Heat and Mass Transfer
Chapter 1
INTRODUCTION AND BASIC
CONCEPTS
Engr. Naveed Husnain
Department of Mechanical Engineering
COMSATS Institute of Information &
Technology, Sahiwal
, Heat and Mass Transfer
• PREREQUISITES: MEE 120, MEE 326
• RECOMMENDED BOOKS:
• Heat Transfer: A Practical Approach, 2nd Edition by Yunus A.
Çengel, Published by McGraw Hill Professional, 2003, ISBN
0072458933, 9780072458930
• Fundamentals of Heat and Mass transfer,6th Edition by Frank P.
Incropera, David P. DeWitt, Theodore L. Bergman, Adrienne S.
Lavine, Published by John Wiley, 2006, ISBN 0471457280,
9780471457282
• Principles of Heat Transfer, 5th Edition, revised by Frank Kreith,
Mark Bohn, Published by PWS Pub. Co, 1997, ISBN 0534954200,
9780534954208
2
, Objectives
• Understand how thermodynamics and heat transfer are related
to each other
• Distinguish thermal energy from other forms of energy, and heat
transfer from other forms of energy transfer
• Perform general energy balances as well as surface energy
balances
• Understand the basic mechanisms of heat transfer, which are
conduction, convection, and radiation, and Fourier's law of heat
conduction, Newton's law of cooling, and the Stefan–Boltzmann
law of radiation
• Identify the mechanisms of heat transfer that occur
simultaneously in practice
• Develop an awareness of the cost associated with heat losses
• Solve various heat transfer problems encountered in practice
3
, THERMODYNAMICS AND HEAT TRANSFER
• Heat: The form of energy that can be transferred from one
system to another as a result of temperature difference.
• Thermodynamics is concerned with the amount of heat
transfer as a system undergoes a process from one
equilibrium state to another.
• Heat Transfer deals with the determination of the rates of
such energy transfers as well as variation of temperature.
• The transfer of energy as heat is always from the higher-
temperature medium to the lower-temperature one.
• Heat transfer stops when the two mediums reach the same
temperature.
• Heat can be transferred in three different modes:
conduction, convection, radiation
4
Chapter 1
INTRODUCTION AND BASIC
CONCEPTS
Engr. Naveed Husnain
Department of Mechanical Engineering
COMSATS Institute of Information &
Technology, Sahiwal
, Heat and Mass Transfer
• PREREQUISITES: MEE 120, MEE 326
• RECOMMENDED BOOKS:
• Heat Transfer: A Practical Approach, 2nd Edition by Yunus A.
Çengel, Published by McGraw Hill Professional, 2003, ISBN
0072458933, 9780072458930
• Fundamentals of Heat and Mass transfer,6th Edition by Frank P.
Incropera, David P. DeWitt, Theodore L. Bergman, Adrienne S.
Lavine, Published by John Wiley, 2006, ISBN 0471457280,
9780471457282
• Principles of Heat Transfer, 5th Edition, revised by Frank Kreith,
Mark Bohn, Published by PWS Pub. Co, 1997, ISBN 0534954200,
9780534954208
2
, Objectives
• Understand how thermodynamics and heat transfer are related
to each other
• Distinguish thermal energy from other forms of energy, and heat
transfer from other forms of energy transfer
• Perform general energy balances as well as surface energy
balances
• Understand the basic mechanisms of heat transfer, which are
conduction, convection, and radiation, and Fourier's law of heat
conduction, Newton's law of cooling, and the Stefan–Boltzmann
law of radiation
• Identify the mechanisms of heat transfer that occur
simultaneously in practice
• Develop an awareness of the cost associated with heat losses
• Solve various heat transfer problems encountered in practice
3
, THERMODYNAMICS AND HEAT TRANSFER
• Heat: The form of energy that can be transferred from one
system to another as a result of temperature difference.
• Thermodynamics is concerned with the amount of heat
transfer as a system undergoes a process from one
equilibrium state to another.
• Heat Transfer deals with the determination of the rates of
such energy transfers as well as variation of temperature.
• The transfer of energy as heat is always from the higher-
temperature medium to the lower-temperature one.
• Heat transfer stops when the two mediums reach the same
temperature.
• Heat can be transferred in three different modes:
conduction, convection, radiation
4
