TS-52 Upstream Flow Characterization of the AGATA Catalytic Combustor by 2D LDV Measurements(Session C-3 Measurements)
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概要
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AGATA (Advanced Gas Turbine for Automobiles) is an european program involving the development of three major components: a catalytic combustor, a static ceramic heat exchanger and a ceramic turbine wheel for a 60kW turbogenerator in a hybrid electric vehicle. These three elements, which are of critical importance to achieve low pollutant emissions and high efficiency, have been designed, manufactured and tested as part of a full-scale feasibility study. The participants in AGATA represent companies and research institutes in the turbine, catalytic materials and ceramic fields in both France and Sweden. This paper presents the results of the catalytic combustion chamber inlet velocity field characterization. The main objective of this work was to control the gas flow profile in this region in order to obtain high hetero/homogeneous combustion efficiency and low pollutants emission. The first part of this paper outlines the test rig and the catalytic combustor used for the tests and located at ONERA Palaiseau (France). The second part describes the characterization of the velocity field at the catalytic combustion section inlet with 2D (radial and axial components) Laser Doppler Velocimetry (LDV) measurements. A comparison with hot wire measurements has been also done. As a conclusion it is shown that a high turbulence level exists in the venturi ; this will enhance mixing and fuel vaporization process.
- 公益社団法人日本ガスタービン学会の論文
- 1999-11-14