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ISSN Online: 2379-1748

ISBN Flash Drive: 978-1-56700-469-4

ISBN Online: 978-1-56700-470-0

Second Thermal and Fluids Engineering Conference
April, 2-5, 2017, Las Vegas, NV, USA

Application of Computed Tomography - Tunable Diode Laser Absorption Spectroscopy to Combustion Analysis

Get access (open in a dialog) pages 585-593
DOI: 10.1615/TFEC2017.cbe.017716

摘要

Two dimensional (2D) temperature and concentration distribution plays an important role for the combustion structure and the combustor efficiency in engines, burners, gas turbines and so on. In this study, the theoretical and experimental research has been conducted in order to develop the non-contact and fast response 2D temperature and concentration distribution measurement method. The method is based on a computed tomography (CT) using absorption spectra of molecules such as H2O, CH4, NH3, CO2 and so on. CT-TDLAS was applied to several combustion fields such as a pulverized coal burner and a high pressure constant volume combustor to demonstrate its applicability to various types of combustor. The time resolved 2D temperature distributions were successfully measured using 16-path and 32-path CT-TDLAS measurement cells. CT-TDLAS has the kHz response time and the method enables the real-time 2D and 3D species concentration measurement to be applicable to the combustion analysis.