Chemical Energy and Exergy

This book is a beginners introduction to chemical thermodynamics for engineers.

Chemical Energy and Exergy

Author: Norio Sato

Publisher: Elsevier

ISBN: 9780444516459

Page: 149

View: 298

This book is a beginners introduction to chemical thermodynamics for engineers. In the textbook efforts have been made to visualize as clearly as possible the main concepts of thermodynamic quantities such as enthalpy and entropy, thus making them more perceivable. Furthermore, intricate formulae in thermodynamics have been discussed as functionally unified sets of formulae to understand their meaning rather than to mathematically derive them in detail. In this textbook, the affinity of irreversible processes, defined by the second law of thermodynamics, has been treated as the main subject, rather than the equilibrium of chemical reactions. The concept of affinity is applicable in general not only to the processes of chemical reactions but also to all kinds of irreversible processes. This textbook also includes electrochemical thermodynamics in which, instead of the classical phenomenological approach, molecular science provides an advanced understanding of the reactions of charged particles such as ions and electrons at the electrodes. Recently, engineering thermodynamics has introduced a new thermodynamic potential called exergy, which essentially is related to the concept of the affinity of irreversible processes. This textbook discusses the relation between exergy and affinity and explains the exergy balance diagram and exergy vector diagram applicable to exergy analyses in chemical manufacturing processes. This textbook is written in the hope that the readers understand in a broad way the fundamental concepts of energy and exergy from chemical thermodynamics in practical applications. Finishing this book, the readers may easily step forward further into an advanced text of their specified line. - Visualizes the main concepts of thermodynamics to show the meaning of the quantities and formulae. - Focuses mainly on the affinity of irreversible processes and the related concept of exergy. - Provides an advanced understanding of electrochemical thermodynamics.

Efficiency of Biomass Energy

The book emphasizes the modern exergy (energy quality) approach applied to design and improve bioenergy systems. This text is the first to discuss the efficiency of all main steps involved in biomass production and conversion.

Efficiency of Biomass Energy

Author: Krzysztof J. Ptasinski

Publisher: John Wiley & Sons

ISBN: 1118702107

Page: 784

View: 302

Details energy and exergy efficiencies of all major aspects of bioenergy systems Covers all major bioenergy processes starting from photosynthesis and cultivation of biomass feedstocks and ending with final bioenergy products, like power, biofuels, and chemicals Each chapter includes historical developments, chemistry, major technologies, applications as well as energy, environmental and economic aspects in order to serve as an introduction to biomass and bioenergy A separate chapter introduces a beginner in easy accessible way to exergy analysis and the similarities and differences between energy and exergy efficiencies are underlined Includes case studies and illustrative examples of 1st, 2nd, and 3rd generation biofuels production, power and heat generation (thermal plants, fuel cells, boilers), and biorefineries Traditional fossil fuels-based technologies are also described in order to compare with the corresponding bioenergy systems

Science in China

This phenomenon results in the greater exergy destruction in combustion . To
reduce such energy - level difference between chemical energy and thermal
energy , a breakthrough is necessary to effectively decrease the energy level of ...

Science in China

Author:

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Analysis of Energy Efficiency of Industrial Processes

Such an effort is made in this book, which is concerned with methods for studying energy use efficiency in technological processes and estimation of the theoretical and actual energy reserves in a given process, technology, or industrial ...

Analysis of Energy Efficiency of Industrial Processes

Author: Vladimir S. Stepanov

Publisher: Springer Science & Business Media

ISBN: 3642771483

Page: 186

View: 509

It is universally recognized that the end of the current and the beginning of the next century will be characterized by a radical change in the existing trends in the economic development of all countries and a transition to new principles of economic management on the basis of a resource and energy conservation policy. Thus there is an urgent necessity to study methods, technical aids and economic consequences of this change, and particularly, to determine the possible amounts of energy resources which could be conserved (energy "reserves") in different spheres of the national economy. An increased interest towards energy conservation in industry, one of the largest energy consumers, is quite natural and is manifested by the large num ber of publications on this topic. But the majority of publications are devoted to the solution of narrowly defined problems, determination of energy reserves in specific processes and plants, efficiency estimation of individual energy conserva tion measures, etc. However, it is necessary to develop a general methodological approach to the solution of such problems and create a scientific and methodical base for realizing an energy conservation policy. Such an effort is made in this book, which is concerned with methods for studying energy use efficiency in technological processes and estimation of the theoretical and actual energy reserves in a given process, technology, or industrial sector on the basis of their complete energy balances.

