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Books > Professional & Technical > Energy technology & engineering > Heat transfer processes
This book presents the theory of periodic conjugate heat transfer in a detailed way. The effects of thermophysical properties and geometry of a solid body on the commonly used and experimentally determined heat transfer coefficient are analytically presented from a general point of view. The main objective of the book is a simplified description of the interaction between a solid body and a fluid as a boundary value problem of the heat conduction equation for the solid body. At the body surface, the true heat transfer coefficient is composed of two parts: the true mean value resulting from the solution of the steady state heat transfer problem and a periodically variable part, the periodic time and length to describe the oscillatory hydrodynamic effects. The second edition is extended by (i) the analysis of stability boundaries in helium flow at supercritical conditions in a heated channel with respect to the interaction between a solid body and a fluid; (ii) a periodic model and a method of heat transfer simulation in a fluid at supercritical pressure and (iii) a periodic quantum-mechanical model for homogeneous vapor nucleation in a fluid with respect to nanoscale effects.
"Heat Transfer: Lessons with Examples Solved by Matlab instructs students in heat transfer, and cultivates independent and logical thinking ability. The book focuses on fundamental concepts in heat transfer and can be used in courses in Heat Transfer, Heat and Mass Transfer, and Transport Processes. It uses numerical examples and equation solving to clarify complex, abstract concepts such as Kirchhoff's Law in Radiation. Several features characterize this textbook: It includes real-world examples encountered in daily life; Examples are mostly solved in simple Matlab codes, readily for students to run numerical experiments by cutting and pasting Matlab codes into their PCs; In parallel to Matlab codes, some examples are solved at only a few nodes, allowing students to understand the physics qualitatively without running Matlab codes; It places emphasis on ""why"" for engineers, not just ""how"" for technicians. Adopting instructors will receive supplemental exercise problems, as well as access to a companion website where instructors and students can participate in discussion forums amongst themselves and with the author. Heat Transfer is an ideal text for students of mechanical, chemical, and aerospace engineering. It can also be used in programs for civil and electrical engineering, and physics. Rather than simply training students to be technicians, Heat Transfer uses clear examples, structured exercises and application activities that train students to be engineers. The book encourages independent and logical thinking, and gives students the skills needed to master complex, technical subject matter. " " Tien-Mo Shih received his Ph.D. from the University of California, Berkeley, and did his post-doctoral work at Harvard University. From 1978 until his retirement in 2011 he was an Associate Professor of Mechanical Engineering at the University of Maryland, College Park, where he taught courses in thermo-sciences and numerical methods. He remains active in research in these same areas. His book, Numerical Heat Transfer, was translated into Russian and Chinese, and subsequently published by both the Russian Academy of Sciences and the Chinese Academy of Sciences. He has published numerous research papers, and has been invited regularly to write survey papers for Numerical Heat Transfer Journal since 1980s."
This book provides a profound understanding, which physical processes and mechanisms cause the heat transfer in composite and cellular materials. It shows models for all important classes of composite materials and introduces into the latest advances. In three parts, the book covers Composite Materials (Part A), Porous and Cellular Materials (Part B) and the appearance of a conjoint solid phase and fluid aggregate (Part C).
"Phase Change Materials: Science and Applications" provides a unique introduction of this rapidly developing field. Clearly written and well-structured, this volume describes the material science of these fascinating materials from a theoretical and experimental perspective. Readers will find an in-depth description of their existing and potential applications in optical and solid state storage devices as well as reconfigurable logic applications. Researchers, graduate students and scientists with an interest in this field will find "Phase Change Materials" to be a valuable reference.
"Advances in Heat Transfer" fills the information gap between
regularly scheduled journals and university-level textbooks by
providing in-depth review articles over a broader scope than in
journals or texts. The articles, which serve as a broad review for
experts in the field, will also be of great interest to
non-specialists who need to keep up-to-date with the results of the
latest research.This serialis essential reading for all mechanical,
chemical and industrial engineers working in the field of heat
transfer, graduate schools or industry.
