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Heat Transfer

Heat transfer is the discipline which studies the transfer of energy between material bodies. It deals with the rate of flow of heat from one place to another. The applications of this subject are immense. Practically, all the operations that are carried out in a process industry involve the production or absorption in form of heat. The apparatus used for heat transfer and the control of heat flow are of great importance.

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About Heat Transfer

Heat transfer is the discipline which studies the transfer of energy between material bodies. It deals with the rate of flow of heat from one place to another. The applications of this subject are immense. Practically, all the operations that are carried out in a process industry involve the production or absorption in form of heat. The apparatus used for heat transfer and the control of heat flow are of great importance.

The weightage of this subject in GATE Chemical Engineering exam is about 7 to 9 marks.

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Syllabus

Chapter 1

Chapter-1 Introduction of Heat Transfer

1.1  Introduction of Heat Transfer (Difference between heat transfer & thermodynamics, Modes of Heat Transfer and Variation of Thermal Conductivity)

1.2  Introduction of Heat Transfer (Laws of Heat Transfer)

2 videos

1.1 Basics of Heat Transfer & its Mode

Introduction Of Heat Transfer (Laws Of Heat Transfer)

Chapter 2

Chapter-2 Conduction

2.1 Conduction (Trough a Slab, Electrical Analogy of Heat Transfer, Conductive Thermal Resistance and through composite Slab)

2.2 Conduction (Convection Thermal Resistance, Conduction-Convection Heat Transfer through a composite Slab, Overall Heat Transfer Co-efficient and some examples)

2.3 Conduction (Radial Conduction Heat Transfer through a hollow cylinder & Composite Cylinder and an Example)

2.4 Conduction (Conduction Convection Heat Transfer through a Composite Cylinder and an Example)

2.5 Conduction (Generalized Conduction Equation and Thermal Diffusivity)

2.6 Conduction (Critical Radius of Insulation & Its Physical Significance and Some Examples)

2.7 Conduction (Heat Generation in a slab and an Example)

2.8 Conduction (Radial Conduction Heat Transfer through a Hollow Sphere, Critical Radius of Insulation for Spherical Condition and Variable Thermal Conductivity)

2.9 Conduction (Heat Generation in Cylinder or Wire and an Example based on internal Heat Generation)


10 videos

Conduction (Trough a Slab, Electrical Analogy of Heat Transfer, Conductive Thermal Resistance and through composite Slab)

Conduction (Convection Thermal Resistance, Conduction-Convection Heat Transfer Through A Composite Slab, Overall Heat Transfer Co-Efficient And Some Examples)

Conduction (Radial Conduction Heat Transfer Through A Hollow Cylinder & Composite Cylinder And An Example)

Conduction (Conduction Convection Heat Transfer through a Composite Cylinder and an Example)

Conduction (Generalized Conduction Equation and Thermal Diffusivity)

Conduction (Critical Radius of Insulation & Its Physical Significance and Some Examples)

Conduction (Radial Conduction Heat Transfer through a Hollow Sphere, Critical Radius of Insulation for Spherical Condition and Variable Thermal Conductivity)

Conduction (Heat Generation In A Slab And An Example)

Conduction (Heat Generation In Cylinder Or Wire And An Example Based On Internal Heat Generation)

(HT) 2.10 Conduction GATE Qeustions

Chapter 3

Chapter-3 Extended Surfaces (Fins) and Unsteady State Heat Conduction

3.1 Basics of Heat Transfer through Extended Surfaces (Fins)

3.2 Analysis of Rectangular Fin having Infinite Length

3.3 Analysis of Rectangular Fin having Finite Length and Insulated at its Tip

3.4 Analysis of Rectangular Fin having Finite Length and Convicted Heat from its Tip

3.5 Heat Transfer through Rod Connected two Heat Source at Different Temperature

3.6 Infinite Long Fin Approximation

3.7 Fins Efficiency and Effectiveness

3.8 Unsteady State (Transient) Heat Conduction

3.9 Examples based on Unsteady State Heat Conduction


9 videos

3.1 Basics of Heat Transfer From Extended Surfaces (Fins)

3.2 Analysis of Rectangular Fin having Infinite Length

3.4 Analysis Of Rectangular Fin Having Finite Length And Convicted Heat From Its Tip

Heat Transfer through Rod Connected two Heat Source at Different Temperature

Infinite Long Fin Approximation

Fins Efficiency And Effectiveness

Unsteady State (Transient) Heat Conduction

Examples Based On Unsteady State Heat Conduction

(HT) 3.10 Fins and Unsteady Gate Questions

Chapter 4

Chapter-4 Heat Exchangers

4.1 Basics Concepts and Classification of Heat Exchanger

4.2 Temperature Profile of Heat Exchanger

4.3 Logarithmic Mean Temperature Difference

4.4 Example Based on Logarithmic Mean Temperature Difference

4.5 Special Cases Regarding Logarithmic Mean Temperature Difference

4.6 Design of Heat Exchanger by Logarithmic Mean Temperature Difference Method

4.7 Effectiveness of Heat exchangers

4.8 Effectiveness of Parallel and Counter Flow Heat exchangers

4.9 Design of Heat Exchanger by Effectiveness-NTU Method

10 videos

Basics Concepts and Classification of Heat Exchanger

Temperature Profile of Heat Exchanger

Logarithmic Mean Temperature Difference

Example Based on Logarithmic Mean Temperature Difference

Special Cases Regarding Logarithmic Mean Temperature Difference

Design of Heat Exchanger by Logarithmic Mean Temperature Difference Method

Effectiveness of Heat exchangers

Effectiveness of Parallel and Counter Flow Heat exchangers

Design of Heat Exchanger by Effectiveness-NTU Method

(HT) 4.10 Heat Exchangers GATE Questions

Chapter 5

Chapter-5 Radiation

5.1 Fundamentals of Thermal Radiation

5.2 Basic Definition/Terminologies of Thermal Radiation

5.3 Laws of Thermal Radiation (Kirchhoff,Planck,Wiens displacement,Stefan-Boltzmann & Lambert Cosine)

5.4 Shape Factor (Concept of shape factor & Shape factor Relations like Reciprocity,Summation,superposition & Symmetrycity etc)

5.5 Radiation Network & Radiation Exchange

5.6 Radiation Shields & Radiation effect in Temperature Measurement


7 videos

Fundamentals of Thermal Radiation

Basic Definition-Terminologies Of Thermal Radiation

Laws of Thermal Radiation

Radiation Network & Radiation Exchange

Radiation Shields & Radiation effect in Temperature Measurement

(HT) 5.7 Radiation GATE Questions

Chapter 6

Chapter-6 Convection

6.1 Introduction to Convection Heat Transfer

6.2 Basics of Forced Convection Heat Transfer

6.3 Thermal Boundary Layer Concept

6.4 External Forced Convection ( Flow over a flat plate )

6.5 Internal Forced Convection (Flow through Pipe or duct )

6.6 Natural or Free Convection-1

7 videos

Introduction to Convection Heat Transfer

Basics of Forced Convection Heat Transfer

Thermal Boundary layer concept

External Forced Convection ( Flow over a flat plate )

Forced Convection (Internal Flow )

Natural or Free Convection-1

(HT) 6.7 Convection Gate Questions

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