TY - JOUR
TI - Construction optimization of hot water fire-tube boiler using thermomechanical finite element analysis
AU - Rajić Milena N
AU - Banić Milan S
AU - Živković Dragoljub S
AU - Tomić Miša M
AU - Mančić Marko V
JN - Thermal Science
PY - 2018
VL - 22
IS - 15
SP - 1511
EP - 1523
PT - Article
AB - Exploitation experience of hot water boiler plants indicates relatively  frequent and permanent breakdowns resulting from the accident state of  various elements of the boiler. In addition to the damages caused by the  corrosion processes and inadequate management of the plant, the phenomena of  fatigue of boiler elements exposed to high pressures and temperatures can  occur. Due to high pressure and temperature certain boiler elements are  exposed to, high strain and stress of these elements can eventually lead to  breakdowns. In this paper, a hot water fire tube boiler, produced by  "Minel-Kotlogradnja" Belgrade, type TE110V, installed within the plant  "Technical Faculties" at Faculty of Mechanical Engineering in Nis, Serbia,  is analyzed. Thermomechanical stress-strain analysis is performed with loads  typically occurring during operation. Finite element analysis is performed  using ANSYS Workbench 17 Software package, while the CAD model is formed  using SOLID WORKS 2015. The results were used to investigate and to give  recommendations for the thickness of tube plate of the first reversing  chamber based on determined functional dependence of equivalent stress in  the tube plate from the thickness of the plate. The noted functional  dependence was determined by Kriging response surface based on results of  virtual numerical experiment with different thicknesses of the tube plate.