Heat Transfer

Course Objective:
To introduce the concepts of heat transfer to enable the students to design components subjected to thermal loading.

1. Review on Basic Concepts of Heat Transfer[1 hour]
1. Mechanism of Heat Transfer
2. Factors Affecting Heat Transfer
3. Engineering Applications


2. Conduction Heat Transfer[12 hours]
1. General Differential equation of Conduction
2. Fourier Law of Conduction
3. Cartesian and Cylindrical Coordinates
4. One and Two Dimensional Steady State Heat Conduction
5. Conduction through Plane Wall, Cylinders and Spherical systems
6. Composite Systems
7. Conduction with Internal Heat Generation
8. Unsteady Heat Conduction
1. Lumped Analysis
2. Use of Heislers Chart


3. Convection Heat Transfer[12 hours]
1. Newton’s law of cooling
2. Convective Heat Transfer Coefficients
3. Boundary Layer Concepts
4. Free Convection
1. Dimensional Analysis
2. Flow over Plates, Cylinders and Spheres
3. Forced Convection
1. Dimensional Analysis
2. Flow over Plates, Cylinders and Spheres
3. Laminar and Turbulent Flow
4. Combined Laminar and Turbulent
   Flow over Bank of tubes


4. Radiation Heat Transfer[8 hours]
1. Laws of Radiation
1. Stefan Boltzman Law, Kirchoff Law
2. Relationship between Temperature, Frequency and Wavelength
3. Reflectivity, Absorbtivity and Transmissivity
2. Black and Grey body radiation
3. Shape Factor Algebra
4. Electrical Analogy
5. Radiation Shields
6. Introduction to Gas Radiation


5. Phase Change Heat Transfer[2 hours]
1. Nusselts Theory of Condensation
2. Pool Boiling and Flow Boiling
3. Correlations in Boiling and Condensation


6. Applications of Heat Transfer[6 hours]
1. Fins
1. Types of Fins
2. Heat Dissipation from Fins
3. Fin Performance
2. Heat exchanger
1. Types of Heat Exchangers
2. LMTD Method of Heat Exchanger Analysis
3. Effectiveness
4. NTU Method of Heat Exchanger Analysis
5. Overall Heat Transfer Coefficient
6. Fouling Factors


7. Introduction to Mass Transfer[4 hours]
1. Basic Concepts
2. Diffusion Mass Transfer
3. Fick’s Law of Diffusion
4. Steady State Molecular Diffusion
5. Convective Mass Transfer
6. Momentum, Heat and Mass Transfer Analogy
7. Convective Mass Transfer Correlations

1. Holman J.P “Heat and Mass Transfer” Tata McGraw-Hill.
2. Ozisik M.N, “Heat Transfer”, McGraw-Hill Book Co.,.
3. Yadav R “Heat and Mass Transfer” Central Publishing House.
4. Sachdeva R C, “Fundamentals of Engineering Heat and Mass Transfer” New Age International.
5. Nag P.K, “Heat Transfer”, Tata McGraw-Hill, New Delhi.
   

Laboratories:1.5 Hr/Week

Lab 1 Conduction Heat Transfer
Verification of Conduction Laws
Drawing of Temperature Profile
Comparison between Thermal Conductivities of Different Types of Materials

Lab 2 Convection Heat Transfer
Free Convection from Different Types of Plates
Force Convection from Different Types of Plates

Lab 3 Radiation Heat Transfer
Relationship between Temperature, Frequency and Wavelength 
Reflectivity, Absorbtivity and Transmissivity

Lab 4 Boiling Heat Transfer
Mass and Energy Balances
Efficiency
Effects of Mixture on Boiling Heat Transfer

Lab 5 Heat Exchanger
Energy Balance of Different Types of Heat Exchangers
Drawing of Temperature Profiles of Different Types of Heat Exchangers
Effectiveness of Different Types of Heat Exchangers

Lab 6 Fins
Drawing of Temperature Profiles of Different Types of Fins
Heat Dissipation from Different Types of Fins