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김준섭(J.S. Kim),김규철(K.C. Kim),김기혁(G.H. Kim),장성철(S.C. Jang),우남섭(N.S. Woo),김영주(Y.J. Kim) 대한기계학회 2013 대한기계학회 춘추학술대회 Vol.2013 No.12
This study have goal with conceptual design for offshore structures of high pressure drop control valve for localization valve for development accomplished with flow analysis based on provision of ANSI B16.34, ANSI B16.10, ANSI B16.25 In order to localize the Offshore structures high pressure drop control valve. This study is numerical analysis for zambil offshore project of high pressure drop control valve. The solver which ANSYS workbench used for offshore structures analysis. The working fluids assumed the glycerin(C3H8O3). The structural analysis used ANSYS which is a commercial code. Stress analysis result of internal pressure in valve showed lower than yield strength. This is expect to need more detail design and verification for stem and disk structure.
황승진,김규철(K.C. Kim),김기혁(K.H. Kim),장성철(S.C. Jang),김영주(Y.J. Kim),우남섭(N.S. Woo) 대한기계학회 2013 대한기계학회 춘추학술대회 Vol.2013 No.12
This study have goal with conceptual design for Offshore Structures of high pressure control valve for localization. Gate valve for development accomplished with flow analysis based on provision of ANSI B16.34, ANSI B16.10, ANSI B16.25 In order to localize the Offshore Structures high pressure control valve. Flow decrease observed open valve that equal percentage flow paten which is general inclination of ball valve. Relation with flow and flow coefficient can not be proportional according to inlet pressure when compare with mass flow rate. Because flow coefficient have influence in flow and pressure difference. Namely, flow can be change even if it has same Cv value. The structural analysis used ANSYS which is a commercial code. Stress analysis result of internal pressure in valve showed lower than yield strength. This is expect to need more detail design and verification for stem and seat structure.
ALR변경에 따른 2상 내부 혼합형 노즐의 미립화 성능에 관한 연구
하만호(M. H. Ha),김규철(K. C. Kim),김남훈(N. H. Kim),남궁정환(J. H. NamKung),이삼구(S. G. Lee),노병준(B. J. Rho) 대한기계학회 2001 대한기계학회 춘추학술대회 Vol.2001 No.9
The Atomization Characteristics of two-phase internal mixing nozzle was investigated using 2-D PDPA system. To obtain the information of the nozzle, the mean velocities were measured at Z=10, 20, 50, 80, 120, 170㎜ from the nozzle exit. Moreover, SMD was along calculated at the same distance from the nozzle tip in order to describe the atomization characteristics according to the change of ALR. The ALR used in this experiment was changed from 0.1256 to 0.3238 and the mass rate of the liquid(water) was kept at 1.8g/s.