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412972

Experimental Study of the Impact of Flue Gas Recirculation on the Combustion Characteristics of LPG Diffusion Flame

Article

Last updated: 09 Mar 2025

Subjects

-

Tags

Mechanical & Power Energy Engineering.

Abstract

This study aimed to experimentally evaluate the impact of the Flue Gas Recirculation (FGR) on the combustion parameters of a diffusion flame of Liquefied Petroleum Gas (LPG) within a cylindrical combustor model. A flue gas recirculation system is employed to facilitate the recirculation of combustion gases. The combustion gases are then blended with the primary air stream to mitigate the emissions of nitrogen monoxide (NO) that arises from the elevated temperature within the combustor tube. For all operating settings, the Air to Fuel mass Ratio (AFR), Equivalency Ratio (Φ), swirl number (S), and Thermal Load (T.L.) were fixed at 40, 0.4, 0.5, and 21 kW, respectively. The experimental testing rig consists of a gaseous fuel line, an airline, a flue gas recirculation line, a burner head, and combustor tube. The impact of the varying FGR percentages, which are 0, 5, 8, 11, 14, 17, and 20 % are investigated. The experimentally observed and reported data include temperature distributions, exhaust species concentrations, dimensionless visible flame length, and heat transfer to cooling water. The findings showed different outcomes were seen when the flue gas recirculation fraction was increased from 0 % to 20 %. This led to a decrease in the axial flame temperature, flame length, heat transfer to cooling water, NO concentration, and O2 concentration. On the other hand, when the flue gas recirculation % rose, the concentrations of CO2 and CO showed a rise.

DOI

10.21608/jaet.2024.307964.1297

Keywords

Recirculation of flue gas, Diffusion flame, reduction of NOx

Authors

First Name

Ibrahim

Last Name

Abdelrahman

MiddleName

-

Affiliation

Mechanical Power Engineering Dep., Faculty of Engineering, Port Said University, Port-Said, Egypt

Email

eng.hema@eng.psu.edu.eg

City

Port fouad

Orcid

0000-0002-4420-2742

First Name

Hamada

Last Name

Gad

MiddleName

Mohamed

Affiliation

Mechanical Power Engineering Dep., Faculty of Engineering, Port Said University, Port-Said, Egypt

Email

hamada_zzdd@eng.psu.edu.eg

City

Port Said

Orcid

0000-0003-1498-025X

First Name

Ahmed

Last Name

Elsaeed

MiddleName

-

Affiliation

Mechanical Power Engineering Dep., Faculty of Engineering, Port Said University, Port-Said, Egypt

Email

ahmned.elsaeed922@eng.psu.edu.eg

City

port said

Orcid

-

First Name

Ahmed

Last Name

Amer

MiddleName

-

Affiliation

Mechanical Power Engineering Dep., Faculty of Engineering, Port Said University, Port-Said, Egypt

Email

eng.ahmed_amer@eng.psu.edu.eg

City

port said

Orcid

-

Volume

44

Article Issue

1

Related Issue

53703

Issue Date

2025-01-01

Receive Date

2024-08-22

Publish Date

2025-01-01

Page Start

98

Page End

105

Print ISSN

2682-2091

Online ISSN

2812-5487

Link

https://jaet.journals.ekb.eg/article_412972.html

Detail API

http://journals.ekb.eg?_action=service&article_code=412972

Order

412,972

Type

Original Article

Type Code

1,142

Publication Type

Journal

Publication Title

Journal of Advanced Engineering Trends

Publication Link

https://jaet.journals.ekb.eg/

MainTitle

Experimental Study of the Impact of Flue Gas Recirculation on the Combustion Characteristics of LPG Diffusion Flame

Details

Type

Article

Created At

25 Feb 2025