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Books > Professional & Technical > Energy technology & engineering > General

Physics of Societal Issues - Calculations on National Security, Environment, and Energy (Paperback, Softcover reprint of... Physics of Societal Issues - Calculations on National Security, Environment, and Energy (Paperback, Softcover reprint of hardcover 1st ed. 2007)
David Hafemeister
R4,297 Discovery Miles 42 970 Ships in 10 - 15 working days

Physics of Societal Issues is a textbook for all those who wish to discuss the fundamental issues of energy use, nuclear weapons, and the environment using facts and figures instead of slogans and postures. It will provide the reader with the tools and insights needed to analyze many complex issues with insights gained from informed estimates and simple calculations. Taking his inspiration from Fermi's famous "back of the envelope" calculations, Hafemeister shows how to capture the essence of a problem in rough estimates of the important parameters and then to use those estimates to gauge the effects of policy decisions. Hafemeister draws on dozens of years of experience working on just these issues in the US Senate, the national Academy of Sciences, and several Federal agencies, as well as the Lawrence-Berkeley, Los Alamos, and Argonne national laboratories to provide details and examples as well as insight into the issues needed to plan public policy. The book is divided into three parts, each treating an area in which physics plays a major role: - National security: nuclear weapons and their effects, missile defenses, arms control and verification, and nuclear proliferation and terrorism - The environment: pollution dispersal and control, radioactive pollution, climate change, and the epidemiology of electromagnetic radiation - Energy: estimating energy resources and use, use of energy in buildings and for transportation, renewable energy sources, and the economics of energy use. Each chapter includes numerous problems to challenge the reader and to extend the discussion.

It is the only equation-oriented book for physics seniors and gradutate students that covers the three main physics and society issues.

Nonlinear and Adaptive Control with Applications (Paperback, Softcover reprint of hardcover 1st ed. 2008): Alessandro Astolfi,... Nonlinear and Adaptive Control with Applications (Paperback, Softcover reprint of hardcover 1st ed. 2008)
Alessandro Astolfi, Dimitrios Karagiannis, Romeo Ortega
R4,489 Discovery Miles 44 890 Ships in 10 - 15 working days

The authors here provide a detailed treatment of the design of robust adaptive controllers for nonlinear systems with uncertainties. They employ a new tool based on the ideas of system immersion and manifold invariance. New algorithms are delivered for the construction of robust asymptotically-stabilizing and adaptive control laws for nonlinear systems. The methods proposed lead to modular schemes that are easier to tune than their counterparts obtained from Lyapunov redesign.

The Economics of Natural Gas Storage - A European Perspective (Paperback, Softcover reprint of hardcover 1st ed. 2009): Anna... The Economics of Natural Gas Storage - A European Perspective (Paperback, Softcover reprint of hardcover 1st ed. 2009)
Anna Creti
R2,905 Discovery Miles 29 050 Ships in 10 - 15 working days

I remember that the idea of this book emerged ?rst in Toulouse, during the Third Conference on Energy Markets - 3 years ago now. Anna Cret` ? gave a talk on a model dealing with seasonal gas storage in the USA, and Christian Von Hirschausen was her discussant. Both of them were devoting their efforts to understand the natural gas market in Europe and the relevant liberalization process. I found their interest in storage rather original, so I encouraged Anna to collect the most original cont- butions on this topic. Back in Milan with this idea in mind, she organized a working group at IEFE- Bocconi University, where she works. Then, during the following year, she - changed ideas and organized several meetings with the book's contributors. She regularly invited the most important Italian gas sector representatives to these me- ings, to make sure that the economic models were well suited to tackle the issues at stake in the European gas industry.

