A Critical Perspective Of Entropy Generation Minimization In Thermal Analyses And Optimizations

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A Critical Perspective of Entropy Generation Minimization in Thermal Analyses and Optimizations

XueTao Cheng
A Critical Perspective of Entropy Generation Minimization in Thermal Analyses and Optimizations Book PDF

Author : XueTao Cheng
Publisher : Cambridge Scholars Publishing
Page : 163 pages
File Size : 41,9 Mb
Release : 2018-10-29
Category : Science
ISBN : 9781527520530

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A Critical Perspective of Entropy Generation Minimization in Thermal Analyses and Optimizations by XueTao Cheng Pdf

Thermal analyses and optimizations are very ubiquitous and important in academic research and engineering applications. In this field, the entropy generation minimization has been widely used and found to be effective in many cases. Sometimes, it was even used without checking the applicability, and seemed to be a unified theory that could solve all thermal problems. Is this really the case? This book answers this question through detailed theoretical derivations and different numerical examples in heat transfer and heat-work conversion. It shows clearly that the theory has limitations and a definite application scope, beyond which it may provide unreasonable or incorrect results. Therefore, the entropy generation minimization is far from perfect. This book will be of interest to students, researchers and engineers in thermal science and engineering, as it will help the reader to apply the entropy generation minimization correctly.

Entropy Generation Minimization

Adrian Bejan
Entropy Generation Minimization Book PDF

Author : Adrian Bejan
Publisher : CRC Press
Page : 389 pages
File Size : 40,8 Mb
Release : 2013-10-29
Category : Science
ISBN : 9781482239171

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Entropy Generation Minimization by Adrian Bejan Pdf

This book presents the diverse and rapidly expanding field of Entropy Generation Minimization (EGM), the method of thermodynamic optimization of real devices. The underlying principles of the EGM method - also referred to as "thermodynamic optimization," "thermodynamic design," and "finite time thermodynamics" - are thoroughly discussed, and the me

Critique of Constructal Theory

XueTao Cheng
Critique of Constructal Theory Book PDF

Author : XueTao Cheng
Publisher : Cambridge Scholars Publishing
Page : 139 pages
File Size : 48,6 Mb
Release : 2019-09-12
Category : Science
ISBN : 9781527539761

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Critique of Constructal Theory by XueTao Cheng Pdf

Constructal theory has been extensively used to analyze and optimize many different shapes and structures in both living and non-living systems. It is generally considered to be a law that could govern the evolutions of shapes and structures in biology, physics, technology, and social organization. Accordingly, it seems that the constructal method is suitable for designing and analyzing all kinds of shapes and structures in the world. However, in most cases, the details for its applications were not carefully checked, meaning that it was often incorrectly applied, and that many unreasonable or inaccurate results were provided. This book systematically reviews and checks the applications of constructal theory in street design, economics, heat transfer optimization, flow systems, and explanations of natural structures and social phenomena. Every detail of the models, methods, optimizations, applications, results and conclusions is analysed, with careful consideration of theoretical derivations and typical examples. Accordingly, the problems and mistakes in the applications of the theory are directly pointed out and discussed in detail. The abuse and limitation of the constructal approach are also discussed. In many cases, it is shown that the theory has significant flaws and is even not applicable in certain circumstances. As constructal theory is widely used in the analysis and design of shapes and structures, this book will be essential for scientists, researchers, engineers, teachers, postgraduates and undergraduates in the fields of structure analysis, design and optimization in physics, biology, flow dynamics, heat transfer and thermodynamics.

