MEC 3105 –
Introduction to Heat Transfer
Credits: 4
Lectures/Tut.: 2
hr/wk
Labs: 3
sessions
Prerequisite:
Leads to:
Objectives
An
introduction to Conduction, Convection and
Radiation. The material covered provides basic knowledge in Heat
Transfer
both to the designer of systems and the Field Engineer.
Syllabus
Conduction: Fourier’s law of
heat conduction, one dimensional steady state conduction through
composite
walls, plain, circular and spherical boundaries, R values, Critical
thickness
of insulation, Thermal contact resistance, extended surfaces (fins),
Lumped
heat capacity system, Conduction with internal heat generation, non
steady
conduction.
Principles
of convection: Laminar boundary layer on
a
flat plate, Energy equation for the Boundary layer, Thermal boundary
layer,
Relation between fluid friction and heat transfer, Turbulent boundary
heat
transfer, Turbulent boundary layer thickness, Heat transfer for laminar
and
turbulent flow in pipes. Free convection for vertical and
horizontal
surfaces. Principles of dynamic similarity and dimensional
analysis.
Radiation: Law of black body
radiation; Kirchoff’s law; Grey body radiation; Radiation between black
and
grey surfaces.
Heat
Exchangers.
Laboratory Work
Laboratory
sessions shall include:
Standard heat
transfer measuring systems in
conduction, convection and radiation.
Applied
researched assignment.
Assessment
Coursework –
10%
Exam – 90%
Reference Textbooks
Holman J.P., Heat
Transfer.
Chapman, Heat
Transfer Journal.
Cornwell, The
Flow of Heat.
Journal: ASME Heat Trans