Unit 1 Conduction

15 lecture hours

• 1.1 Fourier’s Law 1.2 Thermal conductivity and thermal resistance 1.3 Derivation of one-dimensional steady state conduction 1.4 Heat Conduction through - Plain wall - Composite walls - Cylinders 1.5 Critical radius of insulation for a cylinder 1.6 Overall heat transfer coefficient 1.7 Heat transfer from an extended surface - Types of fins
• - Heat flow through a rectangular fin, - Infinitely long fin - Efficiency and effectiveness of fin 1.8 Numerical examples

Unit 2 Convection

6 lecture hours

• 2.1 Newton’s law of cooling 2.2 Concept of forced and free convection 2.3 Overall heat transfer coefficient – conduction and convection 2.4 Dimensionless numbers and their physical significance - Reynold’s Number
• - Prandtl number
• - Nusselt Number 2.5 Boundary layer definition and characteristics 2.6 Boundary layer thickness 2.7 Boiling regimes 2.8 General aspects of condensation heat transfer

Unit 3 Radiation 05 11

• Program Name: Diploma Engineering Level: Diploma Branch: Mechanical Engineering Subject Code: DI05019071 Subject Name: Heat and Mass Transfer 3.1 Absorptivity
• Reflectivity, and Transmissivity 3.2 Black
• white, and grey body 3.3 Emissive power and emissivity
• 3.4 Laws of radiation - Planck - Stefan – Boltzmann
• - Wein’s displacement - Kirchhoff’s law - Lambert’s cosine law 3.5 Concept of shape factor 3.6 Concept of radiation shield 3.7 Numerical examples

Unit 4 Heat exchanger

14 lecture hours

• 4.1 Classification 4.2 Heat exchanger analysis 4.3 LMTD for parallel and counter flow exchanger
• condenser and evaporator 4.4 Overall heat transfer coefficient 4.5 Effectiveness of heat exchanger 4.6 Concept of heat pipe and compact heat exchanger 4.7 Numerical examples

Unit 5 Mass Transfer

5 lecture hours

• 5.1 Modes of mass transfer 5.2 Concentrations
• velocities and fluxes 5.3 Fick’s Law 5.4 Steady state diffusion through a plain membrane 5.5 Steady state equimolar counter diffusion 5.6 Mass transfer coefficient - Convective mass transfer