Main Workshop

Heat Transfer

Speaker : Prof. S. V. Prabhu, Prof. Arunkumar Sridharan

Course Objective

The Workshop includes sessions on :

**Introduction to Heat Transfer**
Introduction, Introduction to one Dimensional Conduction, Conduction rate equation, thermal Conductivity, thermal Diffusivity, Heat Diffusion Equation, Initial and Boundary Conditions.
**Conduction**
One dimensional steady state conduction, Plane wall, composite wall, cylinder, sphere, Critical radius of insulation, summary of all cases, One dimensional steady state conduction in plane wall and radial systems with thermal energy generation, Fins - Fin efficiency, effectiveness, length of the fin, Transient conduction- Lumped capacitance, Heisler charts, semi-infinite medium.
**Convection**
Physical Mechanism of Convection, Basics of fluid mechanics, Differential Convection Equations - Navier stokes equation, Energy equation, boundary layer equations for both momentum and heat transfer, Solutions of convection equations for a flat plate, Normalised dimensionless equations and similarity, analogies of heat transfer, Convective heat transfer in external flows for general configurations, Internal forced convection - average velocity and bulk mean temperature, laminar and turbulent flow in tubes and Natural convection .
**Heat Exchangers**
Types, overall heat transfer coefficient, fouling factor, Analysis of heat exchangers, Log mean temperature difference for parallel and counterflow heat exchangers, multipass and cross flow heat exchangers, use of correction factor, E-NTU method - Effectiveness relations for all heat exchangers along with the charts, selection of heat exchangers.
**Thermal Radiation**
Introduction, thermal radiation, black body radiation - Stefan Boltzman law,Plancks law, Wiens displacement law, Radiation intensity, solid angle, intensity of emitted radiation, incident radiation, radiosity, spectral quantities, Radiative properties, Kirchoffs law, Greenhouse effect, Radiation heat transfer - view factor, view factor relations, Black surfaces , diffuse and gray surfaces, Net radiation heat transfer between any two surfaces, methods of solving radiation problems, radiation heat transfer in two and three surface enclosure, radiation shields and radiation effects.
**Boiling and Condensation**
Introduction to Two-Phase Flow, Nusselts theory of condensation, Pool boiling curve, Thermodynamic aspects of boiling and evaporation, Rosehnows pool boiling correlation.

Note on open source release of contents

Please note that this workshop is conducted under the eOutreach project of IIT Bombay. Live recording of the workshop and other created contents would be released under Open Source through a portal. The recorded CD/DVD of the workshop lectures would be available for distribution at cost, to any individual/ institution. All participants are required to sign a certificate for such release of contents contributed by them during and after the workshop. The recognition and citation will naturally be made for all contributors.

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