The book provides an easy way to understand the fundamentals of heat transfer. The reader will acquire the ability to design and analyze heat exchangers. Without extensive derivation of the fundamentals, the latest correlations for heat transfer coefficients and their application are discussed. The following topics are presented - Steady state and transient heat conduction - Free and forced convection - Finned surfaces - Condensation and boiling - Radiation - Heat exchanger design - Problem-solving After introducing the basic terminology, the reader is made familiar with the different mechanisms of heat transfer. Their practical application is demonstrated in examples, which are available in the Internet as MathCad files for further use. Tables of material properties and formulas for their use in programs are included in the appendix. This book will serve as a valuable resource for both students and engineers in the industry. The author's experience indicates that students, after 40 lectures and exercisesof 45 minutesbasedon this textbook, have proved capable of designing independently complex heat exchangers such as for cooling of rocket propulsion chambers, condensers and evaporators for heat pumps."
This book presents concepts, ideas and methods in convective heat transfer in easily understandable form. The book starts the reader from the fundamentals and progresses to the application of these to practical engineering problems and to interface with modern research, new ideas, products and processes.
Heat transfer laws for conduction, radiation and convection change when the dimensions of the systems in question shrink. The altered behaviours can be used efficiently in energy conversion, respectively bio- and high-performance materials to control microelectronic devices. To understand and model those thermal mechanisms, specific metrologies have to be established. This book provides an overview of actual devices and materials involving micro-nanoscale heat transfer mechanisms. These are clearly explained and exemplified by a large spectrum of relevant physical models, while the most advanced nanoscale thermal metrologies are presented.
This book is a generalist textbook; it is designed for anybody interested in heat transmission, including scholars, designers and students. Two criteria constitute the foundation of Annaratone s books, including the present one. The first one consists of indispensable scientific rigor without theoretical exasperation. The inclusion in the book of some theoretical studies, even if admirable for their scientific rigor, would have strengthened the scientific foundation of this publication, yet without providing the reader with further applicable know-how. The second criterion is to deliver practical solution to operational problems. This criterion is fulfilled through equations based on scientific rigor, as well as a series of approximated equations, leading to convenient and practically acceptable solutions, and through diagrams and tables. When a practical case is close to a well defined theoretical solution, corrective factors are shown to offer simple and correct solutions to the problem.
The subject of the book is uid dynamics and heat transfer in micro-channels. This problem is important for understanding the complex phenomena associated with single- and two-phase ows in heated micro-channels. The challenge posed by high heat uxes in electronic chips makes thermal management a key factor in the development of these systems. Cooling of mic- electronic components by new cooling technologies, as well as improvement of the existing ones, is becoming a necessity as the power dissipation levels of integrated circuits increases and their sizes decrease. Miniature heat sinks with liquid ows in silicon wafers could signi cantly improve the performance and reliability of se- conductor devices. The improvements are made by increasing the effective thermal conductivity, by reducing the temperature gradient across the wafer, by reducing the maximum wafer temperature, and also by reducing the number and intensity of localized hot spots. A possible way to enhance heat transfer in systems with high power density is to change the phase in the micro-channels embedded in the device. This has motivated a number of theoretical and experimental investigations covering various aspects of heat transfer in micro-channel heat sinks with phase change. The ow and heat transfer in heated micro-channels are accompanied by a n- ber of thermohydrodynamic processes, such as liquid heating and vaporization, bo- ing, formation of two-phase mixtures with a very complicated inner structure, etc., which affect signi cantly the hydrodynamic and thermal characteristics of the co- ing systems.
Many phenomena in social, natural and engineering fields are governed by wave, potential, parabolic heat-conduction, hyperbolic heat-conduction and dual-phase-lagging heat-conduction equations. This monograph examines these equations: their solution structures, methods of finding their solutions under various supplementary conditions, as well as the physical implication and applications of their solutions.
