Выходит 18 номеров в год
ISSN Печать: 1064-2285
ISSN Онлайн: 2162-6561
Indexed in
VALIDATION OF THE REAL-TIME 2D TEMPERATURE MEASUREMENT METHOD USING THE CT TUNABLE DIODE LASER ABSORPTION SPECTROSCOPY
Краткое описание
The two-dimensional (2D) temperature and concentration distribution plays an important role for the combustion structure and combustor efficiency in engines, burners, gas turbines, and so on. Recently, as a multispecies measurement technique with high sensitivity and high response, the tunable diode laser spectroscopy (TDLAS) has been developed and applied to actual engine combustions. With these engineering developments, transient phenomena such as start-ups and load changes in engines have been gradually elucidated in various conditions. In this study, a 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 the computed tomography (CT) using the absorption spectra of water vapor at 1388 nm. The computed tomography tunable diode laser spectroscopy (CT-TDLAS) method was employed in engine exhausts to measure 2D temperature distribution. The measured 2D temperature shows good agreement with the temperature measured by a thermocouple. The temporal and spatial resolutions of this method have also been discussed to demonstrate its applicability to various types of combustor.
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CHOI DOOWON, CHO GYONGRAE, SHIM JOONHWAN, DEGUCHI YOSHIHIRO, KIM DONGHYUK, DOH DEOGHEE, 2D Temperature Measurement of CT-TDLAS by Using Two-Ratios-of-Three-Peaks Algorithm, Transactions of the Korean hydrogen and new energy society, 27, 3, 2016. Crossref
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Jeon Min-Gyu, Deguchi Yoshihiro, Kamimoto Takahiro, Doh Deog-Hee, Cho Gyeong-Rae, Performances of new reconstruction algorithms for CT-TDLAS (computer tomography-tunable diode laser absorption spectroscopy), Applied Thermal Engineering, 115, 2017. Crossref
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CHOI DOOWON, CHO GYONGRAE, DEGUCHI YOSHIHIRO, BAEK TAESIL, DOH DEOGHEE, Study on Optimal Coefficients of Line Broadening Function for Performance Enhancements of CT-TDLAS, Transactions of the Korean hydrogen and new energy society, 27, 6, 2016. Crossref
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Wang Zhenzhen, Kamimoto Takahiro, Deguchi Yoshihiro, Industrial Applications of Tunable Diode Laser Absorption Spectroscopy, in Temperature Sensing, 2018. Crossref
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Hayashi Daisuke, Nakai Junya, Minami Masakazu, Fujita Kazuki, Kamimoto Takahiro, Deguchi Yoshihiro, CH4 Concentration Distribution in a Semiconductor Process Chamber Measured by the CT-TDLAS, ECS Journal of Solid State Science and Technology, 7, 11, 2018. Crossref
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Hayashi Daisuke, Nakai Junya, Minami Masakazu, Kamimoto Takahiro, Deguchi Yoshihiro, Simultaneous measurement of CH4 concentration and temperature distributions in a semiconductor process chamber, Journal of Physics D: Applied Physics, 52, 48, 2019. Crossref
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Wang Zhenzhen, Kamimoto Takahiro, Deguchi Yoshihiro, Zhou Wangzheng, Yan Junjie, Tainaka Kazuki, Tanno Kenji, Watanabe Hiroaki, Kurose Ryoichi, Two dimensional temperature measurement characteristics in pulverized coal combustion field by computed tomography-tunable diode laser absorption spectroscopy, Applied Thermal Engineering, 171, 2020. Crossref
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Jeon Min-Gyu, Doh Deog-Hee, Deguchi Yoshihiro, Optical temperature measurement method of premixed flames using a multi-laser system, Journal of Mechanical Science and Technology, 35, 6, 2021. Crossref