Incropera F.P. Fundamentals heat and mass transfer

7th Edition — John Wiley & Sons - 2011 - ISBN13: 978-0470-50197-9
What’s New in the 7th Edition
Chapter-by-Chapter Content Changes In the previous edition, Chapter 1 Introduction
was modified to emphasize the relevance of heat transfer in various contemporary applications.
Responding to today’s challenges involving energy production and its environmental
impact, an expanded discussion of the efficiency of energy conversion and the production of
greenhouse gases has been added. Chapter 1 has also been modified to embellish the complementary
nature of heat transfer and thermodynamics. The existing treatment of the first
law of thermodynamics is augmented with a new section on the relationship between heat
transfer and the second law of thermodynamics as well as the efficiency of heat engines.
Indeed, the influence of heat transfer on the efficiency of energy conversion is a recurring
theme throughout this edition.
The coverage of micro- and nanoscale effects in Chapter 2 Introduction to Conduction has
been updated, reflecting recent advances. For example, the description of the thermophysical
properties of composite materials is enhanced, with a new discussion of nanofluids. Chapter 3
One-Dimensional, Steady-State Conduction has undergone extensive revision and includes
new material on conduction in porous media, thermoelectric power generation, and micro- as
well as nanoscale systems. Inclusion of these new topics follows recent fundamental discoveries
and is presented through the use of the thermal resistance network concept. Hence the
power and utility of the resistance network approach is further emphasized in this edition.
Chapter 4 Two-Dimensional, Steady-State Conduction has been reduced in length.
Today, systems of linear, algebraic equations are readily solved using standard computer
software or even handheld calculators. Hence the focus of the shortened chapter is on the
application of heat transfer principles to derive the systems of algebraic equations to be
solved and on the discussion and interpretation of results. The discussion of Gauss–Seidel
iteration has been moved to an appendix for instructors wishing to cover that material.
Chapter 5 Transient Conduction was substantially modified in the previous edition
and has been augmented in this edition with a streamlined presentation of the lumpedcapacitance
method.
Chapter 6 Introduction to Convection includes clarification of how temperature-dependent
properties should be evaluated when calculating the convection heat transfer coefficient. The
fundamental aspects of compressible flow are introduced to provide the reader with guidelines
regarding the limits of applicability of the treatment of convection in the text.
Chapter 7 External Flow has been updated and reduced in length. Specifically, presentation
of the similarity solution for flow over a flat plate has been simplified. New results
for flow over noncircular cylinders have been added, replacing the correlations of previous
editions. The discussion of flow across banks of tubes has been shortened, eliminating
redundancy without sacrificing content.
Chapter 8 Internal Flow entry length correlations have been updated, and the discussion
of micro- and nanoscale convection has been modified and linked to the content of
Chapter 3.
Changes to Chapter 9 Free Convection include a new correlation for free convection
from flat plates, replacing a correlation from previous editions. The discussion of boundary
layer effects has been modified.
Aspects of condensation included in Chapter 10 Boiling and Condensation have been
updated to incorporate recent advances in, for example, external condensation on finned
tubes. The effects of surface tension and the presence of noncondensable gases in modifying
condensation phenomena and heat transfer rates are elucidated. The coverage of forced convection
condensation and related enhancement techniques has been expanded, again reflecting
advances reported in the recent literature.
The content of Chapter 11 Heat Exchangers is experiencing a resurgence in interest
due to the critical role such devices play in conventional and alternative energy generation
technologies. A new section illustrates the applicability of heat exchanger analysis to heat
sink design and materials processing. Much of the coverage of compact heat exchangers
included in the previous edition was limited to a specific heat exchanger. Although general
coverage of compact heat exchangers has been retained, the discussion that is limited to the
specific heat exchanger has been relegated to supplemental material, where it is available to
instructors who wish to cover this topic in greater depth.
The concepts of emissive power, irradiation, radiosity, and net radiative flux are now
introduced early in Chapter 12 Radiation: Processes and Properties, allowing early assignment
of end-of-chapter problems dealing with surface energy balances and properties, as
well as radiation detection. The coverage of environmental radiation has undergone substantial
revision, with the inclusion of separate discussions of solar radiation, the atmospheric
radiation balance, and terrestrial solar irradiation. Concern for the potential impact
of anthropogenic activity on the temperature of the earth is addressed and related to the
concepts of the chapter.
Much of the modification to Chapter 13 Radiation Exchange Between Surfaces emphasizes
the difference between geometrical surfaces and radiative surfaces, a key concept that
is often difficult for students to appreciate. Increased coverage of radiation exchange
between multiple blackbody surfaces, included in older editions of the text, has been
returned to Chapter 13. In doing so, radiation exchange between differentially small surfaces
is briefly introduced and used to illustrate the limitations of the analysis techniques
included in Chapter 13.
Chapter 14 Diffusion Mass Transfer was revised extensively for the previous edition,
and only modest changes have been made in this edition