Catalogue of Risks - Natural, Technical, Social and Health Risks (Paperback, Softcover reprint of hardcover 1st ed. 2008): Dirk... Catalogue of Risks - Natural, Technical, Social and Health Risks (Paperback, Softcover reprint of hardcover 1st ed. 2008)
Dirk Proske
R4,993 Discovery Miles 49 930 Ships in 10 - 15 working days

Since the German edition of this book, the topic of risk has experienced even greater attention, not only in the world of science but also in other fields, such as economics and politics. Therefore, many new publications have evolved. To keep with the idea of an encyclopedia for the topic of risk, this book has been completely reworked. Not only are many updated examples included in chapter "Risks and disasters" but also new chapters have been introduced, such as the chapter "Indetermination and risk." This new chapter was developed since the question "Is it possible for risks to be completely eliminated, and if not why?" has become a major point of c- cern. Therefore, especially in this chapter, the focus of the book has - tended from a simple mathematical or engineering point of view to include much broader concepts. Here, not only aspects of system theory have to be considered, but also some general philosophical questions start to inf- ence the considerations of the topic of risk. The main goal of this edition, however, is not only the extension and revision of the book, but also the translation into the English language to allow more readers access to the ideas of the book. The author deeply hopes that the success the book made in the German edition continues and that readers experience a major gain from reading the book.

Vector Control of Three-Phase AC Machines - System Development in the Practice (Paperback, Softcover reprint of hardcover 1st... Vector Control of Three-Phase AC Machines - System Development in the Practice (Paperback, Softcover reprint of hardcover 1st ed. 2008)
Nguyen Phung Quang, Joerg-Andreas Dittrich
R5,268 Discovery Miles 52 680 Ships in 10 - 15 working days

This monograph covers the area of vector control of three-phase AC machines, in particular induction motors with squirrel-cage rotor (IM), permanent excited synchronous motors (PMSM) and doubly-fed induction machines (DFIM), from the viewpoint of the practical design and development. Main focus is on the application of the IM and the PMSM in electrical drive systems, where the method of the field-orientated control has been successfully established in the practice, and on the use of the grid voltage orientated controlled DFIM in the wind power plants.
After a summary of the basic structure of a field-oriented controlled three-phase AC drive as well as of a grid voltage orientated controlled wind power plant the inverter control by space vector modulation is extensively discussed with the help of many examples to illustrate the practical application. Based on the basic machine equations, the continuous and the discrete machine models of IM, PMSM and DFIM are derived and questions regarding feedback acquisition and the practical implementation of the field-oriented control are highlighted. The design of vectorial two-dimensional current controllers using the discrete models is then discussed in connection with other essential problems like control variable limitation. Several alternative controller configurations are introduced. Further emphasis is given to determining the machine parameters by calculation from name-plate data and automatic offline parameter identification. Questions of energy efficient operation are addressed, particularly relating to efficiency and torque optimal control strategies under consideration of state variable limitations. Control concepts are proposed for the electrical system of wind-power plants with DFIM, an application which has gained wide-spread importance in recent years. The presented control concept is proven practically and can be regarded as pioneering for new developments.

Control applications for AC drives usually feature linear algorithms in spite of the machine itself being characterized by a non-linear process model. Nevertheless, the introduced control structures have led to a relatively mature stage of development in the practice. Control approaches which take into account system nonlinearities from the outset may however fare better in a number of circumstances. Starting from the structural nonlinearity of the machines, the suitable nonlinear models are derived, and in the process nonlinear controllers are designed on the basis of the method of the "exact linearization" which proves to be the most suitable in comparison with other methods like "backstepping-based" or "passivity-based" designs.

While compiling this book, the authors had been dedicated to expose the problems as close as possible oriented on practical and implementation-related requirements. The theoretical background is detailed as much as needed to understand the subjects; numerous equations, figures, diagrams and appendices support the detailed description of the design processes.

Process Control Performance Assessment - From Theory to Implementation (Paperback, Softcover reprint of hardcover 1st ed.... Process Control Performance Assessment - From Theory to Implementation (Paperback, Softcover reprint of hardcover 1st ed. 2007)
Andrzej Ordys, Damien Uduehi, Michael A. Johnson
R4,502 Discovery Miles 45 020 Ships in 10 - 15 working days

This book is a practical guide to the application of control benchmarking to real, complex, industrial processes. The variety of industrial case studies gives the benchmarking ideas presented a robust real-world attitude. The book deals with control engineering principles and economic and management aspects of benchmarking. It shows the reader how to avoid common problems in benchmarking and details the benefits of effective benchmarking.

