Modelling the Electrostatic Ignition Hazards associated with the Cleaning of Tanks Containing Flammable Atmospheres
Williams, T. J. and Jones, R. T. (2001) Modelling the Electrostatic Ignition Hazards associated with the Cleaning of Tanks Containing Flammable Atmospheres. Journal of Loss Prevention in the Process Industries, 14
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High-velocity jets of water or solvent are commonly used to clean tanks which have contained flammable liquids. This process creates a charged mist which can lead to the generation of an electrostatic spark or brush charge that may ignite any flammable atmosphere present. Operators need to know the risk associated with their processes and modelling can help assess it. Numerical techniques are available to solve electrostatic problems for general tank geometries but tend to be expensive and difficult to use. This paper shows how Green�s function can be used to solve Poisson�s equation for a vessel of cylindrical geometry and finite length containing charged mist. For uniform space charge density, an analytical solution can readily be implemented using cheaper proprietary software. An example from an industrial investigation is described in which the internal walls of a cylindrical vessel were washed with solvent jets.
|Additional Information:||pp 129-133|
|Divisions:||Faculty of Physical Sciences and Engineering > Electronics and Computer Science
|Date Deposited:||02 May 2002|
|Last Modified:||27 Mar 2014 19:58|
|Further Information:||Google Scholar|
|ISI Citation Count:||0|
|RDF:||RDF+N-Triples, RDF+N3, RDF+XML, Browse.|
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