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

2.8.1Lumped 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]

4.1.1Stefan Boltzman Law, Kirchoff Law

4.1.2Relationship between Temperature, Frequency and Wavelength

4.1.3Reflectivity, Absorbtivity and Transmissivity

4.3.Shape Factor Algebra

4.4.Electrical Analogy

 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

7.5.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

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
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