Collision mechanism charge transfer

In this chapter, various forces affecting the motion of a gas-solid flow along with the momentum equations governing the motions of particles are delineated. The mechanisms of charge generation and charge transfer by collisions of particles are discussed. 

Charge transfer occurs when particles collide with each other or with a solid wall. For monodispersed dilute suspensions of gas-solid flows, Cheng and Soo (1970) presented a simple model for the charge transfer in a single scattering collision between two elastic particles. They developed an electrostatic theory based on this mechanism, to illustrate the interrelationship between the charging current on a ball probe and the particle mass flux in a dilute gas-solid suspension. This electrostatic ball probe theory was modified to account for the multiple scattering effect in a dense particle suspension [Zhu and Soo, 1992]. 

The book is arranged in two parts Part I deals with basic relationships and phenomena, including particle size and properties, collision mechanics of solids, momentum transfer and charge transfer, heat and mass transfer, basic equations, and intrinsic phenomena in gas-solid flows. Part II discusses the characteristics of selected gas-solid flow systems such as gas-solid separators, hopper and standpipe flows, dense-phase fluidized beds, circulating fluidized beds, pneumatic conveying systems, and heat and mass transfer in fluidization systems. 

This experiment shows that the harpoon mechanism can be observed through the spectroscopic observation of the charge transfer state Hg+Cl2. Moreover, it shows the interest of starting from a fixed geometry to understand the spectroscopy of the reactive collision complex. 

The first channel is formally endoergic charge transfer, which can occur through a variety of mechanisms. For example, in large impact parameter collisions, the time-dependent ion-induced polarization can result in electron hopping from C o to the M ion. This mechanism has been investigated for several atom-cluster ion systems [22], and is only efficient when the following condition is satisfied / AIP—hv, where AIP IP(CM) IP(Af)> v is the relative velocity of the M ion to the Cgo, and R is... 

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