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Journal of Mechanical Science and Technology

, Volume 33, Issue 4, pp 1987–1992 | Cite as

Residence time distribution measurements for model flows based on laser-induced breakdown spectroscopy

  • Cheolwoo Bong
  • Jinkyu Jeong
  • Donghoon Shin
  • Seong-kyun Im
  • Moon Soo BakEmail author
Article
  • 16 Downloads

Abstract

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.

Keywords

Residence time distribution Laser-induced breakdown spectroscopy Argon 

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Copyright information

© KSME & Springer 2019

Authors and Affiliations

  • Cheolwoo Bong
    • 1
  • Jinkyu Jeong
    • 1
  • Donghoon Shin
    • 2
  • Seong-kyun Im
    • 3
  • Moon Soo Bak
    • 1
    Email author
  1. 1.School of Mechanical EngineeringSungkyunkwan UniversitySuwon-si, Gyeonggi-doKorea
  2. 2.School of Mechanical EngineeringKookmin UniversitySeoulKorea
  3. 3.Department of Aerospace and Mechanical EngineeringUniversity of Notre DameNotre DameUSA

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