Measurement of particulate volume fraction in a coflow diffusion flame using transient thermocouple technique

Rolando A., D'Alessio A., D'Anna A., Allouis C. G., Beretta F., Minutolo P.

COMBUSTION SCIENCE AND TECHNOLOGY, vol.176, pp.945-958, 2004 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 176
  • Publication Date: 2004
  • Doi Number: 10.1080/00102200490428558
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.945-958
  • Middle East Technical University Affiliated: No


Transient-thermocouple-based measurements have been used to detect soot and nanoparticles in a coflowing diffusion flame of ethylene. Total particulate volume fractions are measured as a function of the radial coordinate at different axial locations and are compared with the results obtained by UV-visible absorption measurements. The good agreement between the two independent measurements demonstrates that transient-thermocouple measurement is a powerful technique to measure total particulate volume fraction and its emissivity. This technique also furnishes point measurements which, therefore, are not affected by inversion procedures.