| dc.description.abstract | Buoyancy Weighing-Bar Method is a new method to measure particle
size distribution of the settling particles and floating particles. This
method can produce the high accuracy result in particle size
distributions measurement with a simple operation and low-cost of
equipment. In this method, Weighing-bar is hung in the suspension
with different density to measure droplet size distribution. The
principle of this experiment that measurement the density change in a
suspension due to particle migration is measured by weighing
buoyancy against a weighing bar hung in the suspension. In this
experiment we focused to develop the buoyancy weighing-bar method
for measure droplet size distribution in the liquid-liquid systems
which is kerosene in water and we also investigate the separation time
of kerosene and water with the variation of concentration between
kerosene and water = 99% : 1%, 98% : 2 %, 97% : 3%, 96% : 4%,
95% : 5% and variation of rod diameter = 5mm, 10 mm, 15 mm and
20 mm. The result data obtained by the buoyancy weighing-bar
method were compared with gas chromatography. The purity of water
from the concentration 99% water : 1 % kerosene at 100 second is
94,9496% and at 680 second is 97,1326%. The droplet size
distribution is calculated by Stokes law and Allen law. The result data
obtained by the buoyancy weighing-bar method were compared with
Coulter Counter method. Based on the result data obtained, the droplet
size distribution which is calculated by Allen law in the concentration
of water : kerosene = 99% : 1%, 98% :2 % and 95% : 5% were
comparable with Coulter Counter method. | en_US |
