Effect of Hole Distance and Hole Number on Bubble Behavior during Gas Injection with Multi-Hole Orifices

Fang Jiang; Guo Guang Cheng

doi:10.4028/www.scientific.net/AMR.295-297.1113

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 295-297Effect of Hole Distance and Hole Number on Bubble...

Effect of Hole Distance and Hole Number on Bubble Behavior during Gas Injection with Multi-Hole Orifices

Abstract:

Physical model experiments have been performed to clarify the effect of hole distance and hole number of multi-hole orifices on bubble behavior during metal refining process. It is found kA/V firstly decreases and then increases with the hole distance increasing. However, kA/V shows little further increase when hole distance exceeds a critical value. There exists an optimal hole distance for the multi-hole orifice, which is dependent on the gas flow rate, the hole diameter and the hole number in the multi-hole orifice. kA/V firstly increases with the hole number increasing, and then remains unchanged when hole number exceeds a critical value. There also exists an optimal hole number for the multi-hole orifice, which is closely related to the gas flow rate.

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Periodical:

Advanced Materials Research (Volumes 295-297)

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1113-1119

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.295-297.1113

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Online since:

July 2011

Authors:

Fang Jiang, Guo Guang Cheng

Keywords:

Bubble, Gas Injection, Metal Refining, Multi-Hole Orifice, Physical Model, Volumetric Mass Transfer Coefficient

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