3rd Edition

# Engineering Heat Transfer

By William S. Janna Copyright 2009
692 Pages 372 B/W Illustrations
by CRC Press

692 Pages 372 B/W Illustrations
by CRC Press

Also available as eBook on:

Most heat transfer texts include the same material: conduction, convection, and radiation. How the material is presented, how well the author writes the explanatory and descriptive material, and the number and quality of practice problems is what makes the difference. Even more important, however, is how students receive the text. Engineering Heat Transfer, Third Edition provides a solid foundation in the principles of heat transfer, while strongly emphasizing practical applications and keeping mathematics to a minimum.
New in the Third Edition:

• Coverage of the emerging areas of microscale, nanoscale, and biomedical heat transfer
• Simplification of derivations of Navier Stokes in fluid mechanics
• Moved boundary flow layer problems to the flow past immersed bodies chapter
• Revised and additional problems, revised and new examples
• PDF files of the Solutions Manual available on a chapter-by-chapter basis

The text covers practical applications in a way that de-emphasizes mathematical techniques, but preserves physical interpretation of heat transfer fundamentals and modeling of heat transfer phenomena. For example, in the analysis of fins, actual finned cylinders were cut apart, fin dimensions were measures, and presented for analysis in example problems and in practice problems. The chapter introducing convection heat transfer describes and presents the traditional coffee pot problem practice problems. The chapter on convection heat transfer in a closed conduit gives equations to model the flow inside an internally finned duct. The end-of-chapter problems proceed from short and simple confidence builders to difficult and lengthy problems that exercise hard core problems solving ability.
Now in its third edition, this text continues to fulfill the author’s original goal: to write a readable, user-friendly text that provides practical examples without overwhelming the student. Using drawings, sketches, and graphs, this textbook does just that.
PDF files of the Solutions Manual are available upon qualifying course adoptions.

Fundamental Concepts

Mechanisms of Heat Transfer

Dimensions and Units

Fourier’s Law of Heat Conduction

Thermal Conductivity

Convection Heat Transfer

Convection Heat-Transfer Coefficient

Combined Heat-Transfer Mechanisms

One-Dimensional Conduction Equation

Plane Geometry Systems

Polar Cylindrical Geometry Systems

Spherical Geometry Systems

Thermal Contact Resistance

Heat Transfer from Extended Surfaces

General Conduction Equation

Analytical Method of Solution

Graphical Method of Solution

Conduction Shape Factor

Solution by Numerical Methods (Finite Differences)

Numerical Method of Solution for Two-Dimensional Problems

Methods of Solving Simultaneous Equations

Systems with Negligible Internal Resistance

Systems with Finite Internal and Surface Resistances

Solutions to Multidimensional Geometry Systems

Approximate Methods of Solution to Transient-Conduction Problems

Introduction to Convection

Fluid Properties

Characteristics of Fluid Flow

Equations of Fluid Mechanics

Thermal-Energy Equation

Applications to Laminar Flows

Applications to Turbulent Flows

Natural-Convection Problem

Dimensional Analysis

Convection Heat Transfer in a Closed Conduit

Heat Transfer to and from Laminar Flow in Circular Conduit

Heat Transfer to and from Turbulent Flow in Circular Conduit

Heat-Transfer Correlations for Flow in Noncircular Ducts

Convection Heat Transfer in Flows Past Immersed Bodies

Boundary-Layer Flow

Turbulent Flow over Flat Plate

Flow Past Various Two-Dimensional Bodies

Flow Past a Bank of Tubes

Flow Past a Sphere

Natural-Convection Systems

Natural Convection on a Vertical Surface: Laminar Flow

Natural Convection on a Vertical Surface: Transition and Turbulence

Natural Convection on an Inclined Flat Plate

Natural Convection on a Horizontal Flat Surface

Natural Convection on Cylinders

Natural Convection around Spheres and Blocks

Natural Convection about an Array of Fins

Combined Forced- and Natural-Convection Systems

Heat Exchangers

Double-Pipe Heat Exchangers

Shell-and-Tube Heat Exchangers

Effectiveness–Number of Transfer Units Method of Analysis

Crossflow Heat Exchangers

Efficiency of a Heat Exchanger

Condensation and Vaporization Heat Transfer

Condensation Heat Transfer

Boiling Heat Transfer

Emission and Absorption at the Surface of an Opaque Solid

Characteristics of Real Surfaces

View Factor

Methods for Evaluating View Factors

Radiation Heat Transfer within Enclosure of Black Surfaces

Radiation Heat Transfer within an Enclosure of Diff use-Gray Surfaces

Bibliography and Selected References

Appendices

Index

### Biography

Dr. William S. Janna received a BSME degree, an MSME, and a PhD from the University of Toledo. He joined the mechanical engineering faculty at Th e University of New Orleans in 1976, where he became department chair, and served in that position for 4 years. Subsequently, he joined Th e University of Memphis in 1987 as chair of the Department of Mechanical Engineering. Dr. Janna served as associate dean for graduate studies and research in the Herff College of Engineering. His research interests include boundary layer methods of solution for various engineering problems, modeling the melting of ice objects of various shapes, and the study of sublimation from various geometries. Dr. Janna is the author of three textbooks, and a member of the American Society of Mechanical Engineers (ASME). He teaches courses in heat transfer, fluid mechanics, and design of fl uid/thermal systems. He has designed and constructed a number of experiments in fluid mechanics and heat transfer laboratories..