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177290

Influence of a Bluff-Body Flame Holder on Blowout Limits of a Premixed Flame into a Stream of Air.

Article

Last updated: 04 Jan 2025

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Subjects

-

Tags

Mechanical Power Engineering

Abstract

Flame stabilization in a stream of air is an indispensable process in most industrial combustion devices. This is performed by means of either the recirculation zone formed in the wake of a bluff - body or step, the recirculation flow in the central region of a swirling flow or a hot body. 
In this study an experimental investigation on the influence of a bluff-body flame holder on blow out limits of a premixed flame into a stream of air has been carried out. A premixed mixture of commercial butane-air is introduced co-axially through a stream of air inside a transparence cylindrical combustion duct. A cylindrical and spherical bluff - body flame holders have been determined. Measurements of critical equivalence ratio6 at lean and rich blowout limits have been obtained. AISO, measurements of temperature and concentrations in the resulting flames are carried out. The results show that the blowout limits are increased as flame holder size increased. Both, lean, rich and high speed blowout limits of flames are widened with increase in dimensions of flame holders. The results also demonestrated that further extended are obtained with cylindrical flame holders' rather than with the spherical one. 
 
 
 

DOI

10.21608/bfemu.2021.177290

Authors

First Name

Salah

Last Name

El-Emam

MiddleName

Hassan Youssef

Affiliation

Assistant Professor of Mechanical Power Engineering Department, Faculty of Engineering, Mansoura University, Mansoura, Egypt.

Email

sh_elemam@mans.edu.eg

City

Mansoura

Orcid

-

First Name

A.

Last Name

Desoky

MiddleName

A.

Affiliation

Mechanical Power Engineering Department, Faculty of Engineering, Mansoura University, Mansoura, Egypt.

Email

-

City

Mansoura

Orcid

-

Volume

10

Article Issue

2

Related Issue

25503

Issue Date

1985-12-01

Receive Date

2021-04-16

Publish Date

2020-12-01

Page Start

45

Page End

56

Print ISSN

1110-0923

Online ISSN

2735-4202

Article File

BFEMU_Volume 10_Issue 2_Pages 45-56.pdf

PDF . 103.8kB

Link

https://bfemu.journals.ekb.eg/article_177290.html

Detail API

https://bfemu.journals.ekb.eg/service?article_code=177290

Order

54

Type

Research Studies

Type Code

1,205

Publication Type

Journal

Publication Title

MEJ. Mansoura Engineering Journal

Publication Link

https://bfemu.journals.ekb.eg/

MainTitle

Influence of a Bluff-Body Flame Holder on Blowout Limits of a Premixed Flame into a Stream of Air.

Details

Type

Article

Created At

22 Jan 2023