Solid fuel conversion in a pressurized drop-tube reactor is studied detail using three-dimensional computational fluid dynamics (CFD) model. The main focus on analyzing individual particle trajectories and residence times, as these data are crucial for the precise experimental estimation of heterogeneous reaction kinetics. numerical results were substantiated by radioactive tracer measurements ...

The continuous casting tundish is a very important metallurgical reactor in production. flow characteristics of tundishes are usually evaluated by residence time distribution (RTD) curves. At present, the analysis model RTD curves still has limitations. In this study, we reviewed curve models single and multi-flow tundish. We compared mixing modified combination for same time, multi-strand were...

spatial measurements of conductivity, temperature and depth were used to study salinity variations along the principal channels of the tidal hypersaline creek network in the vicinity of bushehr port, persian gulf during three 25- tidal cycles in both warm and cold months. salinity variations and tidal fluctuations were out of phase throughout the short inverse estuary. the salinity values insid...

in this paper, the present state of knowledge about axial mixing in gasliquid reactors is reviewed. a brief outline of the methods for measuring residence time distribution(rtd)of various phases in a multiphase reactor is presented. this is followed by a short description of differential and stage-wise models for characterizing back mixing from rtd measurments. backmixing characteristics of som...