GITAM University IV SEM Heat transfer Syllabus

GITAM University IV SEM Heat transfer Syllabus

 B.Tech. (BT) IV Semester
HEAT TRANSFER
Course Code : EURBT402 Category: CE
Credits: 3 Hours : 3 per week
UNIT-I
Introduction: modes of heat transfer. Basic laws of heat transfer. Analogy between
heat flow and electrical flow.
Conduction: The fourier heat conduction equation. Steady state and one dimensional
heat conduction through plane wall, cylindrical wall, spherical wall and composite
structures. Heat transfer from extended surfaces. Three dimensional heat conduction
equation. Numerical problems on unsteady state heat conduction through a semiinfinite
slab; through an infinite slab, infinite cylinder, sphere. Critical insulation
thickness.
UNIT-II
Convection: the convective heat transfer coefficient. Introduction to thermal boundary
layer. Dimensionless numbers in heat transfer and their significance. Dimensional
analysis.
Forced convection: heat transfer by forced convection inside tubes and ducts in
laminar transition and turbulent flow. Analogy between momentum and heat transfer.
Reynolds, colburn and prandtl analogies.
Natural convection: natural convection from vertical and horizontal surfaces. Grashoff
number.
UNIT-III
Heat transfer with phase change: heat transfer from condensing vapors. Filmwise and
dropwise condensation. Derivation and practical use of nusselt equations.
Condensation of superheated vapors. Effect of non-condensable gases on rate of
condensation.
Heat transfer by boiling liquids: boiling of saturated liquid. Maximum heat flux and
critical temperature drop – minimum flux and film boiling.
UNIT-IV
Heat transfer by radiation: thermal radiation. Black body radiation. Kirchoff’s law,
emissivity, gray body. Laws of black body radiation. Geometric or shape factor.
Radiation in enclosures with black and gray surfaces. Large parallel plates.
Concentric cylinders and spheres. Combined heat transfer by conduction, convection
and radiation.
UNIT-V
Heat exchangers: types of heat exchangers. Log-mean temperature difference. Energy balances. Overall heat transfer coefficients. Heat exchanger effectiveness. Fouling factors. Design and description of heat transfer equipment. Heat exchangers, condensers, boilers, and kettles. Extended surface equipment.

Text book: Unit operations of chemical engineering. McCabe, Smith and Harriot.
McGraw Hill Book CO.

Reference:
Heat transmission. William McAdams. 3rd ed. 1985. McGrawHill.
Fluid dynamics and Heat transfer. JG.Knudsen and D.L.Katz
Process heat transfer. D.W.Kern. 2002 Tata-McGrawHill.

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