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Books > Professional & Technical > Mechanical engineering & materials > Mechanical engineering > Engines & power transmission
Everything important, up-to-date and practical about turbopumps can be found in this book. The material is arranged to cover the most important topics, from basic theories to practical applications. This book can also serve as a useful textbook for students who are taking courses in the area of turbopumps and hydraulic machineries. It is the complete reference book for turbopumps.
Das Buch stellt die Entwicklung und Erprobung umweltvertraglicher Schmierstoffe und kohlenstoffbasierter Beschichtungen vor. Am Beispiel einer Werkzeugmaschine untersucht der Autor die tribologischen Systeme, also die Systeme, in denen Reibung und Verschleiss massgeblich auftreten. Die Erkenntnisse werden in Form von Prozessketten verknupft und die Neuentwicklungen unter realitatsnahen Bedingungen gepruft. Das Projekt wurde durch die Deutsche Forschungsgemeinschaft gefordert und erforscht neben den Grundlagen auch die industrielle Umsetzung."
Reflecting the developments in gas turbine combustion technology that have occurred in the last decade, Gas Turbine Combustion: Alternative Fuels and Emissions, Third Edition provides an up-to-date design manual and research reference on the design, manufacture, and operation of gas turbine combustors in applications ranging from aeronautical to power generation. Essentially self-contained, the book only requires a moderate amount of prior knowledge of physics and chemistry. In response to the fluctuating cost and environmental effects of petroleum fuel, this third edition includes a new chapter on alternative fuels. This chapter presents the physical and chemical properties of conventional (petroleum-based) liquid and gaseous fuels for gas turbines; reviews the properties of alternative (synthetic) fuels and conventional-alternative fuel blends; and describes the influence of these different fuels and their blends on combustor performance, design, and emissions. It also discusses the special requirements of aircraft fuels and the problems encountered with fuels for industrial gas turbines. In the updated chapter on emissions, the authors highlight the quest for higher fuel efficiency and reducing carbon dioxide emissions as well as the regulations involved. Continuing to offer detailed coverage of multifuel capabilities, flame flashback, high off-design combustion efficiency, and liner failure studies, this best-selling book is the premier guide to gas turbine combustion technology. This edition retains the style that made its predecessors so popular while updating the material to reflect the technology of the twenty-first century.
Boiler professionals require a strong command of both the theoretical and practical facets of water tube-boiler technology. From state-of-the-art boiler construction to mechanics of firing techniques, Boilers for Power and Process augments seasoned engineers' already-solid grasp of boiler fundamentals. A practical explanation of theory, it delivers a balanced analysis of the conceptual and functional aspects of boiler design and evolution. Project managers, consultants, and graduate students will also benefit from this handy desk book, which: - Describes boiler theory - Elaborates on the parts and sub-assemblies of the boiler and its essential auxiliaries - Explains firing systems, including FBC and HRSG Insights from a Professional with Decades of Experience Take advantage of the author's rare techno-commercial perspective and decades of hands-on international experience with industrial and utility boiler systems. Boilers for Power and Process builds on fundamentals - heat transfer, fluid flow, combustion, and fuels - using hundreds of illustrations and tables, a glossary of key terms, and appendices outlining essential calculations required for common processes. Ruthless Optimization Leads to Evolution Examining the latest breakthroughs in boiler technology, this reference details the evolution and what the author calls "ruthless" optimization of firing systems and boilers in the last 150 years. It explains why only the most fuel-flexible, dynamically responsive, best-constructed boilers are used today. This company-neutral text discusses competing designs and why different systems are particularly useful and cost-effective for certain business sectors and global regions. Succinct and easy to navigate, this text illustrates the practical business value and applications of different boilers, distilling the essential information, creating a must-have reference for an intimate understanding of boiler technology.
