Ruben Steinhoff hat ein thermodynamisches Auslegungsverfahren fur einen Versuchsstand entwickelt, welches die Grundlage fur dessen konstruktive Ausfuhrung war. Insbesondere die zeitgleiche Untersuchung von Warmeubergangskoeffizienten wahrend der Kondensation und Verdampfung von Kaltemitteln auf der Aussenseite von glatten und strukturierten Rohren zeichnen diesen Versuchsstand aus und erlauben, Messreihen zeiteffizient zu gestalten. Erste Messergebnisse nach Abschluss dieser Arbeit zeigen gute UEbereinstimmung mit den gangigen Angaben aus der Literatur.

Das Ingenieurwissen jetzt auch in Einzelbanden verfugbar. Thermodynamik enthalt die fur Ingenieure und Naturwissenschaftler wesentlichen Grundlagen in kompakter Form zum Nachschlagen bereit."

Statistical Thermodynamics: An Engineering Approach covers in a practical, readily understandable manner the underlying meaning of entropy, temperature and other thermodynamic concepts, the foundations of quantum mechanics, and the physical basis of gas, liquid and solid phase properties. It presents simply the relationship between macroscopic and microscopic thermodynamics. In addition, the molecular basis of transport phenomena and chemical kinetics are explored, as are basic concepts in spectroscopy. Modern computational tools for solving thermodynamic problems are explored, and the student is assured that he or she will gain knowledge of practical usefulness. This essential text is suitable for mechanical or aerospace engineering graduate students who have a strong background in engineering thermodynamics, those entering advanced fields such as combustion, high temperature gas dynamics, environmental sciences, or materials processing, and those who wish to build a background for understanding advanced experimental diagnostic techniques in these or similar fields.

Das vorliegende Lehrbuch ist fur Studenten des Maschinenbaus an Fachhochschulen und technischen Universitaten geschrieben. Der Stoff ist auf das fur den Maschinenbauingenieur Wesentliche abgestimmt. Besonders wertvoll ist die klare und verstandliche Darstellung. Zahlreiche Bilder, Diagramme und Beispielrechnungen helfen Lesern, die Gesetze der Thermodynamik zu verstehen und Sicherheit in ihrer Anwendung zu erlangen. Deshalb eignet sich dieses Buch auch zum Selbststudium. Die 4. Auflage ist in den Ausfuhrungen uber die Kreisprozesse und um ein Repetitorium mit Fragen, sowie Aufgaben mit ausfuhrlich durchgerechneten Loesungen erweitert.

Over the past three decades, information in the aerospace and mechanical engineering fields in general and turbomachinery in particular has grown at an exponential rate. Fluid Dynamics and Heat Transfer of Turbomachinery is the first book, in one complete volume, to bring together the modern approaches and advances in the field, providing the most up-to-date, unified treatment available on basic principles, physical aspects of the aerothermal field, analysis, performance, theory, and computation of turbomachinery flow and heat transfer.

Presenting a unified approach to turbomachinery fluid dynamics and aerothermodynamics, the book concentrates on the fluid dynamic aspects of flows and thermodynamic considerations rather than on those related to materials, structure, or mechanical aspects. It covers the latest material and all types of turbomachinery used in modern-day aircraft, automotive, marine, spacecraft, power, and industrial applications; and there is an entire chapter devoted to modern approaches on computation of turbomachinery flow. An additional chapter on turbine cooling and heat transfer is unique for a turbomachinery book.

The author has undertaken a systematic approach, through more than three hundred illustrations, in developing the knowledge base. He uses analysis and data correlation in his discussion of most recent developments in this area, drawn from over nine hundred references and from research projects carried out by various organizations in the United States and abroad.

This book is extremely useful for anyone involved in the analysis, design, and testing of turbomachinery. For students, it can be used as a two-semester course of senior undergraduate or graduate study: the first semester dealing with the basic principles and analysis of turbomachinery, the second exploring three-dimensional viscid flows, computation, and heat transfer. Many sections are quite general and applicable to other areas in fluid dynamics and heat transfer. The book can also be used as a self-study guide to those who want to acquire this knowledge.

The ordered, meticulous, and unified approach of Fluid Dynamics and Heat Transfer of Turbomachinery should make the specialization of turbomachinery in aerospace and mechanical engineering much more accessible to students and professionals alike, in universities, industry, and government.

