Abstract
2D temperature and concentration distribution plays an important role for the combustion structure and the combustor efficiency in engines, burners and so on. In this study, the theoretical and experimental research has been conducted in order to develop the noncontact and fast response 2D temperature and concentration distribution measurement method. The method is based on a computed tomography (CT) method using absorption spectra of water vapor at 1388nm. The CT tunable diode laser spectroscopy methods were applied to burners to measure 2D temperature distributions. The two dimensional temperature measurement technology in high temperature condition using 1343nm and 1388nm have also been discussed to demonstrate its applicability for various types of combustor.