−The information of particle cluster dynamics is necessary for improving the performance of a circulating fluidized bed system. The main objective of this study is to compare the particle cluster diameters and concentrations from computational fluid dynamics simulation results between circulating fluidized bed riser and downer. The calculation methodologies are based on the concept of kinetic t...

High temperature Fischer-Tropsch synthesis process use fixed fluidized bed as a reactor. In order to understand the flow behavior in the fluidized bed better, the research of how the radial velocity affects the entire flow field is necessary. Laser Doppler Velocimetry (LDV) was used to study the radial velocity distribution along the diameter direction of the cross-section of the particle in a ...

Vapor phase syntheses, including parylene chemical vapor deposition (CVD) and initiated CVD, enable the deposition of conformal polymer thin films to benefit a diverse array of applications. This short review for nanotechnologists, including those new to vapor deposition methods, covers the basic theory in designing a conformal polymer film vapor deposition, sample preparation and imaging techn...

Fluidized bed processing is a relatively novel method for coating metal substrates. A detailed study was carried out into surface property and in micro-structure changes induced by fluidized bed processing. In particular, fluidized bed processing of AA 6082 T6 aluminum alloy components using alumina Al2O3 powder was investigated. Firstly, the build up of Al2O3 films was studied and characterize...

s International B, ~. (8), 2160.Kozempel MF, Sullivan IF, Craig JC Jr. , KonstanceRP, (1989) , Expolsion puffing of fruits and vegetables , J . Food Science,~. (3) , 772-773.Krkoskova B, (1977), The influence of freezing rate on the quality of frozen green beans, Prumsyl Potravin, ll,(4), 197-200.Kucharski J, ( 1989), Heat transfer in a spouted bed granulator , Hungarian J ....

can be varied from perfectly isotropic to exactly straight. Also positive or negative tapering is po~s ib le .~ Various ways of fabricating channels in silicon are The basic approach for disyussed. Some new channels are presented: the constructing channels in GPSIC's and the LPCVD covered channels. Also some silicon is almost always attention is paid to the problem of making connections as depi...

This study focuses on the manufacture of carbon nanotubes using the arc discharge method. Several independent variables were changed, such as the current (80 and 100 A), an atmosphere of open air or argon and the catalyst (no catalyst, Fe or a mixture of Fe/Co,Ni). Only one set of parameters yielded MWNTs, involving Fe as the catalyst and an open air atmosphere. I. INTRODUCTION There has been i...