dc.contributor.author | Meng, J | |
dc.contributor.author | Xie, W | |
dc.contributor.author | Runge, K | |
dc.contributor.author | Bradshaw, D | |
dc.date.accessioned | 2016-10-17T09:28:18Z | |
dc.date.issued | 2015-11-01 | |
dc.description.abstract | Measuring turbulence in an industrial flotation environment has long been problematic due to
the opaque, aggressive and abrasive three-phase environment in a flotation cell. One of the promising
measurement techniques is Electrical Resistance Tomography (ERT). By measuring the conductivity
distribution across a measurement area, ERT has been adopted by many researchers to monitor and
investigate many processes involving multiphase flows. In the research outlined in this paper, a
compact ERT probe was built and then used to measure the conductivity distribution within a 60L
flotation cell operated with water and air. Two approaches were then developed to process the ERT
data and estimate turbulence related parameters. One is a conductivity variance method and the other
is based on the Green-Kubo relations. Both rely and use the fluctuation in the ERT measurement
caused by bubbles moving through the measurement area, changing the density of the fluid. Results
from both approaches were validated by comparing results produced by the ERT probe in a 60 litre
flotation cell operated at different air rates and impeller speeds to that measured using an alternative
turbulence measurement device. The second approach is considered superior to the first as the first
requires the development of auxiliary information which would not usually be known for a new system. | en_GB |
dc.description.sponsorship | The AMIRA P9P project is acknowledged for sponsoring and funding this research. | en_GB |
dc.identifier.citation | Vol. 26, 115305 | en_GB |
dc.identifier.doi | 10.1088/0957-0233/26/11/115305 | |
dc.identifier.uri | http://hdl.handle.net/10871/23929 | |
dc.language.iso | en | en_GB |
dc.publisher | IOP Publishing | en_GB |
dc.subject | electrical resistance tomography | en_GB |
dc.subject | flotation | en_GB |
dc.subject | turbulence measurement | en_GB |
dc.title | Measuring turbulence in a flotation cell using electrical resistance tomography | en_GB |
dc.type | Article | en_GB |
dc.date.available | 2016-10-17T09:28:18Z | |
dc.identifier.issn | 0957-0233 | |
dc.description | This is the author accepted manuscript. The final version is available from the publisher via the DOI in this record. | en_GB |
dc.identifier.journal | Measurement Science and Technology | en_GB |