Turbomachinery theory, performance, and analysis made accessible with a new, unified approach

For the first time in nearly three decades, here is a completely up-to-date and unified approach to turbomachinery fluid dynamics and aerothermodynamics. Combining the latest advances, methods, and approaches in the field, Fluid Dynamics and Heat Transfer of Turbomachinery features:

• The most comprehensive and complete coverage of the fluid dynamics and aerothermodynamics of turbomachinery to date
• A spotlight on the fluid dynamic aspects of flows and the thermodynamic considerations for turbomachinery (rather than the structural or material aspects)
• A detailed, step-by-step presentation of the analytical and computational models involved, which allows the reader to easily construct a flowchart from which to operate
• Critical reviews of all the existing analytical and numerical models, highlighting the advantages and drawbacks of each
• Comprehensive coverage of turbine cooling and heat transfer, a unique feature for a book on turbomachinery
• An appendix of basic computation techniques, numerous tables, and listings of common terminology, abbreviations, and nomenclature

Broad in scope, yet concise, and drawing on the author's teaching experience and research projects for government and industry, Fluid Dynamics and Heat Transfer of Turbomachinery explains and simplifies an increasingly complex field. It is an invaluable resource for undergraduate and graduate students in aerospace and mechanical engineering specializing in turbomachinery, for research and design engineers, and for all professionals who are—or wish to be—at the cutting edge of this technology.

In boiler furnace, there are four physical and chemical processes at the same time and same place, combustion, flow, heat transfer and mass transfer. Heat transfer in the furnace is not only related to the energy exchange, also related to the characteristics of efficiency and cleaning of combustion. For heat transfer in furnace, there is something specially compared to the process of heat transfer without chemical reaction. "

Theory and calculation of heat transfer in furnace" covers all the typical boilers with most of the fuels. There are two demonstrations of boiler design calculation at the end of this book. Readers can find what they are interesting both in basic theory of radiation and industry design method about boiler.
Covers all the typical boilers with most of the fuelsCombines mature technology and advance togetherEasy to read and apply. The book describes the basic theory with real design, especially those basing on the meaningful experimental data and knowledge in practice.

This book covers the new technologies on micro/nanoscale thermal characterization developed in the Micro/Nanoscale Thermal Science Laboratory led by Dr. Xinwei Wang. Five new non-contact and non-destructive technologies are introduced: optical heating and electrical sensing technique, transient electro-thermal technique, transient photo-electro-thermal technique, pulsed laser-assisted thermal relaxation technique, and steady-state electro-Raman-thermal technique. These techniques feature significantly improved ease of implementation, super signal-to-noise ratio, and have the capacity of measuring the thermal conductivity/diffusivity of various one-dimensional structures from dielectric, semiconductive, to metallic materials.

Das vorliegende Buch vermittelt die Grundlagen zur Berechnung von Kalteanlagen und Warmepumpen. Hierzu zahlen- die Bemessung von Kuhllasten, - die Auswahl von Verfahren und Kaltemitteln und- die Berechnung der erforderlichen Komponenten.Zusammenhange werden verstandlich hergeleitet und anhand eingehender Praxisbeispiele eroertert. Die Gliederung des Buches folgt einer klaren didaktischen Linie. Aus dem Abkuhlverhalten verschiedener Stoffe wird auf Kalteverfahren unterschiedlicher Komplexitat und schliesslich auf das Thema Warmeubertragung ubergeleitet. Der Schwierigkeitsgrad der basierenden thermodynamischen Konzepte wird dabei stufenweise gesteigert. Das Buch eignet sich daher auch zum Selbststudium.Die Zielgruppe dieses Buches sind Studierende der Fachrichtungen Maschinenbau, Verfahrenstechnik, Versorgungstechnik, Energietechnik und Umwelttechnik. Zudem richtet es sich an Ingenieure in den Bereichen Kalteanlagenbau, Automobilindustrie und Verfahrenstechnik sowie an Hersteller von Warmepumpen, Lebensmitteltechnik und Raumlufttechnik.

