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JNTU IV Year B. Tech. AE – II semester syllabus
Posted Date: 09 Aug 2008 Resource Type: Articles/Knowledge Sharing Category: Syllabus
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Posted By: sunil Member Level: Diamond
Rating:  Points: 2
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HEAT TRANSFER
(ELECTIVE-IV)
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 ??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.
Tables/Codes: Heat and Mass transfer data book / C.P. Kothandaraman,
Subramanian/ New Age Pub.
TEXT BOOKS :
1. Heat Transfer – Ghoshdastidar – Oxford University Press – II Edition
2. Heat Transfer – P.K.Nag/ TMH
REFERENCES:
1. Fundamentals of Engg. Heat and Mass Transfer / R.C.SACHDEVA / New Age International
2. Essential Heat Transfer - Christopher A Long / Pearson Education
3. Heat Transfer – A Practical Approach – Yunus Cengel, Boles / TMH
4. Heat and Mass Transfer – D.S.Kumar / S.K.Kataria & Sons
5. Heat Transfer / HOLMAN/TMH
6. Fundamentals of Heat Transfer & Mass Transfer- Incropera & Dewitt / John Wiley Pub.
7. Engineering Heat and Mass Transfer – Sarit K. Das / Dhanpat Rai Pub.
8. Heat and Mass Transfer – R. Yadav /CPH
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