation modes System Rating System Rating ¾Known stack length
¾Calculated radiation, noise and temperature
Stack S
i
z
i
ng
Stack Szng ¾Sizing to meet radiation, noise and temperature constraints
¾Constraints defined at receptor points
¾
Minimum and maximum stack len th user defined
¾
Minimum and maximum stack len
g
th user defined
Version 3FLARESIMSlide 11

12. Tip Results Tip Results
¾
Gas exit velocity and Heat
¾
Gas exit velocity and Heat
release
¾Stack and ti
p

p
ressure dro
p
pp p
¾Purge gas requirements ¾Combustion gas composition
¾Table & graphs of
¾Noise spectrum
¾2D/3D flame shape
Tables & graphs (JPG PNG WMF BMP or EMF)
Version 3FLARESIMSlide 12
Tables & graphs (JPG
,
PNG
,
WMF
,
BMP or EMF)
can be exported individually

13. Receptor Point Results Receptor Point Results
hl l
T
h
erma
l
resu
l
ts
¾Incident radiation ¾Final temperature ¾Temperature profile
•table and graphic
¾Wind rose
Version 3FLARESIMSlide 13

14. Receptor Points Results Receptor Points Results
Noise results
¾Total and Average value ¾Frequency distribution ¾Spectrum
•table and graphic
Version 3FLARESIMSlide 14

15. Rece
p
tor Grids
p
Defines a rectangular area with multiple receptors Thermal results
¾Radiation Isopleths ¾
Temperature Isopleths
¾
Temperature Isopleths
Noise results
¾
A A
ihtd l Isplths
¾
A
verage

or
A
-we
i
g
ht
e
d
va
l
ue
Is
o
pl
e
ths
A plot overlay can be defined
¾Multiple graphical formats (
DXF, JPG, PNG, BMP, WMF
)
A
g
ra
p
hical re
p
ort can be customised
Version 3FLARESIMSlide 15

16. Receptor
Grid Results
Version 3FLARESIMSlide 16

17. Receptor
Grid Results
Version 3FLARESIMSlide 17

18. Version 3FLARESIMSlide 18

19. Shields Shields Reduce the radiation at the receptor points Reduce the radiation at the receptor points Types according to transmissivity: ¾Solid ¾
Wt
¾
W
a
t
er

screen
¾User defined
Version 3FLARESIMSlide 19

20. Shield Effects
Version 3FLARESIMSlide 20

21. Gas Dispersion Calculation Gas Dispersion Calculation Jet Dispersion Model Jet Dispersion Model ¾Flame out conditions
¾Prediction close to the flame
C i f fl bl
¾
C
oncentrat
i
on

o
f fl
amma
bl
e

gas
Gaussian Gas Dispersion Model ¾Flared gas or combustion products ¾
Prediction at reater distance from flare
¾
Prediction at
g
reater distance from flare
¾Concentration of uncombusted gas or pollutants Version 3FLARESIMSlide 21

22. Jet Dispersion
Results
Version 3FLARESIMSlide 22

23. Gi G
auss
i
an

Dispersion Results
Version 3FLARESIMSlide 23

24. References References Over 100 companies worldwide are using Fl h f f h Ei i C i
Oil d G C i
Fl S t V d
Fl
aresim.

T
h
ese

are
j
ust

a
f
ew

o
f
t
h
em...
E
ng
i
neer
i
ng
C
ompan
i
es
Aker
Bechtel
Brown & Root
Oil
an
d G
as
C
ompan
i
es
Abu Dhabi Gas
Liquefaction
BP Amoco
Fl
are
S
ys
t
em
V
en
d
ors
Airoil Flaregas
Argo Flare Services
GBA
Chiyoda
Foster Wheeler
Fluor Daniel Kvaerner John Brown
British Gas QGPC Occidental Mobil
GBA Halliburton
Hamworthy
Mactronic
Kvaerner John Brown M.W. Kellogg
Snamprogetti
Technip Worley
Mobil Total National Airoil
Optima Solutions
Samia srl
Version 3FLARESIMSlide 24 Worley

25. FLARESIM The reference in flare radiation analysis Version 3FLARESIMSlide 25