With the dimentional analysis, the fluid momentum transfer resistance criterion(R_L~*, RL), the heat transfer resistance criterion(R_H~*,R_H), the mass transfer resistance criterion R_M~*, R_M [*: denotes unsteady state], the buoyance resistance criterion R_(by) and the liquid membrane energy criterion E_σ were derived from the principal physical parameter of ILM.
Volatile matter quantities of styrene/polystyrene (ST/PS) system at different times were determined by dynamic supercritical fluid devolatilization (SFDV) using pure CO 2 at 343 K at 18 MPa and different flows of 1.93,3.27 and 5.62 L·min -1 gas CO 2,to investigate mass transfer out of polymer matrix in dynamic SFDV process.
alculation of mass transfer with equation presented by grant (1986) shows that SiO2,Al2O3, FeO, Ni, Zn, As and Ba are gained components, while CaO, MgO, Na2O, Sc, V, Co,Bi, Sr and REE are lost components for both gold and silver mineralizations in the Changkeng deposit.
It is suggested by calculation that less than 31% of the increment of REE is caused by mass transfer and the other is responsible for the addition of REE into the rock from hydrothermal fluid that caused rock alteration.
The works cover the oxidation and crystallization kinetics, gas-liquid mass transfer and evaporation, reactor modeling, database development, novel reactor design, process modeling, simulation, and optimization.
However, the influence of porosity on the membrane absorption process became visible for fast mass transfer system.
Moreover, the mass transfer behavior near the membrane surface on liquid side was studied.
The results show that the influence of membrane porosity on mass transfer relates to flow condition, absorption system and distance between micro-pores, etc.
The hydrodynamic stimulation within it accelerates the metabolism of the osteoblast and mass transfer, which is propitious to cell differentiation and proliferation.