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ID 114420
Title Alternative
Validation of real-time 2D temperature measurement method using CT tunable diode laser absorption spectroscopy
Author
Kamimoto, Takahiro The University of Tokushima
Choi, Doo Won The University of Tokushima|Korea Maritime University
Shim, Joon Hwan Korea Maritime University
Keywords
Measurement and instrumentation
Combustion
IC engines
2D temperature measurement
Tunable diode laser absorption spectroscopy (TDLAS)
CT
Content Type
Journal Article
Description
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. Recently, as a multi-species measurement technique with high sensitivity and high response, tunable diode laser spectroscopy (TDLAS) has been developed and applied to the 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, 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 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 a 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.
Journal Title
Heat Transfer Research
ISSN
10642285
21626561
NCID
AA10852545
Publisher
Begell House|American Society of Thermal and Fluids Engineers
Volume
47
Issue
2
Start Page
193
End Page
202
Published Date
2016
EDB ID
DOI (Published Version)
URL ( Publisher's Version )
FullText File
language
eng
TextVersion
Author
departments
Science and Technology