Spectroscopic Investigation of the Combustion Process Within Gas Turbines

摘要

This study is an investigative research project that combines molecular spectroscopic analysis and optical fiber technology to determine the combustion gas temperature and species concentration within a production gas turbine under real engine operating conditions. With this technique, an optical fiber sensor is mounted inside a combustion chamber. The flame spectral radiation is collected by the sensor and then transmitted to a spectrometer. Spectral emission features of different molecular species are examined by the spectrometer. The detected spectral signals are analyzed to determine the combustion temperature and mixture composition.