Field Models in Electricity and Magnetism (Paperback, Softcover reprint of hardcover 1st ed. 2008): Paolo Di Barba, Antonio... Field Models in Electricity and Magnetism (Paperback, Softcover reprint of hardcover 1st ed. 2008)
Paolo Di Barba, Antonio Savini, Slawomir Wiak
R2,957 Discovery Miles 29 570 Ships in 10 - 15 working days

Covering the development of field computation in the past forty years, this book is a concise, comprehensive and up-to-date introduction to methods for the analysis and synthesis of electric and magnetic fields. A broad view of the subject of field models in electricity and magnetism, ranging from basic theory to numerical applications, is offered. The approach throughout is to solve field problems directly from partial differential equations in terms of vector quantities.

Explosively Driven Pulsed Power - Helical Magnetic Flux Compression Generators (Paperback, Softcover reprint of hardcover 1st... Explosively Driven Pulsed Power - Helical Magnetic Flux Compression Generators (Paperback, Softcover reprint of hardcover 1st ed. 2005)
Andreas A. Neuber
R5,758 Discovery Miles 57 580 Ships in 10 - 15 working days

While the basic operating principles of Helical Magnetic Flux Compression Generators are easy to understand, the details of their construction and performance limits have been described only in government reports, many of them classified. Conferences in the field of flux compression are also dominated by contributions from government (US and foreign) laboratories. And the government-sponsored research has usually been concerned with very large generators with explosive charges that require elaborate facilities and safety arrangements. This book emphasizes research into small generators (less than 500 grams of high explosives) and explains in detail the physical fundamentals, construction details, and parameter-variation effects related to them.

Advancements in Electric Machines (Paperback, Softcover reprint of hardcover 1st ed. 2009): J. F. Gieras Advancements in Electric Machines (Paperback, Softcover reprint of hardcover 1st ed. 2009)
J. F. Gieras
R3,721 Discovery Miles 37 210 Ships in 10 - 15 working days

Traditionally, electrical machines are classi?ed into d. c. commutator (brushed) machines, induction (asynchronous) machines and synchronous machines. These three types of electrical machines are still regarded in many academic curricula as fundamental types, despite that d. c. brushed machines (except small machines) have been gradually abandoned and PM brushless machines (PMBM) and switched reluctance machines (SRM) have been in mass p- duction and use for at least two decades. Recently, new topologies of high torque density motors, high speed motors, integrated motor drives and special motors have been developed. Progress in electric machines technology is stimulated by new materials, new areas of applications, impact of power electronics, need for energy saving and new technological challenges. The development of electric machines in the next few years will mostly be stimulated by computer hardware, residential and public applications and transportation systems (land, sea and air). At many Universities teaching and research strategy oriented towards el- trical machinery is not up to date and has not been changed in some co- tries almost since the end of the WWII. In spite of many excellent academic research achievements, the academia-industry collaboration and technology transfer are underestimated or, quite often, neglected. Underestimation of the role of industry, unfamiliarity with new trends and restraint from technology transfer results, with time, in lack of external ?nancial support and drastic - cline in the number of students interested in Power Electrical Engineering.

Modern Thermodynamics with Statistical Mechanics (Paperback, Softcover reprint of hardcover 1st ed. 2009): Carl S. Helrich Modern Thermodynamics with Statistical Mechanics (Paperback, Softcover reprint of hardcover 1st ed. 2009)
Carl S. Helrich
R1,736 Discovery Miles 17 360 Ships in 10 - 15 working days

Thermodynamics is not the oldest of sciences. Mechanics can make that claim. Thermodynamicsisaproductofsomeofthegreatestscienti?cmindsofthe19thand 20th centuries. But it is suf?ciently established that most authors of new textbooks in thermodynamics ?nd it necessary to justify their writing of yet another textbook. I ?nd this an unnecessary exercise because of the centrality of thermodynamics as a science in physics, chemistry, biology, and medicine. I do acknowledge, however, that instruction in thermodynamics often leaves the student in a confused state. My attempt in this book is to present thermodynamics in as simple and as uni?ed a form as possible. As teachers we identify the failures of our own teachers and attempt to correct them. Although I personally acknowledge with a deep gratitude the appreciation for thermodynamics that I found as an undergraduate, I also realize that my teachers did not convey to me the sweeping grandeur of thermodynamics. Speci?cally the s- plicity and the power that James Clerk Maxwell found in the methods of Gibbs were not part of my undergraduate experience. Unfortunately some modern authors also seem to miss this central theme, choosing instead to introduce the thermodynamic potentials as only useful functions at various points in the development.

