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HEAT TRANSFER

Course Targets:
This course is meant to impart data of rules of warmth switch and analyze the warmth alternate course of
in varied modes for the analysis of charge of warmth switch and the temperature distribution in numerous
configurations.
UNIT – I
INTRODUCTION: Modes and mechanisms of warmth switch – fundamental legal guidelines of warmth switch –Common dialogue
about purposes of warmth switch.
CONDUCTION HEAT TRANSFER: Fourier charge equation – common warmth conduction equation in cartesian,
cylindrical and Spherical coordinates. Regular, unsteady and periodic warmth switch – preliminary and boundary
circumstances.
ONE DIMENSIONAL STEADY STATE CONDUCTION HEAT TRANSFER: Homogeneous slabs, hole
cylinders and spheres – total warmth switch coefficient – electrical analogy – essential radius of insulationVariable thermal conductivity – methods with warmth sources or warmth technology,
UNIT – II
prolonged floor (fins) warmth Switch – lengthy fin, fin with insulated tip and brief fin, software to error
measurement of temperature.
ONE DIMENSIONAL TRANSIENT CONDUCTION HEAT TRANSFER: Programs with negligible inside
resistance – significance of biot and fourier numbers – chart options of transient conduction methods
UNIT – III
CONVECTIVE HEAT TRANSFER: Classification of convective warmth switch – dimensional evaluation as a software
for experimental investigation – Buckingham Pi Theorem for pressured and free convection, software for
creating semi – empirical non- dimensional correlation for convective warmth switch – Significance of nondimensional numbers – ideas of continuity, momentum and Vitality Equations.
UNIT –IV
FORCED CONVECTION
EXTERNAL FLOWS: Ideas about hydrodynamic and thermal boundary layer and use of empirical
correlations for convective warmth switch -flat plates and cylinders.
INTERNAL FLOWS: Ideas about hydrodynamic and thermal entry lengths – division of inside move primarily based
on this –use of empirical relations for horizontal pipe move and annulus move.
FREE CONVECTION: Growth of hydrodynamic and thermal boundary layer alongside a vertical plate – use
of empirical relations for vertical plates and pipes.

III 12 months – II Semester
L T P C
Four zero zero 3
HEAT TRANSFER
UNIT V
HEAT TRANSFER WITH PHASE CHANGE
BOILING: Pool boiling – regimes- calculations on nucleate boiling, essential warmth flux and movie boiling.
CONDENSATION: Movie smart and drop smart condensation –Nusselt’s concept of condensation on a vertical plate
– movie condensation on vertical and horizontal cylinders utilizing empirical correlations.
HEAT EXCHANGERS:
Classification of warmth exchangers – total warmth switch coefficient and fouling issue – ideas of LMTD and
NTU strategies – Issues.
UNIT VI
RADIATION HEAT TRANSFER:
Emission traits and legal guidelines of black-body radiation – Irradiation – whole and monochromatic portions –
legal guidelines of Planck, Wien, Kirchoff, Lambert, Stefan and Boltzmann– warmth alternate between two black our bodies –
ideas of form issue – Emissivity – warmth alternate between gray our bodies – radiation shields – electrical
analogy for radiation networks.
Textual content Books:
1. Warmth Switch /JP HOLMAN/TMH
2. Warmth Switch /P.Ok.Nag/ TMH
3. Ideas of Warmth Switch /Frank Kreith, RM Manglik & MS Bohn/Cengage studying publishers
References:
1. Warmth and Mass Switch /Arora and Domkundwar/Dhanpatrai & sons
2. Fundamentals of Engg. Warmth and Mass Switch / R.C.Sachdeva / New Age Worldwide
3. Warmth and Mass Switch /Cengel/McGraw Hill.
4. Warmth and Mass Switch /D.S.Kumar / S.Ok.Kataria & Sons
5. A Textual content guide on Warmth Switch-4th Version/ S.P Sukhatme/Universities Press
Course outcomes:
The coed after present process this course is anticipated to know the rules of warmth switch and be capable to
apply to sensible conditions the place in warmth alternate takes place by means of varied modes of warmth switch together with
part change.