Government Engineering College, Bharuch

Department of Mechanical Engineering

Programme: B.E. Mechanical (UG)

Course: Heat Transfer (HT)

Course Code: 3151909

Class: 5th Semester (ODD)

Teaching Scheme (L/T/P) : 04/00/02

No.

Chapter

Hrs.

Faculty

1

 

Fundamental: Modes of heat transfer, effect of temperature on thermal conductivity of different solids, liquids and gases, derivation of generalized equation in Cartesian, cylindrical and spherical coordinates and its reduction to specific cases, General laws of heat transfer

Conduction:  Fourier’s  law,  One  dimensional  steady  state  conduction,  heat conduction through plane and composite walls, cylinders and spheres, electrical analogy, critical radius of insulation for cylinder and sphere, overall heat transfer coefficient.

14

C K Makwana

 Transient heat conduction- lumped heat capacity analysis, time constant, transient heat conduction in solids with finite conduction and convective resistances

 

2

D.A.Pandey

 Heat transfer from extended surface: Types of fin, heat flow through rectangular fin, infinitely long fin, fin insulated at the tip and fin losing heat at the tip, efficiency and effectiveness of fin,  Biot  number, Estimation of error in temperature measurement in a thermometer well

2

K.V.Chaudhary

2

Convection:  Newton’s law of cooling, Dimensional analysis applied to forced and free convection, dimensionless numbers and their physical significance, empirical correlations for free and forced convection Continuity, momentum and energy

equations, thermal and hydrodynamic boundary layer, Blasius solution for laminar boundary layer, General solution of Von-Karman integral momentum equation

12

K.V.Chaudhary

3

Radiation: Absorptivity, reflectivity and transmissivity, black, white and grey body,emissive power and emissivity, laws of radiation - Planck, Stefan-Boltzmann, Wein’s

displacement, Kirchhoff’s law, intensity of radiation and solid angle, Lambert’s cosine law

Radiation heat exchange between black bodies, shape factor, heat exchange between non-black bodies- infinite parallel planes and infinite long concentric cylinders, radiation shield, heat exchange between two grey surfaces, electrical analogy

12

D.A.Pandey

4

Heat exchanger: Classification, heat exchanger analysis, LMTD for parallel and counter flow exchanger, condenser and evaporator, overall heat transfer coefficient,fouling factor, correction factors for multi pass arrangement, effectiveness and number of transfer unit for parallel and counter flow heat exchanger, introduction of heat pipe and compact heat exchanger

8

A.J.Modi

Lecture 1 

 

5

Two-phase heat transfer: Boiling of liquids, Pool boiling curve, different types of pool boiling, condensation of vapor. Film wise & drop wise condensation.

6

 

A.J.Modi

 

Practical list