Electricity Market Reforms - Economics and Policy Challenges (Hardcover, Edition.): Lev S. Belyaev Electricity Market Reforms - Economics and Policy Challenges (Hardcover, Edition.)
Lev S. Belyaev
R3,122 Discovery Miles 31 220 Ships in 10 - 15 working days

With the global demand for energy skyrocketing, over the past twenty years many countries have restructured their electric power industries, typically moving from a regulated monopoly to a competitive market structure. The results of these reforms vary significantly from country to country depending on the market organization model and national conditions. This book examines the restructuring in both developed and developing nations, with particular focus on the United States, Great Britain, China, and Russia, and addresses the problems arising from these transitions. The book also contains a comprehensive analysis of different electricity market models and their compatibility with the properties of electric power systems and country conditions. As the most thorough and up to date analysis of the theory and practical experience of electricity deregulation, this book is a must-read for academics, students and researchers with an interest in electric power industry restructuring. It also has direct relevance for engineers, regulators and other decision makers in companies and governmental agencies concerned with energy issues.

Drive Solutions - Mechatronics for Production and Logistics (Paperback, Softcover reprint of hardcover 1st ed. 2008): E. Kiel Drive Solutions - Mechatronics for Production and Logistics (Paperback, Softcover reprint of hardcover 1st ed. 2008)
E. Kiel; Edited by Edwin Kiel
R3,294 Discovery Miles 32 940 Ships in 10 - 15 working days

Highly automated production and logistics facilities require mechatronic drive solutions. This book describes in which way the industrial production and logistics work and shows the structure of the drive solutions required for this purpose. The functionality of the mechanical and electronic elements of a drive system is described, and their basic dimensioning principles are explained. The authors also outline the engineering, reliability, and important aspects of the life cycle.

Engineering Interrelated Electricity Markets - An Agent-Based Computational Approach (Paperback, Softcover reprint of hardcover... Engineering Interrelated Electricity Markets - An Agent-Based Computational Approach (Paperback, Softcover reprint of hardcover 1st ed. 2008)
Anke Weidlich
R2,926 Discovery Miles 29 260 Ships in 10 - 15 working days

Due to the characteristics of electricity, power markets rank among the most complex markets operated at present. The requirements of an environmentally sustainable, economically efficient, and secure energy supply have resulted in the emergence of several interrelated markets that have to be carefully engineered in order to ensure efficient market outcomes. This book presents an agent-based simulation model that facilitates electricity market research. Simulation outcomes from this model are validated against price data from German power markets. The results significantly contribute to existing research in agent-based simulation and electricity market modeling, and provide insights into the impact of the market structure and market design on electricity prices. The book addresses researchers, lecturers and students who are interested in applying agent-based simulation to power markets. It provides a thorough discussion of the methodology and helpful details for model implementation.

Progress in Scale Modeling - Summary of the First International Symposium on Scale Modeling (ISSM I in 1988) and Selected... Progress in Scale Modeling - Summary of the First International Symposium on Scale Modeling (ISSM I in 1988) and Selected Papers from Subsequent Symposia (ISSM II in 1997 through ISSM V in 2006) (Paperback, Softcover reprint of hardcover 1st ed. 2008)
Kozo Saito
R4,567 Discovery Miles 45 670 Ships in 10 - 15 working days

