Topic

# Exergy

About: Exergy is a(n) research topic. Over the lifetime, 14479 publication(s) have been published within this topic receiving 312170 citation(s). The topic is also known as: availability.

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01 Jan 1989-

Abstract: Part 1 Basic principles: thermodynamic functions and relations - the basic concepts, the first law of thermodynamics, Joule-Thomson effect, the second law of thermodynamics, the third law of thermodynamics (Nernst heat theorem), fundamental relations of thermodynamics, closed system with reactions, chemical potential, chemical equilibrium, mixtures, Gibbs phase rule, electrochemical reactions calculations of thermochemical functions - units and conventions, calculations of the thermochemical functions of pure substances, equilibrium calculations, exergy and entropy balances. Part 2 Compilation and presentation of thermochemical data: compilation of thermochemical data - basic thermochemical data, existing compilations, thermochemical tables. Part 3 Tables in the present work: preparation of the tables - general remarks, data sources, accuracy, units, standard states, reference phase for the elements at 298.15K and 1 bar construction of the tables - arrangement of substances, order of the phases in the tables contents and structure of the tables - formula, name and relative molar mass, tabulated functions, sequence of temperatures, phase transitions, the final temperature in the tables, references for the sources of data, abbreviations and symbols. Part 4 Examples of the use of the tables: examples of thermodynamic calculations - enthalpy changes, exergy and entropy balance calculations, equilibrium calculations, equilibrium in simplified systems with several phases and components, electrochemical energy conversion, high temperature fuel cell, the calculation of equilibria in multi-phases, multicomponent systems. Part 5 Information on the tables: fundamental constants and conversion factors - fundamental constants, conversion factors for energy units, conversions for entropies of gases, relative atomic masses of the elements based on A...=12 for 12C. Part 6 Symbols, abbreviations and references: symbols and abbreviations used in the tables reference phases of elements at 1 bar references for the data in the tables. Part 7 The tables: tables of thermochemical data of pure substances.

4,606 citations

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28 Nov 1995-

Abstract: Introduction to Thermal System Design Thermodynamics, Modeling, and Design Analysis Exergy Analysis Heat Transfer, Modeling, and Design Analysis Applications with Heat and Fluid Flow Applications with Thermodynamics and Heat and Fluid Flow Economic Analysis Thermoeconomic Analysis and Evaluation Thermoeconomic Optimization Appendices Index

