Flare sim

Flaresim Flare Radiation Analysis

Rev 2.2

FLARESIM

Slide 1

Flaresim Overview Used in the Design of Flare Systems for ¾ ¾ ¾ ¾

Offshore oil platforms Gas plants Refineries Chemical plants

Assist professional engineers to ¾ Evaluate thermal radiation & noise from flares ¾ Evaluate temperatures of exposed surfaces ¾ Evaluate flare gas dispersion

Flaresim can analyse complex flare systems Version 3

FLARESIM

Slide 2

Flaresim Overview A user friendly interface ¾ Data entry in a mixture of units ¾ Program driven by menu & toolbar ¾ Context sensitive help

Flaresim output is highly customisable ¾ Summary or detailed l output ¾ Graphical output where appropriate ¾ 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 ¾ User creates as many instances of each as required i d ¾ Copy option for Fluids and other objects

Version 3

FLARESIM

Slide 4

Fluids Defined from Properties - Composition Component library with most common components ¾ 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 ¾ Pipe – Sonic - Liquid burner - Combined HP/LP

Seal Types ¾ Fluidic - Molecular

Methods for F factor ¾ User defined – Natural Gas – Kent – Tan – Cook – High Efficiency – Generic Pipe – Modified Chamberlain

Combustion noise methods ¾ Acoustic efficiency – Low Noise reference ¾ Standard reference – User reference

Location and dimension definition References a Stack and a Fluid Version 3

FLARESIM

Slide 6

Receptor Points Location Properties ¾Emissivity - Absorbtivity ¾Area Ratio – Mass / Unit Area ¾Mass Mass Cp p – In Initial t al Temperature emperature

Define constraints for sizing ¾Max M Radiation R d ¾Max Noise ¾MaxTemperature p Version 3

FLARESIM

Slide 7

Radiation Calculation 8 methods to calculate incident radiation ¾ ¾ ¾ ¾ ¾ ¾ ¾ ¾

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 ¾ Combustion noise ¾ 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 ¾ The thermal radiation incident at the specified point ¾ Heat losses by radiation and convection

T Temperature profile fil ¾ Net heat received ¾ Heat capacity of the material at the specified point

Version 3

FLARESIM

Slide 10

Calculation modes System Rating ¾ Known stack length ¾ Calculated radiation, noise and temperature

Stack S Sizing z ng ¾ Sizing to meet radiation, noise and temperature constraints ¾ Constraints defined at receptor points ¾ Minimum and maximum stack len length th user defined

Version 3

FLARESIM

Slide 11

Tip Results ¾ Gas exit velocity and Heat release ¾ Stack and tip p pressure p drop p ¾ Purge gas requirements ¾ Combustion gas composition ¾ Table & graphs of ¾ Noise spectrum ¾ 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 ¾ Incident radiation ¾ Final temperature ¾ Temperature profile • table and graphic

¾ Wind rose

Version 3

FLARESIM

Slide 13

Receptor Points Results Noise results ¾ Total and Average value ¾ Frequency distribution ¾ Spectrum • table and graphic

Version 3

FLARESIM

Slide 14

Receptor p Grids Defines a rectangular area with multiple receptors Thermal results ¾ Radiation Isopleths ¾ Temperature Isopleths

Noise results ¾ Average A or A A-weighted i ht d value l Is Isopleths pl ths

A plot overlay can be defined ¾ 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

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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: ¾ Solid ¾ Water W t screen ¾ User defined

Version 3

FLARESIM

Slide 19

Shield Effects

Version 3

FLARESIM

Slide 20

Gas Dispersion Calculation Jet Dispersion Model ¾ Flame out conditions ¾ Prediction close to the flame ¾ Concentration C i of f flammable fl bl gas

Gaussian Gas Dispersion Model ¾ Flared gas or combustion products ¾ Prediction at greater reater distance from flare ¾ 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