Introduction: modes of heat transfer.
Conduction: Fourier law of heat conduction for isotropic material.Thermal conductivity. Derivation of the energy equation in three
dimensions including transient effect. Nondimensional - thermal diffusivity and Fourier number. Types of boundary conditions
(Dirchlet, Neumann, mixed type). One dimensional solution with and without heat generation. Analogy with electrical circuits.
Fins, rectangular and pin fins. Fin effectiveness and efficiency.
Critical thickness of insulation.
Lumped parameter approach and physical significance of time constant, Biot number, Validity of lumped parameter approach.
Introduction to Heissler Chart.
Numerical methods for heat conduction.
Radiation : Physical mechanism of thermal radiation, laws of radiation, definition of black body, emissive power, intensity of radiation,
emissivity, reflectivity, transmittivity, irradiation, radiosity.
Radiation exchange between black bodies, concept of Gray-Diffuse Isotropic (GDI) surface. Radiation exchange between GDI surfaces
by radiation network and radiosity matrix method. Radiation shielding.
Convection: Introduction, Newton's law of cooling and significance of the heat transfer coefficient.
Momentum and energy equations in two dimensions, nondimensionalisation, importance of nondimensional quantities and their
physical significance. Order of magnitude analysis for flow over a flat plate. Velocity and thermal boundary layer thickness by integral
method. Analogies between momentum, heat and mass transfer. Natural convection, effect of coupling on the conservation equations,
vertical flat plate (concept and correlations)
One dimensional solution for Couette flow and Poisullie flow.
Concept of developing and developed flow.
Introduction to the concept of similarity.
Heat exchangers: Types of heat exchangers, parallel and counterflow types, Introduction to LMTD. Correction factors, fouling factor.
E-NTU method for heat exchangers.