Course description:

The core subject CML 221 Mass Transfer-I covers the fundamentals and basic concepts of separation and purification of mass through its transfer from one phase to the other. Further, it gives learning and understanding skills towards the problems related to separation & purification and in turn the approach to solve it by applying the concepts/principles learned in the curriculum.

Pre-requisites: CML201-Chemical Process Calculations

Objectives:

The objective of this course is to introduce the basic principles of mass transfer and how to quantify, formulate, and solve engineering problems involving different mass transfer operations like diffusion, humidification & dehumidification, drying, crystallization, and adsorption. To demonstrate that how to apply mass balances and its transfer and analyze systems.

Outcomes:

Students will comprehend to Fick’s law of diffusion, the principles of diffusion, driving force, different theories of Mass Transfer and the analogies. They will understand the through details including problem-solving approach and the applications of theory learned in industrial practices regarding the mass transfer operations like diffusion, humidification & dehumidification, drying, crystallization, and adsorption.

Expanded Course description:

Introduction to mass transfer operations, Diffusion in gases and liquids, steady state and unsteady state operations, diffusion mass transfer, individual and overall mass transfer coefficients concept.

Theories of mass transfer, analogies and Interphase mass transfer process; simultaneous heat and mass transfer processes. 

Drying: Constant rate and falling rate periods, equilibrium moisture contents, drying equipment, rotary dryers, drum dryers, vacuum dryers, Spray dryer, fluidized bed dryers, dryer calculations, and dryer selection criteria.

Crystallization: Theory of Crystallization, saturation, supersaturation, nucleation and crystal growth, various types of equipment for crystallization, their operational and design characteristics.

Adsorption: Adsorption isotherms, adsorption agents, types of equipment for adsorption, pressure swing adsorption technology, adsorption phenomena.
Humidification and dehumidification, equipment’s operational characteristics, design procedures, and selection criteria along with mass transfer calculations, Types of cooling towers, cooling tower operational characteristics.