o:2497 STRESS-STRAIN ANALYSIS OF HOT WATER BOILER TUBE PLATE IN START-UP REGIME en The paper presents stress-strain analysis of hot water fired tube boiler with diversion chamber’s screened wall for start-up regime. Previous experiences of hot water boilers indicate failures in operation and the occurrence of break-down which represent consequence of bringing the plant into the condition characterized by parameters that are higher than allowed. The structure of hot water boilers is exposed not only to high pressures but also to high tem-peratures that are the reason that thermal stresses are dominant in those boiler elements, especially with thick walls. High thermal stresses occur at the highest tempera-ture gradients and at transient operating modes. Experi-mental results of measured temperatures of hot water boiler tube plate in the start-up regime are presented, used as boundary conditions for numerical calculation. Stress-strain analysis is performed by using FEM. STRUCTURAL INTEGRITY AND LIFE Vol. 21, No 3, pp. 266–272 1552101 0352-017x 2024-03-30T20:53:38.746Z 44 yes 46 Milena Rajić Faculty of Mechanical Engineering, University of Nis, Nis, Serbia 0000-0002-3313-4182 2021 46 Dragoljub Živković Faculty of Mechanical Engineering, University of Nis, Nis, Serbia 46 Milan Banić Faculty of Mechanical Engineering, University of Nis, Nis, Serbia 46 Marko Mančić Faculty of Mechanical Engineering, University of Nis, Nis, Serbia application/pdf 1031509 https://phaidrani.ni.ac.rs/o:2497 no yes 18 70 92000001 18A15