In this book, the fundamentals of chemical engineering are presented aiming to applications in micro system technology, microfluidics, and transport processes within microstructures. After a general overview on both disciplines and common areas, recent projects are shortly presented. The combination of different disciplines gives new opportunities in microfluidic devices and process intensification, respectively. Special features of the book are the state of the art in micro process engineering, a detailed treatment of transport phenomena for engineers, a design methodology from transport effects to economic considerations, a detailed treatment of chemical reaction in continuous flow microstructured reactors, an engineering methodology to treat complex processes. The book addresses researchers and graduate students in the field of chemical engineering, Microsystems engineering, and chemistry.
Heat exchangers with minichannel and microchannel flow passages are
becoming increasingly popular because of their ability to remove
large heat fluxes under single-phase and two-phase applications.
This book serves as a sourcebook for those individuals involved in
the design processes of microchannel flow passages in a heat
exchanger.
CLIFFORD K. HOAND STEPHEN W. WEBB Sandia National Laboratories, P. O. Box 5800, Albuquerque, NM 87185, USA Gas and vapor transport in porous media occur in a number of important applications includingdryingofindustrialandfoodproducts,oilandgasexploration,environm- tal remediation of contaminated sites, and carbon sequestration. Understanding the fundamental mechanisms and processes of gas and vapor transport in porous media allows models to be used to evaluate and optimize the performance and design of these systems. In this book, gas and vapor are distinguished by their available states at stan- ? dard temperature and pressure (20 C, 101 kPa). If the gas-phase constituent can also exist as a liquid phase at standard temperature and pressure (e. g. , water, ethanol, toluene, trichlorothylene), it is considered a vapor. If the gas-phase constituent is non-condensable at standard temperature and pressure (e. g. , oxygen, carbon di- ide, helium, hydrogen, propane), it is considered a gas. The distinction is important because different processes affect the transport and behavior of gases and vapors in porous media. For example, mechanisms specific to vapors include vapor-pressure lowering and enhanced vapor diffusion, which are caused by the presence of a g- phase constituent interacting with its liquid phase in an unsaturated porous media. In addition, the "heat-pipe" exploits isothermal latent heat exchange during evaporation and condensation to effectively transfer heat in designed and natural systems.
Heat Transfer topics are commonly of a very complex nature. Often different mechanisms like heat conduction, convection, thermal radiation, and non-linear phenomena, such as temperature-dependent thermophysical properties, and phase changes occur simultaneously. New developments in numerical solution methods of partial differential equations and access to high-speed, efficient and cheap computers have led to dramatic advances during recent years. This book contains the edited versions of the papers presented at the Ninth International Conference on Advanced Computational Methods and Experimental Measurements in Heat Transfer and Mass Transfer. The objective of this conference series is to provide a forum for presentation and discussion of advanced topics, new approaches and application of advanced computational methods and experimental measurements to heat and mass transfer problems. The selected sections show the wide range of applied and fundamental problems in the heat and mass transfer field.Papers encompass a number of topics such as: natural and forced convection; advances in computational methods; heat and mass transfer; modelling and experiments; heat exchangers and equipment; energy systems; micro and nano scale heat and mass transfer.
The discontinuous finite element method (also known as the discontinuous Galerkin method) embodies the advantages of both finite element and finite difference methods. It can be used in convection-dominant applications while maintaining geometric flexibility and higher local approximations throught the use of higher-order elements. Element-by element connection propagates the effect of boundary conditions and the local formulation obviates the need for global matrix assembly. All of this adds up to a method which is not unduly memory-intensive and uniquely useful for working with computational dynamics, heat transfer and fluid flow calculations. Discontinuous Finite Elements in Fluid Dynamics and Heat Transfer offers its readers a systematic and practical introduction to the discontinuous finite element method. It moves from a brief review of the fundamental laws and equations governing thermal and fluid systems, through a discussion of different approaches to the formulation of discontinuous finite element solutions for boundary and initial value problems, to their applicaton in a variety of thermal-system and fluid-related problems, including:
Mesh generation and adaptivity, parellelization algorithms and a priori and a posteriori error analysis are also introduced andexplained, rounding out a comprehensive review of the subject. Each chapter features worked examples and exercises illustrating situations ranging from simple benchmarks to practical engineering questions. This textbook is written to form the foundations of senior undergraduate and graduate learning and also provides scientists, applied mathematicians and research engineers with a thorough treatment of basic concepts, specific techniques and methods for the use of discontinuous Galerkin methods in computational fluid dynamics and heat transfer applications.