Die Aufgabensammlung zum Lehrbuch "Thermodynamik kompakt" fasst die wichtigsten Formeln zur Thermodynamik zusammen. Sie erganzt in hervorragender Weise das Lehrbuch derselben Autoren. Der Aufbau orientiert sich an der Gliederung des Lehrbuchs und enthalt Aufgaben und durchgerechnete Loesungen u.a. zu diesen Themen: Hauptsatze der Thermodynamik und deren Anwendung Stoffe und deren Beschreibung Maximale Arbeit und Exergie Technische Anwendungen, wie z.B. Kreisprozesse, Stroemungsprozesse, feuchte Luft und Chemische Reaktionen. Die einzelnen Aufgaben zu den Kapiteln werden erganzt durch vollstandige Prufungen im Anhang des Buches. Die Loesungen hierzu koennen aus dem Internet heruntergeladen werden. Die Darstellungen der ersten Auflage haben sich bewahrt. Fur die zweite Auflage wurden in mehreren Kapiteln weitere Rechenaufgaben hinzugefugt und es wurde eine weitere Klausur im Anhang erganzt. Bei verschiedenen Aufgaben wurden die Loesungen prazisiert und verschiedene Schreibfehler im Text korrigiert.

In Band 1 des zweiteiligen Grundlagenwerks zur Thermodynamik wird die Theorie systematisch entwickelt. Bilanzen und allgemein gultige Zusammenhange zwischen thermodynamischen Zustandsgroessen werden zunachst fur beliebige thermodynamische Systeme abgeleitet und danach auf eine Vielzahl von Spezialfallen angewandt. Der Band enthalt Berechnungsbeispiele mit ausfuhrlichen Loesungen sowie UEbungsaufgaben. Fur die 18. Auflage wurde das Kapitel uber Stoffeigenschaften aktualisiert und die Abschnitte zu den wichtigsten thermodynamischen Prozessen erweitert.

This book presents a highly integrated, step-by-step approach to the design and construction of low-temperature measurement apparatus. It is effectively two books in one: A textbook on cryostat design techniques and an appendix data handbook that provides materials-property data for carrying out that design. The main text encompasses a wide range of information, written for specialists, without leaving beginning students behind. After summarizing cooling methods, Part I provides core information in an accessible style on techniques for cryostat design and fabrication - including heat-transfer design, selection of materials, construction, wiring, and thermometry, accompanied by many graphs, data, and clear examples. Part II gives a practical user's perspective of sample mounting techniques and contact technology. Part III applies the information from Parts I and II to the measurement and analysis of superconductor critical currents, including in-depth measurement techniques and the latest developments in data analysis and scaling theory. The appendix is a ready reference handbook for cryostat design, encompassing seventy tables compiled from the contributions of experts and over fifty years of literature.

Explore fluid dynamics from both a theoretical and empirical perspective The engineering science of fluid dynamics is ever changing, with the very foundations of the field based on both theory and ongoing experimentation. The Dynamics and Thermodynamics of Compressible Fluid Flow thoroughly addresses all topics germane to the study of fluid dynamics. The book also further explores the mechanisms by which progress in the field has been driven by applying theoretical analysis to the design of new experiments and by interpreting experimental results within the framework of existing theoretical knowledge.

Das bew hrte Lehrbuch beginnt mit den wichtigsten empirischen Erkenntnissen zu Energie- und Stoffumwandlungen. Es erl utert die thermodynamische Analyse und das Verhalten fluider Materie, um dann die Gesetze der Massen- und Energieerhaltung sowie der Entropieproduktion zu pr sentierten. Zu Kontrollfragen und Aufgaben in jedem Kapitel sind Antworten bzw. L sungen angegeben. Neu in der 7. Auflage ist die Einf hrung in die gemeinsamen Grundgesetze der Energie- und Stoffumwandlungen und ein erster Einblick in die Energie-, Verfahrens- und Umwelttechnik.

The book provides design engineers an elemental understanding of the variables that influence pressure drop and heat transfer in plain and micro-fin tubes to thermal systems using liquid single-phase flow in different industrial applications. It also provides design engineers using gas-liquid, two-phase flow in different industrial applications the necessary fundamentals of the two-phase flow variables. The author and his colleagues were the first to determine experimentally the very important relationship between inlet geometry and transition. On the basis of their results, they developed practical and easy to use correlations for the isothermal and non-isothermal friction factor (pressure drop) and heat transfer coefficient (Nusselt number) in the transition region as well as the laminar and turbulent flow regions for different inlet configurations and fin geometry. This work presented herein provides the thermal systems design engineer the necessary design tools. The author further presents a succinct review of the flow patterns, void fraction, pressure drop and non-boiling heat transfer phenomenon and recommends some of the well scrutinized modeling techniques.