Entransy

XueTao Cheng
Entransy Book PDF

Author : XueTao Cheng
Publisher : Cambridge Scholars Publishing
Page : 159 pages
File Size : 49,7 Mb
Release : 2023-05-25
Category : Science
ISBN : 9781527512740

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Entransy by XueTao Cheng Pdf

In this book, the author introduces an alternative perspective to understand thermal phenomena, the concept of entransy and its relevant principles, applications and extensions, which have been widely used in the analyses and optimizations of many transport processes. The scientific significance and application value of the theory have been clearly demonstrated. The theory is inevitably questioned, and there are even accusations that are not academically valid. These controversies are also introduced and discussed comprehensively. This book is an introduction to the entransy theory; the author has only selected a few cases that are sufficient to show the advantages and necessity of the application of the theory. This book is helpful to the undergraduates, graduates, teachers, engineers, scientists and researchers in thermal science and engineering.

Thermodynamic Optimization of Complex Energy Systems

Adrian Bejan,Eden Mamut
Thermodynamic Optimization of Complex Energy Systems Book PDF

Author : Adrian Bejan,Eden Mamut
Publisher : Springer
Page : 465 pages
File Size : 50,5 Mb
Release : 1999-07-31
Category : Science
ISBN : 9780792357261

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Thermodynamic Optimization of Complex Energy Systems by Adrian Bejan,Eden Mamut Pdf

A comprehensive assessment of the methodologies of thermodynamic optimization, exergy analysis and thermoeconomics, and their application to the design of efficient and environmentally sound energy systems. The chapters are organized in a sequence that begins with pure thermodynamics and progresses towards the blending of thermodynamics with other disciplines, such as heat transfer and cost accounting. Three methods of analysis stand out: entropy generation minimization, exergy (or availability) analysis, and thermoeconomics. The book reviews current directions in a field that is both extremely important and intellectually alive. Additionally, new directions for research on thermodynamics and optimization are revealed.

Advances in Finite Time Thermodynamics

Lingen Chen
Advances in Finite Time Thermodynamics Book PDF

Author : Lingen Chen
Publisher : Nova Publishers
Page : 282 pages
File Size : 48,6 Mb
Release : 2004
Category : Science
ISBN : 1590339142

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Advances in Finite Time Thermodynamics by Lingen Chen Pdf

Over 170 years ago, Sadi Carnot, a French engineer, published his famous article "Reflections on the motive power of fire" and established a new field of science: classical thermodynamics. Since 1985, the scholars in the Naval University of Engineering (from 1949 to 1998) have been making the research work in the field of finite time thermodynamics. This multi-authored book deals with the recent advances of finite time thermodynamics in the Naval University of Engineering. It illustrates how the gap between thermodynamics, heat transfer, and fluid mechanics is bridged. It also illustrates how the gap between physics and engineering is bridged. The readers should find the papers informative and useful for analysis and design of thermodynamic systems with improved performance. The authors hope that this collection of work devoted to finite thermodynamics will provide encouragement for further research in the field.

ECOS 2012 The 25th International Conference on Efficiency, Cost, Optimization and Simulation of Energy Conversion Systems and Processes (Perugia, June 26th-June 29th, 2012)

Umberto Desideri,Enrico Sciubba,Giampaolo Manfrida
ECOS 2012 The 25th International Conference on Efficiency Cost Optimization and Simulation of Energy Conversion Systems and Processes Perugia June 26th June 29th 2012 Book PDF

Author : Umberto Desideri,Enrico Sciubba,Giampaolo Manfrida
Publisher : Firenze University Press
Page : 3218 pages
File Size : 44,5 Mb
Release : 2012
Category : Energy conservation
ISBN : 9788866553229

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ECOS 2012 The 25th International Conference on Efficiency, Cost, Optimization and Simulation of Energy Conversion Systems and Processes (Perugia, June 26th-June 29th, 2012) by Umberto Desideri,Enrico Sciubba,Giampaolo Manfrida Pdf

The 8-volume set contains the Proceedings of the 25th ECOS 2012 International Conference, Perugia, Italy, June 26th to June 29th, 2012. ECOS is an acronym for Efficiency, Cost, Optimization and Simulation (of energy conversion systems and processes), summarizing the topics covered in ECOS: Thermodynamics, Heat and Mass Transfer, Exergy and Second Law Analysis, Process Integration and Heat Exchanger Networks, Fluid Dynamics and Power Plant Components, Fuel Cells, Simulation of Energy Conversion Systems, Renewable Energies, Thermo-Economic Analysis and Optimisation, Combustion, Chemical Reactors, Carbon Capture and Sequestration, Building/Urban/Complex Energy Systems, Water Desalination and Use of Water Resources, Energy Systems- Environmental and Sustainability Issues, System Operation/ Control/Diagnosis and Prognosis, Industrial Ecology.

