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http://dx.doi.org/10.5762/KAIS.2014.15.7.4093

Coupled Thermal-Structural Analysis of the Combustor Assembly of 200kW Micro Gas Turbine Engine  

Park, Sangjin (Department of Aerospace engineering, Sunchon National University)
Rhee, Huinam (School of Mechanical and Aerospace Engineering, Sunchon National University)
Lee, Sang Min (STX Heavy Industries Co., Ltd.)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.15, no.7, 2014 , pp. 4093-4099 More about this Journal
Abstract
In this study, the thermal-structural behavior of the combustor assembly of 200 kW micro gas turbine system was performed. The typical combustor assembly consists of a Liner, Inner & Outer Case, Burner and Nozzle ring, etc. There are some gaps and friction elements between the components to compensate for the different thermal expansions of various components. Therefore, the developed finite element model includes nonlinear elements. The boundary support conditions of the combustor assembly significantly affect the stress distribution due to the high temperature gradient. This paper deals with parametric studies to quantitatively determine the effects of the variation of the support conditions on the stress distribution and deformation of various components of combustor assembly. These results may be useful for the design of the combustor assembly.
Keywords
Micro Gas Turbine; Combustor; Thermal Stress; Elastic Support;
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