This note covers the
following topics: Diffusion , flick's law, modes of diffusion, Multi-components
mixture, correction of diffusivity, Diffusion in varying cross section area,
Diffusivity coefficient in liquid and gas, Mass transfer theory, Mass transfer
coefficient, wetted wall column, Absorption, equilibrium of gas and liquid,
Packed tower, Tray tower, stripping Extraction , Leaching, batch leaching,
Continuous leaching, constant under flow, Continuous leaching, Distillation ,
vapor-liquid equilibrium, Differential type, flash distillation, Continuous
distillation, Multi-feeds and side stream , lewis sorial method, Ponchon-savarit
method, Batch distillation with constant reflux ratio and with constant product
composition, Multi-component distillation, Humidification , humidity, Cooling
tower calculation, Height of cooling tower, carey method, Drying process,
Evaporation.
When a
system contains two or more components whose concentrations vary from point to
point, there is a natural tendency for mass to be transferred, minimizing the
concentration differences within a system. The transport of one constituent from
a region of higher concentration to that of a lower concentration is called mass
transfer. The topic in these notes are as follows : Introduction to Mass
Transfer, Humidification, Drying, Crystallization, Membrane Seperation.
Author(s): School of Bio and Chemical Engineering, Department of
Chemical Engineering, Sathyabama Institute of Science and Technology
This note covers the following topics: Molecular
mass transport, Properties of Mixtures, Diffusion flux, Fick’s law, Relation
among molar fluxes, Diffusivity, Diffusivity in liquids, Steady State Diffusion,
steady state diffusion through a stagnant film, Diffusion in solids, Convective
Mass Transfer, Convective Mass Transfer Coefficient, Application of
Dimensionless Analysis to Mass Transfer, Convective Mass Transfer Correlations,
Single Sphere, Single Cylinder, Flow Through Pipes, Mass transfer between
phases, Simultaneous Heat and Mass Transfer, The Wet – bulb Thermometer.