Dr. Ahmed's Teaching
List of courses taught
- Process Equipment Design (Unit Operations)
-
Process Dynamics and Control
- Process Simulation
- Safety and Risk Engineering
- Advanced Reliabilty Modeling
Process Equipment Design (Unit Operations)
Process equipment design introduces the principles of unit operations, grouped into four sections: fluid mechanics, heat transfer, mass transfer and equilibrium stages, and operations involving particulate solids. Design and operation fundamentals of unit operations equipment: size reduction, filtration, evaporation, drying, crystallization, and humidification.
Course handouts and links to recorded leactures are listed below:
Please find the course outline here.
Course contents (mindmap)
Lectures: Course administaration (13:45)
Introduction to the course (9:00)
Topic 1: Properties of solid particles
1.1 Particle size and shape: Handout Presentation
Lectures: Size and shape of solid particles (16:36)
The concept and definition of sphericity (6:26)
Sphericity of cubic particles (5:23)
Sphericity of cylindrical particles (4:43)
Surface area of bulk particles (8:02)
Mean diameter of bulk particles (18:40)
1.2 Size measurement: Handout Presentation
Lectures: Techniques for particle size measurement (4:10)
Screen analysis (sieving) (13:36)
1.3 Size reduction equipment: Handout Presentation
Lectures: Introduction to size reduction (4:59)
Mechanisms for size reduction (5:54)
Equipment for size reduction (7:26)
Ball mill: structure and operating principles (6:57)
Rittinger's law, Kick's law, Bond's law and Work Index (17:18)
Topic 2: Filtration: Handout Presentation
Lectures: Filtrations basics, plate and frame filter press, rotary vacuum filter (21:00)
Constant pressure filtration - Mathematical formulation (23:02)
Topic 3: Fluidization: Handout Presentation
Lectures: Fluidization - Basic concepts (22:36)
Forces on a particle in fluid and terminal settling velocity (14:03)
Hydraulic radius and its expression for a fluidized bed (5:36)
Governing equations for fluidization (22:13)
Minimum fluidization velocity and range of operation of a fluidized bed (9:41)
Topic 4: Heat Exchangers: Handout Presentation LMTD Shell & Tube HX Design Workbook
Lectures: Heat exchangers: Basic concepts and types (15:43)
Shell and tube heat exchanger: Structural details (15:12)
Shell and tube heat exchanger: Design procedure (13:09)
Estimation of tube and shell side heat transfer coefficients (6:53)
Overall heat ransfer coefficients (11:30)
Log mean temperature difference (LMTD) (33:46)
Allocation of fluids for a shell and tube heat exchanger (4:28)
Topic 5: Mixing and agitation: Handout Presentation
Lectures: Basic concepts on mixing and agitation (12:29)
Flow number and power number (12:35)
Power consumption in mixing and agitation (9:07)
Example problem on power consumption (4:20)
Mixing time (1:56)
Example problem on mixing time (4:22)
Scale-up procedure for mixing equipment (7:53)
Example problem: Scale-up of mising equipment (5:46)
Topic 6: Drying: Handout Presentation
Lectures: Fundamentals of dring (29:02)
Drying curve (5:32)
Drying time (6:20)
Drying problems (13:41)
Topic 7: Evaporaors: Handout Presentation
Lectures: Evaporator basics and design factors (9:42)
Types of evaporators (5:59)
Single and multiple effect evaporators (8:12)
Design calculations for evaporators
Workbooks
Single Effect Evaporator - Introduction (1:44)
Multiple Effect Evaporators - Introduction (3:18)
Falling film evaporator - working principle (2:06)
Forced Circulation Evaporator Working Principle (1:06)