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논문 기본 정보

자료유형
학술저널
저자정보
Chang-Won Kang (Korea South-East Power) Chung-Seob Yi (Korea Lift Collage) Chi-Woo Lee (Gyeongsang National University)
저널정보
한국기계가공학회 한국기계가공학회지 한국기계가공학회지 제20권 제9호
발행연도
2021.9
수록면
63 - 69 (7page)

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초록· 키워드

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This study aims to determine the flow characteristics of a one-inch small ball valve and glove valve used in industrial plants. The flow was changed through an experimental equipment, and the internal flow characteristics of the valves were compared. Considering the pressure drop, the decrease in the slope of the ball valve based on the degree of the valve opening was relatively greater than that of the glove valve; further, the slope of the glove valve was gentle while the pressure drop was high. The flow velocity of the ball valve remains consistent after the valve was opened by 70%, whereas the flow velocity of the glove valve constantly increased. The valve loss factor of the ball valve was relatively low compared with that of the glove valve. When the valve was opened by 20%, which is the beginning stage of the valve opening, the valve loss factor of the ball valve was high and gradually became low. This is a structural problem of the ball valve, and the loss factor is significant because the flow path installed at the ball valve has a considerably small area. However, the overall loss factor of glove valve is high because it has a complicated structure of flow path.

목차

ABSTRACT
1. Introduction
2. Valve Flow Measurement
3. Results and Review of Valve Flow Rate Experiment
4. Conclusion
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