Subject Syllabus
ME-701 - Heat and Mass Transfer
ME · Semester 7
Course Modules
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thermal resistance and conductance, analogy between flow of heat and electricity, combined heat transfer processConduction: Fourier heat conduction equation, its form in rectangular, cylindrical and spherical coordinates, thermal diffusivity, linear one dimensional steady state conduction through a slab, tubes, spherical shells and composite structures, electrical analogies, critical- insulation-thickness for pipes, effect of variable thermal conductivity.
Extended Surfaces (fins): Heat transfer from a straight and annular fin (plate) for a uniform cross sectionerror in measurement of temperature in a thermometer well, fin efficiency, fin effectiveness, applicationsUnsteady heat conduction: Transient and periodic conduction, heating and cooling of bodies with known temperatures distribution, systems with infinite thermal conductivity, response of thermocouples.
Heat Exchangers: Types- parallel flow, counter flowevaporator and condensers, overall heat transfers coefficient, fouling factors, log-mean temperature difference (LMTD), method of heat exchanger analysis, effectiveness of heat exchangerNTU methodMass transfer: Fick's law, equi-molar diffusion, diffusion coefficient, analogy with heat transfer, diffusion of vapour in a stationary medium.
reflection and emission of radiationPlanck's distribution law, radiation from real surfacesradiation heat exchange between black and gray surfaces, shape factor, analogical electrical network, radiation shields.Boiling and condensation: Film wise and drop wise condensationNusselt theory for film wise condensation on a vertical plate and its modification for horizontal tubesboiling heat transfer phenomenon, regimes of boiling, boiling correlations.