Spectroscopic Determination of Excitation Temperature and Electron Density in Premixed Laminar Flame
نویسنده
چکیده
Spectroscopic diagnostic technique are applied for the determination of excitation temperature Texc and electron density in Air Acetylene premixed laminar flame. A group of FeI spectral lines has been used to estimate Texc using Boltzmann plot. Electron number density was determined from atom ion line pairs for Cd and Zn using Saha Boltzmann equation after substitution the obtained value of excitation temperature. The obtained result of temperature show that the populations of energy levels follow Boltzmann’s distribution law.
منابع مشابه
Resolution Requirements in Stochastic Field Simulation of Turbulent Premixed Flames
The spatial resolution requirements of the Stochastic Fields probability density function approach are investigated in the context of turbulent premixed combustion simulation. The Stochastic Fields approach is an attractive way to implement transported Probability Density Function modelling into Large Eddy Simulations of turbulent combustion. In premixed combustion LES, the numerical grid shoul...
متن کاملEffects of Combustible Dust Clouds on the Extinction Behavior of Strained, Laminar Premixed Flames in Normal Gravity
An experimental and numerical study was performed on the interaction of combustible solid particles with atmospheric, strained, laminar premixed methane/air and propane/air flames in normal gravity. The study was conducted in the opposed-jet configuration in which a single flame was stabilized below the gas stagnation plane by counterflowing a mixture against an air jet. Into the flame were see...
متن کاملResponse of a conical, laminar premixed flame to low amplitude acoustic forcing-A comparison between experiment and kinematic theories
This paper presents an experimental study on the dynamics of a ducted, conical, laminar premixed flame subjected to low amplitude acoustic excitation from upstream. The heat release response of the flame to velocity disturbances is investigated through measurement of the so called ‘flame transfer function’ for a wide range of forcing frequencies. The results are compared with those predicted by...
متن کاملThree-scalar Imaging in Turbulent Non-premixed Flames of Methane
Raman scattering from nitrogen in laminar (Re 4 1600) and turbulent (Re 4 15,000) non-premixed flames of diluted methane has been investigated as a means of complementing the two-scalar mixturefraction computation based on measurements of fuel mass fraction and temperature (nFT). Using a diluent consisting of argon and oxygen with an overall volumetric dilution ratio of 3/1 (diluent/fuel) allow...
متن کاملThe Determination of Temperature in Methane-Air, Propane-Air and Butane-Air Flames Using the Raman Q-Branch Spectra of Nitrogen
The unresolved Q-branch profiles in the Raman spectra of' nitrogen in premixed, laminar, methane-air, propane-air and butane-air flames with lean to stoichiometric fuel-air equivalence ratios have been recorded experimentally and used to determine flame temperature s with a precision of about 10f0using an iterative computer program which fitted calculated nitrogen spectra to the experimentally ...
متن کامل