Contents

• Unit 1. Introduction: Objective, scope and outcome of the course.

  
  Unit 2. Introduction: Heat transfer processes, conduction and radiation. Fourier’s
  law of heat conduction, thermal conductivity, thermal conductivity of solids,
  liquids and gases, effect of temperature on thermal conductivity. Newton’s law
  of cooling, definition of overall heat transfer coefficient. General parameters
  influence the value of heat transfer coefficient.

  Conduction: General 3-Dimensoinal conduction equation in Cartesian,
  cylindrical and spherical coordinates; different kinds of boundary conditions;
  nature of differential equations; one dimensional heat conduction with and
  without heat generation; electrical analogy; heat conduction through composite
  walls; critical thickness of insulation
   

  Unit 3. Heat transfer from extended surfaces: Governing differential equation of
  fin, fin efficiency and effectiveness for different boundary conditions. Unsteady
  state heat conduction for slab, cylinder and sphere, Heisler chart.
  Convection: Review of Navier – Stokes and energy equation, hydrodynamic
  and thermal boundary layers; laminar boundary layer equations; forced
  convection appropriate non dimensional members; effect of Prandtl number;
  empirical relations for flow over a flat plate and flow through pipes.

  
  Unit 4. Natural convection: Dimensional analysis, Grashoff number, boundary layers
  in external flows (flow over a flat plate only), boundary layer equations and
  their solutions, heat transfer correlations.
  Heat transfer with change of phase: Nature of vaporization phenomena;
  different regimes of boiling heat transfer; correlations for saturated liquid
  vaporization; condensation on flat plates; correlation of experimental results,
  drop wise condensation.

  
  Unit 5. Heat exchanger: Types of heat exchangers, arithmetic and logarithmic mean
  temperature differences, heat transfer coefficient for parallel, counter and cross
  flow type heat exchanger; effectiveness of heat exchanger, N.T.U. method,
  fouling factor. Constructional and manufacturing aspects of Heat Exchangers.

  
  Unit 6. Thermal Radiation: Plank distribution law, Krichoff’s law; radiation properties,
  diffuse radiations; Lambert’s law. Radiation intensity, heat exchange between
  two black bodies heat exchanger between gray bodies. Shape factor; electrical
  analogy; reradiating surfaces heat transfer in presence of reradiating surfaces