Nanofluids and Their Engineering Applications

K.R.V. Subramanian,Tubati Nageswara Rao,Avinash Balakrishnan
Nanofluids and Their Engineering Applications Book PDF

Author : K.R.V. Subramanian,Tubati Nageswara Rao,Avinash Balakrishnan
Publisher : CRC Press
Page : 498 pages
File Size : 52,9 Mb
Release : 2019-06-18
Category : Science
ISBN : 9780429886997

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Nanofluids and Their Engineering Applications by K.R.V. Subramanian,Tubati Nageswara Rao,Avinash Balakrishnan Pdf

Nanofluids are solid-liquid composite material consisting of solid nanoparticles suspended in liquid with enhanced thermal properties. This book introduces basic fluid mechanics, conduction and convection in fluids, along with nanomaterials for nanofluids, property characterization, and outline applications of nanofluids in solar technology, machining and other special applications. Recent experiments on nanofluids have indicated significant increase in thermal conductivity compared with liquids without nanoparticles or larger particles, strong temperature dependence of thermal conductivity, and significant increase in critical heat flux in boiling heat transfer, all of which are covered in the book. Key Features Exclusive title focusing on niche engineering applications of nanofluids Contains high technical content especially in the areas of magnetic nanofluids and dilute oxide based nanofluids Feature examples from research applications such as solar technology and heat pipes Addresses heat transfer and thermodynamic features such as efficiency and work with mathematical rigor Focused in content with precise technical definitions and treatment

Entropy Analysis in Thermal Engineering Systems

Yousef Haseli
Entropy Analysis in Thermal Engineering Systems Book PDF

Author : Yousef Haseli
Publisher : Academic Press
Page : 214 pages
File Size : 55,7 Mb
Release : 2019-10-23
Category : Science
ISBN : 9780128191699

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Entropy Analysis in Thermal Engineering Systems by Yousef Haseli Pdf

Entropy Analysis in Thermal Engineering Systems is a thorough reference on the latest formulation and limitations of traditional entropy analysis. Yousef Haseli draws on his own experience in thermal engineering as well as the knowledge of other global experts to explain the definitions and concepts of entropy and the significance of the second law of thermodynamics. The design and operation of systems is also described, as well as an analysis of the relationship between entropy change and exergy destruction in heat conversion and transfer. The book investigates the performance of thermal systems and the applications of the entropy analysis in thermal engineering systems to allow the reader to make clearer design decisions to maximize the energy potential of a thermal system. Includes applications of entropy analysis methods in thermal power generation systems Explains the relationship between entropy change and exergy destruction in an energy conversion/transfer process Guides the reader to accurately utilize entropy methods for the analysis of system performance to improve efficiency

Advances in New Heat Transfer Fluids

Alina Adriana Minea
Advances in New Heat Transfer Fluids Book PDF

Author : Alina Adriana Minea
Publisher : CRC Press
Page : 661 pages
File Size : 42,7 Mb
Release : 2017-03-16
Category : Science
ISBN : 9781315351223

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Advances in New Heat Transfer Fluids by Alina Adriana Minea Pdf

Heat transfer enhancement has seen rapid development and widespread use in both conventional and emerging technologies. Improvement of heat transfer fluids requires a balance between experimental and numerical work in nanofluids and new refrigerants. Recognizing the uncertainties in development of new heat transfer fluids, Advances in New Heat Transfer Fluids: From Numerical to Experimental Techniques contains both theoretical and practical coverage.

