# Heat and Mass Transfer

Indian Institute of Technology Bombay

Course contents:

• INTRODUCTION – Typical heat transfer situations.
• Modes of heat transfer.
• Introduction to laws, some heat transfer parameters.
• CONDUCTION – Fourier’s law and thermal conductivity.
• Differential equation of heat conduction, boundary conditions and initial conditions.
• Simple one dimensional steady state situations – plane wall, cylinder, sphere (simple and compex situations), concept of thermal resistance, concept of U, critical radius. Variable thermal conductivity (exercise).
• Special one dimensional steady state situations – heat generation, pin fins. Other fin configurations (exercise).
• Two dimensional steady state situations.
• Transient conduction. Lumped capacitance model. One dimensional transient problems – analytical solutions. One dimensional Heisler charts. Product solutions.
• Numerical methods in conduction. Steady state one dimensional and two dimensional problems. One dimensional transient problems – Explicit and implicit.
• RADIATION. Basic ideas, spectrum, basic definitions.
• Laws of radiation, black body radiation, Planck’s law, Stefan Boltzman law, Wien’s Displacement law, Lambert cosine law.
• Radiation exchange between black surfaces, shape factor.
• FORCED CONVECTION. Concepts of fluid mechanics.
• Differential equation of heat convection.
• Laminar flow heat transfer in circular pipe – constant heat flux and constant wall temperature, thermal entrance region, Turbulent flow heat transfer in circular pipe, pipes of other cross sections.
• Heat transfer in laminar flow and turbulent flow over a flat plate, Reynolds analogy.
• Flow across a cylinder and sphere, flow across banks of tubes, impinging jets.
• NATURAL CONVECTION. Introduction, governing equations,Vertical plate – Pohlhausen solution, horizontal cylinder, horizontal plate, enclosed spaces.
• HEAT EXCHANGERS. Types of heat exchangers, LMTD approach – parallel, counter-flow, multi-pass and cross flow heat exchanger, NTU approach – parallel, counterflow, shell and tube, cross flow heat exchanger.
• Condensation and Boiling. Dimensionless parameters, boiling modes, correlations, Forced convection boiling, laminar film condensation on a vertical plate, turbulent film condensation.
• Mass Transfer. Analogy between heat and mass transfer, mass diffusion, Fick’s law of diffusion, boundary conditions, steady mass diffusion through a wall, transient mass diffusion, mass convection, limitations of heat and mass transfer analogy.
• ##### Lecture - 1 Introduction on Heat and Mass Transfer
Prof. S.P. Sukhatme, Prof. U.N. Gaitonde
• ##### Lecture - 2 Introduction - 2
Prof. S.P. Sukhatme, Prof. U.N. Gaitonde
• ##### Lecture - 3 Introduction - 3
Prof. S.P. Sukhatme, Prof. U.N. Gaitonde
• ##### Lecture - 4 Heat Conduction - 1
Prof. S.P. Sukhatme, Prof. U.N. Gaitonde
• ##### Lecture - 5 Heat Conduction - 2
Prof. S.P. Sukhatme, Prof. U.N. Gaitonde
• ##### Lecture - 6 Heat Conduction - 3
Prof. S.P. Sukhatme, Prof. U.N. Gaitonde
• ##### Lecture - 7 Heat Conduction - 4
Prof. S.P. Sukhatme, Prof. U.N. Gaitonde
• ##### Lecture - 8 Heat Conduction - 5
Prof. S.P. Sukhatme, Prof. U.N. Gaitonde
• ##### Lecture - 9 Heat Conduction - 6
Prof. S.P. Sukhatme, Prof. U.N. Gaitonde
• ##### Lecture - 10 Thermal Radiation - 1
Prof. S.P. Sukhatme, Prof. U.N. Gaitonde
• ##### Lecture - 11 Thermal Radiation - 2
Prof. S.P. Sukhatme, Prof. U.N. Gaitonde
• ##### Lecture - 12 Thermal Radiation - 3
Prof. S.P. Sukhatme, Prof. U.N. Gaitonde
• ##### Lecture - 13 Thermal Radiation - 4
Prof. S.P. Sukhatme, Prof. U.N. Gaitonde
• ##### Lecture - 14 Thermal Radiation - 5
Prof. S.P. Sukhatme, Prof. U.N. Gaitonde
• ##### Lecture - 15 Thermal Radiation - 6
Prof. S.P. Sukhatme, Prof. U.N. Gaitonde
• ##### Lecture - 16 Review Of Fluid Mechanics - 1
Prof. S.P. Sukhatme, Prof. U.N. Gaitonde
• ##### Lecture - 17 Review Of Fluid Mechanics - 2
Prof. S.P. Sukhatme, Prof. U.N. Gaitonde
• ##### Lecture - 18 Forced Convection - 1
Prof. S.P. Sukhatme, Prof. U.N. Gaitonde
• ##### Lecture - 19 Forced Convection - 2
Prof. S.P. Sukhatme, Prof. U.N. Gaitonde
• ##### Lecture - 20 Forced Convection - 3
Prof. S.P. Sukhatme, Prof. U.N. Gaitonde
• ##### Lecture - 21 Forced Convection - 4
Prof. S.P. Sukhatme, Prof. U.N. Gaitonde
• ##### Lecture - 22 Natural Convection - 1
Prof. S.P. Sukhatme, Prof. U.N. Gaitonde
• ##### Lecture - 23 Natural Convection - 2
Prof. S.P. Sukhatme, Prof. U.N. Gaitonde
• ##### Lecture - 24 Natural Convection - 3
Prof. S.P. Sukhatme, Prof. U.N. Gaitonde
• ##### Lecture - 25 Heat Exchangers - 1
Prof. S.P. Sukhatme, Prof. U.N. Gaitonde
• ##### Lecture - 26 Heat Exchangers - 2
Prof. S.P. Sukhatme, Prof. U.N. Gaitonde
• ##### Lecture - 27 Heat Exchangers - 3
Prof. S.P. Sukhatme, Prof. U.N. Gaitonde
• ##### Lecture - 28 Heat Exchangers - 4
Prof. S.P. Sukhatme, Prof. U.N. Gaitonde
• ##### Lecture - 29 Boiling and Condensation - 1
Prof. S.P. Sukhatme, Prof. U.N. Gaitonde
• ##### Lecture - 30 Boiling and Condensation - 2
Prof. S.P. Sukhatme, Prof. U.N. Gaitonde
• ##### Lecture - 31 Boiling and Condensation - 3
Prof. S.P. Sukhatme, Prof. U.N. Gaitonde
• ##### Lecture - 32 Boiling and Condensation - 4
Prof. S.P. Sukhatme, Prof. U.N. Gaitonde
• ##### Lecture - 33 Introduction to Mass Transfer - 1
Prof. S.P. Sukhatme, Prof. U.N. Gaitonde
• ##### Lecture - 34 Introduction to Mass Transfer - 2
Prof. S.P. Sukhatme, Prof. U.N. Gaitonde
• ##### Lecture - 35 Introduction to Mass Transfer - 3
Prof. S.P. Sukhatme, Prof. U.N. Gaitonde