A Theoretical Study of the Influence of the Injection Velocity on the Heat and Fluid Flow in a Soaking-Pit Furnace when using Flameless Oxyfuel Heating

A Theoretical Study of the Influence of the Injection Velocity on the Heat and Fluid Flow in a Soaking-Pit Furnace when using Flameless Oxyfuel Heating

Par Jonsson

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Mersedeh Ghadamgahi

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Patrik Ound

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Nils.A.I Andresson

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KTH Royal Institute of Technology

A Theoretical Study of the Influence of the Injection Velocity on the Heat and Fluid Flow in a Soaking-Pit Furnace when using Flameless Oxyfuel Heating

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Abstract

Flameless oxyfuel combustion is one of the most recently developed combustion systems that has the potential to provide better combustion efficiency combined with a lower pollution production compared to conventional combustion systems. However, a lack of knowledge exists with respect to the influence of different parameters on the combustion results when using the flameless oxyfuel technology. Thus, in the current study a previously validated CFD model is used to investigate the effect of the injection velocity on the temperature distribution, recirculation ratio of the flue gases, flame volume, turbulence intensity, and flame radiation to the ingots. The results show that an increased injection velocity highly affects the temperature uniformity inside the chamber. More specifically, the maximum temperature difference in the flame region drops from 8.59% to 3.78% for burner capacities of 130 kW and 907 kW, respectively.

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(null). Supplemental Information 1: The raw data collected, observed, or obtained through experiments during the research process.
Oxy-fuel combustion technology for coal-fired power generation 4.
Junjun Guo,Zhaohui Liu (2018). Heat Transfer During Oxy-fuel Combustion and Boiler Design.
(2006). Studies on low-intensity oxy-fuel burner.
Mersedeh Ghadamgahi,Patrik Ölund,Tomas Ekman,Nils Andersson,Pär Jönsson (2018). Numerical and experimental study on flameless oxy-fuel combustion in a pilot- scale and a real-size industrial furnace.
Mersedeh Ghadamgahi,Patrik Ölund,Tomas Ekman,Nils Andersson,Pär Jönsson (2018). Numerical and experimental study on flameless oxy-fuel combustion in a pilot- scale and a real-size industrial furnace.

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Funding

No external funding was declared for this work.

Conflict of Interest

The authors declare no conflict of interest.

Ethical Approval

No ethics committee approval was required for this article type.

Data Availability

Not applicable for this article.

How to Cite This Article

Par Jonsson. 2017. \u201cA Theoretical Study of the Influence of the Injection Velocity on the Heat and Fluid Flow in a Soaking-Pit Furnace when using Flameless Oxyfuel Heating\u201d. Global Journal of Research in Engineering - G: Industrial Engineering GJRE-G Volume 17 (GJRE Volume 17 Issue G1).

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GJRE Volume 17 Issue G1

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Journal Specifications

Crossref Journal DOI 10.17406/gjre

Print ISSN 0975-5861

e-ISSN 2249-4596

Keywords

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Classification

GJRE-G Classification FOR Code: 290502

Submission ReceivedDecember 11, 2016
Peer Review Double Blind
Handling Editor
Accepted January 2, 2017
Published January 15, 2017

Version of record

v1.2

Issue date

June 2, 2017

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Article Matrices

Total Score: 104

Country: Sweden

Subject: Global Journal of Research in Engineering - G: Industrial Engineering

Authors: Mersedeh Ghadamgahi, Patrik Ound, Nils.A.I Andresson, Par Jonsson (PhD/Dr. count: 0)

View Count (all-time): 206

Total Views (Real + Logic): 3739

Total Downloads (simulated): 1887

Publish Date: 2017 06, Fri

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Total Views: 3739

Total Downloads: 1887

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