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The influence of humidity, temperature and other variables on the electric charging characteristics of particulate aluminium hydroxide in gas-solid pipeline flows

The influence of humidity, temperature and other variables on the electric charging characteristics of particulate aluminium hydroxide in gas-solid pipeline flows

Woodhead, Steve and Armour-Chelu, David (2003) The influence of humidity, temperature and other variables on the electric charging characteristics of particulate aluminium hydroxide in gas-solid pipeline flows. Journal of Electrostatics, 58 (3-4). pp. 171-183. ISSN 0304-3886 (doi:https://doi.org/10.1016/S0304-3886(03)00046-9)

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Abstract

This paper reports work undertaken to explore the influence of air relative humidity, temperature and particle size on the electric charging characteristics of particulate aluminium hydroxide during transport in a pneumatic pipeline. Limited data with regard to the influence of flow suspension density and velocity is also reported. Values of air relative humidity from 35% to 50% and temperatures of 19degreesC and 30degreesC are investigated, along with mean particle sizes ranging from 49 to 98 mum. Flow velocities between 16 and 36 m/s and suspension density values of 50 and 10 mg/m(3) are also investigated. The presented data suggest that a reduction in temperature and an increase in relative humidity generally lead to a reduction in charge level. A peak in charge level is experienced for a particle size in the region of 80 mum.

Item Type: Article
Uncontrolled Keywords: triboelectric charging, particulate material, measurement, gas–solid flow, powder, humidity, charging of particles, aluminum hydroxide
Subjects: T Technology > T Technology (General)
T Technology > TK Electrical engineering. Electronics Nuclear engineering
Pre-2014 Departments: School of Engineering > Department of Computer & Communications Engineering
School of Engineering
Related URLs:
Last Modified: 14 Oct 2016 09:10
Selected for GREAT 2016: None
Selected for GREAT 2017: None
Selected for GREAT 2018: None
Selected for GREAT 2019: None
URI: http://gala.gre.ac.uk/id/eprint/3818

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