The 68th JSAP Spring Meeting 2021
Mar 16 - Mar 19, 2021Online Virtual Meeting
The 68th JSAP Spring Meeting 2021
Mar 16 - Mar 19, 2021Online Virtual Meeting
[16p-Z13-2]Numerical Study on Electrostatic Field Distribution Generated from Charged Powders in Silo during Power Loading Process Calculated by COMSOL Multiphysics
〇Kwang Seok Choi1, Yuki Osada2, Teruo Suzuki2(1.JNIOSH, 2.Kasuga Denki.)
Keywords:
electrostatic discharges,powder,silo
In this paper, distribution of electric field generated from powder bed in silo was investigated using finite element method. Volume charge density was taken for powders into account from charge mass ratio of it and other experimental parameters. As for the results, the area near to the wall of silo which powders are accumulated is the strongest of electric field, followed in order by the wall of silo at powder surface and the center of it. Moreover, it was confirmed that electrostatic discharges were generated at the beginning of powder input (about 5 kg).