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ENCIT 2020
18th Brazilian Congress of Thermal Sciences and Engineering
STABILITY LIMITS OF NON-PREMIXED INVERSE TURBULENT DIFFUSION FLAMES WITH O2 ENRICHEMENT
Submission Author:
Rodrigo Dartora , RS , Brazil
Co-Authors:
Rodrigo Dartora, Luisa Dahlem Almeida, camilo hoyos, Fernando Pereira, Andrés Armando Mendiburu Zevallos
Presenter: Rodrigo Dartora
doi://10.26678/ABCM.ENCIT2020.CIT20-0769
Abstract
An experimental study was conducted to investigate the effect of oxygen enrichment on the expansion of stability limits of non-premixed inverse diffusion flames. The experimental set up was composed by a jet of oxidant spread into a chamber filled with gas to form an inverse flame with a coaxial burner. Many combinations of flow rates were tested and the oxidant flow rate was increased until the flame goes out. The results were illustrated by the oxidant velocity and O2 percentage. The experiment was able expand the stability limits, reaching oxidant Reynolds over 2300 and fuel Reynolds was settled for 3863, representing a turbulent flow.
Keywords
inverse flames, oxygen, blowout
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