Energy Optimization in Process Systems

Stanislaw Sieniutycz,Jacek Jezowski
Energy Optimization in Process Systems Book PDF

Author : Stanislaw Sieniutycz,Jacek Jezowski
Publisher : Elsevier
Page : 768 pages
File Size : 43,9 Mb
Release : 2009-05-06
Category : Science
ISBN : 008091442X

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Energy Optimization in Process Systems by Stanislaw Sieniutycz,Jacek Jezowski Pdf

Despite the vast research on energy optimization and process integration, there has to date been no synthesis linking these together. This book fills the gap, presenting optimization and integration in energy and process engineering. The content is based on the current literature and includes novel approaches developed by the authors. Various thermal and chemical systems (heat and mass exchangers, thermal and water networks, energy converters, recovery units, solar collectors, and separators) are considered. Thermodynamics, kinetics and economics are used to formulate and solve problems with constraints on process rates, equipment size, environmental parameters, and costs. Comprehensive coverage of dynamic optimization of energy conversion systems and separation units is provided along with suitable computational algorithms for deterministic and stochastic optimization approaches based on: nonlinear programming, dynamic programming, variational calculus, Hamilton-Jacobi-Bellman theory, Pontryagin's maximum principles, and special methods of process integration. Integration of heat energy and process water within a total site is shown to be a significant factor reducing production costs, in particular costs of utilities for the chemical industry. This integration involves systematic design and optimization of heat exchangers and water networks (HEN and WN). After presenting basic, insight-based Pinch Technology, systematic, optimization-based sequential and simultaneous approaches to design HEN and WN are described. Special consideration is given to the HEN design problem targeting stage, in view of its importance at various levels of system design. Selected, advanced methods for HEN synthesis and retrofit are presented. For WN design a novel approach based on stochastic optimization is described that accounts for both grassroot and revamp design scenarios. Presents a unique synthesis of energy optimization and process integration that applies scientific information from thermodynamics, kinetics, and systems theory Discusses engineering applications including power generation, resource upgrading, radiation conversion and chemical transformation, in static and dynamic systems Clarifies how to identify thermal and chemical constraints and incorporate them into optimization models and solutions

Energy Optimization in Process Systems and Fuel Cells

Stanislaw Sieniutycz,Jacek Jezowski
Energy Optimization in Process Systems and Fuel Cells Book PDF

Author : Stanislaw Sieniutycz,Jacek Jezowski
Publisher : Newnes
Page : 818 pages
File Size : 43,8 Mb
Release : 2013-02-14
Category : Technology & Engineering
ISBN : 9780080982274

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Energy Optimization in Process Systems and Fuel Cells by Stanislaw Sieniutycz,Jacek Jezowski Pdf

Energy Optimization in Process Systems and Fuel Cells, Second Edition covers the optimization and integration of energy systems, with a particular focus on fuel cell technology. With rising energy prices, imminent energy shortages, and increasing environmental impacts of energy production, energy optimization and systems integration is critically important. The book applies thermodynamics, kinetics and economics to study the effect of equipment size, environmental parameters, and economic factors on optimal power production and heat integration. Author Stanislaw Sieniutycz, highly recognized for his expertise and teaching, shows how costs can be substantially reduced, particularly in utilities common in the chemical industry. This second edition contains substantial revisions, with particular focus on the rapid progress in the field of fuel cells, related energy theory, and recent advances in the optimization and control of fuel cell systems. New information on fuel cell theory, combined with the theory of flow energy systems, broadens the scope and usefulness of the book Discusses engineering applications including power generation, resource upgrading, radiation conversion, and chemical transformation in static and dynamic systems Contains practical applications of optimization methods that help solve the problems of power maximization and optimal use of energy and resources in chemical, mechanical, and environmental engineering

