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triboelectric charging duff

Particle dynamics simulations of triboelectric charging in

2019-3-26 · composed of the same material. Triboelectric charging of sand and dust grains has been found to generate large electric fields in sand storms [1] and dust devils [2,3]. The ash released in volcanic eruptions likewise may be-come charged, and the resulting electric fields can cause lightning in volcanic plumes [4]. Triboelectric charging also

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Triboelectric charging of lunar regolith simulant

Duff, N., and D. J. Lacks (2008), Particle dynamics simulation of tribo-electric charging in granular insulator systems, J. Electrost., 66, 51–57, doi:10.1016/j.elstat.2007.08.005. Fo¨ldi,T.,andS.Be´rczi(2002),Electrostaticmodelingofthelunarsoil-How electrostatic processes in the lunar dust may generate the ion-cloud levi-

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Particle dynamics simulations of triboelectric charging

2008-1-1 · Triboelectric charging of sand and dust grains has been found to generate large electric fields in sand storms and dust devils,. The ash released in volcanic eruptions likewise may become charged, and the resulting electric fields can cause lightning in volcanic plumes [4] .

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Particle dynamics simulations of triboelectric charging

The charging of particles in both of these contexts is the result of an age-old phenomenon known as triboelectric charging that describes the transfer of charged species between material surfaces

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Triboelectric charging of lunar regolith simulant

Triboelectric charging due to contact of chemically identical surfaces is still not a well understood process. In fact, it is counterintuitive that charging occurs at all in this case, since charge transfer is typically driven by differences in chemical properties (e.g., work function).

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Triboelectric charging of insulating polymers–some

2012-2-8 · Tribolectric charging results from contact between surfaces, but precisely what is meant by each is not defined or understood, as they relate to charging. The recent microscopic evidence that contact charging can result from material transfer provides incentive to examine how contact charging

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Tribo-electric charging of dielectric solids of identical

2019-6-13 · Particle size effects in particle-particle triboelectric charging studied with an integrated fluidized bed and electrostatic separator system Mihai A. Bilici,Joseph R. Toth III,R. Mohan Sankaran and Daniel J. Lacks

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Nathan DUFF Postdoctoral Research Scholar Ph.D

Nathan Duff Sanat K. Kumar Triboelectric charging occurs in granular systems composed of chemically identical particles even though there is no apparent driving force for charge transfer.

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Effect of humidity on triboelectric charging in a

2017-12-14 · Triboelectric charging model. Electrostatic charges are introduced to the simulations by allowing triboelectric charging using the model developed by Laurentie et al., 2013, Laurentie et al., 2010, in which the charging tendency of each material is characterized by an effective work function φ.

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Fundamental theories and basic principles of

2018-8-10 · Lacks D J, Duff N, Kumar S K. Nonequilibrium accumulation of surface species and triboelectric charging in single component particulate systems. Phys Rev Lett 100 :

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Particle dynamics simulations of triboelectric charging in

2019-3-26 · Triboelectric charging also occurs in particle-based industrial processes such as fluidized beds [5] and pneumatic conveyors [6], and pharmaceutical dispersal devices such as dry powder inhalers [7], where the charging can impact the perfor-mance of the process or device. Triboelectric charging behavior in granular materials is not well

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Particle dynamics simulations of triboelectric charging

2008-1-1 · Triboelectric charging also occurs in particle-based industrial processes such as fluidized beds and pneumatic conveyors,and pharmaceutical dispersal devices such as dry powder inhalers,where the charging can impact the performance of the process or device. Triboelectric charging behavior in granular materials is not well understood.

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Tribo-electric charging of dielectric solids of identical

2019-6-13 · Despite its long history and importance in many areas of science and technology, there is no agreement on the mechanisms responsible for tribo-electric charging, including especially the tribo-charging of chemically identical dielectric solids.

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Processes Free Full-Text Influence of Particle Charge

Triboelectric charging is a potentially suitable tool for separating fine dry powders, but the charging process is not yet completely understood. Although physical descriptions of triboelectric charging have been proposed, these proposals generally assume the standard conditions of particles and surfaces without considering dispersity. To better understand the influence of particle charge on

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Open Access proceedings Journal of Physics: Conference

of particle size distribution on triboelectric charging in granular insulator systems Nathan Duff and Daniel J Lacks-Self-powered In-plane Accelerometer Using Triboelectric Mechanism Rahul Kumar Gupta, Lokesh Dhakar and Chengkuo Lee-A triboelectric wind turbine for small-scale energy harvesting Matthias Perez, Sebastien Boisseau, Matthias

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Effect of humidity on triboelectric charging in a

2017-12-14 · 1. Introduction. Triboelectric charging of granular matter has been studied for decades (Matsusaka et al., 2010, Lacks and Mohan, 2011).It has been observed in multiple experimental studies that triboelectric charging can cause particle agglomeration and wall-particle adhesion in granular (Lim et al., 2006, LaMarche et al., 2010) and gas-solid flows (Rokkam et al., 2013, Jalalinejad et al

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Triboelectric charging of identical mate- rials by

2021-4-5 · Triboelectric charging of identical mate-rials by asymmetric rubbing Richard Pham, Keith M. Forward, R. Craig Virnelson, R. Mohan Sankaran, and Daniel J. Lacks Dept. of Chemical Engineering Case Western Reserve University phone: (1) 216-368-4238 e-mail: [email protected]

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Contact Charging Between Particles; Some Current

2021-4-14 · Charging in Granular Insulator Systems”, J. of Electrostatics, Vol. 65, pp 107-112, (2007) [15] N. Duff and D.J. Lacks, “Particle Dynamics Simulations of Triboelectric Charging in Granular Insulator

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Fundamental theories and basic principles of

2018-8-10 · Long-term observation of the triboelectric effect has not only proved the feasibility of many novel and useful tribo-devices (e.g., triboelectric nanogenerators), but also constantly motivated the exploration of its mysterious nature. In the pursuit of a comprehensive understanding of how the triboelectric process works, a more accurate description of the triboelectric effect and its related

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Nathan Duff Raleigh, North Carolina Professional

• Studied triboelectric charging in granular materials using an ad hoc hard sphere model. • Developed a force field model for a bent-core surfactant molecule and analyzed its behavior on a

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