Transcription of Chapter – 4 Convective Mass Transfer
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Chapter – 4 Convective Mass Transfer
1 Chapter 4 Convective Mass Transfer Introduction Convective Mass Transfer coefficient Significant parameters in Convective mass Transfer The application of dimensional analysis to Mass Transfer Transfer into a stream flowing under forced convection Transfer into a phase whose motion is due to natural convection Analogies among mass, heat , and momentum Transfer Reynolds analogy Chilton Colburn analogy Convective mass Transfer correlations For flow around flat plat For flow around single sphere For flow around single cylinder For flow through pipes Mass Transfer between phases Simultaneous heat and mass Transfer Condensation of vapour on cold surface Wet bulb thermometer Introduction Our discussion of mass Transfer in the previous Chapter was limited to molecular diffusion, which is a process resulting from a concentration gradient.
2 In the study of convective heat transfer, the heat flux is connected to heat transfer coefficient as ( ) Q A =q = h t s −t m----- (4.1) The analogous situation in mass transfer is handled by an equation of the form
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