Dual fibre optical probe measurements of solids volume fraction in a circulating fluidized bed
Artikel i vetenskaplig tidskrift, 2005

The calibration of a dual fibre optical probe was experimentally investigated in a circulating fluidized bed. The particle volume fraction registered by the optical probe was compared to pressure drop measurements for a range of operating conditions. A theoretical calibration theory was applied to the probe signal to obtain the local and instantaneous particle volume fraction. It was found that glare points on the particles and the beam length from the probe to the particle determines the curvature of the calibration function to a large extent.

Circulating fluidized bed

Solids volume fraction

Optical probe measurement


Anna Magnusson

Chalmers University of Technology

Robert Rundqvist

Chalmers University of Technology

Alf-Erik Almstedt

Chalmers, Tillämpad mekanik, Förbränning och Flerfasströmning

Filip Johnsson

Chalmers, Energi och miljö, Energiteknik

Powder Technology

0032-5910 (ISSN)

Vol. 151 1-3 19-26