- Title: Heat and Mass Transfer
- Department: Mechanical Engineering
- Author: Prof. U.N.Gaitonde ,Prof. S.P.Sukhatme
- University: IIT bombay
- Type: WebLink
- Abstract:
Module No
Content
No. of Hours
1
INTRODUCTION – Typical heat transfer situations,
1 hour
2
Modes of heat transfer
1 hour
3
Introduction to laws, some heat transfer parameters
1 hour
4
CONDUCTION – Fourier’s law and thermal conductivity
1 hour
5
Differential equation of heat conduction, boundary conditions and initial conditions
1 hour
6
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)
3 hours
7
Special one dimensional steady state situations – heat generation, pin fins
Other fin configurations (exercise)
2 hours
8
Two dimensional steady state situations
1 hour
9
Transient conduction
Lumped capacitance model
One dimensional transient problems – analytical solutions
One dimensional Heisler charts
Product solutions
2 hours
10
Numerical methods in conduction
Steady state one dimensional and two dimensional problems
One dimensional transient problems – Explicit and implicit
2 hours
11
RADIATION
Basic ideas, spectrum, basic definitions
1 hour
12
Laws of radiation, black body radiation, Planck’s law, Stefan Boltzman law, Wien’s Displacement law, Lambert cosine law
1 hour
13
Radiation exchange between black surfaces, shape factor
3 hours
14
Radiation exchange between gray surfaces – Radiosity-Irradiation method
Parallel plates
2 hours
15
Enclosures (non-participating gas)
1 hour
16
Gas radiation
1 hour
17
FORCED CONVECTION
Concepts of fluid mechanics
1 hour
18
Differential equation of heat convection
1 hour
19
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
2 hours
20
Heat transfer in laminar flow and turbulent flow over a flat plate, Reynolds analogy
1 hour
21
Flow across a cylinder and sphere, flow across banks of tubes, impinging jets
1 hour
22
NATURAL CONVECTION
Introduction, governing equations,Vertical plate – Pohlhausen solution, horizontal cylinder, horizontal plate, enclosed spaces
3 hours
23
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
4 hours
24
Condensation and Boiling
Dimensionless parameters, boiling modes, correlations, Forced convection boiling, laminar film condensation on a vertical plate, turbulent film condensation
2 hours
25
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.
3 hours
Total number of hours
42