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Heat transfer


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Heat transfer

  1. 1. HEAT TRANSFER, Lesson Planning Class III B Tech I semester Number of Cumulative Date ofSr. Name of the Topic to be Covered Periods Number of CompletionNo. Required Periods Unit I Introduction : Modes and mechanisms of heat 1 01 01 transfer Basic laws of heat transfer –General discussion about 2 applications of heat transfer. 01 02 3 Conduction Heat Transfer : Fourier rate equation 01 03 General heat conduction equation in Cartesian 4 01 04 coordinates General heat conduction equation in Cylindrical 5 01 05 coordinates General heat conduction equation in Spherical 6 01 06 coordinates Unit II Simplification and forms of the field equation – 7 01 07 steady, unsteady and periodic heat transfer 8 Initial and boundary conditions 01 08 One Dimensional Steady State Conduction Heat 9 Transfer: Homogeneous slabs, hollow cylinders and 02 10 spheres overall heat transfer coefficient – electrical analogy –10 Critical radius of insulation 02 12 One Dimensional Steady State Conduction Heat11 01 13 Transfer: Variable Thermal conductivity systems with heat sources or Heat generation.12 01 14 Extended surface (fins) Heat Transfer – Long Fin, Fin with insulated tip and Short Fin,13 01 15 Application to error measurement of Temperature
  2. 2. Unit - III One Dimensional Transient Conduction Heat14 Transfer: Systems with negligible internal 02 17 resistance15 Significance of Biot and Fourier Numbers 02 1916 Chart solutions of transient conduction systems 02 2117 Concept of Functional Body 02 23 Unit - IV Convective Heat Transfer : Classification of18 systems based on causation of flow, condition of 02 25 flow, configuration of flow and medium of flow Dimensional analysis as a tool for experimental19 investigation – Buckingham Pi Theorem and 01 26 method application for developing semi – empirical non-20 01 27 dimensional correlation for convection heat transfer Significance of non-dimensional numbers –21 Concepts of Continuity, Momentum and Energy 01 28 Equations Forced convection: External Flows: Concepts about hydrodynamic and thermal boundary layer22 and use of empirical correlations for convective 02 30 heat transfer -Flat plates and Cylinders. Internal Flows: Concepts about Hydrodynamic and Thermal Entry Lengths – Division of internal23 flow based on this –Use of empirical relations for 02 31 Horizontal Pipe Flow and annulus flow. Unit V Free Convection: Development of Hydrodynamic24 03 34 and thermal boundary layer along a vertical plate Use of empirical relations for Vertical plates and pipes.25 03 3726 Problems on convection 03 40 Unit - VI Heat Transfer with Phase Change: Boiling: –27 02 42 Pool boiling – Regimes Calculations on Nucleate boiling, Critical28 02 44 Heat flux and Film boiling Condensation: Film wise and drop wise29 01 45 condensation –Nusselt’s Theory of Condensation
  3. 3. on a vertical plate - Film condensation on vertical and horizontal30 01 46 cylinders using empirical correlations Unit- VII Heat Exchangers:Classification of heat 01 4731 exchangers overall heat transfer Coefficient and fouling factor 02 4932 – Concepts of LMTD and NTU methods Problems using LMTD and NTU methods. 03 5233 Unit- VIII Radiation Heat Transfer : 02 54 Emission characteristics and laws of black-body34 radiation – Irradiation – total and monochromatic quantities laws of Planck, Wien, Kirchoff, Lambert, Stefan 02 5635 and Boltzmann– heat exchange between two black bodies – concepts 02 5836 of shape factor – Emissivity heat exchange between grey bodies – radiation 02 60 shields – electrical analogy for radiation networks.37