On-line particle sizing of pneumatically conveyed biomass particles using piezoelectric sensors

Gao, Lingjun and Yan, Yong and Carter, Robert M. and Sun, Duo and Lee, Peter and Xu, Chuanlong (2013) On-line particle sizing of pneumatically conveyed biomass particles using piezoelectric sensors. Fuel, 113 . pp. 810-816. ISSN 0016-2361. (doi:https://doi.org/10.1016/j.fuel.2012.12.029) (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)

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. (Contact us about this Publication)
Official URL
http://dx.doi.org/10.1016/j.fuel.2012.12.029

Abstract

In recent years the firing of biomass at existing or new power plants has been widely adopted as one of the main technologies for reducing greenhouse gas emissions from power generation. The particle size distribution of pneumatically conveyed biomass correlates closely with combustion efficiency and pollutant emissions and should therefore be monitored continuously. In this paper, an instrumentation system based on a polyvinylidene difluoride (PVDF) piezoelectric film sensor is proposed, to achieve on-line continuous measurement of biomass particle size distribution. The sensor is attached to an impact bar protruding into the biomass particle flow. The relationship between the resulting impact signals and particle size is modelled mathematically, allowing particle size distribution to be inferred. Experimental work, undertaken with willow chips and miscanthus chips, has allowed both the effectiveness of the on-line particle sizing system and the validity of the mathematical model to be evaluated. The results indicate that the system has good linearity and repeatability.

Item Type: Article
Uncontrolled keywords: Biomass; Pulverised fuel; Particle size distribution; Piezoelectric sensor; Impact sensor
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: 18 Oct 2013 13:21 UTC
Last Modified: 28 May 2014 14:01 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/35522 (The current URI for this page, for reference purposes)
  • Depositors only (login required):