Flow measurement of pneumatically conveyed biomass and coal particles using multi-channel electrostatic sensors

Qian, Xiangchen and Malmgren, A. and Yan, Yong (2011) Flow measurement of pneumatically conveyed biomass and coal particles using multi-channel electrostatic sensors. In: 7th International Symposium on Measurement Techniques for Multiphase Flows, 17-19 September 2011, Tianjin, China. (doi:https://doi.org/10.1109/IMTC.2011.5944180) (The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided)

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Official URL
http://dx.doi.org/10.1109/IMTC.2011.5944180

Abstract

Key parameters such as particle velocity and concentration of biomass-coal flow in fuel injection pipelines are useful to power plant operators to detect fuel supply problems at an early stage. This paper presents the use of a multi-channel electrostatic sensor with circular and arc-shaped electrodes for the on-line, continuous measurement of "local" and "mean" characteristics of the biomass-coal mixture flow. Experimental tests were conducted on a laboratory-scale particle flow test rig under various flow conditions. The results suggest that, due to physical differences between biomass and coal particles, the characteristics of the flow depend on the biomass proportion in the mixture. It is found that pure coal particles travel faster and carry more electrostatic charge than those of pure biomass particles. As more biomass is added to the coal flow, the overall velocity of the flow slows down, the electrostatic charge level decreases, and the flow becomes less stable compared to the pure coal flow.

Item Type: Conference or workshop item (Paper)
Uncontrolled keywords: biomass-coal flow; cross-correlation; electrostatic sensor; pulverised fuel; velocity measurement
Subjects: T Technology
Divisions: Faculties > Sciences > School of Engineering and Digital Arts
Faculties > Sciences > School of Engineering and Digital Arts > Instrumentation, Control and Embedded Systems
Depositing User: Tina Thompson
Date Deposited: 02 Dec 2013 15:00 UTC
Last Modified: 07 Apr 2014 10:49 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/37107 (The current URI for this page, for reference purposes)
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