Flow characteristics by particle image velocimetry in liquefied natural gas vaporizer model with several baffles  

作　　者：H.S.Chung S.M.Sayeed-Bin-Asad Berkah Fajar Y.H.Shin H.M.Jeong 

机构地区：[1]Department of Mechanical and Precision Engineering,Institute of Marine Industry,445 Inpyeong Dong,Tongyeong,Gyeongsangnamdo,650-160,Korea [2]Department of Mechanical and Precision Engineering,Gyeongsang National University,445 Inpyeong Dong,Tongyeong,Gyeongsangnamdo,650-160,Korea [3]Department of Mechanical Engineering,University of Diponegoro,Semarang,Indonesia

出　　处：《Journal of Central South University》2011年第5期1719-1725,共7页中南大学学报（英文版）

基　　金：supported by the National Research Foundation of Korea Grant funded by the Korean Government (NRF-2010-013-D00007);2010 Research Professor Fund of Gyeongsang National University,Korea

摘　　要：Shell-and-tube vaporizers are the most commonly used and dominated types of vaporizers in liquefied natural gas （LNG） realm. Due to efficient performance, shell-side flow in this type of vaporizers has received considerable attention and has been investigated extensively. However, the detailed flow structure in the shell needs to be determined for reliable and effective design. Therefore, the objective of this study was to clarify the flow structure in shell by particle image velocimetry （PIV）. Experiments were conducted using two types of model; 15% baffle cut having inlet and outlet positions !n the direction of 90° to the cut and 30% baffle cut having inlet and outlet positions in the direction of 180° to the cut. Each test section is 169 mm in inner diameter and 344.6 mm in length. The flow features were characterized in different baffle cuts with regards to the velocity vector field and velocity distribution. The results show that the flow characteristics of 15% baffle cut type vaporizer are comparable to those of 30% baffle cut type vaporizer.Shell-and-tube vaporizers are the most commonly used and dominated types of vaporizers in liquefied natural gas (LNG) realm.Due to efficient performance,shell-side flow in this type of vaporizers has received considerable attention and has been investigated extensively.However,the detailed flow structure in the shell needs to be determined for reliable and effective design.Therefore,the objective of this study was to clarify the flow structure in shell by particle image velocimetry (PIV).Experiments were conducted using two types of model;15% baffle cut having inlet and outlet positions in the direction of 90° to the cut and 30% baffle cut having inlet and outlet positions in the direction of 180° to the cut.Each test section is 169 mm in inner diameter and 344.6 mm in length.The flow features were characterized in different baffle cuts with regards to the velocity vector field and velocity distribution.The results show that the flow characteristics of 15% baffle cut type vaporizer are comparable to those of 30% baffle cut type vaporizer.

关 键 词：particle image velocimetry liquefied natural gas VAPORIZER VORTEX TURBULENCE 

分 类 号：TE626.7[石油与天然气工程—油气加工工程]