This book gives a comprehensive account of the principles and practical methods applicable to transient temperature measurements in engineering and science. Transient temperatures are taken to be in the range from about 200K to 6000K and with timescales from tenths of nanoseconds to tens of seconds. Within these limits is a very large field of combustion and gas dynamics and these are the principle areas which are addressed. Several new experimental and theoretical techniques are introduced and various modes of thermal failure are described. The chapters move from undergraduate material to the latest methods and are designed to be of use to the widest possible range of engineers, scientists, and students working in universities or in chemical or mechanical engineering. Many applications are described. This book is intended for engineers and scientists concerned with measurement of transient temperatures (rapidly changing heating conditions). Mechanical and chemical engineers experimental physicists chemists.
This book presents new research results in the field of gravity compensation in robotic systems. It explores topics such as gravity compensation of planar articulated robotic manipulators; the stiffness modeling of manipulators with gravity compensators; the multi-degree-of-freedom counter-balancing; the design of actuators with partial gravity compensation; a cable-driven robotic suit with gravity compensation for load carriage; various compensation systems for medical cobots and assistive devices; gravity balancing of parallel robots. The volume demonstrates that gravity compensation methods continue to develop, and new approaches and solutions are constantly being reported. These solutions apply both to new structural solutions and to their new applications. Cobots, exoskeletons and robotic suits, assistive devices, as well as biomechanical systems are among the most promising applications and most pressing areas for further innovation.
Das Buch liefert eine luckenlose, anschauliche und theoretisch fundierte Darstellung der Wirkungsweise von Radaufhangungen. Konstrukteure, Versuchsingenieure und Berechnungsingenieure finden darin das notwendige Rustzeug zur kinematisch und elasto-kinematisch einwandfreien Entwicklung. Am Anfang stehen Uberlegungen zur Systematik der Radaufhangungen sowie zur kinematischen Analyse, ein Uberblick uber die wichtigsten Reifeneigenschaften und eine Betrachtung sowohl der Federungs- und Dampfungssysteme als auch der Elemente des Antriebsstranges (Gelenkwellen und Vorgelegegetriebe) in ihrem Zusammenspiel mit der Radaufhangung. Mit diesen Grundlagen werden typische Lastfalle wie Antrieb und Bremsung oder Kurvenfahrt und ihre Wechselwirkungen mit der Radaufhangung untersucht, wobei die Bedeutung der Elasto-Kinematik mit einem eigenen Kapitel unterstrichen wird. Da heute kein Fahrzeug mehr ohne elektronische Regelsysteme auskommt, gibt die dritte Auflage des Buches einen Uberblick uber diese Systeme."
Control Systems for Heating, Ventilating and Air Conditioning, Sixth Edition is complete and covers both hardware control systems and modern control technology. The material is presented without bias and without prejudice toward particular hardware or software. Readers with an engineering degree will be reminded of the psychrometric processes associated with heating and air conditioning as they learn of the various controls schemes used in the variety of heating and air conditioning system types they will encountered in the field. Maintenance technicians will also find the book useful because it describes various control hardware and control strategies that were used in the past and are prevalent in most existing heating and air conditioning systems. Designers of new systems will find the fundamentals described in this book to be a useful starting point, and they will also benefit from descriptions of new digital technologies and energy management systems. This technology is found in modern building HVAC system designs.
The numerical simulation of combustion processes in internal combustion engines, including also the formation of pollutants, has become increasingly important in the recent years, and today the simulation of those processes has already become an indispensable tool when - veloping new combustion concepts. While pure thermodynamic models are well-established tools that are in use for the simulation of the transient behavior of complex systems for a long time, the phenomenological models have become more important in the recent years and have also been implemented in these simulation programs. In contrast to this, the thr- dimensional simulation of in-cylinder combustion, i. e. the detailed, integrated and continuous simulation of the process chain injection, mixture formation, ignition, heat release due to combustion and formation of pollutants, has been significantly improved, but there is still a number of challenging problems to solve, regarding for example the exact description of s- processes like the structure of turbulence during combustion as well as the appropriate choice of the numerical grid. While chapter 2 includes a short introduction of functionality and operating modes of internal combustion engines, the basics of kinetic reactions are presented in chapter 3. In chapter 4 the physical and chemical processes taking place in the combustion chamber are described. Ch- ter 5 is about phenomenological multi-zone models, and in chapter 6 the formation of poll- ants is described.