3,050 citations

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30 Apr 1988-

Abstract: 1 Getting Started: Introductory Concepts and Definitions. 1.1 Using Thermodynamics. 1.2 Defining Systems. 1.3 Describing Systems and Their Behavior. 1.4 Measuring Mass, Length, Time, and Force. 1.5 Specific Volume. 1.6 Pressure. 1.7 Temperature. Chapter Summary and Study Guide. 2 Energy and the First Law of Thermodynamics. 2.1 Reviewing Mechanical Concepts of Energy. 2.2 Broadening Our Understanding of Work. 2.3 Broadening Our Understanding of Energy. 2.4 Energy Transfer by Heat. 2.5 Energy Accounting: Energy Balance for Closed Systems. 2.6 Energy Analysis of Cycles. Chapter Summary and Study Guide. 3 Evaluating Properties. 3.1 Getting Started. Evaluating Properties: General Considerations. 3.2 p-v-T Relation. 3.3 Studying Phase Change. 3.4 Retrieving Thermodynamic Properties. 3.5 Evaluating Pressure, Specific Volume, and Temperature. 3.6 Evaluating Specific Internal Energy and Enthalpy. 3.7 Evaluating Properties Using Computer Software. 3.8 Applying the Energy Balance Using Property Tables and Software. Chapter Summary and Study Guide. 4 Control Volume Analysis Using Energy. 4.1 Conservation of Mass for a Control Volume. 4.2 Forms of the Mass Rate Balance. 4.3 Applications of the Mass Rate Balance. 4.4 Conservation of Energy for a Control Volume. Chapter Summary and Study Guide. 5 The Second Law of Thermodynamics. 5.1 Introducing the Second Law. 5.2 Statements of the Second Law. 5.3 Identifying Irreversibilities. 5.4 Interpreting the Kelvin-Planck Statement. 5.5 Applying the Second Law to Thermodynamic Cycles. 5.6 Second Law Aspects of Power Cycles Interacting with Two Reservoirs. Chapter Summary and Study Guide. 6 Using Entropy. 6.1 Entropy-A System Property. 6.2 Retrieving Entropy Data. 6.3 Introducing the T dS Equations. 6.4 Entropy Change of an Incompressible Substance. 6.5 Entropy Change of an Ideal Gas. 6.6 Entropy Change in Internally Reversible Processes of Closed Systems. 6.7 Entropy Balance for Closed Systems. 6.8 Directionality of Processes. 6.9 Entropy Rate Balance for Control Volumes. Steady-State Flow Processes. Chapter Summary and Study Guide. 7 Exergy Analysis. 7.1 Introducing Exergy. 7.2 Conceptualizing Exergy. 7.3 Exergy of a System. 7.4 Closed System Exergy Balance. 7.5 Exergy Rate Balance for Control Volumes at Steady State. 7.6 Exergetic (Second Law) Efficiency. 7.7 Thermoeconomics. Chapter Summary and Study Guide. 8 Vapor Power Systems. 8.1 Modeling Vapor Power Systems. 8.2 Analyzing Vapor Power Systems-Rankine Cycle. 8.3 Improving Performance-Superheat and Reheat. 8.4 Improving Performance-Regenerative Vapor Power Cycle. 8.5 Other Vapor Cycle Aspects. 8.6 Case Study: Exergy Accounting of a Vapor Power Plant. Chapter Summary and Study Guide. 9 Gas Power Systems. Internal Combustion Engines. 9.1 Introducing Engine Terminology. 9.2 Air-Standard Otto Cycle. 9.3 Air-Standard Diesel Cycle. 9.4 Air-Standard Dual Cycle. Gas Turbine Power Plants. 9.5 Modeling Gas Turbine Power Plants. 9.6 Air-Standard Brayton Cycle. 9.7 Regenerative Gas Turbines. 9.8 Regenerative Gas Turbines with Reheat and Intercooling. 9.9 Gas Turbines for Aircraft Propulsion. 9.10 Combined Gas Turbine-Vapor Power Cycle. Chapter Summary and Study Guide. 10 Refrigeration and Heat Pump Systems. 10.1 Vapor Refrigeration Systems. 10.2 Analyzing Vapor-Compression Refrigeration Systems. 10.3 Refrigerant Properties. 10.4 Cascade and Multistage Vapor-Compression Systems. 10.5 Absorption Refrigeration. 10.6 Heat Pump Systems. 10.7 Gas Refrigeration Systems. Chapter Summary and Study Guide. 11 Thermodynamic Relations. 11.1 Using Equations of State. 11.2 Important Mathematical Relations. 11.3 Developing Property Relations. 11.4 Evaluating Changes in Entropy, Internal Energy, and Enthalpy. 11.5 Other Thermodynamic Relations. 11.6 Constructing Tables of Thermodynamic Properties. Charts for Enthalpy and Entropy. 11.8 p-v-T Relations for Gas Mixtures. 11.9 Analyzing Multicomponent Systems. Chapter Summary and Study Guide. 12 Ideal Gas Mixture and Psychrometric Applications. Ideal Gas Mixtures: General Considerations. 12.1 Describing Mixture Composition. 12.2 Relating p, V, and T for Ideal Gas Mixtures. 12.3 Evaluating U, H, S, and Specific Heats. 12.4 Analyzing Systems Involving Mixtures. Psychrometric Applications. 12.5 Introducing Psychrometric Principles. 12.6 Psychrometers: Measuring the Wet-Bulb and Dry-Bulb Temperatures. 12.7 Psychrometric Charts. 12.8 Analyzing Air-Conditioning Processes. 12.9 Cooling Towers. Chapter Summary and Study Guide. 13 Reacting Mixtures and Combustion. Combustion Fundamentals. 13.1 Introducing Combustion. 13.2 Conservation of Energy-Reacting Systems. 13.3 Determining the Adiabatic Flame Temperature. 13.4 Fuel Cells. 13.5 Absolute Entropy and the Third Law of Thermodynamics. Chemical Exergy. 13.6 Introducing Chemical Exergy. 13.7 Standard Chemical Exergy. 13.8 Exergy Summary. 13.9 Exergetic (Second Law) Efficiencies of Reacting Systems. Chapter Summary and Study Guide. 14 Chemical and Phase Equilibrium. Equilibrium Fundamentals. 14.1 Introducing Equilibrium Criteria. Chemical Equilibrium. 14.2 Equation of Reaction Equilibrium. 14.3 Calculating Equilibrium Compositions. 14.4 Further Examples of the Use of the Equilibrium Constant. Phase Equilibrium. 14.5 Equilibrium Between Two Phases of a Pure Substance. 14.6 Equilibrium of Multicomponent, Multiphase Systems. Chapter Summary and Study Guide. Appendix Tables, Figures, and Charts. Index to Tables in SI Units. Index to Tables in English Units. Index to Figures and Charts. Index. Answers to Selected Problems: Visit the student.

2,774 citations

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01 Sep 1988-

Abstract: The First Law of Thermodynamics. The Second Law of Thermodynamics. The Two Laws Combined: The Destruction of Exergy. Single--Phase Systems. Exergy Analysis. Multiphase Systems. Chemically Reactive Systems. Power Generation. Solar Power. Refrigeration. Thermodynamic Optimization. Irreversible Thermodynamics. Constructal Theory of Organization in Nature. Appendix. About the Author. Indexes.

2,650 citations

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01 Jan 1985-

Abstract: The subject of this book, the Exergy Method also known as the Availability Analysis, is a method of
thermodynamic analysis in which the basis of evaluation of thermodynamic losses follows from
the Second Law rather than the First Law of Thermodynamics. As a result of the recent developments in this technique combined with the increasing need to conserve fuel, the Exergy Method has gained in the last few years many new followers, both among practising engineers and academics. Its advantages, in relation to the traditional techniques which rely mainly on the First Law are now generally recognised. Although the Exergy Method has featured as the subject of many published papers in scientific and engineering journals and at conferences, very few comprehensive English language books on this subject have been published so far. This book is particularly intended for engineers
and students specialising in thermal and chemical plant design and operation as well as for applied scientists concerned with various aspects of conservation of energy. It introduces the subject in a manner that can be understood by anyone who is familiar with the fundamentals of Applied hermodynamics.Numerous examples are used in the book to aid the reader in assimilating the basic concepts and in mastering the techniques. The book contains a number of tables and charts which will be found of great assistance in calculations concerning topics such as thermoeconomics, refrigeration,
cryogenic processes, combustion, power generation and various aspects of chemical and process engineering.

2,559 citations