Thermodynamics: An Engineering Approach

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In the new Chapter 9 on exergy, we eliminated the use of the symbols Φ and ψ for the specific exergies of stationary masses and flowing fluids, and replaced them with xnonflow and xflow, respectively. This change ensures consistent use of the symbols x, X, and X for the specific, total, and time rate of exergy, in parallel to their counterparts e, E, and Ė for energy and s, S, and S for entropy. Also, we have enhanced the chapter with cryogenic applications to attract attention to the tremendous work potential of substances at low temperatures, such as LNG at about −160ºC. Further, we did away with the occasional use of the traditional sign convention by replacing the expression Q – W for the net energy transfer by the heat and work in the energy balance relations by Qnet, in + Wnet, in, with the remark that a negative quantity for the net heat or work term represents output instead of input. Recent information dealing with new developments in thermodynamic systems, such as the new generation of gas turbines with remarkable efficiencies, is incorporated throughout the text.

Thermodynamics: An Engineering Approach 10e

In the new Chapter 7, the coverage of Relative Pressure Pr and Relative Specific Volume vr used for isentropic processes of ideal gases, as well as their corresponding columns in the air tables in the Appendices (Tables A-17 and A-17E), are removed. Instead, a more versatile new entropy function s+ is defined for the first time and its values are listed in the air tables. The s+ function makes it possible to calculate the entropy change of ideal gases with variable specific heats when specific volume information is given instead of the pressure information. The existing so function together with the new s+ function allows us to do everything we could do with the functions Pr and vr, plus more. In Chap. 3, a new section "Refrigeration and Freezing of Foods" is added to show the relevance of thermodynamics to everyday life. Also, the first-law relation is redeveloped using an intuitive approach. Available at most college bookstores, or for a complete list of titles and prices, write to: +Schaum DivisionFinally, we would like to express our appreciation to our wives Zehra and Sylvia and our children for their continued patience, understanding, encouragement, and support throughout this project. We would like to take this opportunity to thank the many users of the first two editions at more than l50 colleges and universities in the United States and Canada and many others in several countries overseas for their comments, praises, and constructive criticism. Special thanks are due to faculty who reviewed the third edition with a critical eye and made valuable suggestions for improvements: In Chap. 2, a new section, "Vapor Pressure and Phase Equilibrium" is added to expose students to the dynamics of phase-change processes and mass transfer. Also, Sec. 2-3 is expanded with discussions on some interesting consequences of the saturation temperature–pressure dependence. In Chap. 5, two new sections, "Energy Conversion Efficiencies" and "Household Refrigerators," are added. In the former section, combustion efficiency, motor efficiency, lighting efficiency, overall efficiency, and the heating values of fuels are presented. In the latter section, several ways of conserving energy while using a refrigerator are discussed. Each chapter contains numerous worked-out examples that clarify the material and illustrate the use of the basic principles. A consistent and systematic approach is used in the solution of the example problems, with particular attention to the proper use of units. A sketch and a process diagram are included for most examples to clearly illustrate the geometry and the type of process involved.

