preface - cen58933_fm.qxd 10:56 AM Page xviii PREFACE...

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OBJECTIVES H eat transfer is a basic science that deals with the rate of transfer of ther- mal energy. This introductory text is intended for use in a first course in heat transfer for undergraduate engineering students, and as a reference book for practicing engineers. The objectives of this text are • To cover the basic principles of heat transfer. • To present a wealth of real-world engineering applications to give stu- dents a feel for engineering practice. • To develop an intuitive understanding of the subject matter by empha- sizing the physics and physical arguments. Students are assumed to have completed their basic physics and calculus se- quence. The completion of first courses in thermodynamics, fluid mechanics, and differential equations prior to taking heat transfer is desirable. The rele- vant concepts from these topics are introduced and reviewed as needed. In engineering practice, an understanding of the mechanisms of heat trans- fer is becoming increasingly important since heat transfer plays a crucial role in the design of vehicles, power plants, refrigerators, electronic devices, build- ings, and bridges, among other things. Even a chef needs to have an intuitive understanding of the heat transfer mechanism in order to cook the food “right” by adjusting the rate of heat transfer. We may not be aware of it, but we al- ready use the principles of heat transfer when seeking thermal comfort. We in- sulate our bodies by putting on heavy coats in winter, and we minimize heat gain by radiation by staying in shady places in summer. We speed up the cool- ing of hot food by blowing on it and keep warm in cold weather by cuddling up and thus minimizing the exposed surface area. That is, we already use heat transfer whether we realize it or not. GENERAL APPROACH This text is the outcome of an attempt to have a textbook for a practically ori- ented heat transfer course for engineering students. The text covers the stan- dard topics of heat transfer with an emphasis on physics and real-world applications, while de-emphasizing intimidating heavy mathematical aspects. This approach is more in line with students’ intuition and makes learning the subject matter much easier. The philosophy that contributed to the warm reception of the first edition of this book has remained unchanged. The goal throughout this project has been to offer an engineering textbook that P REFACE xviii
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• Talks directly to the minds of tomorrow’s engineers in a simple yet pre- cise manner. • Encourages creative thinking and development of a deeper understand- ing of the subject matter. • Is read by students with interest and enthusiasm rather than being used as just an aid to solve problems.
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This note was uploaded on 01/28/2010 for the course HEAT ENG taught by Professor Ghaz during the Spring '10 term at University of Guelph.

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preface - cen58933_fm.qxd 10:56 AM Page xviii PREFACE...

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