Behavior of Top-Blown Jet under Reduced Pressure
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概要
- 論文の詳細を見る
In steelmaking, the top-blown oxygen jet is used in many different refining processes and its behavior is therefore an important factor in steel refining. Numerous studies have been conducted on jet behavior under atmospheric pressure conditions; however, its behavior under reduced pressure for vacuum refining processes is still not fully understood.In this study, jet behavior under reduced pressure was investigated by measuring the dynamic pressure of the jet. Also, numerical simulation, which was used for jet simulation in recent studies, was carried out to clarify the details of the jet behavior. The simulated results were compared with the measured data and the numerical simulation method was validated.As a result, the jet behavior was modeled using the numerical simulation, and the detailed effects of ambient pressure on the jet behavior were clarified. The potential core of the jet lengthened as the ambient pressure decreased, indicating that jet attenuation under reduced pressure is smaller than that under atmospheric pressure. Using this model, the effect of the nozzle shape on the post combustion behavior of the actual RH top-blown process could be explained.
- 社団法人 日本鉄鋼協会の論文
- 2007-01-15
著者
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Nabeshima Seiji
Steelmaking Research Department Steel Research Labs Jfe Steel Corp.
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Nabeshima Seiji
Steelmaking Research Dept. Steel Research Laboratory Jfe Steel Corporation
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SUMI Ikuhiro
Technology Planning Department, Head office, JFE Steel Corp.
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Sumi Ikuhiro
Technology Planning Department Head Office Jfe Steel Corp.
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Kishimoto Yasuo
Steelmaking Research Department Steel Research Laboratory Jfe Steel Corp.
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SUMI Ikuhiro
Steelmaking Research Dept., Steel Research Laboratory, JFE Steel Corporation
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Nabeshima Seiji
Steelmaking Research Department Steel Research Lab Jfe Steel Corporation
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OKUYAMA Goro
[not affiliated]
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MATSUNO Hidetoshi
[not affiliated]
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