Heat and Mass Transfer

Learning Outcomes

Knowledge and Understanding

Having successfully completed this module, you will be able to demonstrate knowledge and understanding of:

• Describe the mechanisms of heat and mass transfer in the context of chemical engineering applications.
• Assess the heat and mass transfer requirements of industrially relevant problems.

Transferable and Generic Skills

Having successfully completed this module you will be able to:

• Perform calculations for heat and mass transfer and apply thermodynamic analysis to processes with heat, work and/or mass transfer.

Disciplinary Specific Learning Outcomes

Having successfully completed this module you will be able to:

• Analyse complex systems where heat and mass transfer are involved.

Subject Specific Practical Skills

Having successfully completed this module you will be able to:

• Design heat exchanges and equipment for heat and mass transfer.

Conduction: the general differential equation of heat conduction; representations of steady-state and unsteady heat conduction; heat conduction in plane, for composite systems, for extended surfaces, and with internal heat generation; lumped analysis; use of Heisler’s charts.

Convection: free and forced convection; hydrodynamic and thermal boundary layers; over plates and cylinders and internal flow through tubes . Phase change heat transfer and heat exchangers:

Nusselt’s theory of condensation; regimes of pool boiling and flow boiling; correlations in boiling and condensation; heat Exchanger types and analysis using the LMTD and NTU methods.

Radiation: black body and grey body radiation; shape factor; radiation shields; radiation through gases.

Mass transfer: diffusion and Fick’s laws; steady-state molecular diffusion and convective mass transfer;

Raleigh’s method and Buckingham’s π theorem, dimensional analysis, dimensionless numbers pressure drop-flow rate, relationship for flow through pipe, rectangular conduit and circular in laminar flow; turbulent flow and Fanning’s friction factor; compressible flow through nozzles and porous media; apparent viscosity, generalized viscosity coefficient; fundamentals of fluidization, ideal and real fluids, Newton’s law of viscosity, Newtonian & non-Newtonian Fluids.

Practical: laboratory and computer based exercises to illustrate heat and mass transfer.

Teaching will be done with a combination of formal lectures, paper-based problem-solving sessions and laboratory sessions. There will be an emphasis on active learning techniques, including workshops and tutorial sessions that focus on exercises and problems.

Summative

This is how we’ll formally assess what you have learned in this module.