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JNTU 2007-2008 III YEAR I SEM. B. TECH. AME - HEAT TRANSFER
Posted Date: 09 Dec 2007 Resource Type: Articles/Knowledge Sharing Category: Syllabus
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Posted By: Sri Member Level: Gold
Rating:  Points: 1
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2007-08
JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY
HYDERABAD
III Year B.Tech. AME I Semester T P C
4+1* 0 4
HEAT TRANSFER
UNIT – I
Introduction : Modes and mechanisms of heat transfer – Basic laws of heat transfer –General discussion
about applications of heat transfer.
Conduction Heat Transfer : Fourier rate equation – General heat conduction equation in Cartesian,
Cylindrical and Spherical coordinates.
UNIT – II
Simplification and forms of the field equation – steady, unsteady and periodic heat transfer – Initial and
boundary conditions.
One Dimensional Steady State Conduction Heat Transfer : Homogeneous slabs, hollow cylinders
and spheres – overall heat transfer coefficient – electrical analogy – Critical radius of insulation
One Dimensional Steady State Conduction Heat Transfer : Variable Thermal conductivity – systems
with heat sources or Heat generation. Extended surface (fins) Heat Transfer – Long Fin, Fin with insulated
tip and Short Fin, Application to error measurement of Temperature.
UNIT III
One Dimensional Transient Conduction Heat Transfer : Systems with negligible internal resistance
– Significance of Biot and Fourier Numbers - Chart solutions of transient conduction systems- Concept of
Functional Body
UNIT – IV
Convective Heat Transfer : Classification of systems based on causation of flow, condition of flow,
configuration of flow and medium of flow – Dimensional analysis as a tool for experimental investigation –
Buckingham Pi Theorem and method, application for developing semi – empirical non- dimensional
correlation for convection heat transfer – Significance of non-dimensional numbers – Concepts of Continuity,
Momentum and Energy Equations.
Forced convection: External Flows : Concepts about hydrodynamic and thermal boundary layer and
use of empirical correlations for convective heat transfer -Flat plates and Cylinders.
Internal Flows : Concepts about Hydrodynamic and Thermal Entry Lengths – Division of internal flow
based on this –Use of empirical relations for Horizontal Pipe Flow and annulus flow.
UNIT – V
Free Convection : Development of Hydrodynamic and thermal boundary layer along a vertical plate - Use
of empirical relations for Vertical plates and pipes.
UNIT VI
Heat Transfer with Phase Change: Boiling: – Pool boiling – Regimes Calculations on Nucleate
boiling, Critical Heat flux and Film boiling.
Condensation: Film wise and drop wise condensation –Nusselt’s Theory of Condensation on a vertical
plate - Film condensation on vertical and horizontal cylinders using empirical correlations.
UNIT VII
Heat Exchangers:
Classification of heat exchangers – overall heat transfer Coefficient and fouling factor – Concepts of LMTD
and NTU methods - Problems using LMTD and NTU methods.
UNIT VIII
Radiation Heat Transfer :
Emission characteristics and laws of black-body radiation – Irradiation – total and monochromatic quantities
– laws of Planck, Wien, Kirchoff, Lambert, Stefan and Boltzmann– heat exchange between two black
bodies – concepts of shape factor – Emissivity – heat exchange between grey bodies – radiation shields
– electrical analogy for radiation networks.
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