Syllabus
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Course Code: MTTH-103 Course Name: Advanced Heat Transfer |
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| MODULE NO / UNIT | COURSE SYLLABUS CONTENTS OF MODULE | NOTES |
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| 1 | Conductive Heat Transfer: Review of the basic laws of conduction, convection and radiation. General heat
conduction equation in different co-ordinates. One dimensional steady state conduction with variable thermal
conductivity and with internal distributed heat sources. Extended surfaces review, tapered fins, design
considerations. Two and three dimensional steady-state conduction, method of separation of variables, graphical method, relaxation technique. Unsteady heat conduction: lumped capacitance method, validity of lumped capacitance method, general lumped capacitance analysis, spatial effects, plane wall with convection, radial systems with convection, semiinfinite solid, constant surface temperature and heat fluxes, periodic heating, solutions using Heisler’s charts |
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| 2 | Convective Heat Transfer: Introduction to convection boundary layers, local and average convection
coefficients, laminar and turbulent flow, boundary layer equations, boundary layer similarity, boundary layer
analogies – heat and mass transfer analogy, Reynold’s and Colburn analogies. Forced convection: external forced convection - empirical method, flat plate in parallel flow, cylinder in cross flow, flow over a sphere; internal forced convection – hydrodynamic and thermal considerations, energy balance, laminar flow in circular tubes, convection correlations. Natural Convection: physical considerations, governing equations, laminar free convection on vertical surface, empirical correlations, free convection within parallel plate channels, empirical correlations, combined free and forced convection. Special topics: transpiration cooling, ablation heat transfer, fluidized bed combustion. |
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| 3 | Heat Transfer with Phase Change: dimensionless parameters in boiling and condensation, boiling modes,
pool boiling, correlations, forced convection boiling, physical mechanism of condensation, laminar and turbulent
film condensation, film condensation in tubes, dropwise condensation. Exchangers: Basic design methodologies – LMTD and effectiveness NTU methods, overall heat transfer coefficient, fouling of heat exchangers, classification of heat exchangers according to constructional features: tubular, plate type, extended surface heat exchanger, compact heat exchangers, design of double pipe heat exchangers, plate and heat pipe type, heat transfer enhancement - Passive and active techniques. |
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| 4 | Radiation Heat Transfer: Fundamental concepts, radiation intensity, irradiation, radiosity, black body radiation,
Basic laws of radiation, emission from real surfaces, absorption, reflection and transmission by real surfaces,
Kirchoff’s law, Gray surface, radiative heat exchange between two or more surfaces, view factor, radiation
exchange between opaque, diffuse, gray surface in an enclosure; net radiation exchange at a surface, radiation
exchange between surfaces, blackbody radiation exchange, two-surface enclosure, radiation shields,
multimode heat transfer, radiation exchange with participating media, radiation of gases and vapour. Mass Transfer: physical origins and rate equations, mixture composition, Fick’s law of diffusion, mass transfer in stationary media, steady state diffusion through a plane membrane, equimolal diffusion, diffusion of water vapours through air, mass transfer coefficient, convective mass transfer, correlations. |
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