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 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: 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
