Abstract
This research involves charge generation measurements for various
flammable fluids during filling of insulated tanks and relating static
charging with flow rate and physicochemical parameters, especially
changes in electrical conductivity. The objective is to correlate
static charge measured inside baffled metal and polyethylene tanks
as a function of impeller, Reynolds number, and the electrical conductivity
of both the hydrocarbon and the dispersed water phase for a variety
of flammable liquids. A product of the research is a correlation
for polyethylene and other plastic insulated tanks for transfers
of low conductivity liquid fuels. Also, a universal (dimensionless)
correlation that relates the charging data to the colloidal nature
of the mixture will be developed for static charge generation during
impeller mixing of light hydrocarbons containing various concentrations
of water in cylindrical tanks. The correlation of electrostatic data
from this research will help make it possible to control electrostatic
charges, and, as a result, greatly improve safety of operations involving
flammable fluids in industry.
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