Fundamentals of Particle and Fluid Solid Processing

By Dr. Arnab Atta   |   IIT Kharagpur
The objective of this course is to familiarize students with various industrial operations involving particulate solids and its handling in various unit operations, where fluid-particle interactions are of paramount importance.This course will describe and explain the fundamentals of fluid-particle mechanics, which are essential for the understandings of numerous industrial fluid-solid processes like packed bed operation, fluidization, sedimentation, filtration, separation of solids from fluids,etc.Along with the fundamentals, industrial applications will also be discussed. Even though this course is primarily intended for the UG students of chemical engineering, the course content can certainly form the foundation of courses related to particle technology for UG students of other disciplines including mechanical, civil, pharmaceutical, metallurgy and minerals engineering.

INTENDED AUDIENCE : Engineering Students/Faculty
PREREQUISITES :          Fluid Mechanics
INDUSTRY SUPPORT :   Process industries, e.g., IOCL, HPCL, BPCL, GAIL, ONGC, etc

Learners enrolled: 269


Course Status : Completed
Course Type : Core
Duration : 12 weeks
Start Date : 29 Jul 2019
End Date : 18 Oct 2019
Exam Date : 16 Nov 2019
Category :
  • Chemical Engineering
  • Level : Undergraduate

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    Week 1: Introduction to relevance of fluid-particle mechanics and processing operations in chemical engineering. Solid particle characterization - Size
                    distribution, determinations of mean particle size, methods of particle size measurement
    Week 2: Fluid-particle mechanics: Flow around immersed bodies, concept of drag, boundary layer separation
    Week 3: Fluid-particle mechanics: Motion of particles in a fluid, effect of particle shape, influence of boundaries on terminal velocity
    Week 4: Fluid flow through granular and packed beds of particles: Ergun equation, Kozeny-Carman equation, Darcy’s law, permeability
    Week 5: Fluidization: Minimum fluidization velocity, relevant particle properties, types of fluidization, liquid-solid and gas-solid systems
    Week 6: Introduction to separation of solids from fluids. Sedimentation - Free and hindered settling, fine and coarse particles, Richardson-Zaki equation
    Week 7: Filtration: Principles of flow through filter cakes and medium, filtration practice, selection of filtration equipment
    Week 8: Centrifugal separations: Gas cyclone and hydrocyclone, efficiency of separation, sedimentation in a centrifugal field
    Week 9: Particle size reduction: Particle fracture mechanisms, energy requirement for size reduction, types and characteristics of comminution equipment,
                    selection of appropriate machine
    Week 10: Particle size enlargement: Interparticle forces, comparison and interaction between forces, nucleation and growth of particles, granulation
    Week 11: Transport of fluid-solid systems: Hydraulic and pneumatic transport, flow regimes, rheological models, dilute and dense phase
    Week 12: Colloids and nanoparticles: Introduction, surface forces, suspension rheology, and application.


    1. Martin Rhodes; Introduction to Particle Technology, 2nd Edition; John Wiley & Sons Ltd. 
    2. Coulson, J. M. and Richardson, J. F.; Chemical Engineering, Volume 2: Particle Technology and Separation Processes, 5th Edition, Butterworth-Heinemann.


    Dr. Arnab Atta
    is presently an Associate Professor of Chemical Engineering at IIT Kharagpur. Awarded with a DAAD fellowship, he spent two months at TU-Dresden, Germany as a visiting faculty for 2 months in 2015. Prior to joining IIT Kharagpur, he was a postdoctoral fellow in the Department of Mechanical Engineering at University of Alberta, Canada. After receiving his bachelor and master of Chemical Engineering degrees from the Department of Chemical Engineering at Jadavpur University, Kolkata, he accomplished his Ph.D. in Chemical Engineering from IIT Delhi, New Delhi as a National Doctoral Fellow. During his Ph.D., he was granted with Canadian Commonwealth Fellowship to visit and pursue a collaborative research in the Department of Chemical Engineering, Université Laval, Québec, Canada. His research interests are inclined toward developing CFD models for a range of applications in multiphase flow and systems at different length scales. He also actively works on droplet based microfluidic flows.


    • The course is free to enroll and learn from. But if you want a certificate, you have to register and write the proctored exam conducted by us in person at any of the designated exam centres.
    • The exam is optional for a fee of Rs 1000/- (Rupees one thousand only).
    • Date and Time of Exams: 16th November 2019 Morning session 9am to 12 noon; Afternoon Session 2pm to 5pm.
    • Registration url: Announcements will be made when the registration form is open for registrations.
    • The online registration form has to be filled and the certification exam fee needs to be paid. More details will be made available when the exam registration form is published. If there are any changes, it will be mentioned then.
    • Please check the form for more details on the cities where the exams will be held, the conditions you agree to when you fill the form etc.

    • Average assignment score = 25% of average of best 8 assignments out of the total 12 assignments given in the course. 
    • Exam score = 75% of the proctored certification exam score out of 100
    • Final score = Average assignment score + Exam score

    • If one of the 2 criteria is not met, you will not get the certificate even if the Final score >= 40/100.
    • Certificate will have your name, photograph and the score in the final exam with the breakup.It will have the logos of NPTEL and IIT Kharagpur. It will be e-verifiable at nptel.ac.in/noc.
    • Only the e-certificate will be made available. Hard copies are being discontinued from July 2019 semester and will not be dispatched