Fatigue performance evaluation of plate and shell heat exchangers

被引：19
|
作者：
Martins, G. S. M. [1 ]
da Silva, R. P. P. D. [1 ]
Beckedorff, L. [1 ]
Monteiro, A. S. [2 ]
de Paiva, K., V [1 ]
Oliveira, J. L. G. [1 ]
机构：
[1] Univ Fed Santa Catarina, Dept Mobil Engn, BR-89218035 Joinville, SC, Brazil
[2] Petrobras SA, CENPES, BR-21941970 Rio De Janeiro, RJ, Brazil
来源：
INTERNATIONAL JOURNAL OF PRESSURE VESSELS AND PIPING | 2020年 / 188卷 / 188期
关键词：
Fatigue life; Plate and shell heat exchangers; Weld; Fatigue strength reduction factors;
D O I：
10.1016/j.ijpvp.2020.104237
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Fatigue life of plate and shell heat exchangers has been determined by experiments. Tests occurred with the aid of a pneumatic-hydraulic setup in which plate pack samples were internally pressurized by water. The samples were exposed to cyclic pressure loads varying from ambient to service pressure in the range 1.0-1.4 MPa, typical operating pressure range of crude oil production sites. Stress determination was possible due to strain gauge measurements. A heterogeneous stress field occurs along the corrugated plate due to its complex geometry. The external welded region is the preferential failure location. An average stress-life curve has been provided with 50% failure probability in accordance to ISO-12107. Fatigue strength reduction factors at the critical welded locations were determined via elastic stress analysis as proposed by ASME procedure. PSHE useful life increases with decreasing spacing between plates.
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收藏
页数：8
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