Exergy

Exergy, Second Edition deals with exergy and its applications to various energy systems and applications as a potential tool for design, analysis and optimization, and its role in minimizing and/or eliminating environmental impacts and ...

Exergy

Author: Ibrahim Dincer

Publisher: Newnes

ISBN: 0080970907

Page: 576

View: 714

This book deals with exergy and its applications to various energy systems and applications as a potential tool for design, analysis and optimization, and its role in minimizing and/or eliminating environmental impacts and providing sustainable development. In this regard, several key topics ranging from the basics of the thermodynamic concepts to advanced exergy analysis techniques in a wide range of applications are covered as outlined in the contents. Offers comprehensive coverage of exergy and its applications, along with the most up-to-date information in the area with recent developments Connects exergy with three essential areas in terms of energy, environment and sustainable development Provides a number of illustrative examples, practical applications, and case studies Written in an easy-to-follow style, starting from the basics to advanced systems

Efficiency and Sustainability in the Energy and Chemical Industries

Using classic thermodynamic principles as the point of departure, this new edition of a popular resource supplies the understanding and tools required to measure process efficiency and sustainability with much improved accuracy.

Efficiency and Sustainability in the Energy and Chemical Industries

Author: Krishnan Sankaranarayanan

Publisher: CRC Press

ISBN: 143987607X

Page: 393

View: 650

Using classic thermodynamic principles as the point of departure, this new edition of a popular resource supplies the understanding and tools required to measure process efficiency and sustainability with much improved accuracy. Exploring the driving forces in the chemical and power industries, Efficiency and Sustainability in the Energy and Chemic

Energy Recovery and Saving

The comparison between the energy flow diagrams and the corresponding ones
of exergy , though these are only ... having a greater merit factor , can be avoided
; ( iv ) the different merit factor of the chemical energy of the combustion gas and ...

Energy Recovery and Saving

Author: Giacomo Bisio

Publisher: Nova Science Pub Incorporated

ISBN:

Page: 179

View: 793

Defining the 'exergy' of a system as a system-environment combination that measures the amount of work obtainable from the system, the authors examine exergy components in equilibrium and non-equilibrium states. The elaborated concepts are then used to examine energy recovery and savings in industrial plants. Finally, elements of exergy efficiency and economic utility are explored.

Hydrogen Energy Progress VII

To simplify the determination of efficiencies , material wastes from the fuel cell are
assumed to exit at T , and Po , and to have values of specific chemical energy
and the specific chemical exergy of zero . These assumptions , which are often ...

Hydrogen Energy Progress VII

Author:

Publisher:

ISBN:

Page: 2142

View: 722

Exergy Analysis for Energy Conversion Systems

Discover a straightforward and holistic look at energy conversion and conservation processes using the exergy concept with this thorough text.

Exergy Analysis for Energy Conversion Systems

Author: Efstathios Michaelides

Publisher: Cambridge University Press

ISBN: 1108480586

Page: 350

View: 962

Discover a straightforward and holistic look at energy conversion and conservation processes using the exergy concept with this thorough text. Explains the fundamental energy conversion processes in numerous diverse systems, ranging from jet engines and nuclear reactors to human bodies. Provides examples for applications to practical energy conversion processes and systems that use our naturally occurring energy resources, such as fossil fuels, solar energy, wind, geothermal, and nuclear fuels. With more than one-hundred diverse cases and solved examples, readers will be able to perform optimizations for a cleaner environment, a sustainable energy future, and affordable energy generation. An essential tool for practicing scientists and engineers who work or do research in the area of energy and exergy, as well as graduate students and faculty in chemical engineering, mechanical engineering and physics.

The Efficiency of Industrial Processes

Exergy Analysis and Optimization V. M. Brodyansky, M. V. Sorin, P. Le Goff.
calculation method of the chemical energy and exergy of substances . Isv .
VUZOV , Energetika 10 : 60 - 64 . ( In Russian ) 28 . V . S . Stepanov , 1984 .
Investigation ...

