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Author: Sven Erik Jørgensen Publisher: WIT Press ISBN: 1845640594 Category : Science Languages : en Pages : 225
Book Description
Exergy is the measurement of the amount of work capacity i.e. the amount of energy that can do work. The author applies this concept to ecology, where it can be used as an ecological indicator for ecosystem health assessment and this is presented in the book with illustrative examples. In addition, the question of how it is possible to define a special ecological exergy concept to calculate the exergy for models of ecosystems is covered. The use of exergy and an introduced fourth law of thermodynamics make it possible to understand the ecosystem reactions and how the ecosystem can grow in three different forms - biomass, complexity of network and information. From this analysis, it is clear why ecosystems are sustainable systems and what characteristic properties ecosystems have to ensure that sustainability. A parallel from ecosystems to society makes it possible to formulate the same rules (laws) for society. The concept of exergy as a health indicator measuring the degree of sustainability of society can also be used. Examples will be applied to illustrate the application of exergy and the deduced ecological rules (laws) for understanding the society.
Author: Sven Erik Jørgensen Publisher: WIT Press ISBN: 1845640594 Category : Science Languages : en Pages : 225
Book Description
Exergy is the measurement of the amount of work capacity i.e. the amount of energy that can do work. The author applies this concept to ecology, where it can be used as an ecological indicator for ecosystem health assessment and this is presented in the book with illustrative examples. In addition, the question of how it is possible to define a special ecological exergy concept to calculate the exergy for models of ecosystems is covered. The use of exergy and an introduced fourth law of thermodynamics make it possible to understand the ecosystem reactions and how the ecosystem can grow in three different forms - biomass, complexity of network and information. From this analysis, it is clear why ecosystems are sustainable systems and what characteristic properties ecosystems have to ensure that sustainability. A parallel from ecosystems to society makes it possible to formulate the same rules (laws) for society. The concept of exergy as a health indicator measuring the degree of sustainability of society can also be used. Examples will be applied to illustrate the application of exergy and the deduced ecological rules (laws) for understanding the society.
Author: Ibrahim Dincer Publisher: Newnes ISBN: 0080970907 Category : Technology & Engineering Languages : en Pages : 571
Book Description
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 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
Author: Wojciech Stanek Publisher: Springer ISBN: 3319486497 Category : Business & Economics Languages : en Pages : 511
Book Description
This book examines ways of assessing the rational management of nonrenewable resources. Integrating numerous methods, it systematically exposes the strengths of exergy analysis in resources management. Divided into two parts, the first section provides the theoretical background to assessment methods, while the second section provides practical application examples. The topics covered in detail include the theory of exergy cost and thermo-ecological cost, cumulative calculus and life cycle evaluation. This book serves as a valuable resource for researchers looking to investigate a range of advanced thermodynamic assessments of the influence of production processes on the depletion of nonrenewable resources.
Author: Wojciech Stanek Publisher: Academic Press ISBN: 0128131438 Category : Nature Languages : en Pages : 228
Book Description
Thermo-ecology: Exergy as a Measure of Sustainability integrates thermo-ecology and exergy replacement cost as a new and original tool called thermo-ecology cost, or TEC. This tool allows for a more inclusive measurement of the impacts of using renewable and non-renewable resources by including the thermodynamics law in decision-making and presenting applications of this tool across industries and lifecycle assessments. It includes ways to investigate these effects more effectively by combining these critical aspects. This combination has emerged as a valuable decision-support tool for policymakers and the industry as they seek to evaluate the impacts of a product or process. Walks through what Thermo-Ecology Cost (TEC) is and why it gives a more holistic assessment when calculating the costs vs benefits of utilizing a natural resource Provides a new and more efficient way to measure and evaluate the sustainability of resources Includes: TEC calculation examples to explain the TEC theory as well as to help readers prepare their own analyses devoted to exergo-ecological applications across industries including energy production and waste management Demonstrates the potential of TEC usage for applications like ecological taxes proportional on TEC
Author: Jan Szargut Publisher: WIT Press ISBN: 1853127531 Category : Science Languages : en Pages : 189
Book Description
The exergy method makes it possible to detect and quantify the possibilities of improving thermal and chemical processes and systems. The introduction of the concept thermo-ecological cost (cumulative consumption of non-renewable natural exergy resources) generated large application possibilities of exergy in ecology. This book contains a short presentation on the basic principles of exergy analysis and discusses new achievements in the field over the last 15 years. One of the most important issues considered by the distinguished author is the economy of non-renewable natural exergy. Previously discussed only in scientific journals, other important new problems highlighted include: calculation of the chemical exergy of all the stable chemical elements, global natural and anthropogenic exergy losses, practical guidelines for improvement of the thermodynamic imperfection of thermal processes and systems, development of the determination methods of partial exergy losses in thermal systems, evaluation of the natural mineral capital of the Earth, and the application of exergy for the determination of a pro-ecological tax.A basic knowledge of thermodynamics is assumed, and the book is therefore most appropriate for graduate students and engineers working in the field of energy and ecological management.