Scale modeling can play an important role in R&D. When engineers receive some ideas in new product development, they can test how the new design looks by bui- ing scale models and they can get an actual feeling with the prototype through their imagination. Professor Emori often said: "When children play with a toy airplane, their mind is wondering about the prototype airplane which they haven't ridden. " Children can use the scale model airplane as a means to enter into an imagi- tive world of wonder by testing in their own way how the actual airplane might function, how the actual airplane can maneuver aerodynamically, what might be the actual sound of a jet engine, how to safely land the actual airplane, and so on. This imagination that scale models can provide for children will help them later develop professional intuition. Physical scale models can never be entirely succe- fully replaced by computer screens where virtual models are displayed and fancy functions are demonstrated. Not only children but also adults can learn things by actually touching things only offered by physical models, helping all of us develop imagination and feeling eventually leading toward Kufu. Einstein's famous "thought experiments [11]," which helped him to restructure modern physics may possibly and effectively be taught by letting researchers play with scale models!? References 1. I. Emori, K. Saito, and K. Sekimoto, Mokei Jikken no Riron to Ouyou (Scale Models in Engineering: Its Theory and Application), Gihodo, Tokyo, Third Edition, 2000.

Water Risk Modeling - Developing Risk-Return Management Techniques in Finance and Beyond (Hardcover, 1st ed. 2023): Dieter... Water Risk Modeling - Developing Risk-Return Management Techniques in Finance and Beyond (Hardcover, 1st ed. 2023)
Dieter Gramlich, Thomas Walker, Maya Michaeli, Charlotte Esme Frank
R4,577 Discovery Miles 45 770 Ships in 12 - 17 working days

This book sheds light on the topic of financial water risk by examining the modeling challenges associated with physical, regulatory, and reputational water risk in finance. It explores various approaches to operationalize water risk from a financial analysis, investment management, and climate science perspective. The analysis of tools to assess water risk provides the basis for the development of appropriate risk-return management techniques in finance and beyond. This book provides new insights by focusing on financial water threats and their related opportunities. It will be of interest to both academics and practitioners who work at the interface of finance, economics, nature, and society.

Turbomachinery Flow Physics and Dynamic Performance (Paperback, Softcover reprint of hardcover 1st ed. 2005): Meinhard T.... Turbomachinery Flow Physics and Dynamic Performance (Paperback, Softcover reprint of hardcover 1st ed. 2005)
Meinhard T. Schobeiri
R4,793 Discovery Miles 47 930 Ships in 10 - 15 working days

Over the past three decades turbomachines experienced a steep increase in efficiency and performance. Based on fundamental principles of turbomachinery thermo-fluid mechanics, numerous CFD based calculation methods are being developed to simulate the complex 3-dimensional, highly unsteady turbulent flow within turbine or compressor stages. The objective of this book is to present the fundamental principals of turbomachinery fluid-thermodynamic design process of turbine and compressor components, power generation and aircraft gas turbines in a unified and compact manner. The book provides senior undergraduate students, graduate students and engineers in the turbomachinery industry with a solid background of turbomachinery flow physics and performance fundamentals that are essential for understanding turbomachinery performance and flow complexes.

Theory of Periodic Conjugate Heat Transfer (Paperback, Softcover reprint of hardcover 1st ed. 2007): Yuri B. Zudin Theory of Periodic Conjugate Heat Transfer (Paperback, Softcover reprint of hardcover 1st ed. 2007)
Yuri B. Zudin
R3,466 Discovery Miles 34 660 Ships in 10 - 15 working days

Here is a new method for calculating heat transfer in coupled convective-conductive fluid-wall systems under periodical intensity oscillations in fluid flow. The true steady state mean value of the heat transfer coefficient must be multiplied by a newly defined coupling factor, which is always smaller than one and depends on the coupling parameters Biot number, Fourier number as well as dimensionless geometry and oscillation parameters. Includes characteristic solved problems, with tables and diagrams.

