KAJIAN NUMERIK PENGARUH GEOMETRI PIG LAUNCHER PADA PROSES PIG LAUNCHING DI PROYEK JAKARTA TANK TERMINAL (PHASE 2A1)

Abstract

Abstract - The current design of the cleaning tool used for oil pipe pipes is largely based on the results of experimental information. So there are still questions regarding the behavior of this tool during the launch of the Pig. This study aims to model the pig launching process using the CFD method and then analyze the influence of the pig launcher geometry on the process of translating the pig from the barrel into the reducer and get the force received by the pig on each variation, thus obtaining the most optimal pig launcher geometry. Foam pig and pig launcher are modeled using the Salome Platform and then imported into StarCCM+ software for grid independence, setup simulation, solution simulation and simulation parameter analysis. In the results of the simulation there is a color difference that indicates the big velocity in the pig launcher, the difference in each variation shows the angle of eccentric reducer also affects the velocity profile so that it affects pig translation behavior in the pig Launcher. The geometry of pig launcher eccentric reducer 5 ÌŠ is the most optimal geometry among the three variations based on the average of each parameter is the smallest translation in the mean y-axis and Z-7.32 e-05 m and 6.72 e-03 m, the average force largest directional axis x 3.332 N, the largest velocity average of the x-axis direction is 0.3425 m/s, and the smallest pig orientation is-0.2682 ÌŠ.