Flow processes in a radiant tube burner: isothermal flow

Nick Tsioumanis, John G. Brammer, J. Hubert

Research output: Contribution to journalArticle

Abstract

This paper presents the first part of a study of the combustion processes in an industrial radiant tube burner (RTB). The RTB is used typically in heat-treating furnaces. The work was initiated because of the need for improvements in burner lifetime and performance. The present paper is concerned with the flow of combustion air; a future paper will address the combusting flow. A detailed three-dimensional computational fluid dynamics model of the burner was developed, validated with experimental air flow velocity measurements using a split-film probe. Satisfactory agreement was achieved using the k-e turbulence model. Various features along the air inlet passage were subsequently analysed. The effectiveness of the air recuperator swirler was found to be significantly compromised by the need for a generous assembly tolerance. Also, a substantial circumferential flow maldistribution introduced by the swirler is effectively removed by the positioning of a constriction in the downstream passage.
Original languageEnglish
Pages (from-to)103-111
Number of pages9
JournalFuel
Volume87
Issue number1
DOIs
Publication statusPublished - Jan 2008

Fingerprint

Fuel burners
Heat treating furnaces
Air
Recuperators
Air intakes
Flow measurement
Turbulence models
Flow velocity
Velocity measurement
Dynamic models
Computational fluid dynamics

Keywords

  • radiant tube burner
  • computational fluid dynamics
  • swirling flow

Cite this

Tsioumanis, N., Brammer, J. G., & Hubert, J. (2008). Flow processes in a radiant tube burner: isothermal flow. Fuel, 87(1), 103-111. https://doi.org/10.1016/j.fuel.2007.03.048
Tsioumanis, Nick ; Brammer, John G. ; Hubert, J. / Flow processes in a radiant tube burner: isothermal flow. In: Fuel. 2008 ; Vol. 87, No. 1. pp. 103-111.
@article{d2d80e23a67943d5be2398f17ae8012f,
title = "Flow processes in a radiant tube burner: isothermal flow",
abstract = "This paper presents the first part of a study of the combustion processes in an industrial radiant tube burner (RTB). The RTB is used typically in heat-treating furnaces. The work was initiated because of the need for improvements in burner lifetime and performance. The present paper is concerned with the flow of combustion air; a future paper will address the combusting flow. A detailed three-dimensional computational fluid dynamics model of the burner was developed, validated with experimental air flow velocity measurements using a split-film probe. Satisfactory agreement was achieved using the k-e turbulence model. Various features along the air inlet passage were subsequently analysed. The effectiveness of the air recuperator swirler was found to be significantly compromised by the need for a generous assembly tolerance. Also, a substantial circumferential flow maldistribution introduced by the swirler is effectively removed by the positioning of a constriction in the downstream passage.",
keywords = "radiant tube burner, computational fluid dynamics, swirling flow",
author = "Nick Tsioumanis and Brammer, {John G.} and J. Hubert",
year = "2008",
month = "1",
doi = "10.1016/j.fuel.2007.03.048",
language = "English",
volume = "87",
pages = "103--111",
journal = "Fuel",
issn = "0016-2361",
publisher = "Elsevier",
number = "1",

}

Tsioumanis, N, Brammer, JG & Hubert, J 2008, 'Flow processes in a radiant tube burner: isothermal flow', Fuel, vol. 87, no. 1, pp. 103-111. https://doi.org/10.1016/j.fuel.2007.03.048

Flow processes in a radiant tube burner: isothermal flow. / Tsioumanis, Nick; Brammer, John G.; Hubert, J.

In: Fuel, Vol. 87, No. 1, 01.2008, p. 103-111.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Flow processes in a radiant tube burner: isothermal flow

AU - Tsioumanis, Nick

AU - Brammer, John G.

AU - Hubert, J.

PY - 2008/1

Y1 - 2008/1

N2 - This paper presents the first part of a study of the combustion processes in an industrial radiant tube burner (RTB). The RTB is used typically in heat-treating furnaces. The work was initiated because of the need for improvements in burner lifetime and performance. The present paper is concerned with the flow of combustion air; a future paper will address the combusting flow. A detailed three-dimensional computational fluid dynamics model of the burner was developed, validated with experimental air flow velocity measurements using a split-film probe. Satisfactory agreement was achieved using the k-e turbulence model. Various features along the air inlet passage were subsequently analysed. The effectiveness of the air recuperator swirler was found to be significantly compromised by the need for a generous assembly tolerance. Also, a substantial circumferential flow maldistribution introduced by the swirler is effectively removed by the positioning of a constriction in the downstream passage.

AB - This paper presents the first part of a study of the combustion processes in an industrial radiant tube burner (RTB). The RTB is used typically in heat-treating furnaces. The work was initiated because of the need for improvements in burner lifetime and performance. The present paper is concerned with the flow of combustion air; a future paper will address the combusting flow. A detailed three-dimensional computational fluid dynamics model of the burner was developed, validated with experimental air flow velocity measurements using a split-film probe. Satisfactory agreement was achieved using the k-e turbulence model. Various features along the air inlet passage were subsequently analysed. The effectiveness of the air recuperator swirler was found to be significantly compromised by the need for a generous assembly tolerance. Also, a substantial circumferential flow maldistribution introduced by the swirler is effectively removed by the positioning of a constriction in the downstream passage.

KW - radiant tube burner

KW - computational fluid dynamics

KW - swirling flow

UR - http://www.scopus.com/inward/record.url?scp=36049028435&partnerID=8YFLogxK

UR - https://www.sciencedirect.com/science/article/pii/S0016236107001809?via%3Dihub

U2 - 10.1016/j.fuel.2007.03.048

DO - 10.1016/j.fuel.2007.03.048

M3 - Article

VL - 87

SP - 103

EP - 111

JO - Fuel

JF - Fuel

SN - 0016-2361

IS - 1

ER -