Optimization in the Energy Industry (Paperback, 1st ed. Softcover of orig. ed. 2009): Josef Kallrath, Panos M. Pardalos,... Optimization in the Energy Industry (Paperback, 1st ed. Softcover of orig. ed. 2009)
Josef Kallrath, Panos M. Pardalos, Steffen Rebennack, Max Scheidt
R4,567 Discovery Miles 45 670 Ships in 10 - 15 working days

Today, the optimization of production planning processes by means of IT and quantitative methods is a de-facto standard in the energy industry. Franch et al. inChapter1andIkenouyeinChapter2giveanintroduction, overview, and reasonsforthis. Furthermore, theenergyproblemnowisnotonlyachallenging one but also one of the most important issues in the world from the political and economical points of view. In every country, the government is faced with the problem of how to adopt the system of 'Cap and Trade. ' Especially energy consuming industries, such as steel, power, oil and chemicals, are seriously confronted with this problem. VIII Preface This is also the reason why the German Operations Research Society (GOR) and one of its working groups, held a symposium with the title "Stochastic Optimization in the Energy Industry. " During the 78th meeting of the GOR working group "Praxis der Mathematischen Optimierung/Real World Optimization" in Aachen at Procom GmbH on April 21/22, 2007, the speakers with an application background explained their requirements for stochasticoptimizationsolutionsbasedonpracticalexperiences. Thespeakers from the research side and the software system suppliers examined di?erent aspects of the whole subject - from the integration of wind energy, the chain of errors in nuclear power plants and the scheduling of hydroelectric power stations, and the risk assessment in trading activities to the various software systems which support stochastic optimization methods. The symposium o?ered an interesting overview which re?ected the - quirements, possibilities and restrictions of "Stochastic Optimization in the Energy Industry.

Convection in Porous Media (Paperback, Softcover reprint of hardcover 3rd ed. 2006): D.A. Nield, Adrian Bejan Convection in Porous Media (Paperback, Softcover reprint of hardcover 3rd ed. 2006)
D.A. Nield, Adrian Bejan
R4,856 Discovery Miles 48 560 Ships in 10 - 15 working days

This new edition includes nearly 1000 new references.

Plant Biotechnology for Sustainable Production of Energy and Co-products (Hardcover, 2010 Ed.): Peter N. Mascia, Jurgen... Plant Biotechnology for Sustainable Production of Energy and Co-products (Hardcover, 2010 Ed.)
Peter N. Mascia, Jurgen Scheffran, Jack M. Widholm
R4,593 Discovery Miles 45 930 Ships in 10 - 15 working days

This book is a collection of chapters concerning the use of biomass for the sustainable production of energy and chemicals-an important goal that will help decrease the production of greenhouse gases to help mitigate global warming, provide energy security in the face of dwindling petroleum reserves, improve balance of payment problems and spur local economic development. Clearly there are ways to save energy that need to be encouraged more. These include more use of energy sources such as, among others, manure in anaerobic digesters, waste wood in forests as fuel or feedstock for cellulosic ethanol, and conservation reserve program (CRP) land crops that are presently unused in the US. The use of biofuels is not new; Rudolf Diesel used peanut oil as fuel in the ?rst engines he developed (Chap. 8), and ethanol was used in the early 1900s in the US as automobile fuel [Songstad et al. (2009) Historical perspective of biofuels: learning from the past to rediscover the future. In Vitro Cell Dev Biol Plant 45:189-192). Brazil now produces enough sugar cane ethanol to make up about 50% of its transportation fuel needs (Chap. 4). The next big thing will be cellulosic ethanol. At present, there is also the use of Miscanthus x giganteous as fuel for power plants in the UK (Chap. 2), bagasse (sugar cane waste) to power sugar cane mills (Chap. 4), and waste wood and sawdust to power sawmills (Chap. 7).

Handbook of Power Systems II (Hardcover, 2010 ed.): Steffen Rebennack, Panos M. Pardalos, Mario V F Pereira, Niko A. Iliadis Handbook of Power Systems II (Hardcover, 2010 ed.)
Steffen Rebennack, Panos M. Pardalos, Mario V F Pereira, Niko A. Iliadis
R4,585 Discovery Miles 45 850 Ships in 10 - 15 working days

Energy is one of the worlds most challenging problems, and power systems are an important aspect of energy related issues. This handbook contains state-of-the-art contributions on power systems modeling and optimization. The book is separated into two volumes with six sections, which cover the most important areas of energy systems. The first volume covers the topics operations planning and expansion planning while the second volume focuses on transmission and distribution modeling, forecasting in energy, energy auctions and markets, as well as risk management. The contributions are authored by recognized specialists in their fields and consist in either state-of-the-art reviews or examinations of state-of-the-art developments. The articles are not purely theoretical, but instead also discuss specific applications in power systems.