This book systematically presents the consolidated findings of the phenomenon of self-organization observed during the onset of thermoacoustic instability using approaches from dynamical systems and complex systems theory. Over the last decade, several complex dynamical states beyond limit cycle oscillations such as quasiperiodicity, frequency-locking, period-n, chaos, strange non-chaos, and intermittency have been discovered in thermoacoustic systems operated in laminar and turbulent flow regimes. During the onset of thermoacoustic instability in turbulent systems, an ordered acoustic field and large coherent vortices emerge from the background of turbulent combustion. This emergence of order from disorder in both temporal and spatiotemporal dynamics is explored in the contexts of synchronization, pattern formation, collective interaction, multifractality, and complex networks. For the past six decades, the spontaneous emergence of large amplitude, self-sustained, tonal oscillations in confined combustion systems, characterized as thermoacoustic instability, has remained one of the most challenging areas of research. The presence of such instabilities continues to hinder the development and deployment of high-performance combustion systems used in power generation and propulsion applications. Even with the advent of sophisticated measurement techniques to aid experimental investigations and vast improvements in computational power necessary to capture flow physics in high fidelity simulations, conventional reductionist approaches have not succeeded in explaining the plethora of dynamical behaviors and the associated complexities that arise in practical combustion systems. As a result, models and theories based on such approaches are limited in their application to mitigate or evade thermoacoustic instabilities, which continue to be among the biggest concerns for engine manufacturers today. This book helps to overcome these limitations by providing appropriate methodologies to deal with nonlinear thermoacoustic oscillations, and by developing control strategies that can mitigate and forewarn thermoacoustic instabilities. The book is also beneficial to scientists and engineers studying the occurrence of several other instabilities, such as flow-induced vibrations, compressor surge, aeroacoustics and aeroelastic instabilities in diverse fluid-mechanical environments, to graduate students who intend to apply dynamical systems and complex systems approach to their areas of research, and to physicists who look for experimental applications of their theoretical findings on nonlinear and complex systems.

This expanded special issue of the Journal of Thermal Spray Technology features peer-reviewed and edited contributions based on papers presented at ITSC 2010.

This unique and comprehensive introduction offers an unrivalled and in-depth understanding of the computational-based thermodynamic approach and how it can be used to guide the design of materials for robust performances, integrating basic fundamental concepts with experimental techniques and practical industrial applications, to provide readers with a thorough grounding in the subject. Topics covered range from the underlying thermodynamic principles, to the theory and methodology of thermodynamic data collecting, analysis, modeling, and verification, with details on free energy, phase equilibrium, phase diagrams, chemical reactions, and electrochemistry. In thermodynamic modelling, the authors focus on the CALPHAD method and first-principles calculations. They also provide guidance for use of YPHON, a mixed-space phonon code developed by the authors for polar materials based on the supercell approach. Including worked examples, case studies, and end-of-chapter problems, this is an essential resource for students, researchers, and practitioners in materials science.

Industrial steam tables exist to provide a standard set of properties of water and steam for manufacturers, customers, and other parties. Three desirable qualities for a set of industrial steam tables are accuracy, self-consistency, and stability. The properties must be reasonably accurate and self-consistent to support quality design of equipment. A formulation must remain the standard for many years, because the change from one standard to another is inconvenient and expensive. If the tables are represented by computer programs, those programs must be fast, since design software may call steam property routines millions of times. The ASME International Steam Tables for Industrial Use provide highly accurate and self-consistent steam properties, conforming to the constraint of representation by a fast computer program. They are based on the "Revised Release on the IAPWS Formulation 1997 for the Thermodynamic Properties of Water and Steam for Industrial Use", adopted as an international standard by the International Association for the Properties of Water and Steam. They are suitable for calculations for current and anticipated power plants and are expected to remain the standard for at least 20 years. The main update for this Third Edition is the incorporation of the new IAPWS formulation adopted in 2011 for the thermal conductivity of water and steam. This is reflected in new Tables S-9, S-10, U-9, and U-10, along with new Figures S-4, S-5, U-4, and U-5 and revision of Appendix B. The thermodynamic property information is unchanged from the Second Edition. The authors also made minor updates to some of the background text and references.

