scholarly journals Numerical simulation of shell-and-tube heat exchanger and study of tube bundle support

2019 ◽  
Vol 504 ◽  
pp. 012060
Author(s):  
Q Guo ◽  
J S Wang ◽  
X Wang ◽  
C F Qian
Keyword(s):  
Numerical Simulation ◽  
Heat Exchanger ◽  
Tube Bundle ◽  
Tube Heat Exchanger ◽  
Shell And Tube

scholarly journals Numerical Simulation of Shell and Tube Heat Exchanger by using CFD

IARJSET ◽  
2017 ◽  
Vol 4 (1) ◽  
pp. 105-110
Author(s):  
Yadav G A ◽  
Janugade S V ◽  
Patil M R
Keyword(s):  
Numerical Simulation ◽  
Heat Exchanger ◽  
Tube Heat Exchanger ◽  
Shell And Tube

scholarly journals Numerical Simulation of the Shell-and-Tube Heat Exchanger: Influence of the Lower Flows and the Baffles on a Fluid Dynamics

2017 ◽  
Vol 07 (04) ◽  
pp. 349-361 ◽  
Author(s):  
Sebastião José dos Santos Filho ◽  
Josedite Saraiva de Souza ◽  
Antonio Gilson Barbosa de Lima
Keyword(s):  
Fluid Dynamics ◽  
Numerical Simulation ◽  
Heat Exchanger ◽  
Tube Heat Exchanger ◽  
Shell And Tube

scholarly journals PIV measurement of tube-side in a shell and tube heat exchanger

2018 ◽  
Vol 20 (1) ◽  
pp. 60-66 ◽  
Author(s):  
Kai Wang ◽  
Zixu Zhang ◽  
Qiong Liu ◽  
Xincheng Tu ◽  
Hyoung-Bum Kim
Keyword(s):  
Fluid Flow ◽  
Heat Exchanger ◽  
Tube Bundle ◽  
Flow Distribution ◽  
Minimal Effect ◽  
Vortex Generation ◽  
Tube Heat Exchanger ◽  
Piv Measurement ◽  
Shell And Tube ◽  
Better Than

Abstract In order to improve the performance of the shell and tube heat exchanger, a porous baffle and a splitter bar are employed in this research. Through the arrangement of the porous baffle in the tube-side inlet and the splitter bar in the tube, the flow distribution of liquid in the heat exchanger is improved. PIV technology is used to investigate the unsteady flow in the tube-side inlet and the outlet of different models. The porous baffle significantly improves the flow of fluid in the shell and tube heat exchanger, especially by eliminating/minimizing the maldistribution of fluid flow in the tube-side inlet. The performance of the arc baffle is better than that of the straight baffle. The splitter bar has a minimal effect on the flow field of the tube-side inlet, but it effectively improves the flow in the tube bundle and restrains the vortex generation in the tube-side outlet.

Numerical Study of Flow Induced Vibration of the Tube Bundle in a Lash Baffle Shell-and-Tube Heat Exchanger

2013 ◽  
Author(s):  
Haiyang Sun ◽  
Caifu Qian
Keyword(s):  
Heat Exchanger ◽  
Numerical Study ◽  
Tube Bundle ◽  
Lateral Displacement ◽  
Small Hole ◽  
Flow Induced Vibration ◽  
Tube Heat Exchanger ◽  
New Type ◽  
Shell And Tube ◽  
Jet Characteristics

In this paper, flow induced vibration of the tube bundle in a shell-and-tube heat exchanger with a new type of baffle, namely large-and-small-hole or LASH baffle, is studied numerically and compared with that in a segmental baffle shell-and-tube heat exchanger. It is found that as a parallel flow with jet characteristics between the large holes and tubes conducted by the LASH baffles, the fluid-induced vibration of tube bundle in the LASH baffle heat exchanger can be prevented and the lateral displacement variation is greatly decreased.

Investigation of a Chronic Leaking Problem of a Heat Exchanger Girth Flange

2015 ◽  
Author(s):  
Gys van Zyl
Keyword(s):  
Numerical Simulation ◽  
Heat Exchanger ◽  
Thermal Conditions ◽  
Phase Changes ◽  
Thermal Gradients ◽  
Simulation Studies ◽  
Tube Sheet ◽  
Tube Heat Exchanger ◽  
Standard Design ◽  
Shell And Tube

A shell-and-tube heat exchanger experiences frequent leaks from the gasket between the shell girth flange and tube sheet. The leaks manifest during start-up of the equipment and have traditionally been arrested by assembly retorque. An investigation was launched to understand the cause of recurring leaks and propose measures to eliminate the problem. A standard design review using the ASME BPVC [1] rules for bolted flanges found no concern with the design of the flanges. More detailed numerical simulation studies were performed that considered thermal conditions in addition to mechanical loads (pressure and bolt loads). The heat exchanger operation involves phase changes in the media on both the shell and tube sides (boiling/condensing) — as a result, the flanges experience rather severe thermal gradients during regular operation. These thermal gradients cause distortion of the tube sheet and girth flange and result in relaxation of the gasket compression in specific areas. This paper will provide a detailed discussion about the numerical simulation studies that were performed on the girth flange joint, as well as the modifications that were proposed to alleviate the problem.

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