Numerical simulation of the gas-solid flow in a fluidized bed by combining discrete particle method with computational fluid dynamics

Electrohydrodynamic spraying functioning modes - a critical-review

GENERAL DISCUSSION: CONVENTIONAL AND NOVEL DRYING CONCEPTS Need for Advanced Drying Technologies Classification and Selection Criteria: Conventional versus Novel Technologies Innovation and Trends in Drying Technologies SELECTED ADVANCED DRYING TECHNOLOGIES Drying on Inert Particles Impinging Stream Drying Drying in Pulsed Fluid Beds Superheated Steam Drying Airless Drying Drying in Mobilized Beds Drying with Shock Waves Vacu Jet Drying System Contact-Sorption Drying Sonic Drying Pulse Combustion Drying Heat Pump Drying Fry-Drying SELECTED TECHNIQUES FOR DRYING AND DEWATERING Mechanical Thermal Expression Displacement Drying Vapor Drying Slush Drying Atmospheric Freeze-Drying Spray-Freeze-Drying Refractance Window Carver-Greenfield Process HYBRID DRYING TECHNOLOGIES Microwave-Convective Drying with Cogeneration Microwave-Vacuum Drying Filtermat Drying Spray-Fluid Bed-Vibrated Fluid Bed Dryer Combined Filtration and Drying Radio-Frequency Drying with 50 O Technology Radio Frequency-Assisted Heat Pump Drying Radio Frequency-Vacuum Drying Miscellaneous Hybrid Technologies OTHER TECHNIQUES Special Drying Technologies Index

Advanced drying technologies

Using carrot cubes as a model heat-sensitive material, experimental investigations were conducted to examine the drying kinetics and various quality parameters of the dried product undergoing both ...

A Comparative Study of Low-Pressure Superheated Steam and Vacuum Drying of a Heat-Sensitive Material

The efficiency of separation processes can usually be assured either by an energy input or by external forces. The majority of conventional sep- arations applies mechanical or thermal energy in combination with pressure or gravity forces. The ability of superimposed electric fields to improve separation processes has been well known for many years. The familiar industrial applications range from solid-solid separation in the beneficiation of ores in the mining industry, coalescence of “water-in-oil” emulsion in the petroleum industry, to cleaning of exhaust gases from solid particles in various technologies.

/pdf/electric-field-driven-separations-phenomena-and-applications-1vsynqz01a.pdf

Electric Field Driven Separations: Phenomena and Applications

Transport Disengaging Height (T. D. H.) was studied theoretically and experimentally for both continuous and batch fluidized beds. The theoretical elutriation rate of fines above the T. D. H., Vt, was calculated by use of the Maxwell-Bolzmann energy distribution, and it showed good agreement with the experimental value for the continuous fluidized bed. The theoretical values of the T. D. H., which were defined as Z at V=1.01Vt, coincided fairly well with the present and reported experimental results. The elutriation height coefficients a were found empirically to increase with increase in particle diameter and with decrease in superficial velocity.

/pdf/elutriation-of-fines-from-fluidized-bed-1vfpf9p4fb.pdf

Elutriation of fines from fluidized bed

Etude experimentale du mecanisme conduisant a la teneur critique en humidite. On propose un modele simple du sechage en vapeur surchauffee

Drying mechanism of sintered spheres of glass beads in superheated steam

ELUTRIATION OF FINES FROM FLUIDIZED BED:Study of Transport Disengaging Height

The behavior of the charged drop issuing from metal capillaries was investigated. The dripping frequency of conductive liquids increased with increasing applied D.C. volatge, while the diameter of the dripping drop gradually decreased up to from 1.5 to 2.0 times the outside diameter of the capillary and eventually burst. It was found that there is a critical drop diameter correlating with the minimum spraying voltage. Theoretical approximate consideration of the critical drop diameter was further examined. The experimental data were rearranged by the modified Bond number derived theoretically and showing slight dependence on it. The charge-to-mass ratio of the dripping drop was measured for various voltage levels, so that the specific charge of the critical drop was found to be about one-half a fully charged drop, known as the Rayleigh''s limit.

Hisashi Shinohara

Papers

Elutriation of fines from fluidized bed

Drying mechanism of sintered spheres of glass beads in superheated steam

ELUTRIATION OF FINES FROM FLUIDIZED BED:Study of Transport Disengaging Height

Stability of charged drop issuing from a fine capillary

Small Air Bubble Formation in Insulating Liquids under Strong Nonuniform Electric Field