Handbook for Heat Exchangers and Tube Banks design (Hardcover, 2010): Donatello Annaratone Handbook for Heat Exchangers and Tube Banks design (Hardcover, 2010)
Donatello Annaratone
R4,342 Discovery Miles 43 420 Ships in 10 - 15 working days

The recently published book by the author, "Engineering Heat Transfer," already dealt with exact computation of heat exchangers and tube banks. In design c- putationthisisaccomplishedviacorrectivefactors;thelattermakesitpossibleto compute the actual mean temperature difference by starting from the logarithmic onerelativeto?uidsinparallel?oworcounter?ow. As far as veri?cation computation is concerned, corrective factors were int- ducedtocomputeacertaincharacteristicfactorcorrectly, asisfundamentalforthis typeofcomputation. Basedontheabove, theauthordecidedtoinvestigatefurther, re?ne, andwiden thistopic: theoutcomeofthisworkhasresultedinthishandbook. Newtypesofexchangerswereexamined;thecalculationwasre?nedtoproduce practicallyexactvaluesforthefactors. Thescopeoftheinvestigationwasincreased by widening the range of the starting factors. Furthermore, a greater number of valuestobeincludedinthetableswasconsidered. Finally, afewcharacteristicsof certainvaluesofthecorrectivefactorswerehighlighted. The?rstsectionisanintroduction;itsummarizesthefundamentalcriteriaofheat transferandproceedstoillustratethebehaviorof?uidsinbothparallelandcounter ?ow. Italsoshowshowtocomputethemeanisobaricspeci?cheatforsome?uids; itillustratesthesigni?canceofdesigncomputationandveri?cationcomputation. In addition, itillustrateshowtoproceedwithheatexchangersandtubebankstocarry outbothdesignandveri?cationcomputationcorrectly. AppendixAthenincludes36tablesasareferencefordesigncomputation, The tablescontainthecorrectivefactorsrequiredtoobtaintheactualmeantemperature differencebystartingfromthemeanlogarithmictemperaturedifferencerelativeto ?uidsinparallel?oworcounter?ow. Finally, Appendix B includes 35 tables for veri?cation computation. As far as heatexchangers areconcerned, itshowsthevaluesoffactor ? whichisrequired forthistypeofcomputation. Thevaluesofthecorrectivefactorsforcoilsandtube banksarealsopresented. Milano, Italy DonatelloAnnaratone v Notation c=speci?cheat(J/kgK) d=diameter(m) E=ef?ciencyfactor h=enthalpy(kJ/kg) k=thermalconductivity(W/mK) M=mass?owrate(kg/s) m=massmoisturepercentage(%) q=heatpertimeunit(W) 2 S=surface(m ) ? t=temperature( C) 2 U=overallheattransfercoef?cient(W/m K) x=thickness(m) 2 ? =heattransfercoef?cient(W/m K) ? =characteristicfactor ? =characteristicfactor ? =ef?ciency ? =correctivefactor ? =correctivefactor ? =characteristicfactor ? ?t=temperaturedifference( C) vii viii Notation Superscripts =heating?uid =heated?uid Subscripts c=counter?ow e=exchanger i=inside l=logarithmic m=mean o=outside p=constantpressure(isobaric), parallel?ow w=wall 1=inlet(forheatingorheated?uid) 2=outlet(forheatingorheated?uid) Contents 1 Introduction to Computation . . . . . . . . . . . . . . . . . . . . . 1 1. 1 GeneralConsiderations . . . . . . . . . . . . . . . . . . . . . . 1 1. 2 MeanIsobaricSpeci?cHeat . . . . . . . . . . . . . . . . . . . . 3 1. 2. 1 WaterandSuperheatedSteam . . . . . . . . . . . . . . . 4 1. 2. 2 AirandOtherGases. . . . . . . . . . . . . . . . . . . . 4 2 Design Computation. . . . . . . . . . . . . . . . . . . . . . . . . . 7 2. 1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 2. 2 FluidsinParallelFloworinCounterFlow . . . . . . . . . . . . 8 2. 3 TheMeanDifferenceinTemperatureinReality . . . . . . . . . 12 2. 3. 1 FluidsinCrossFlow. . . . . . . . . . . . . . . . . . . . 14 2. 3. 2 HeatExchangers. . . . . . . . . . . . . . . . . . . . . . 15 2. 3. 3 Coils. . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 2. 3. 4 TubeBankswithVariousPassagesoftheExternalFluid . 21

