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Transient Thermal Stress Calculation of a Shell and Tube Condenser with Fixed Tubesheet
Author(s) -
Pernica Marek,
Létal Tomáš,
Lošák Pavel,
Naď Martin,
Reppich Marcus,
Jegla Zdeněk
Publication year - 2021
Publication title -
chemie ingenieur technik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.365
H-Index - 36
eISSN - 1522-2640
pISSN - 0009-286X
DOI - 10.1002/cite.202100036
Subject(s) - condenser (optics) , transient (computer programming) , shell (structure) , mechanics , stress (linguistics) , structural engineering , tube (container) , finite element method , thermal , shell and tube heat exchanger , steam turbine , materials science , load rejection , engineering , turbine , mechanical engineering , heat transfer , thermodynamics , physics , computer science , light source , linguistics , philosophy , optics , operating system
The present article deals with transient thermal stress calculation on a safety horizontal shell and tube condenser. This condenser is used in a power plant for cooling of hot steam diverted from the turbine in the case of its emergency shutdown. The standard stress calculation was provided according to the EN 13445 standard in steady regime. As consistent with this calculation, an expansion joint must be used on the shell. The main aim of this article is to describe a detailed calculation of the transient temperature field on the shell and tubes, using finite element method analysis, and longitudinal thermal stresses on the shell and tubes during the start‐up process. Transient analyses are useable for more accurate EN 13445 calculation and, furthermore, for fatigue calculation.