About the journal

Cobiss

Thermal Science 2022 Volume 26, Issue 3 Part A, Pages: 2135-2145
https://doi.org/10.2298/TSCI210313207R
Full text ( 2967 KB)
Cited by


Experimental and numerical stress and strain analysis of the boiler reversing chamber tube plate

Rajić Milena N. ORCID iD icon (Faculty of Mechanical Engineering, University of Niš, Niš, Serbia), milena.rajic@masfak.ni.ac.rs
Živković Dragoljub S. (Faculty of Mechanical Engineering, University of Niš, Niš, Serbia)
Banić Milan S. ORCID iD icon (Faculty of Mechanical Engineering, University of Niš, Niš, Serbia)
Mančić Marko V. ORCID iD icon (Faculty of Mechanical Engineering, University of Niš, Niš, Serbia)
Maneski Taško Đ. ORCID iD icon (Faculty of Mechanical Engineering, University of Belgrade, Belgrade, Serbia)
Milošević Miloš S. ORCID iD icon (Innovation Centre of Faculty of Mechanical Engineering, University of Belgrade, Belgrade, Serbia)
Mitrović Nenad R. ORCID iD icon (Faculty of Mechanical Engineering, University of Belgrade, Belgrade, Serbia)

Boilers are one of the most used units for both heat generation plants and industry systems. Their operation is subjected to different working loads and maintenance requirements. Exploitation experience points out critical boiler zones where failures and break downs typically occur. This paper analyzes critical zones in hot water fire-tube boiler. Experimental procedure was performed on the model of this type of boilers and its critical element. The tube plate of hot water boiler was identified as the most critical one. Experimental analysis and numerical model verification were performed using Aramis system based on 3-D digital image correlation method. Numerical analysis was done in ANSYS software package and verification of results was done based on measurements obtained by strain gauges and local measurements performed by the Aramis system. Stress-strain analysis indicates the critical zones of boiler tube plate. The character of change parameters such as strain and stress occurring in the critical zones can be verified both by experimental and numerical data. The paper presents a novel approach in experimental and numerical analyses that can be conducted in similar units and used for existing unit optimization, as well as for new product testing on different loads and provide opportunity for further development and improvement for practical industrial application.

Keywords: hot water boilers, 3-D digital image correlation, finite element analysis

Show references