Author : Adrian Bejan
Publisher :
Page : 272 pages
File Size : 44,25 MB
Release : 1994
Category : Science
ISBN :
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.
Author : Adrian Bejan
Publisher : CRC Press
Page : 389 pages
File Size : 33,21 MB
Release : 2013-10-29
Category : Science
ISBN : 1482239175
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
Author : J.S. Shiner
Publisher : Springer Science & Business Media
Page : 253 pages
File Size : 40,13 MB
Release : 2005-11-30
Category : Science
ISBN : 0306469324
Entropy and entropy generation play essential roles in our understanding of many diverse phenomena ranging from cosmology to biology. Their importance is manifest in areas of immediate practical interest such as the provision of global energy as well as in others of a more fundamental flavour such as the source of order and complexity in nature. They also form the basis of most modern formulations of both equilibrium and nonequilibrium thermodynamics. Today much progress is being made in our understanding of entropy and entropy generation in both fundamental aspects and application to concrete problems. The purpose of this volume is to present some of these recent and important results in a manner that not only appeals to the entropy specialist but also makes them accessible to the nonspecialist looking for an overview of the field. This book contains fourteen contributions by leading scientists in their fields. The content covers such topics as quantum thermodynamics, nonlinear processes, gravitational and irreversible thermodynamics, the thermodynamics of Taylor dispersion, higher order transport, the mesoscopic theory of liquid crystals, simulated annealing, information and biological aspects, global energy, photovoltaics, heat and mass transport and nonlinear electrochemical systems. Audience: This work will be of value to physicists, chemists, biologists and engineers interested in the theory and applications of entropy and its generation.
Author : National Aeronautics and Space Administration (NASA)
Publisher : Createspace Independent Publishing Platform
Page : 32 pages
File Size : 47,34 MB
Release : 2018-05-31
Category :
ISBN : 9781720506652
The results of the entropy generation and availability energy loss analysis under conditions of oscillating pressure and oscillating helium gas flow in two Massachusetts Institute of Technology (MIT) test rigs piston-cylinder and piston-cylinder-heat exchanger are presented. Two solution domains, the gas spring (single-space) in the piston-cylinder test rig and the gas spring + heat exchanger (two-space) in the piston-cylinder-heat exchanger test rig are of interest. Sage and CFD-ACE+ commercial numerical codes are used to obtain 1-D and 2-D computer models, respectively, of each of the two solution domains and to simulate the oscillating gas flow and heat transfer effects in these domains. Second law analysis is used to characterize the entropy generation and availability energy losses inside the two solution domains. Internal and external entropy generation and availability energy loss results predicted by Sage and CFD-ACE+ are compared. Thermodynamic loss analysis of simple systems such as the MIT test rigs are often useful to understand some important features of complex pattern forming processes in more complex systems like the Stirling engine. This study is aimed at improving numerical codes for the prediction of thermodynamic losses via the development of a loss post-processor. The incorporation of loss post-processors in Stirling engine numerical codes will facilitate Stirling engine performance optimization. Loss analysis using entropy-generation rates due to heat and fluid flow is a relatively new technique for assessing component performance. It offers a deep insight into the flow phenomena, allows a more exact calculation of losses than is possible with traditional means involving the application of loss correlations and provides an effective tool for improving component and overall system performance.Ebiana, Asuquo B. and Savadekar, Rupesh T. and Patel, Kaushal V.Glenn Research CenterCOMPUTATIONAL FLUID DYNAMICS; ENERGY DISSIPATION; ENTROPY; GAS FLOW; S
Author : XueTao Cheng
Publisher : Cambridge Scholars Publishing
Page : 163 pages
File Size : 16,63 MB
Release : 2019
Category : Entropy
ISBN : 9781527518179
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.
Author : Majid Siavashi
Publisher :
Page : 172 pages
File Size : 40,17 MB
Release : 2017-06-03
Category :
ISBN : 9783330084407
Author : Nasa Technical Reports Server (Ntrs)
Publisher : BiblioGov
Page : 34 pages
File Size : 17,91 MB
Release : 2013-06
Category :
ISBN : 9781289146856
The results of the entropy generation and availability energy loss analysis under conditions of oscillating pressure and oscillating helium gas flow in two Massachusetts Institute of Technology (MIT) test rigs piston-cylinder and piston-cylinder-heat exchanger are presented. Two solution domains, the gas spring (single-space) in the piston-cylinder test rig and the gas spring ] heat exchanger (two-space) in the piston-cylinder-heat exchanger test rig are of interest. Sage and CFD-ACE+ commercial numerical codes are used to obtain 1-D and 2-D computer models, respectively, of each of the two solution domains and to simulate the oscillating gas flow and heat transfer effects in these domains. Second law analysis is used to characterize the entropy generation and availability energy losses inside the two solution domains. Internal and external entropy generation and availability energy loss results predicted by Sage and CFD-ACE+ are compared. Thermodynamic loss analysis of simple systems such as the MIT test rigs are often useful to understand some important features of complex pattern forming processes in more complex systems like the Stirling engine. This study is aimed at improving numerical codes for the prediction of thermodynamic losses via the development of a loss post-processor. The incorporation of loss post-processors in Stirling engine numerical codes will facilitate Stirling engine performance optimization. Loss analysis using entropy-generation rates due to heat and fluid flow is a relatively new technique for assessing component performance. It offers a deep insight into the flow phenomena, allows a more exact calculation of losses than is possible with traditional means involving the application of loss correlations and provides an effective tool for improving component and overall system performance.
Author : Jovan Mitrovic
Publisher : BoD – Books on Demand
Page : 602 pages
File Size : 26,79 MB
Release : 2012-03-09
Category : Technology & Engineering
ISBN : 9535102788
Selecting and bringing together matter provided by specialists, this project offers comprehensive information on particular cases of heat exchangers. The selection was guided by actual and future demands of applied research and industry, mainly focusing on the efficient use and conversion energy in changing environment. Beside the questions of thermodynamic basics, the book addresses several important issues, such as conceptions, design, operations, fouling and cleaning of heat exchangers. It includes also storage of thermal energy and geothermal energy use, directly or by application of heat pumps. The contributions are thematically grouped in sections and the content of each section is introduced by summarising the main objectives of the encompassed chapters. The book is not necessarily intended to be an elementary source of the knowledge in the area it covers, but rather a mentor while pursuing detailed solutions of specific technical problems which face engineers and technicians engaged in research and development in the fields of heat transfer and heat exchangers.
Author : Henning Struchtrup
Publisher : Springer Nature
Page : 712 pages
File Size : 42,58 MB
Release : 2024
Category : Chemistry, Technical
ISBN : 303160556X
This comprehensive textbook covers engineering thermodynamics from beginner to advanced level. The presentation is concise, with material for about three full-term university courses on 700 pages, without compromising breadth or depth. First and second law of thermodynamics are developed from everyday observations with accessible and rational arguments. The laws of thermodynamics are applied to a multitude of systems and processes, from simple equilibration processes, over steam and gas power cycles, refrigerators and heat pumps, to chemical systems including fuel cells. Entropy and the second law are emphasized throughout, with focus on irreversible processes and work loss. Insightful development of theory is accompanied by detailed solutions of example problems, which teach the required technical skills while giving insight into the multitude of thermodynamic processes and applications. About 550 end-of-chapter problems highlight all important concepts and processes.
Author : Taufiq Nur
Publisher :
Page : 242 pages
File Size : 29,27 MB
Release : 2007
Category : Fluid dynamics
ISBN :
