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physics.app-ph2024
Unmasking hidden ignition sources: A new approach to finding extreme charge peaks in powder processing
Holger Grosshans, Wenchao Xu, Simon Jantač +1
Powders acquire a high electrostatic charge during transport and processing. Consequently, in the aftermath of dust explosions, electrostatic discharge is often suspected to be the…
physics.flu-dyn2024
Influence of the Reynolds number from to on size-dependent bipolar charging
Simon Jantač, Holger Grosshans
We recently found wall-bounded turbulence to suppress and control bipolar triboelectric charging of particles of identical material. This control is due to fluid modifying the moti…
cond-mat.soft2024
Polarity switch of PMMA powder transported through a PMMA duct
Wenchao Xu, Holger Grosshans
During pneumatic conveying, powder electrifies rapidly due to the high flow velocities. In our experiments, the particles even charge if the conveying duct is made of the same mate…