* Provides an overview of review articles on topics of current interest
Advances in Heat Transfer fills the information gap between
regularly scheduled journals and university level textbooks by
providing in-depth review articles over a broader scope than in
journals or texts. The articles, which serve as a broad review for
experts in the field, will also be of great interest to
non-specialists who need to keep up to date with the results of the
latest research. It is essential reading for all mechanical,
chemical and industrial engineers working in the field of heat
transfer, graduate schools or industry.
The papers featured are divided under the following headings: Conduction, Including Nonlinear Problems; Natural and Forced Convection; Heat and Mass Transfer; Casting, Welding, Forging and Other Processes; Heat Exchangers; Atmospheric Studies; Advances in Computational Methods; Modelling and Experiments; Micro and Nanoscale Heat Transfer; and Case Studies.
As the field of Microsystems expands into more disciplines and new
applications such as RF-MEMS, Optical MEMS and Bio-MEMS, thermal
management is becoming a critical issue in the operation of many
microdevices, including microelectronic chips.
This book provides a compilation of important optical techniques applied to experiments in heat and mass transfer, multiphase flow and combustion. The emphasis of this book is on the application of these techniques to various engineering problems. The contributions are aiming to provide practicing engineers, both in industry and research, with the recent state-of-science in the application of advanced optical measurements. The book is written by selected specialists representing leading experts in this field who present new information for the possibilities of these techniques and give stimulation of new ideas for their application.
This book consists of peer-reviewed articles and reviews presented as lectures at the Sixth International Symposium on Thermal Engineering and Sciences for Cold Regions in Darmstadt, Germany. It addresses all relevant aspects of thermal physics and engineering in cold regions, such as the Arctic regions. These environments present many unique freezing and melting phenomena and the relevant heat and mass transfer processes are of basic importance with respect to both the technological applications and the natural context in which they occur. Intended for physicists, engineers, geoscientists, climatologists and cryologists alike, these proceedings cover topics such as: ice formation and decay, heat conduction with phase change, convection with freezing and melting, thermal properties at low temperature, frost heave and permafrost, climate impact in cold regions, thermal design of structures, bio-engineering in cold regions, and many more.
The volume presents an overview of current developments in the thermal management of electronic systems. This has been seen as an increasingly important factor in current design methodology. The topics covered include thermal management in general, analytical and computational thermal modelling, thermal characterization of components, single and multiphase convective cooling, measurement techniques, thermomechanical modelling and thermally induced failure. Audience: Research and development engineers and scientists whose work involves the design and manufacture of electronic systems.
This book represents the systematic coverage of mass and energy
balancing in the process industries. The classical treatment of
balances in the available literature is complemented in the
following areas: The major areas addressed are: The book is directed to chemical engineers, plant designers, technologists, information technology managers, control engineers and instrumentation engineers in process industries. Major areas of applications are process industries and energy production, such as oil refining, natural gas processing, petrochemistry, chemical industries, mineral processing and utility production and distribution systems. University students and teachers of chemical engineering and control will also find the book invaluable.
This unique book, the first published on the subject, provides an
introduction to the theory of macrotransport processes, a
comprehensive effective-medium theory of transport phenomena in
heterogeneous systems. The text begins with a relatively simple
approach to the basic theory before turning to a more formal
theoretical treatment which is extended in scope in each successive
chapter. |
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