Journal of the Korean Society of Manufacturing Process Engineers (한국기계가공학회지)

The Korean Society of Manufacturing Process Engineers (한국기계가공학회)
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Experiment and Flow Analysis of the Flow Coefficient Cv of a 1 inch Ball Valve for a Thermal Power Plant

화력발전소용 1인치 볼 밸브 유량계수 Cv에 관한 유동해석 및 실험에 관한 연구

  • Kang, Chang-Won (Gyeongnam National University of Science and Technology, Graduate School) ;
  • Yi, Chung-Seob (Korea Lift Collage, School of Lift Engineering) ;
  • Lee, Chi-Woo (Gyeongnam National University of Science and Technology, Automotive Engineering)
  • 강창원 (경남과학기술대학교 대학원) ;
  • 이중섭 (한국승강기대학교 승강기공학부) ;
  • 이치우 (경남과학기술대학교 자동차공학과)
  • Received : 2019.01.03
  • Accepted : 2019.01.12
  • Published : 2019.03.31
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Abstract

The purpose of this study was to analyze and test the flow rate of a 1-inch ball valve used in a thermal power plant. To identify the flow-rate characteristics, numerical analysis was conducted and an experimental apparatus of the valve flow rate coefficient was used to compare the flow coefficient Cv values. To determine the internal pressure distribution, the sites of opening ball valves and flow fields were investigated. In particular, a smaller the valve opening resulted in a more complicated the flow field of the ball. The valve flow characteristic test showed that the Cv value and flow rate increased with increasing valve-opening rate and the secondary function was performed. The pressure drop increased as the valve opening rate decreased. In addition, the experimental results for the flow analysis are similar to the numerical analysis results.

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References

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