Experimental study of H<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline" id="d1e1444" altimg="si5.svg"><mml:msub><mml:mrow/><mml:mrow><mml:mn>2</mml:mn></mml:mrow></mml:msub></mml:math>/O<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline" id="d1e1452" altimg="si5.svg"><mml:msub><mml:mrow/><mml:mrow><mml:mn>2</mml:mn></mml:mrow></mml:msub></mml:math> downward multi-fuel-jet inverse diffusion flames

Utria, Khriscia; Labor, S.; Kühni, Manuel; Escudié, Dany; Galizzi, Cédric

doi:10.1016/j.expthermflusci.2021.110583

Cited by 8 publications

(1 citation statement)

References 38 publications

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“…It was indicated that increasing the air to fuel velocity ratio improves fuel entrainment into the air jet, therefore enhancing fuel-air jet mixing. Utria et al [11] studied the multi-fuel-jet inverse diffusion flames characteristics. The results show that the oxidizer momentum influences the flame structure characteristics Revised:10 May, 2022, Accepted:7 July , 2022…”

Section: Introductionmentioning

confidence: 99%

Experimental Study of Gaseous Fuel Inverse Diffusion Flame

Abdelrahman

2024

Journal of Advanced Engineering Trends

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The main aim of the present work is studying the effects of swirl number and equivalence ratio on the combustion characteristics of liquefied petroleum gas (LPG) for normal diffusion flame (the NDF) and inverse diffusion flame (the IDF). The effects of different swirl numbers of 0.5, 0.75,1.0, and 1.5 are studied at an equivalence ratio of 1.0. In addition, the effect of different equivalence ratios of 0.75, 1.0, 1.5, and 2.0 at a swirl number of 0.5 were studied. The flame shape, visible flame length, temperature distributions and species concentrations were measured. To study the above parameters, a test rig that consists of an air supply line, a fuel supply line, and a burner head was designed and constructed. The results showed that, by increasing the swirl number, the visible flame length is decreased for the IDF and the NDF. Moreover, by increasing the equivalence ratio Φ, the visible flame length, for the IDF, was increased by about 39%, 91%, 108%, and 620% for air swirl number 0.5, 0.75, 1.0 and 1.5, respectively. However, the maximum temperature decreased. It was, also, found that the concentrations of NO, CO 2 and CO were increased until reach their maximum value. While the concentrations of O 2 were decreased. The maximum value of the NO for the IDF is found to be 35 ppm, while for the NDF is 245 ppm. In addition, it was found that the IDF emitted less CO and NO than the NDF did. Therefore, it is more suitable for environmental preservation.

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Section: Introductionmentioning

confidence: 99%