A tubesheet is one of the most important components in the design of a steam surface condenser. In this work, an analytical method to determine the strength of a tubesheet is established based on a beam-strip model. The validation of this beam-strip model is confirmed through a finite-element method (FEM) with the same boundary conditions and mechanical properties of the tubesheet. Effects of various parameters that affect the strength of the tubesheet are analyzed, including the tubesheet thickness, applied loading, fixity type, and length of the unperforated zone. The modeling results show that the most significant factor influencing the maximum stress that the tubesheet can bear is the tubesheet thickness, while other parameters have a weaker impact. From an engineering point of view, the beam-strip model is a useful method for the design of tubesheet.

References

References
1.
Cobo
,
A.
,
Mirapeix
,
J.
,
Linares
,
F.
,
Piney
,
J. A.
,
Solana
,
D.
, and
López-Higuera
,
J. M.
,
2007
, “
Spectroscopic Sensor System for Quality Assurance of the Tube-To-Tubesheet Welding Process in Nuclear Steam Generators
,”
IEEE Sens. J.
,
7
(
9
), pp.
1219
1224
.10.1109/JSEN.2007.901042
2.
Shalaby
,
H. M.
,
2006
, “
Failure Investigation of Muntz Tubesheet and Ti Tubes of Surface Condenser
,”
Eng. Failure Anal.
,
13
, pp.
780
788
.10.1016/j.engfailanal.2005.02.003
3.
Qian
,
C. F.
,
Yu
,
H. J.
, and
Yao
,
L.
,
2009
, “
Finite Element Analysis and Experimental Investigation of Tubesheet Structure
,”
ASME J. Pressure Vessel Technol.
,
131
, p.
011206
.10.1115/1.3027456
4.
Behseta
,
K.
, and
Schindler
,
S.
,
2006
, “
On the Design of the Tubesheet and the Tubesheet-to-Shell Junction of a Fixed Tubesheet Heat Exchanger
,”
Int. J. Pressure Vessels Piping
,
83
, pp.
714
720
.10.1016/j.ijpvp.2006.08.002
5.
Al-Aboodi
,
A.
,
Merah
,
N.
,
Shuaib
,
A. R.
,
Al-Nassar
,
Y.
, and
Al-Anizi
,
S. S.
,
2008
, “
Modelling the Effects of Initial Tube-Tubesheet Clearance, Wall Reduction and Material Strain Hardening on Rolled Joint Strength
,”
ASME J. Pressure Vessel Technol.
,
130
, p.
041204
.10.1115/1.2967809
6.
Wang
,
H. F.
, and
Sang
,
Z. F.
,
2005
, “
Effect of Geometry of Grooves on Connection Strength of Hydraulically Expanded Tube-to-Tubesheet Joints
,”
ASME J. Pressure Vessel Technol.
,
127
(
4
), pp.
430
435
.10.1115/1.2061007
7.
Merah
,
N.
,
Al-Zayer
,
A.
,
Shuaib
,
A.
, and
Arif
,
A.
,
2003
, “
Finite Element Evaluation of Clearance Effect on Tube-to-Tubesheet Joint Strength
,”
Int. J. Pressure Vessels Piping
,
80
, pp.
879
885
.10.1016/j.ijpvp.2003.08.007
8.
Allam
,
M.
, and
Bazergui
,
A.
,
2002
, “
Axial Strength of Tube-to-Tubesheet Joints: Finite Element and Experimental Evaluations
,”
ASME J. Pressure Vessel Technol.
,
124
(
1
), pp.
22
31
.10.1115/1.1398555
9.
Reinhardt
,
W. D.
, and
Mangalaramanan
,
S. P.
,
2001
, “
Efficient Tubesheet Design Using Repeated Elastic Limit Analysis Technique
,”
ASME J. Pressure Vessel Technol.
,
123
, pp.
197
202
.10.1115/1.1359526
10.
Su
,
W. X.
,
Ma
,
N.
,
Sang
Z. F.
, and
Widera
,
G. E. O.
,
2009
, “
Investigation of Fatigue Strength of Welded Tube-to-Tubesheet Joint
,”
ASME J. Pressure Vessel Technol.
,
131
, p.
041205
.10.1115/1.3122024
11.
O'donnell
,
W. J.
, and
Langer
,
B. F.
,
1962
, “
Design of Perforated Plates
,”
Trans. ASME J. Eng. Ind., Ser. B
,
84
, pp.
307
320
.10.1115/1.3667483
12.
Osweiller
,
F.
,
2000
, “
Tubesheet Heat Exchangers: New Common Design Rules in UPV, CODAP, and ASME
,”
ASME J. Pressure Vessel Technol.
,
122
, pp.
317
324
.10.1115/1.556188
13.
Boon
G. B.
, and
Walsh
R. A.
,
1964
, “
Fixed Tube-Sheet Heat Exchangers
,”
ASME J. Appl. Mech.
,
31
, pp.
175
180
.10.1115/1.3629583
14.
O'donnell
,
W. J.
,
1973
, “
Effective Elastic Constants for the Bending of Thin Perforated Plates With Triangular and Square Penetration Patterns
,”
ASME J. Eng. Ind.
,
95
, pp.
121
128
.10.1115/1.3438086
15.
Jones
,
D. P.
,
Gordon
,
J. L.
,
Hutula
,
D. N.
,
Holliday
,
J. E.
, and
Jandrasits
,
W. G.
,
1999
, “
Application of Equivalent Elastic Methods in Three-Dimensional Finite Element Structural Analysis
,”
ASME J. Pressure Vessel Technol.
,
121
(
3
), pp.
283
290
.10.1115/1.2883704
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