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http://dx.doi.org/10.7316/KHNES.2018.29.1.97

Calculating of 3-Dimensional Temperature Distribution for High-Temperature Exhaust Gas Using CT-TDLAS  

YOON, DONGIK (Division of Refrigeration & Air-conditioning Eng., Graduate School of Korea Maritime & Ocean University)
KIM, JOONHO (Division of Convergence Study on the Ocean Science and Technology, Graduate School of Korea Maritime & Ocean University)
JEON, MINGYU (Division of Advanced Technology and Science, Graduate School of Tokushima University)
CHOI, DOOWON (Division of Mechanical Eng., Korea Maritime & Ocean University)
CHO, GYEONGRAE (Division of Mechanical Eng., Korea Maritime & Ocean University)
DOH, DEOGHEE (Division of Mechanical Eng., Korea Maritime & Ocean University)
Publication Information
Transactions of the Korean hydrogen and new energy society / v.29, no.1, 2018 , pp. 97-104 More about this Journal
Abstract
3-dimensional temperature distribution of the exhaust gas of a fire flame of LPG have been measured by the constructed CT-TDLAS system. 3-Dimensional temperature distributions are measured by 2 layers of CT-TDLAS. Each layer has $8{\times}8$ laser beams implying the temperatures of 64 meshes are measured. SMART algorithm has been adopted for reconstructing the absorption coefficients on the meshes. The line strengths at 6 representative wave lengths of $H_2O$ have been used for obtaining the absorption spectra of the exhaust gas. The temperature distributions measured by the constructed CT-TDLAS have been compared with those by the thermocouples. The relative errors measured between by thermocouple and CT-TDLAS were 13% in average and 33% at maximum. The similarity of temperature distribution between by thermocouples and by CT-TDLAS has been shown at the lower layer than the upper layer implying an unstability of combustions.
Keywords
Computed tomography; Exhaust gas; Temperature distribution; 3-dimensional measurement; TDLAS;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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