Convection in Porous Media, 4th Edition, provides a user-friendly introduction to the subject, covering a wide range of topics, such as fibrous insulation, geological strata, and catalytic reactors. The presentation is self-contained, requiring only routine mathematics and the basic elements of fluid mechanics and heat transfer. The book will be of use not only to researchers and practicing engineers as a review and reference, but also to graduate students and others entering the field. The new edition features approximately 1,750 new references and covers current research in nanofluids, cellular porous materials, strong heterogeneity, pulsating flow, and more.

Large-scale power plants and energy producers discard massive heat energy that goes unused. Energy efficiency techniques such as insulation or properly maintained heating systems are less likely when it requires high investments. While "conservation" generally refers to the reduction of total energy usage, "efficiency" means increasing the yield per unit of energy. In many cases, the energy needed to heat water or refrigerate products can also be reduced through conservation and application of more efficient technologies. Heat pump water heaters use electricity to "move" heat from one place to another instead of generating heat directly. Therefore, they can be two to three times more energy-efficient than conventional electric resistance water heaters. This book examines the full application of energy-efficient water-heating systems, focused on heat pump devices. The main objective is to present a brief introduction of the working principles of this equipment, and concentrate on descriptions and applications where both "purposes" of the system are used, the heating and the cooling components, maximising its effectiveness.

Many structures operate at elevated temperatures where creep and rupture are a design consideration, such as refinery and chemical plant equipment, components in power-generation units, and engine parts. At higher temperatures the material tends to undergo gradual increase in dimensions with time, which could eventually lead to rupture. Thus, the design of such components must take into consideration the creep and rupture of the material. In this book, a brief introduction to the general principles of design at elevated temperatures is given with extensive references cited for further in-depth understanding of the subject. A key feature of the proposed book is the use of examples to illustrate the practical application of the design and analysis methods presented. This book is suitable for practicing design engineers in the power and process industries, particularly those in involved with pressure equipment, nuclear structures, petrochemical equipment, and their supervisors.

Finite-time thermodynamics (FTT) is one of the newest and most challenging areas in thermodynamics. The objective of this book is to provide results from research, which continues at an impressive rate. The authors make a concentrated effort to reach out and encourage academic and industrial participation in this book and to select papers that are relevant to current problems and practice. The numerous contributions from the international community are indicative of the continuing global interest in finite-time thermodynamics. All represent the newest developments in their respective areas.

Nanofluids are gaining the attention of scientists and researchers around the world. This new category of heat transfer medium improves the thermal conductivity of fluid by suspending small solid particles within it and offers the possibility of increased heat transfer in a variety of applications. Bringing together expert contributions from across the globe, Heat Transfer Enhancement with Nanofluids presents a complete understanding of the application of nanofluids in a range of fields and explains the main techniques used in the analysis of nanofuids flow and heat transfer. Providing a rigorous framework to help readers develop devices employing nanofluids, the book addresses basic topics that include the analysis and measurements of thermophysical properties, convection, and heat exchanger performance. It explores the issues of convective instabilities, nanofluids in porous media, and entropy generation in nanofluids. The book also contains the latest advancements, innovations, methodologies, and research on the subject. Presented in 16 chapters, the text: Discusses the possible mechanisms of thermal conduction enhancement Reviews the results of a theoretical analysis determining the anomalous enhancement of heat transfer in nanofluid flow Assesses different approaches modeling the thermal conductivity enhancement of nanofluids Focuses on experimental methodologies used to determine the thermophysical properties of nanofluids Analyzes forced convection heat transfer in nanofluids in both laminar and turbulent convection Highlights the application of nanofluids in heat exchangers and microchannels Discusses the utilization of nanofluids in porous media Introduces the boiling of nanofluids Treats pool and flow boiling by analyzing the effect of nanoparticles on these complex phenomena Indicates future research directions to further develop this area of knowledge, and more Intended as a reference for researchers and engineers working in the field, Heat Transfer Enhancement with Nanofluids presents advanced topics that detail the strengths, weaknesses, and potential future developments in nanofluids heat transfer.