TY - JOUR
T1 - Residence time distribution measurements for model flows based on laser-induced breakdown spectroscopy
AU - Bong, Cheolwoo
AU - Jeong, Jinkyu
AU - Shin, Donghoon
AU - Im, Seong kyun
AU - Bak, Moon Soo
N1 - Funding Information:
This work was supported by the R&D Center for reduction of Non-CO2 Greenhouse gases (No. 2017002430007) funded by Korea Ministry of Environment (MOE) as Global Top Environment R&D Program, and by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIP) (No. 2015R1C1A1A01054264).
Publisher Copyright:
© 2019, KSME & Springer.
PY - 2019/4/1
Y1 - 2019/4/1
N2 - A method of measuring the residence time distribution (RTD) of flow is proposed using laser-induced breakdown spectroscopy (LIBS) with an argon tracer. As a proof-of-concept study, the method is applied to measure the RTDs of two flow devices that mimic a plug flow tube and a well-stirred vessel at cold (non-reacting) conditions. Argon emission lines are first observed to avoid interference with the lines of carbon, hydrogen, oxygen, and nitrogen and their areas are calibrated to provide the argon concentration. Argon is injected to the air stream as a Heaviside (step) function, and the RTDs are obtained by differentiating the temporal changes in the argon concentration traced using LIBS. The method is expected to be used for designing reactors and validating the results of numerical studies.
AB - A method of measuring the residence time distribution (RTD) of flow is proposed using laser-induced breakdown spectroscopy (LIBS) with an argon tracer. As a proof-of-concept study, the method is applied to measure the RTDs of two flow devices that mimic a plug flow tube and a well-stirred vessel at cold (non-reacting) conditions. Argon emission lines are first observed to avoid interference with the lines of carbon, hydrogen, oxygen, and nitrogen and their areas are calibrated to provide the argon concentration. Argon is injected to the air stream as a Heaviside (step) function, and the RTDs are obtained by differentiating the temporal changes in the argon concentration traced using LIBS. The method is expected to be used for designing reactors and validating the results of numerical studies.
KW - Argon
KW - Laser-induced breakdown spectroscopy
KW - Residence time distribution
UR - http://www.scopus.com/inward/record.url?scp=85064534968&partnerID=8YFLogxK
U2 - 10.1007/s12206-019-0349-3
DO - 10.1007/s12206-019-0349-3
M3 - Article
AN - SCOPUS:85064534968
SN - 1738-494X
VL - 33
SP - 1987
EP - 1992
JO - Journal of Mechanical Science and Technology
JF - Journal of Mechanical Science and Technology
IS - 4
ER -