Scribd
Upload
283 views2 pages

Heat & Mass Transfer-Cengel & Ghajar: 1. Intro and Basic Concepts

This chapter introduces basic concepts of heat and mass transfer. It discusses key thermodynamics concepts like heat transfer occurring due to temperature differences and how thermodynamics describes equilibrium state changes while heat transfer deals with non-equilibrium systems. The three basic mechanisms of heat transfer are identified as conduction, convection and radiation. The chapter then outlines various topics to be covered including the heat conduction equation, steady and transient heat conduction, fundamentals of convection, boiling and condensation, heat exchangers, radiation heat transfer and mass transfer.

Uploaded by

bob
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as DOCX, PDF, TXT or read online on Scribd
283 views2 pages

Heat & Mass Transfer-Cengel & Ghajar: 1. Intro and Basic Concepts

This chapter introduces basic concepts of heat and mass transfer. It discusses key thermodynamics concepts like heat transfer occurring due to temperature differences and how thermodynamics describes equilibrium state changes while heat transfer deals with non-equilibrium systems. The three basic mechanisms of heat transfer are identified as conduction, convection and radiation. The chapter then outlines various topics to be covered including the heat conduction equation, steady and transient heat conduction, fundamentals of convection, boiling and condensation, heat exchangers, radiation heat transfer and mass transfer.

Uploaded by

bob
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as DOCX, PDF, TXT or read online on Scribd
You are on page 1/ 2

Heat & Mass transfer- Cengel & Ghajar

1. Intro and Basic concepts

 Heat transfer is about the rate of heat transfer.

 This chapter will be structured as follows:

i) Review of the fundamentals of thermodynamics which form the framework for heat
transfer.

 In thermodynamics: heat- is a form of energy that can be transferred from one system
to another as a result of temperature difference. Heat transfer is the rate at which this
energy transfers.

 Note that although we can determine the amount of heat transfer for any system using
thermodynamic analysis alone- the thermodynamics is concerned with the amount of
heat transfer from one equilibrium state to another- and does not tell us how long the
process will take. It simply tells us how much heat MUST be transfreered to realise a
specific change of state in order to satisfy the conservation of energy principle
(Eout=Ein)

 Thus thermodynamics deals with equilibrium states and changes from one equilibrium
state to another.

 Heat transfer deals with systems that lack thermal equilibrium-> thus nonequilibrium
phenomenon.

 1st Law of Thermodynamics requires the rate of energy transfer into a system to be
equal to the rate of increase of energy of that system

 2nd Law states that the heat is transferred in the direction of decreasing temperature.

 The basic requirements for heat transfer is a temperature difference

ii) Relationship of heat to other forms of energy and review the energy balance

iii) Introduce the 3 basic mechanisms of heat transfer: conduction, convection and
radiation.

iv)

2. Heat Conduction equation


3. Steady Heat conduction
4. Transient Heat conduction
5. Numerical methods in Heat conduction
6. Fundamentals of Convection
7. External Forced Convection
8. Internal Forced Convection
9. Natural Convection
10. Boiling and Condensation
11. Heat exchangers
12. Fundamentals of thermal radiation
13. Radiation Heat transfer
14. Mass Transfer

 Page 2

You might also like