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Thermal-structural Coupled Field Analysis for Fire Safety Type Ball Valve
김시범(Si-Pom Kim),이준호(Joon-Ho Lee),이권희(Kwon-Hee Lee),전락원(Rock-Won Jeon),도태완(Tae-Wan Do) 한국기계가공학회 2011 한국기계가공학회지 Vol.10 No.3
The safety of transporting equipment in a cryogenic condition is one of important problems under the circumstances that the application weight of natural gas is gradually increasing. As a larger disaster may be generated by leakage of oil or gas from valves in case of fire occurrence of a ship, the present research applied a numerical analysis method on thermal stress distribution and deformation, etc. to the design of ball valves satisfying fire safety test’s specification(API607) to prevent this. In addition, the present research progressed fire safety tests and compared the test result with numerical analysis results. The Max stress by parts was confirmed through thermal analysis of major parts to evaluate safety. The fire safety test was progressed according to the regulation of API607.
주름 각도와 피치에 따른 판형 열교환기 전열특성에 관한 수치해석 연구
강대기(Dae-Ki Kang),김시범(Si-Pom Kim),황일주(Il-Ju Hwang),이재훈(Jae-Hoon Lee),도태완(Tae-Wan Do),여운엽(Woon-Yeop Yeo) 한국기계가공학회 2012 한국기계가공학회지 Vol.11 No.3
For numerical analysis of the plate heat exchanger, a lot of time are required in modeling work and calculation. Whereas, this paper was purposed to identify characteristic of the plate heat exchanger through simplification of modeling by interpreting the numerical analysis proximity with the actual model. This study was also examined temperature difference between inlet side and outlet side, inner pressure drop, heat transfer area of plate and change of heat transfer coefficient on the plate depending on the inner corrugation angle and corrugation pitch of a herring bon pattern of the plate heat exchanger among chevron types of the plate exchanger.