Thermal systems are essential features in power, chemical processing, air conditioning, and other industries where heat and power are used. As the cost and complexity of designing thermal systems have increased, the need to understand and improve the design process has also grown. This book describes recent progress in the design of thermal systems. The book begins with a brief history and outline of developments in thermal system design. Chapters then discuss computer design tools for the power and chemical industries, predicting physical properties with computational tools, the use of 'pinch analysis' to improve thermal efficiency, applications of the exergy concept, the emerging concept of thermoeconomics, and the potential for artificial intelligence and expert systems in the design of thermal systems. With chapters written by internationally recognised authorities, the book offers a state-of-the-art review for both researchers and practitioners in mechanical, aerospace, chemical, and power engineering.
This book reports the state of the art of energy-efficient electrical motor driven system technologies, which can be used now and in the near future to achieve significant and cost-effective energy savings. It includes the recent developments in advanced electrical motor end-use devices (pumps, fans and compressors) by some of the largest manufacturers. Policies and programs to promote the large scale penetration of energy-efficient technologies and the market transformation are featured in the book, describing the experiences carried out in different parts of the world. This extensive coverage includes contributions from relevant institutions in the Europe, North America, Latin America, Africa, Asia, Australia and New Zealand.
This book, with the CD-ROM included, is the documentation of a
unique collaborative effort in evaluating formal methods for usage
under industrial constraints: the major techniques for formally
supported specification, design, and verification of large programs
and complex systems are applied to a non-trivial and non-academic
problem which is typical for industrial informal requirements
specifications.
The book presents the select proceedings of the 3rd International Conference on Computational and Experimental Methods (ICCEMME 2021). It covers the broad topic of industrial and production engineering such as sustainable manufacturing systems, rapid prototyping, manufacturing process optimization, machining, and machine tools, casting, welding, forming, machining, machine tools, computer-aided engineering, manufacturing management, automation and metrology. This book will be useful for the researchers and professionals working in the in the field of industrial and production engineering.
Einordnung und Definition der Getriebe.- Grundlagen der Vorgelegegetriebe.- Grundlagen der Planetengetriebe.- Vergleich verschiedener Getriebesysteme.- Zusammenarbeit Kraftmaschine-Getriebe-Arbeitsmaschine.- Getriebe fur Personen-, Sport- und Rennsportwagen sowie leichte Lastkraftwagen.- Getriebe fur Nutzfahrzeuge, schwerere Lastkraftwagen und Omnibusse.- Getriebe fur Baumaschinen und Traktoren.- Verteilergetriebe, Achsgetriebe.- Schnellganggetriebe.- Differentialsperren und Selbtssperrdiffrenetiale.- Schaltungselemente, Synchronisierungen.- OElpumpen in Zahnradgetrieben.- Zahnradschaden.
Combustion is very much an interdisciplinary topic, drawing together elements of chemistry, fluid mechanics and heat transfer. It is an ingredient in many undergraduate degree programmes, ranging from a pivotal role in fuel science through to a component part of courses in chemical, process and building services engineering. For many students in those disciplines where combustion in heating plant is an important part of their studies, there are often problems in coming to grips with the basic principles underlying the combustion of hydrocarbon fuels. In particular, the concepts of chemical and related thermodynamic changes can prove difficult to assimilate. The scientific literature dealing with combustion tends to be rather polarised, with a wealth of literature aimed at the specialist reader, but at a basic level the fundamentals of this important process are often treated rather tersely in textbooks on thermodynamics. The objective of this book is to provide an introduction to the basic principles of the combustion of hydrocarbon fuels in heating plant for buildings and industrial processes. In those chapters where practice in problem solving can make a positive contribution to understanding, some numerical problems have been included. Acknowledging the ever-widening use of computers in technical education, a number of algorithms which can be easily coded up for solving numerical problems have been incorporated in the text. These can prove particularly useful in, for example, the calculation of certain fluid properties, either for use in hand calculation or for incorporation into larger programs.