Cracked Rotors - A Survey on Static and Dynamic Behaviour Including Modelling and Diagnosis (Hardcover, 2010 ed.): Nicolo... Cracked Rotors - A Survey on Static and Dynamic Behaviour Including Modelling and Diagnosis (Hardcover, 2010 ed.)
Nicolo Bachschmid, Paolo Pennacchi, Ezio Tanzi
R4,743 Discovery Miles 47 430 Ships in 10 - 15 working days

Cracks can develop in rotating shafts and can propagate to relevant depths without affecting consistently the normal operating conditions of the shaft. In order to avoid catastrophic failures, accurate vibration analyses have to be performed for crack detection. The identification of the crack location and depth is possible by means of a model based diagnostic approach, provided that the model of the crack and the model of the cracked shaft dynamical behavior are accurate and reliable. This monograph shows the typical dynamical behavior of cracked shafts and presents tests for detecting cracks. The book describes how to model cracks, how to simulate the dynamical behavior of cracked shaft, and compares the corresponding numerical with experimental results. All effects of cracks on the vibrations of rotating shafts are analyzed, and some results of a numerical sensitivity analysis of the vibrations to the presence and severity of the crack are shown. Finally the book describes some crack identification procedures and shows some results in model based crack identification in position and depth. The book is useful for higher university courses in mechanical and energetic engineering, but also for skilled technical people employed in power generation industries.

The Oil and Gas Service Industry in Asia - A Comparison of Business Strategies (Paperback, 1st ed. 2010): Ty.I. The Oil and Gas Service Industry in Asia - A Comparison of Business Strategies (Paperback, 1st ed. 2010)
Ty.I.
R1,558 Discovery Miles 15 580 Ships in 10 - 15 working days

This book investigates the business strategies chosen by oil and gas service companies operating in China, Singapore and Malaysia. It provides an analytical view of the reliability of strategic theoretical frameworks based on Western business practice but applied in a non-Western business environment like Asia.

Sustainable and Resilient Critical Infrastructure Systems - Simulation, Modeling, and Intelligent Engineering (Hardcover,... Sustainable and Resilient Critical Infrastructure Systems - Simulation, Modeling, and Intelligent Engineering (Hardcover, Edition.)
Kasthurirangan Gopalakrishnan, Srinivas Peeta
R4,524 Discovery Miles 45 240 Ships in 10 - 15 working days

Sustainable and resilient critical infrastructure systems is an emerging paradigm in an evolving era of depleting assets in the midst of natural and man-made threats to provide a sustainable and high quality of life with optimized resources from social, economic, societal and environmental considerations. The increasing complexity and interconnectedness of civil and other interdependent infrastructure systems (electric power, energy, cyber-infrastructures, etc.) require inter- and multidisciplinary expertise required to engineer, monitor, and sustain these distributed large-scale complex adaptive infrastructure systems. This edited book is motivated by recent advances in simulation, modeling, sensing, communications/information, and intelligent and sustainable technologies that have resulted in the development of sophisticated methodologies and instruments to design, characterize, optimize, and evaluate critical infrastructure systems, their resilience, and their condition and the factors that cause their deterioration.

Specific topics discussed in this book include, but are not limited to: optimal infrastructure investment allocation for sustainability, framework for manifestation of tacit critical infrastructure knowledge, interdependencies between energy and transportation systems for national long term planning, intelligent transportation infrastructure technologies, emergent research issues in infrastructure interdependence research, framework for assessing the resilience of infrastructure and economic systems, maintenance optimization for heterogeneous infrastructure systems, optimal emergency infrastructure inspection scheduling, and sustainable rehabilitation of deteriorated transportation infrastructure systems.

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