Gaseous fuel diffusion flame with low oxygen concentrations

The present study presents an experimental investigation into combustion characteristics of Liquefied Petroleum Gas (LPG) diffusion flame at air with low oxygen concentrations. An apparatus has been developed to examine various operating conditions inside a vertical water-cooled tubular combustor. T...

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Main Authors: H.M. Gad, A.M. Salman, T.M. Farag, I.A. Ibrahim
Format: Article
Language:English
Published: Elsevier 2023-09-01
Series:Results in Engineering
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2590123023004863
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author H.M. Gad
A.M. Salman
T.M. Farag
I.A. Ibrahim
author_facet H.M. Gad
A.M. Salman
T.M. Farag
I.A. Ibrahim
author_sort H.M. Gad
collection DOAJ
description The present study presents an experimental investigation into combustion characteristics of Liquefied Petroleum Gas (LPG) diffusion flame at air with low oxygen concentrations. An apparatus has been developed to examine various operating conditions inside a vertical water-cooled tubular combustor. The air swirler is used as a flame holder or stabilizer. Investigated conditions covered nitrogen addition percentages (by mass) in air stream diverse from 0 to 12.5% to give low oxygen concentrations of 23.3 to 10.8%, respectively. Temperatures pattern, temperatures gradient, flame height, and emissions were utilized to evaluate the performance of LPG combustion. It inferred that by increasing the nitrogen percentages addition, the volume of the high temperature zone decreased until it disappeared at nitrogen percentage of 12.5%, therefore, the flame length was decreased. The NO emission reached its peak near the maximum temperature location. Increasing N2 percentages in air stream which consequently decreases the oxygen mass fraction or concentration, causes a reduction in the NO, O2, CO2, and CO concentrations at the combustor end.
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spelling doaj.art-3c453f4362684f32a4e6c890e2b56c872023-09-18T04:30:51ZengElsevierResults in Engineering2590-12302023-09-0119101359Gaseous fuel diffusion flame with low oxygen concentrationsH.M. Gad0A.M. Salman1T.M. Farag2I.A. Ibrahim3Corresponding author.; Department of Mechanical Power Engineering, Faculty of Engineering, Port Said University, Port-Said, EgyptDepartment of Mechanical Power Engineering, Faculty of Engineering, Port Said University, Port-Said, EgyptDepartment of Mechanical Power Engineering, Faculty of Engineering, Port Said University, Port-Said, EgyptDepartment of Mechanical Power Engineering, Faculty of Engineering, Port Said University, Port-Said, EgyptThe present study presents an experimental investigation into combustion characteristics of Liquefied Petroleum Gas (LPG) diffusion flame at air with low oxygen concentrations. An apparatus has been developed to examine various operating conditions inside a vertical water-cooled tubular combustor. The air swirler is used as a flame holder or stabilizer. Investigated conditions covered nitrogen addition percentages (by mass) in air stream diverse from 0 to 12.5% to give low oxygen concentrations of 23.3 to 10.8%, respectively. Temperatures pattern, temperatures gradient, flame height, and emissions were utilized to evaluate the performance of LPG combustion. It inferred that by increasing the nitrogen percentages addition, the volume of the high temperature zone decreased until it disappeared at nitrogen percentage of 12.5%, therefore, the flame length was decreased. The NO emission reached its peak near the maximum temperature location. Increasing N2 percentages in air stream which consequently decreases the oxygen mass fraction or concentration, causes a reduction in the NO, O2, CO2, and CO concentrations at the combustor end.http://www.sciencedirect.com/science/article/pii/S2590123023004863Low oxygen concentrationDiffusion flameNitrogen addition
spellingShingle H.M. Gad
A.M. Salman
T.M. Farag
I.A. Ibrahim
Gaseous fuel diffusion flame with low oxygen concentrations
Results in Engineering
Low oxygen concentration
Diffusion flame
Nitrogen addition
title Gaseous fuel diffusion flame with low oxygen concentrations
title_full Gaseous fuel diffusion flame with low oxygen concentrations
title_fullStr Gaseous fuel diffusion flame with low oxygen concentrations
title_full_unstemmed Gaseous fuel diffusion flame with low oxygen concentrations
title_short Gaseous fuel diffusion flame with low oxygen concentrations
title_sort gaseous fuel diffusion flame with low oxygen concentrations
topic Low oxygen concentration
Diffusion flame
Nitrogen addition
url http://www.sciencedirect.com/science/article/pii/S2590123023004863
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