ME 301: Heat Transfer

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Course information

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Course calendar

Course contents

Unit Contents Lecture video filename Remarks, if any
Conduction 1

Introduction to Heat Transfer

description of modes of heat transfer; Fourier's law of conduction; Newton's law of cooling; Stefan-Boltzmann law; relationship with thermodynamics

lec_01
Conduction 1

Introduction to conduction

steady-state conduction; thermal properties of matter: conductivity and diffusivity; heat diffusion equation

lec_02
Conduction 1

Governing equation for conduction

boundary and initial conditions for the heat equation

lec_03
Conduction 2

1D conduction

one-dimensional steady-state conduction: conduction in plane wall; thermal resistance; contact thermal resistance; conduction in cylinder and sphere

lec_04
Conduction 2

1D conduction - radial systems

critical radius of insulation

lec_05
Conduction 2

Internal heat generation

heat conduction with volumetric heat generation

lec_06
Conduction 3

Fins - 1

heat transfer from extended surfaces; heat transfer from fins of constant-cross section

lec_07
Conduction 3

Fins - 2

different boundary conditions for fins

lec_08
Conduction 3

Fins - 3

fin efficiency; fin effectiveness

lec_09
Conduction 4

Transient conduction - 0D

lumped system analysis; Biot number

lec_10
Conduction 4

Transient conduction - 1D

spatial effects of transient conduction; transient conduction in large plane walls, long cylinders, and spheres; Fourier number

lec_11
Conduction 4

Transient conduction - 1D

transient heat conduction in semi-infinite solids; transient heat conduction in multi-dimensional systems

lec_12
Convection 1

Introduction to convection

Newton's law of cooling; local and average heat transfer coefficients; no-temperature jump condition

lec_13
Convection 1

Convection terminology

Nusselt number; external vs. internal flows; laminar vs. turbulent flows; thermal boundary layer; Prandtl number

lec_14
Convection 2

Fluid dynamics - 1

differential analysis of fluid flow; conservation of mass

lec_15
Convection 2

Fluid dynamics - 2

review of continuity equation; conservation of momentum equations

lec_16
Convection 2

Fluid dynamics - 3

conservation of momentum equations (contd.); relation between stress and rate of strain

lec_17
Convection 2

Fluid dynamics - 4

basics of turbulence

lec_18
Convection 2

Fluid dynamics - 5

Reynolds stresses and equation, universal velocity profile in a turbulent boundary layer

lec_19
Convection 3

Energy equation

conservation of energy equation; principle of similarity

lec_20
Convection 3

Energy equation solutions

non-dimensional form of equations; Reynolds analogy; Chilton-Colburn analogy

lec_21
Convection 4

External forced convection - 1

convection in external flows, solution of flow over flat plate using similarity variables

lec_22
Convection 4

External forced convection - 2

average heat transfer coefficient; correlations for flow over bluff bodies; Churchill and Bernstein correlation

lec_23
Convection 5

Internal forced convection - 1

convection in internal flows; flow within a circular pipe; bulk mean temperature

lec_24
Convection 5

Internal forced convection - 2

constant surface temperature and surface heat flux conditions; NTU and LMTD; friction factor and Nusselt number for aforementioned case; correlations for non-circular pipes

lec_25
Convection 5

Internal forced convection - 3

velocity profile and temperature profile for flow through circular pipe; Turbulent flow in tubes; Dittus-Boelter correlation

lec_26
Convection 6

Natural convection

Boussinesq approximation; governing equation for natural convection and its solution using similarity variables; Grashoff number

lec_27
Radiation 1

Introduction to radiation

electromagnetic spectrum; radiation emission; spectral and total; directional and diffuse; definition of solid angle

lec_28
Radiation 1

Radiation from a surface - 1

review of solid angle; radiation intensity; irradiation; radiosity

lec_29
Radiation 1

Radiation from a surface - 2

review of total and spectral quantities

lec_30
Radiation 2

Blackbody - 1

blackbody properties; Stefan-Boltzmann law; Planck distribution

lec_31
Radiation 2

Blackbody - 2

Wien's displacement law; band emission

lec_32
Radiation 2

Real surfaces - 1

real surfaces; emissivities of real surfaces; absorptivity, reflectivity and transmissivity

lec_33
Radiation 3

Real surfaces - 2

Kirchoff's law; gray surface

lec_34
Radiation 3

Radiation between bodies - 1

radiation exchange between surfaces; view factor; more on view factor

lec_35
Radiation 4

Radiation between bodies - 2

net radiation to or from surfaces; re-radiating surfaces; net radiation between surfaces; methods of solving radiation problems

lec_36
Radiation 5

Radiation between bodies - 3

radiation in three-surface enclosures; radiation shields; radiation effects

lec_37
Heat exchangers

Heat exchangers: LMTD method

types of heat exchanger; overall heat transfer coefficient; fouling; energy balance in parallel and counter-flow heat exchangers; LMTD method

lec_38
Heat exchangers

Heat exchangers: ε-NTU method

ε-NTU method

lec_39
Boiling

Boiling - 1

boiling phenomena; pool and flow boiling

lec_40
Boiling

Boiling - 2

boiling regimes; boiling curve

lec_41
Condensation

Condensation

condensers in engineering use; film condensation; drop condensation; condensation on a vertical wall with laminar flow, wavy laminar flow, and turbulent flow

lec_42

Tutorial videos

  1. Tutorial 1 (tut_01.mp4)
  2. Tutorial 2 (tut_02.mp4)
  3. Tutorial 3 (tut_03.mp4)
  4. Tutorial 4 (tut_04.mp4)
  5. Tutorial 5 (tut_05.mp4)
  6. Tutorial 6 (tut_06.mp4)

Acknowledgement

The lecture videos and slides are courtesy of Prof. S. V. Prabhu. The video lectures are from an ISTE workshop held at IIT Bombay, conducted by Profs. S. V. Prabhu and Arunkumar Shridharan. The videos are also available under a Creative Commons licence on YouTube. The contributions of the original creators are gratefully acknowledged.