Eventos Anais de eventos
COBEM 2017
24th ABCM International Congress of Mechanical Engineering
Study of the heat transfer processes in gas turbine blades via finite element method
Submission Author:
Franciele Patricia Da Silva Muchick , MG
Co-Authors:
Franciele Patricia Da Silva Muchick, Sara Del Vecchio, Flavia de Souza Bastos
Presenter: Franciele Patricia Da Silva Muchick
doi://10.26678/ABCM.COBEM2017.COB17-0291
Abstract
Aerospace companies aim to produce turbines that can withstand higher temperatures, which improves exponentially the efficiency of them. Nevertheless, sometimes this is not possible, since the materials and the project itself cannot sustain those temperatures levels. In order to extend the efficiency of the turbine as a whole and according to the initial parameters selected, an optimum blade was designed using the Surrogate Loss System method, and then the heat transfer in the cross section of the blade was simulated via finite element method. Considering the blades made of stainless steel AISI 310, and submitting them to the temperature of the inlet gases in the turbine module, 1723.15K, a convection cooling was investigated, making the drained air of the last stage of the compressor to flow into the blade channels, which was at 823.15K. Six different configurations were simulated increasing the number of cooling channels and redistributing them along the cross section of the blade, resulting that the most efficient blade was the one that had as many cooling channels as possible, maintaining the mechanical structure integrity.
Keywords
Gas Turbine, Convection, Cooling Channels, conduction, Numerical simulation