This text explains the basic fluid mechanics and thermodynamics underlying the design of pumps, fans, compressors and turbines in an uncomplicated way, with many examples and worked exercises. By treating the machines as either centrifugal, centripetal or axial flow devices, it explains the basic principles of each and clarifies their similarities and differences. The book covers problems such as cavitation, refers to computer-based exercises wherever possible and includes information on the current advances in analysis and performance control.
As the title implies, this book provides an introduction to thermodynamics for students on degree and HND courses in engineering. These courses are placing increased emphasis on business, design, management, and manufacture. As a consequence, the direct class-time for thermodynamics is being reduced and students are encouraged to self learn. This book has been written with this in mind. The text is brief and to the point, with a minimum of mathematical content. Each chapter defines a list of aims and concludes with a short summary. The summary provides an overview of the key words, phrases and equations introduced within the chapter. It is recognized that students see thermodynamics as a problem-solving activity and this is reflected by the emphasis on the modelling of situations. As a guide to problem solving, worked examples are included throughout the book. In addition, students are encouraged to work through the problems at the end of each chapter, for which outline solutions are provided. There is a certain timelessness about thermodynamics because the funda mentals do not change. However, there is currently some debate over which sign convention should apply to work entering, or leaving, a thermodynamic system. I have retained the traditional convention of work out of a system being positive. This fits in with the concept of a heat engine as a device that takes in heat and, as a result, produces positive work."
The German R + D program "Solares Testzentrum Almeria" (SOTA) provided the scientific basis for the realization of advanced solar technologies including facility modifications, component tests and new lines of development. One of the working packages, WP 300, addressed the "Scientific Support" by the performance of preparatory studies, exploratory laboratory activities and qualified expertise. Universities, Research Institutes and Company R + D Entities in Germany were enabled to treat the following aspects: * Meteorological, system and cost investigations, * Development of important components as concentrator, receiver, storage, * Utilization of solar energy for process heat and chemical reactions. Besides the continued development of terminal concentrators, the studies concentrated in 1991 on the development of solar chemistry processes. The reports of the activities were finalized recently and collected in the present volume. The final reports were printed as received. The achieved results and the views expressed within the reports were under the responsibility of the authors. As organizers of these solar thermal activities and as editors of the corresponding final reports, we would like to thank BMFT and KFA-BEO for the farsighted funding (grant no. 0328823A) and the research groups for their engagement and consultations. We would also like to thank Ms S. Preusser and Ms U. Rachow, who among many others contributed to the realization of this volume.
Twentyfour years have gone by since the publication of K. Lohner and H. Muller's comprehen sive work "Gemischbildung und Verbrennung im Ottomotor" in 1967 1.1]' Naturally, the field of mixture formation and combustion in the spark-ignition engine has wit nessed great technological advances and many new findings in the intervening years, so that the time seemed ripe for presenting a summary of recent research and developments. There fore, I gladly took up the suggestion of the editors of this series of books, Professor Dr. H. List and Professor Dr. A. Pischinger, to write a book summarizing the present state of the art. A center of activity of the Institute of Internal-Combustion Engines and Automotive Engineering at the Vienna Technical University, which I am heading, is the field of mixture formation -there fore, many new results that have been achieved in this area in collaboration with the respective industry have been included in this volume. The basic principles of combustion are discussed only to that extent which seemect necessary for an understanding of the effects of mixture formation. The focal point of this volume is the mixture formation in spark-ignition engines, covering both the theory and actual design of the mixture formation units and appropriate intake manifolds. Also, the related measurement technology is explained in this work."
