ME 604
Lecture |
: |
3 |
Year |
: III |
Tutorial |
: |
1 |
Part |
: I |
Practical |
: |
3/2 |
Course Objective:
To introduce the concepts of heat transfer to enable the students to design components subjected to thermal loading.
Course Outlines: |
|
1. Review on Basic Concepts of Heat Transfer |
[1 hour] |
1.1.Mechanism of Heat Transfer
1.2.Factors Affecting Heat Transfer
1.3.Engineering Applications
2. Conduction Heat Transfer |
[12 hours] |
2.1.General Differential equation of Conduction
2.2.Fourier Law of Conduction
2.3.Cartesian and Cylindrical Coordinates
2.4.One and Two Dimensional Steady State Heat Conduction
2.5.Conduction through Plane Wall, Cylinders and Spherical systems
2.6.Composite Systems
2.7.Conduction with Internal Heat Generation
2.8.Unsteady Heat Conduction
2.8.1Lumped Analysis
2.8.2Use of Heislers Chart
3. Convection Heat Transfer |
[12 hours] |
3.1.Newton’s law of cooling
3.2.Convective Heat Transfer Coefficients
3.3.Boundary Layer Concepts
3.4.Free Convection
3.4.1Dimensional Analysis
3.4.2Flow over Plates, Cylinders and Spheres
3.5.Forced Convection
3.5.1Dimensional Analysis
3.5.2Flow over Plates, Cylinders and Spheres
3.5.3Laminar and Turbulent Flow
3.5.4Combined Laminar and Turbulent Flow over Bank of tubes
4. Radiation Heat Transfer |
[8 hours] |
4.1.Laws of Radiation
4.1.1Stefan Boltzman Law, Kirchoff Law
4.1.2Relationship between Temperature, Frequency and Wavelength
4.1.3Reflectivity, Absorbtivity and Transmissivity
4.2.Black and Grey body radiation
4.3.Shape Factor Algebra
4.4.Electrical Analogy
4.5.Radiation Shields
4.6.Introduction to Gas Radiation
5. Phase Change Heat Transfer |
[2 hours] |
5.1.Nusselts Theory of Condensation
5.2.Pool Boiling and Flow Boiling
5.3.Correlations in Boiling and Condensation
6. Applications of Heat Transfer |
[6 hours] |
6.1.Fins
6.1.1Types of Fins
6.1.2Heat Dissipation from Fins
6.1.3Fin Performance
6.2.6.2 Heat exchanger
6.2.1Types of Heat Exchangers
6.2.2LMTD Method of Heat Exchanger Analysis
6.2.3Effectiveness
6.2.4NTU Method of Heat Exchanger Analysis
6.2.5Overall Heat Transfer Coefficient
6.2.6Fouling Factors
7. Introduction to Mass Transfer |
[4 hours] |
7.1.Basic Concepts
7.2.Diffusion Mass Transfer
7.3.Fick’s Law of Diffusion
7.4.Steady State Molecular Diffusion
7.5.Convective Mass Transfer
7.6.Momentum, Heat and Mass Transfer Analogy
7.7.Convective Mass Transfer Correlations
Practical:
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, Absorptivity 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
References:
1.Holman J.P “Heat Transfer” Tata McGraw-Hill.
2.Ozisik M.N, “Heat Transfer”, McGraw-Hill Book Co.
3.Incropera, DeWitt, Bergman, Lavine, “Fundamentals of Heat and Mass Transfer”, Wiley India.
4.Yadav R “Heat and Mass Transfer” Central Publishing House.
5.Sachdeva R C, “Fundamentals of Engineering Heat and Mass Transfer” New Age
International. |
|||||||
6. Nag |
P.K, |
“Heat |
Transfer”, |
Tata |
McGraw-Hill, |
New |
Delhi. |
Evaluation Scheme:
There will be questions covering all the chapters of the syllabus. The evaluation scheme for the questions will be as indicated in the table below:
Unit |
Chapter |
Topics |
Marks |
|
1 |
2 |
2.1 to 2.6 |
16 |
|
2 |
2 |
2.7 & 2.8 |
16 |
|
3 |
3.1 to 3.4 |
|||
3 |
3 |
3.5 |
16 |
|
5 |
all |
|||
4 |
1 & 4 |
all |
16 |
|
5 |
6 & 7 |
all |
16 |
|
Total |
80 |