Journal
POWDER TECHNOLOGY
Volume 382, Issue -, Pages 454-466Publisher
ELSEVIER
DOI: 10.1016/j.powtec.2020.11.015
Keywords
Pneumatic conveying; Slug flow; Dense phase; IMU
Categories
Funding
- Australian Research Councils Discovery Project funding scheme [DP160101436]
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This study used an inertial measurement unit to investigate dynamic relationships in horizontal slug flow pneumatic conveying. It found that particles propagate backwards through a slug relatively constantly and observed a pressure-velocity relationship theorized to be related to variations in the stationary layer ahead of the slugs. The study also demonstrated the IMU's capability in capturing nuanced features of slug motion.
This paper presents the results of using an inertial measurement unit (IMU) to study various dynamic relationships in horizontal slug flow pneumatic conveying. The accuracy of the IMU was assessed and compared to particle image velocimetry (PIV) and once good agreement was confirmed it was used to investigate various aspects of slug flow. Relative movement between core particles and slugs tails and heads was assessed using relative pressures and quantified times spent in a slug. It was found that the propagation of particles backwards through a slug is relatively constant. Pressure-velocity relationship was observed that was theorised to be related to variations in stationary layer ahead of the slugs. Observations of further nuanced features of slug motion are also included to demonstrate the capabilities of IMUs in capturing the many dynamic aspects of the flow. (C) 2020 Elsevier B.V. All rights reserved.
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