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Module

CME1023 : Transfer Processes

  • Offered for Year: 2021/22
  • Module Leader(s): Dr Richard Law
  • Lecturer: Dr Maria Vicevic, Dr Shayan Seyedin, Dr Kamelia Boodhoo
  • Owning School: Engineering
  • Teaching Location: Newcastle City Campus
Semesters
Semester 1 Credit Value: 13
Semester 2 Credit Value: 12
ECTS Credits: 13.0

Aims

To provide knowledge of common fluid properties (e.g density, pressure, viscosity and surface tension).
• To provide a fundamental knowledge of the mechanisms of fluid flow and apply this knowledge to solve fluid flow problems commonly encountered in chemical engineering processes.
• To understand and apply the techniques for flow measurement.
• To provide an introduction to mass transfer theory and phase equilibria.
• To introduce the 3 types of heat transfer.
• To enable analysis of conductive systems in various geometries and with multiple layers
• To enable analysis of convective systems, with or without conduction
• To introduce dimensional analysis, and its applications to heat transfer problems
• To introduce and enable analysis of extended surfaces
• To enable the students to design simple heat exchangers
To provide an introduction to mass transfer theory and phase equilibria.

This module teaches the fundamentals of fluid mechanics and, heat and mass transfer processes.

Fluid mechanics is one of the most important processes in Chemical Engineering. This module will equip the students with fundamental knowledge of solving common fluid flow problems in Chemical Engineering. It will begin by describing the properties of fluids such as density, pressure, viscosity, and surface tension and will then discuss various flow regimes and explain how to measure frictional energy and pressure losses in various fluid flow conditions.

This module introduces the 3 basic types of heat transfer: conduction, convection and radiation. By the end of the module the students will be able to understand many everyday examples of heat transfer, as well as being able to solve many steady state heat transfer calculations that Chemical Engineers encounter on plant.

The module will explain the processes of mass transfer and diffusion and apply them to engineering systems of separation and reactions. These principles build on knowledge of fluid behaviour and the analogy between momentum; heat and mass transfer.

Outline Of Syllabus

Fluid mechanics (SS)

What is a fluid, properties of fluids (density, pressure, viscosity, and surface tension), and Newtonian and non-Newtonian fluid properties.

Properties of fluids in motion (flow rates and velocity), flow regimes, Reynolds number, analysis of laminar flow through a pipe or tube, and Poiseuille equation.

Continuity equations (conservation of mass), fluid energy (pressure, kinetic, and potential energies), Mechanical Energy Balance, and Bernoulli’s equation.

Conservation of momentum, friction factor in pipes, pressure drop due to friction, and Moody chart

Minor losses (sudden expansions/contractions, valves, and fittings), loss coefficient, and equivalent length

Non-circular conduits, flow measurement (orifice plates, flow nozzles, Venturi tubes, and Pitot tubes)


Heat Transfer (RL)

Introduction to heat transfer: the 3 modes of heat transfer. Why the study of heat transfer is important for chemical engineers

Conduction: Fourier’s Equation. Conduction through different 1-D geometries. Composite systems. Thermal resistances.

Convection: Newton’s Law of Cooling. Combined convection and conduction. The overall heat transfer coefficient. The Reynolds Analogy. Dimensional analysis. Convection correlations.

Heat Exchanger Design: The Overall Heat Transfer Coefficient. The Log Mean Temperature Difference. Sizing of simple heat exchangers.

Extended surfaces.



Mass transfer (MV)

Diffusion and diffusion coefficients

Ficks 1st law and equimolar counter diffusion. Diffusion through a stationary phase and Stefan’s Law. Two film theory

Individual and overall mass transfer coefficients. Application of mass transfer coefficients

Teaching Methods

Teaching Activities
Category Activity Number Length Student Hours Comment
Scheduled Learning And Teaching ActivitiesLecture113:0013:005 hours on Fluids, 5 hours on Heat Transfer, 3 hours on Mass Transfer. In Person.
Structured Guided LearningLecture materials421:0042:00Lecture notes and videos available on Canvas to supplement PiP activities. 17hr Fluids, 17hr Heat Tr
Guided Independent StudyAssessment preparation and completion122:0022:00Completion of assignment
Guided Independent StudyAssessment preparation and completion44:0016:00Lab Report writing.
Guided Independent StudyAssessment preparation and completion128:0028:00Exam Revision
Guided Independent StudyAssessment preparation and completion13:003:00Written Examination.
Scheduled Learning And Teaching ActivitiesPractical43:0012:00Laboratory practicals. In Person
Scheduled Learning And Teaching ActivitiesSmall group teaching201:0020:00Tutorials. 8 hours Fluids, 8 hours Heat Transfer, 4 hours Mass Transfer. In Person
Guided Independent StudyIndependent study194:0094:00Review lecture material, prepare for tutorial classes.
Total250:00
Teaching Rationale And Relationship

Lectures and guided independent study convey the basic concepts of fluid dynamics and, heat and mass transfer, and demonstrating their application in chemical engineering contextt whilst tutorial classes support the lecture material is through extended examples. The key concepts are presented in person, to allow discussion with students and in-person questioning. All tutorial classes are also held in-person, to ensure students receive the help they need to successfully attempt the extended example problems. Practical sessions allow theoretical principles developed in lectures to be applied in hands-on experiments to more effectively aid understanding and assimilation of material.

The following plan B is presented in case of Covid-19 disruption:
•       In person lectures will switch to non-synchronous guided learning activities (Canvas notes and videos)
•       In person tutorials will switch to synchronous, online, tutorial sessions (via Zoom)
•       In person laboratories will switch to non-synchronous, guided learning activities (“virtual” laboratories delivered via Canvas)

Assessment Methods

The format of resits will be determined by the Board of Examiners

Exams
Description Length Semester When Set Percentage Comment
Written Examination1802A603 hour Closed book exam on Fluid Dynamics, Heat Transfer and Mass Transfer. In exam hall.
Other Assessment
Description Semester When Set Percentage Comment
Report2M20Transfer Processes assignment
Practical/lab report1M5Laboratory reports in semester 1 and 2
Practical/lab report1M5Laboratory reports in semester 1 and 2
Practical/lab report1M5Laboratory reports in semester 1 and 2
Practical/lab report1M5Laboratory reports in semester 1 and 2
Assessment Rationale And Relationship

The exam at the end of semester 2 is an appropriate way to assess mathematical and analytical skills applied in combination with assessment of the fundamental knowledge of fluid mechanics, heat transfer and mass transfer.

The assignment allows more realistic open ended, engineering problems to be investigated and solved.

The lab reports allow critical analysis of real data from experiments and allow development of technical report writing skills and graphical analysis.

In the event of Covid disruption the following plan B is provided:

•       The in-person exam is replaced with a 24 hour “take home” open book paper
•       The laboratory reports will remain, and will be completed based on “virtual laboratory” exercises.

Reading Lists

Timetable