The Efficiency of Industrial Processes

Author: V. M. Brodyansky

Publisher: Elsevier Science Limited

ISBN:

Page: 487

View: 898

Hardbound. The subject of this book is the exergy analysis of the efficiency of processes involving energy and matter transformations. Efficiency is one of the most important criteria used in evaluating the performance of all types of processing plants; in particular those of the energy and chemical industries. The beauty of the exergetic approach to thermodynamic analysis is that it permits a universally applicable definition of efficiency and is free of contradictions in its treatment of numerous and diverse systems. The book provides the reader with the quantitative methods and calculations of efficiency considered to be applicable to different systems and their components. Methods, procedures and instructions for using the efficiency analysis in optimizing the performance of thermal, chemical and other industrial plants are also given. Numerous examples are used in the book to aid the reader in understanding the concepts of efficiency, exergy and thei

Extended Exergy Analysis

Linnhoff , B. , 1993 , “ Pinch Analysis and Exergy - A Comparison , " ENSEC '93
Energy Systems and Ecology - Proceedings of ... Linnhoff , B. , 1993 , “ Pinch
analysis - A State - of - the - Art Overview , " Transactions of the Institute of
Chemical ...

Extended Exergy Analysis

Author: Jon Chandler Creyts

Publisher:

ISBN:

Page: 122

View: 179

CPE

Chemical and Process Engineering and Atomic World. Exergy of Vapour / Gas
Mixtures Dipl . ... WITH the help of the available energy or exergy it is possible to
make a uniform assessment of all forms of energy ( heat , ' cold ' , mechanical and
 ...

CPE

Author:

Publisher:

ISBN:

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View: 406

Paper

The higher tar and oil fraction combined with the lower product gas exit
temperature results in a much higher ratio of chemical - to - sensible energy in
the product gas from the fixed - bed ( Table 1 ) . The exergy efficiency of the
gasifier ...

Paper

Author:

Publisher:

ISBN:

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Solar Engineering

Diver R. B., 1987 “ Receiver / Reactor Concepts for Thermochemical Transport of
Solar Energy,” ASME J. Sol. ... 1982, “Energy and Exergy Analysis of a Chemical
Process System with Distributed Parameters Based on the Energy- direction ...

Solar Engineering

Author:

Publisher:

ISBN:

Page:

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Exergy and Its Application

The book is divided into three main sections according to the approaches and purpose of each proposed chapter. The first section is an introduction to the book.

Exergy and Its Application

Author: Muhammad Aziz

Publisher: BoD – Books on Demand

ISBN: 1789846749

Page: 108

View: 439

Exergy has been defined as the maximum work that is useful, extracted from any process toward its equilibrium. Hence, it has a very strong connection with the second law of thermodynamics. In energy harvesting and management systems, the concept of exergy is very important because it represents the efficiency of the system. Exergy can be used as a tool to measure resource efficiency, as well as whole system sustainability. In addition, it can also be used to analyze and clarify the performance of each process; hence, methods of improvement can be determined.This book is the result of a very careful selection of chapters and contributors in the related field. The book is divided into three main sections according to the approaches and purpose of each proposed chapter. The first section is an introduction to the book. The second section, "Advanced energy conversions", describes several advanced technologies that are considered to have great potential in energy conversion and harvesting, and comprises three chapters focusing on photovoltaic/thermal systems with nanofluid, power-to-gas energy storage systems coupled with a combined cycle employing chemical looping combustion technology, and electromagnetic-based power generation. The third section focuses on the idea of "innovative energy management systems" toward high-quality energy systems. In this section, two different chapters describe the introduction of electric vehicles for demand-side energy management and the utilization of supercapacitors for very responsive energy storage in low-power modules. It is expected that this book will provide and enrich the state of the art in advanced energy systems, including energy conversion and management. All the chapters cover a broad range of disciplines, which are correlated in terms of the efforts toward efficient energy systems. In addition, the correlation between energy and exergy, and their understanding, are believed to be very important to improve energy efficiency and guarantee better energy quality.

Efficiency and Costing

Hierarchical Structure Analysis Based on Energy and Exergy Transformation of a
Process System MASARU ISHIDA ... to deal in a unified manner with many kinds
of energy , such as heat , mechanical work , chemical energy , and so on ( 1 , 2 ...

Efficiency and Costing

Author: Richard A. Gaggioli

Publisher: Amer Chemical Society

ISBN:

Page: 462

View: 269

Good,No Highlights,No Markup,all pages are intact, Slight Shelfwear,may have the corners slightly dented, may have slight color changes/slightly damaged spine.

Journal of Energy Resources Technology

... Eq . ( 26 ) results in the equation of exergy Duhem relation , ( iv ) the portion of
the transport via stresses which is irreversibly converted to thermochemical
energy , and Da ( B ; - ( Bio ) ; ; ) ( v ) the portion of the transport via body forces
which ...

Journal of Energy Resources Technology

Author:

Publisher:

ISBN:

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View: 990