Fatigue Analysis in a Bellow Expansion Joint Installed a Heat Exchanger

Optimization and Standardization of Flanged and Flued Expansion Joint Design

Journal of Pressure Vessel Technology ◽

10.1115/1.4043012 ◽

2019 ◽

Vol 141 (3) ◽

Cited By ~ 1

Author(s):

Kamlesh M. Chikhaliya ◽

Bhaveshkumar P. Patel

Keyword(s):

Heat Exchanger ◽

Optimum Design ◽

Design Methodology ◽

Thick Wall ◽

Process Conditions ◽

Expansion Joint ◽

Standard Requirement ◽

Spring Rate ◽

Tube Heat Exchanger ◽

Heat Exchanger Design

Flanged and flued type expansion joint (thick wall expansion bellow) used as an integral part of many shell and tube heat exchanger where process conditions produce differential expansion between shell and tubes. It provides flexibility for thermal expansion and also functions as a pressure retaining part. Design of expansion joints is usually based on trial and error method in which initial geometry must be assumed, and accordingly maximum stresses and spring rate are be calculated. Inadequate selection of geometry leads to higher tubesheet and bellow thickness, which increases cost of equipment. This paper presents standardization and optimum design approach of flange and flued expansion bellow fulfilling ASME VIII-1 and TEMA standard requirement. Methodology to define expansion bellow geometry is developed, and geometry dimensions are tabulated for expansion bellow diameter from 300 to 2000 mm and thickness from 6 to 30 mm. Each defined geometry is analyzed using finite element method, and maximum von Mises stresses are calculated for bellow axial displacement from 0.5 to 1.5 mm and internal pressure from 0.1 to 6.5 MPa. Spring rate is also calculated for each defined geometry for consideration in tubesheet calculation. Accordingly, optimum design methodology is developed, tested, and compared with existing design. Results depicted that proposed standardization approach and design methodology will optimize expansion bellow and tubesheet thickness and will also save considerable time in finalization of heat exchanger design.

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Accurate Numerical Simulation of Turbulent Natural Convection for Fatigue Analysis of Heat Exchanger High Temperature Difference Region

2018 International Conference on Power System Technology (POWERCON) ◽

10.1109/powercon.2018.8601823 ◽

2018 ◽

Author(s):

Long Teng ◽

Zhang Guihe ◽

Xiong GuangMing ◽

Jin Ting ◽

Liu Pan

Keyword(s):

Numerical Simulation ◽

High Temperature ◽

Natural Convection ◽

Heat Exchanger ◽

Temperature Difference ◽

Fatigue Analysis ◽

Turbulent Natural Convection

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Design and Fatigue Analysis of High Pressure Shell and Plate Heat Exchanger

IOP Conference Series Earth and Environmental Science ◽

10.1088/1755-1315/233/5/052025 ◽

2019 ◽

Vol 233 ◽

pp. 052025 ◽

Cited By ~ 1

Author(s):

Bin Li ◽

Song Guo ◽

Biao-Hua Cai ◽

Bo Wang

Keyword(s):

High Pressure ◽

Heat Exchanger ◽

Fatigue Analysis ◽

Plate Heat Exchanger ◽

Plate Heat

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Calculation of Axial Expansion in Vertical Shell and Tube Heat Exchanger with Expansion Joint

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.480-481.868 ◽

2011 ◽

Vol 480-481 ◽

pp. 868-871

Author(s):

Xiao Hong Li

Keyword(s):

Thermal Expansion ◽

Heat Exchanger ◽

Internal Pressure ◽

Engineering Practice ◽

Expansion Joint ◽

Shell Side ◽

Axial Elongation ◽

Tube Heat Exchanger ◽

Shell And Tube

In this paper, the axial elongation of vertical shell and tube heat exchanger with expansion joint are studied based on thetheories of static mechanics. The axial elongations of heat exchanger’s tube side and shell side that causes by thermal expansion, internal pressure and gravity are considered individually. By comparing and analyzing a typical example, it is shown that thermal expansion is the key reason other than internal pressure and gravity to the axial elongation of tube side and shell side structure. The results show that the axial elongation induced by internal pressure and gravity except thermal expansion is only 5% of total and can be eliminated in engineering practice.

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Thermo-structural fatigue analysis of shell and tube type heat exchanger

International Journal of Pressure Vessels and Piping ◽

10.1016/j.ijpvp.2017.03.004 ◽

2017 ◽

Vol 155 ◽

pp. 35-42 ◽

Cited By ~ 11

Author(s):

Rakesh Patil ◽

Soham Anand

Keyword(s):

Heat Exchanger ◽

Fatigue Analysis ◽

Structural Fatigue ◽

Tube Type ◽

Shell And Tube

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Direct Observation of Heat Exchanger Deposits by Cross Sectioning

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100061835 ◽

1967 ◽

Vol 25 ◽

pp. 364-365

Author(s):

R. W. Anderson ◽

D. L. Senecal

Keyword(s):

Electron Microscopy ◽

Transmission Electron Microscopy ◽

Heat Exchanger ◽

Direct Observation ◽

Cross Sections ◽

Preparation Method ◽

Specimen Preparation ◽

Flowing Water ◽

Transmission Electron ◽

Deposit Layer

A problem was presented to observe the packing densities of deposits of sub-micron corrosion product particles. The deposits were 5-100 mils thick and had formed on the inside surfaces of 3/8 inch diameter Zircaloy-2 heat exchanger tubes. The particles were iron oxides deposited from flowing water and consequently were only weakly bonded. Particular care was required during handling to preserve the original formations of the deposits. The specimen preparation method described below allowed direct observation of cross sections of the deposit layers by transmission electron microscopy.The specimens were short sections of the tubes (about 3 inches long) that were carefully cut from the systems. The insides of the tube sections were first coated with a thin layer of a fluid epoxy resin by dipping. This coating served to impregnate the deposit layer as well as to protect the layer if subsequent handling were required.

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