발간논문

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Vol.23, No.3, 187 ~ 193, 1985
Title
The Study on the Pressure of Bottom in the Submerged Gas injection water Model
정진호Jin Ho Zung, 최현수Hyun Soo Choi, 윤종규Jong Kyu Yoon
Abstract
The pressure at the bottom of the vessel was measured in the N₂and He gas bottom injection into water model system using the pressure transducer to understand the refractory wear at the tuyere mouth. The frequency of bubble formation was measured using the high speed cinematography along with the variation of pressure peaks to check the bubbling jetting transition. The actual pressures of bubbling and jetting were multiplied by each time fraction to obtain the average pressure at the bottom. The average pressure was markedly decreased when the gas velocity was increased over the apparent sonic velocity. The average pressure at the bottom decreased remarkably as the distance from the nozzle increased.
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