Syllabus Heat Transfer - (BE05000291) Total Credits Assessment Pattern and Marks Total Marks Theory Tutorial / Practical ESE (E) PA/CA (M) PA/CA (I) PBL (I) ESE (V) 04 70 30 20 30 50 200 Sr. No. Content 1. Conduction : Fourier’s law, effect of temperature on thermal conductivity of different solids, liquids and gases, generalized equation in Cartesian, cylindrical and spherical coordinates and its reduction to specific cases, 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. (Chapter - 1) Heat transfer from extended surface : Types of fin, heat flow through uniform cross-sectional area fin for various cases like infinitely long fin, fin insulated at the tip and fin losing heat at the tip, efficiency and effectiveness of fin, Estimation of error in temperature measurement in a thermometer well. (Chapter - 2) Transient heat conduction : Lumped capacitance method for bodies of infinite thermal conductivity, time constant. (Chapter - 3) 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 for Von-Karman integral momentum and energy equations. (Chapter - 4) 3. Radiation : Absorptivity, reflectivity and transmissivity, black, white and grey body, emissive power, emissivity, Kirchhoff’s law, Planck’s law, Rayleigh-Jeans’ law, Wien’s law, Wien’s displacement law, Stefan-Boltzmann law, intensity of radiation, radiation heat exchange between black bodies, shape factor, electrical analogy, radiation heat exchange between gray bodies, radiosity, irradiation, radiation shields. (Chapter - 5) 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-NTU method for parallel and counter flow heat exchanger, introduction of heat pipe and compact heat exchanger. (Chapter - 6) 5. Two-phase heat transfer : Boiling of liquids, Pool boiling curve, modes of pool boiling, correlations for pool boiling, condensation of vapor, film wise and drop wise condensation, condensation on flat surfaces and horizontal tubes. (Chapter - 7)
