Eventos Anais de eventos
ENCIT 2016
16th Brazilian Congress of Thermal Sciences and Engineering
STUDY OF EXPERIMENTAL TECHINIQUES FOR VISIBLE FLAME LENGTH MEASUREMENT OF TURBULENT DIFFUSION FLAMES
Submission Author:
LUIS QUEZADA , RS , Brazil
Co-Authors:
Orion Costa, Fernando Pereira, Isaias Machado
Presenter: LUIS QUEZADA
doi://10.26678/ABCM.ENCIT2016.CIT2016-0351
Abstract
Optical visualizations of turbulent diffusion flames are used to estimate the visible average flame length. The paper presents a study of three different methods to measure the VFL using optical techniques. The effect on the image of the main optic parameters such as focus, exposure time and ISO sensibility are analyzed. The VFL obtained with images in low exposure time and long exposure time are compared with a third optical method that is based on the luminous intensity. Finally one metdhod was used to characterize the behaviour of turbulent diffusion flames in fucntion of the increment of the volumetric flow rate.
Keywords
flame length, turbulent flames, measurement