Thermodynamics : An Engineering Approach - Google Books

The Instructor’s Resource CD that is available to adopters contains PowerPoint presentation of key figures in the text and lecture outlines as well as the complete solutions manual, the EES problems disk, and the tables and charts from the appendix. EES programs, discussed below, have been developed to solve many of the example problems in the book and they are included on the accompanying Problems Disk. The EES problems developed for this book are denoted in the text with a disk symbol _. The Load Textbook command in EES will generate a separate menu for these programs so that they can easily be accessed. Each program provides detailed comments and on-line help. These programs should help the student master the important concepts without the calculational burden that has been previously required. The text is also available without the disk for those who do not wish to incorporate the software in the course. The menu-driven software that accompanied the second edition is available to adopters who prefer to continue to use it. In Chap. 8, the discussions on gas turbine efficiency are expanded to incorporate recent developments. The material is introduced at a level that average students can follow comfortably. It speaks to the students, not over them. In fact, the material is self-instructive, thus freeing the instructor to use class time more productively.Dr Kanoğlu has taught at the University of Nevada, Reno; Ontario Tech University; American University of Sharjah; and the University of Gaziantep. He is the co-author of the books Fundamentals and Applications of Renewable Energy (1st ed., 2020) and Energy Efficiency and Management for Engineers (1st ed., 2020), both published by McGraw-Hill. Dr Boles specializes in heat transfer and has been involved in the analytical and numerical solution of phase change and drying of porous media. He is a member of the American Society of Mechanical Engineers (ASME), the American Society for Engineering Education (ASEE), and Sigma Xi. Dr Boles received the ASEE Meriam/Wiley Distinguished Author Award in 1992 for excellence in authorship. Recent new definitions of kilogram, mole, ampere, and kelvin in the 26th General Conference on Weights and Measures in 2018 are incorporated in Chaps. 1 and 2. The lengthy “Chapter 7 Entropy,” in the 9th edition is split into two chapters: “Chapter 7 Entropy,” which covers the fundamentals of entropy, and “Chapter 8 Entropy Analysis,” which covers the engineering application of entropy as well as the entropy balance. The new organization should provide instructors more flexibility for selective coverage of the subject matter. Thermodynamics: An Engineering Approach is also available with Smartbook through the Connect platform. Our philosophy that contributed to the popularity of the first two editions remains unchanged: talk directly to the minds of tomorrow’s engineers in a simple, yet precise manner and encourage creative thinking and development of a deeper understanding of the subject matter. Our goal in this undertaking was to offer an engineering textbook that is read by the students with interest and enthusiasm instead of one that is used as a reference book to solve problems. We wanted to touch the curious minds and take them to a pleasant journey in the wonderful world of thermodynamics where they could explore the wonders of this exciting science. The enthusiastic response we received from the users of the earlier editions from small colleges to large universities indicates that our objectives have been achieved.

Thermodynamics : An Engineering Approach - Google Books Thermodynamics : An Engineering Approach - Google Books

We are gratified by the enthusiastic response this book has received, and we hope that the improvements made in the new edition will make it even more appealing. Your comments and criticisms are always welcome and will be greatly appreciated. All the popular features of the previous editions are retained while new ones are added. With the exception of major revisions of Chapters 6 and 7 and the addition of some new sections in other chapters, the main body of the text remains largely unchanged. The most significant changes in this edition are highlighted below. Alternatively, our dedicated Academic Consultants, Digital Success and Customer Support teams are there to help you discover the right solution for your needs. We can create a bespoke offering that will allow you to achieve the institutional and commercial objectives of your learning & teaching programme. Mehmet Kanoğlu is Professor of Mechanical Engineering at Alanya Alaaddin Keykubat University. He received his B.S. in mechanical engineering from Istanbul Technical University and his M.S. and PhD in mechanical engineering from the University of Nevada, Reno. His research areas include energy efficiency, energy storage, refrigeration systems, gas liquefaction, hydrogen production and liquefaction, renewable energy systems, geothermal energy, and cogeneration. He is the author or coauthor of numerous journal and conference papers.

Yunus A. Çengel is Professor Emeritus of Mechanical Engineering at the University of Nevada, Reno. He received his B.S. in mechanical engineering from Istanbul Technical University and his M.S. and PhD in mechanical engineering from North Carolina State University. His areas of interest are renewable energy, energy efficiency, energy policies, heat transfer enhancement, and engineering education. He served as the Industrial Assessment Center (IAC) director at the University of Nevada, Reno, from 1996 to 2000. He has led teams of engineering students to numerous manufacturing facilities in Northern Nevada and California to perform industrial assessments. He has prepared energy conservation, waste minimization, and productivity enhancement reports for them. He has also served as an advisor for various government organizations and corporations. Connect is an online platform integrating ready-made course content with assessments and tools. The platform uses the most established adaptive digital technology to enhance teaching and learning, freeing up instructors to focus their own time and effort where it will have the most impact. Some new examples and numerous new problems are added, including some extensive design problems. Many real-world problems dealing with thermoeconomics and the dollar value of various energy conservation measures are incorporated into various chapters to help students develop an understanding of the monetary value of energy. Some new problems deal with the environmental impact of energy conversion and energy conservation, and the emission of pollutants and greenhouse gases into the atmosphere.