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gas-turbine-model-combustor
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Experimental investigation on the effects of swirlers configurations and air inlet partitioning in a partially premixed double high swirl gas turbine model combustor
, Article Journal of Energy Resources Technology, Transactions of the ASME ; Volume 143, Issue 1 , 2021 ; 01950738 (ISSN) ; Rekabdarkolaei, B. A ; Rastaaghi, H. R ; Sharif University of Technology
American Society of Mechanical Engineers (ASME)
2021
Abstract
In this work, a double-high swirl gas turbine model combustor (GTMC) has been experimentally investigated to identify the effects of air partitioning and swirlers geometry on combustion characteristics in terms of flame stability, exhaust gas temperature, NOx generation, and combustion efficiency. This high swirl model combustor is originally developed in the German Aerospace Center (DLR) and known as GTMC and recently reconstructed at Sharif University's Combustion Laboratory (named as SGTMC). Here, SGTMC run for liquefied petroleum gas (LPG) fuel and air oxidizer at room temperature and atmospheric pressure. Eleven different burner geometries, M1-M11, are considered for the aims of this...
Numerical investigation of a double-swirled gas turbine model combustor using a RANS approach with different turbulence-chemistry interaction models
, Article Energy and Fuels ; Volume 30, Issue 8 , 2016 , Pages 6764-6776 ; 08870624 (ISSN) ; Fazlollahi Ghomshi, A ; Sharif University of Technology
American Chemical Society
Abstract
In this work, numerical investigation of a gas turbine model combustor (GTMC) was carried out using two different turbulence-chemistry interaction models: the EDC (eddy dissipation concept) and TPDF (transported probability density function). GTMC with good optical access for laser measurements provides a useful database for swirling CH4/Air diffusion flames at atmospheric pressure. Modeling was performed by solving Reynolds-averaged Navier-Stokes (RANS) and Reynolds stress model (RSM) equations for a two-dimensional (2D) axisymmetric computational domain accompanied by swirl and the combustion chamber was investigated for both reacting and nonreacting conditions. A detailed reduced...
Investigation of flame structure and precessing vortex core instability of a gas turbine model combustor with different swirler configurations
, Article Physics of Fluids ; Volume 34, Issue 8 , 2022 ; 10706631 (ISSN) ; Asadi, B ; Beige, A. A ; Sharif University of Technology
American Institute of Physics Inc
2022
Abstract
Numerical simulation of a dual-swirl gas turbine model combustor is performed under cold and reacting flow conditions using a three-dimensional unsteady Reynolds-averaged Navier-Stokes approach. A multi-species chemical mechanism is used in this study for the analysis of the numerous radicals participating in the ignition process and the flame structure. The other objective of this study is to investigate the flow field under different injector configurations, including both co-rotating and counter-rotating swirler arrangements, different swirl intensities, and vane areas. A comparison of the results with experimental data shows that the predicted velocity and temperature profiles follow the...