Author: Masanori Shukuya Publisher: Springer Science & Business Media ISBN: 1447145739 Category : Business & Economics Languages : en Pages : 374
Book Description
Many people, professionals and non-professionals alike, recognize that it is of critical importance to solve global energy and environmental issues. For this purpose, it is essential to have a scientific understanding of what is meant by the “energy” issue is and the “environmental” issue. The concept of “exergy” is a scientific concept that exactly fits. The concept of ‘energy’ is a scientifically-well established concept, namely ‘to be conserved’. Then the question is what is really consumed. Exergy: Theory and Applications in the Built Environment is dedicated to answer this fundamental question by discussing the theory of “exergy” and by demonstrating its use extensively to describe a variety of systems in particular for built-environmental conditioning. Our immediate environmental space works within the flow of energy and matter in an “exergy-entropy” process, and the built environment can be designed with these energy & environmental issues in mind. Exergy: Theory and Applications in the Built Environment introduces readers who are not familiar with thermodynamics to the concept of exergy with a variety of discussion on the built-environmental space such as heating, cooling, lighting, and others. Readers, including students, researchers, planners, architects and engineers, will obtain a better picture of a sustainable built-environment.
Author: Søren Nors Nielsen Publisher: CRC Press ISBN: 9781032474496 Category : Languages : en Pages : 0
Book Description
Analyzing the Danish island of Samsø, this book explains sustainability through a biogeophysical lens of how to best use Earth's limited resources to achieve true sustainability. The methods used derive from the thermodynamic functions of exergy. The exergy-based approach is an important tool for monitoring the indicators of sustainability.
Author: S.E. Jorgensen Publisher: Elsevier ISBN: 9780080441672 Category : Science Languages : en Pages : 388
Book Description
The book presents a consistent and complete ecosystem theory based on thermodynamic concepts. The first chapters are devoted to an interpretation of the first and second law of thermodynamics in ecosystem context. Then Prigogine's use of far from equilibrium thermodynamic is used on ecosystems to explain their reactions to perturbations. The introduction of the concept exergy makes it possible to give a more profound and comprehensive explanation of the ecosystem's reactions and growth-patterns. A tentative fourth law of thermodynamic is formulated and applied to facilitate these explanations. The trophic chain, the global energy and radiation balance and pattern and the reactions of ecological networks are all explained by the use of exergy. Finally, it is discussed how the presented theory can be applied more widely to explain ecological observations and rules, to assess ecosystem health and to develop ecological models.
Author: Søren Nors Nielsen Publisher: CRC Press ISBN: 100006137X Category : Nature Languages : en Pages : 203
Book Description
Analyzing the self-sufficient Danish island of Samsø, this book explains sustainability through a bio-geophysical understanding of how to best use society’s limited resources to achieve true sustainability. The method used derives from the thermodynamic function of exergy. By analyzing exergy flows and establishing a system for evaluating the energy and the materials used in a society, the author creates a platform for monitoring certain indicators of sustainability. These indicators inform readers about the actions that must be taken and the time frames for achieving sustainability goals. The exergy-based approach is an important tool for carrying out such an analysis because it Focuses on several key thermodynamic concepts and the usefulness of exergy analysis for evaluating sustainability Explains sustainability by implementing thermodynamic laws to societal consumption and the use of resources Discusses new methods that integrate energy and material fluxes and evaluates them against each other Provides direct indicators for finding the largest problems/obstacles and deciding where measures should be taken Includes instructions on how to establish an accounting system for evaluating the energy and the materials used in a society This book is aimed for professionals, researchers, and students working on nature conservation and environmental management projects related to sustainability.
Author: Sven Erik Jørgensen
Author: Sven Erik Jørgensen
Author: Sven Erik J©ırgensen
Author: Ibrahim Dincer
Author: Wojciech Stanek
Author: Wojciech Stanek
Author: Jan Szargut
Author: Masanori Shukuya
Author: Søren Nors Nielsen
Author: S.E. Jorgensen
Author: Søren Nors Nielsen