The main concern of this book is the application of infinite moment theory to the problem of controllability of one-di- mensional vibrating systems (like strings and beams) and heating processes. Distributed as well as boundary control is considered. In the case of vibrating systems trigonometric moment pro- blems are to be investigated which is done on the basis of an abstract moment theory in Hilbert spaces. Equivalently, alsothe theory of linear operator equations on Hilbert spa- ces ( partly with unbounded operators) is applied to the problem of controllability and time-minimal controllability. In the case of heating processes exponential moment problems are to be dealt with which is done on the basis of an ab- stract moment theory in Banach spaces. Time-minimal control- lability is also treated with the aid of the theory of line- aroperator equations on Banach spaces. Some advanced knowledge in functional analyis and on partial differential equations is preassumed for a fluent reader of the book, but parts of it are also readable with basic ma- thematical knowledge (for instance, the finite-dimensional part of the introduction).
The definitive guide for steam power plant systems and operation fully updated For more than 80 years, this book has been a trusted source of information on steam power plants, including the design, operation, and maintenance of major systems. Steam Plant Operation, Tenth Edition, emphasizes the importance of a comprehensive energy plan utilizing all economical sources of energy, including fossil fuels, nuclear power, and renewable energy sources. The book continues to describe the important role that steam plays in our power production and it identifies the associated risks and potential problems for each source of energy. This practical guide provides common power plant calculations such as plant heat rate, boiler efficiency, pump performance, combustion processes, and the systems necessary to control plant emissions. Numerous illustrations and clear presentation of the material will assist in preparing for an operator's license exam. Throughout, real-world examples demonstrate each topic. Engineering students will find a detailed introduction to steam power plant technology. * Offers concise explanations of concepts, from fundamentals through advanced design and operation * Recommended by several states as a key reference for their steam plant licensing exams
Das Bemessungskonzept "Betriebsfestigkeit" verfolgt das Ziel, Maschinen, Fahrzeuge oder andere Konstruktionen gegen zeitlich veranderliche Betriebslasten unter Berucksichtigung ihrer Umgebungsbedingungen fur eine bestimmte Nutzungsdauer zuverlassig bemessen zu koennen. Ingenieure, Wissenschaftler und Studenten finden in diesem Buch die experimentellen Grundlagen sowie erprobte und neuere Rechenverfahren der Betriebsfestigkeit fur eine ingenieurmassige Anwendung. Verfahren nach dem Nennspannungs-Konzept, dem Kerbgrund-Konzept und dem Bruchmechanik-Konzept werden vor ihrem theoretischen Hintergrund nach heutigem Erkenntnisstand behandelt. Der Autor zeigt auf, in welchen Grenzen die betreffenden Verfahren als verlasslich angesehen werden durfen. Zur Dauerfestigkeit bei hohen Schwingungszahlen sowie zu Eigenschaften von Faserverbundwerkstoffen wurden neue Erkenntnisse eingefugt. Fur den Betriebsfestigkeits-Nachweis in der Konstruktionspraxis gibt dieses Buch konkrete Hinweise.
This is the most up-to-date, comprehensive, and practical book on the subject available, explaining the concepts and related practical implementations of all major hot-wire anemometry applications. It introduces the logical framework for a computer-based HWA system and identifies the individual steps in the complete experimental procedure, ranging from probe selection to the presentation of analysed data. This major work will be invaluable as a reference for students, engineers, and researchers engaged in the field.
This is a text/reference illustrating thermal and hydraulic design of heat exchangers. The book shows how to apply the fundamentals of thermodynamics, heat transfer, and fluid dynamics for a systematic analysis of the phenomena in heat exchangers, important to energy effective operation in process plants.
This booklet is mainly meant for students at universities and colleges to solve problems in the field of power and chemical engineering, where water and steam are serving as working or process medium. Tables and diagrams will support engineers in research work and industrial practice too. All tabulated values given were recalculated; the thermodynamical properties have been calculated according to the 1984 IAPS formulation, the remaining properties result from IAPSs current releases. The increments for temperature and pressure for the saturation tables were decreased. In addition ten properties were added. Three new h,s-diagrams for compressed water will be useful in geographical and in jet cutting applications. |
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