Open AccessExperimental study of Partially Premixed-Diffusion Turbulent Flame with Circular Plate Bluff Body
Author(s) -
M. Koraiem Handawy,
A. A. Hegazy,
Naoki Koura,
O. M. Dahab
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1565/1/012103
Subject(s) - premixed flame , diffusion flame , equivalence ratio , bluff , mechanics , laminar flame speed , turbulence , flame structure , adiabatic flame temperature , diffusion , materials science , nox , chemistry , analytical chemistry (journal) , combustion , thermodynamics , combustor , chromatography , organic chemistry , physics
This Study presents a parametric study on flame stabilization of partially premixed-diffusion turbulent flame behind the circular bluff body. The effects of the premixing and equivalence fuel ratios on flame temperature distribution and emission variation along the flame axis are investigated. The results indicate that as the premixing ratio increases the residence time and the recirculation zone length increase while the flame length decreases. The axial temperature distribution enhancements at the recirculation zone, and then a decrease towards the flame tip. As the premixed ratio increases the flame average temperature increase while emission measurements indicate a decrease in CO concentration with a slight increase in NOX production along the flame axis.