Developments in Heat Transfer

Marco Aurelio Dos Santos Bernardes
Developments in Heat Transfer Book PDF

Author : Marco Aurelio Dos Santos Bernardes
Publisher : BoD – Books on Demand
Page : 704 pages
File Size : 54,9 Mb
Release : 2011-09-15
Category : Technology & Engineering
ISBN : 9789533075693

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Developments in Heat Transfer by Marco Aurelio Dos Santos Bernardes Pdf

This book comprises heat transfer fundamental concepts and modes (specifically conduction, convection and radiation), bioheat, entransy theory development, micro heat transfer, high temperature applications, turbulent shear flows, mass transfer, heat pipes, design optimization, medical therapies, fiber-optics, heat transfer in surfactant solutions, landmine detection, heat exchangers, radiant floor, packed bed thermal storage systems, inverse space marching method, heat transfer in short slot ducts, freezing an drying mechanisms, variable property effects in heat transfer, heat transfer in electronics and process industries, fission-track thermochronology, combustion, heat transfer in liquid metal flows, human comfort in underground mining, heat transfer on electrical discharge machining and mixing convection. The experimental and theoretical investigations, assessment and enhancement techniques illustrated here aspire to be useful for many researchers, scientists, engineers and graduate students.

Advances in Transport Phenomena 2011

Liqiu Wang
Advances in Transport Phenomena 2011 Book PDF

Author : Liqiu Wang
Publisher : Springer Science & Business Media
Page : 169 pages
File Size : 45,9 Mb
Release : 2013-10-07
Category : Science
ISBN : 9783319017938

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Advances in Transport Phenomena 2011 by Liqiu Wang Pdf

This new volume of the annual review “Advances in Transport Phenomena” series contains three in-depth review articles on the microfluidic fabrication of vesicles, the dielectrophoresis field-flow fractionation for continuous-flow separation of particles and cells in microfluidic devices, and the thermodynamic analysis and optimization of heat exchangers, respectively.

Porous and Complex Flow Structures in Modern Technologies

Adrian Bejan,Ibrahim Dincer,Sylvie Lorente,Antonio Miguel,Heitor Reis
Porous and Complex Flow Structures in Modern Technologies Book PDF

Author : Adrian Bejan,Ibrahim Dincer,Sylvie Lorente,Antonio Miguel,Heitor Reis
Publisher : Springer Science & Business Media
Page : 406 pages
File Size : 47,9 Mb
Release : 2013-03-09
Category : Technology & Engineering
ISBN : 9781475742213

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Porous and Complex Flow Structures in Modern Technologies by Adrian Bejan,Ibrahim Dincer,Sylvie Lorente,Antonio Miguel,Heitor Reis Pdf

Porous and Complex Flow Structures in Modern Technologies represents a new approach to the field, considering the fundamentals of porous media in terms of the key roles played by these materials in modern technology. Intended as a text for advanced undergraduates and as a reference for practicing engineers, the book uses the physics of flows in porous materials to tie together a wide variety of important issues from such fields as biomedical engineering, energy conversion, civil engineering, electronics, chemical engineering, and environmental engineering. Thus, for example, flows of water and oil through porous ground play a central role in energy exploration and recovery (oil wells, geothermal fluids), energy conversion (effluents from refineries and power plants), and environmental engineering (leachates from waste repositories). Similarly, the demands of miniaturization in electronics and in biomedical applications are driving research into the flow of heat and fluids through small-scale porous media (heat exchangers, filters, gas exchangers). Filters, catalytic converters, the drying of stored grains, and a myriad of other applications involve flows through porous media. By providing a unified theoretical framework that includes not only the traditional homogeneous and isotropic media but also models in which the assumptions of representative elemental volumes or global thermal equilibrium fail, the book provides practicing engineers the tools they need to analyze complex situations that arise in practice. This volume includes examples, solved problems and an extensive glossary of symbols.