6ME2: HEAT TRANSFER

 

 

Introduction to heat transfer processes: thermal conductivity of solids, Liquids and gases; effect of temperature.
Conduction: Fourier's law; general 3 dimensionals conduction equation; different kinds of boundary conditions; nature of differential equations; one dimensional heat conduction with and without heat generation; electrical analogy; heat conduction through composite walls; critical thickness of insulation; heat transfer from finned surfaces; fin effeciency and effectiveness
Convection: Review of Navier - Stokes and energy equations, hydrodynamic and thermal boundary layers; laminas boundary layer equations; forced convections appropriate non dimensional members; flow over flat plate; similarity solution; Von Karman's method; effect of Prandtl number; laminar flow through circular pipe; constant heat flux and constant wall temperature conditions, empirical relations.
Natural Convection: Dimensional analysis, Grashoff number, boundary layers in external flows (flow over a plate only), boundary layer equations and their solutions, heat transfer correlations
Heat Transfer with change of phase: Nature of vaporization phenomena; different regimes of boiling heat transfer; correlations for saturated liquid vaporization; condensation on flat plates; correlations of experimental results, drop wise condensation
Heat Exchanger: Different types of heat exchanger, arithmetic and logarithmatic mean temperature differences, heat transfer coefficient for parallel counter and cross flow type heat exchanger; effectiveness of heat exchanger, N.T.U. method, fouling factor
Thermal Radiation: Plank distribution law. Krichoff's law: radiation: radiation properties, diffuse radiations; Lambert's law. Radiation intensity, heat exchange between two block bodies heat exchange between gray bodies. Shape Factor: electrical analogy; retardiating surfaces heat transfer in presence of retradiating surfaces.
Introduction to Mass Transfer: Mass and mole concentrations. molecular diffusion, eddy, diffusion from an evaporation fluid surface. Mass transfer in laminar and turbulent convections. Raynold's analogy. Combined heat and mass transfer the wet and dry build thermometer.


List of Recommended Books:

  1. Fundamental of heat and mass transfer, R.C.Schdeva, New Age Publication

  2. Fundamental of heat and mass transfer, C.P.Kothandaraman, New Age Publication

  3. Process Heat and Mass transfer, KERN, TMH

  4. Heat and Mass transfer, Dr. D.S.Kumar, S.K.Kataria & Sons

  5. Heat and Mass transfer, Alan J. Chapman, Macmillan Publishing company, New York

  6. Heat transfer, J.P.Holman. TMH