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chapter 5 turbulent diffusion flames - FedOA

chapter 5 turbulent diffusion flames - FedOA

5.3. SIZE DISTRIBUITION

5.3. SIZE DISTRIBUITION FUNCTIONS MEASURED BY ON-LINE SMPS 99 6. BURNERS FOR HOME APPLIANCES 101 6.1. BURNERS CONFIGURATION 101 6.2. EXPERIMENTAL PROCEDURE AND RESULT 102 6.3.1 IN-SITU MEASUREMENTS 103 6.3.2 EX-SITU MEASUREMENTS: WATER TRAP AND SMPS 104 6.3.3 EMISSION INDEX FOR CONFIGURATION IN COMMERCIAL BOILER 105 7. CONCLUSIONS 108 8. REFERENCES 111 4

ABBREVIATIONS LIF Laser Induced Fluorescence LII Laser Induced Incandescence NOC Nanoparticle of Organic Carbon PAH Polycyclic Aromatic Hydrocarbon PSDF Particles size distributions function SMPS Scanning Mobility Particles Sizer RSFR Resonantly Stabilized Free Radical HACA Hydrogen-abstraction/acetylene-addiction mechanism LLS Laser Light Scattering TEM Transmission Electron Microscopy DMA Differential Mobility Analysis AFM Atomic Force Microscopy SR Sphericity Ratio PM Particulate Matter HAB Height Above the Burner TPD Thermocouple Particle Densitometry DNS Direct Numerical Simulations RANS Reynolds Averaged Navier–Stokes computations LES Large-Eddy Simulations dp Particle diameter N Number density of particles aggregates np The average number of primary particles per aggregate. Kabs Absorption coefficient λ Wavelength Kn Knudsen number ƒ Euken factor ΔHv Heat of vaporization ρs Density of soot in solid phase ρv Density of soot in vapor Ts Surface temperature of the particle R Universal gas constant Stefan Boltzmann constant σSB 5

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