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http://dx.doi.org/10.5762/KAIS.2020.21.4.9

Development of Integrated Model of Boiler and Its Supporting Steel Structure of Coal-Fired Power Plant for Finite Element Analysis  

Lee, Boo-Youn (Dept. of Mechanical & Automotive Engineering, Keimyung University)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.21, no.4, 2020 , pp. 9-19 More about this Journal
Abstract
An integrated finite element model composed of a boiler and its supporting steel structure for a 375-MW coal-fired power plant was developed. This study used the developed model for seismic analysis using SAP2000 software. For the complex superheaters, reheaters, economizers, and membrane walls of the boiler, which consisted of numerous tubes, a method of modeling them by the equivalent elements in the viewpoint of stiffness and/or inertia was proposed. In addition, a method of modeling for the connection between the boiler and steel structure was proposed. Many hangers that connect the boiler to the girders of a steel structure were transformed into equivalent hangers by decreasing the number. The displacements of the boiler stoppers on the buckstay and the posts of the steel structure were coupled by considering their interface condition. Static analysis under the self-loading condition for the developed integrated model was implemented, and the results of deformation indicated that the behavior of the steel members and the major components of the boiler were appropriate. In conclusion, the integrated model developed in this study can be used to evaluate the safety of the boiler and steel structure under seismic loads.
Keywords
Boiler; Coal-Fired Power Plant; Finite Element Analysis; Integrated Model; Steel Structure;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
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