Phase Change With Convection Modelling And Validation
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Phase Change With Convection Modelling And Validation
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Author : Tomasz A. Kowalewski
language : en
Publisher: Springer
Release Date : 2014-05-04
Phase Change With Convection Modelling And Validation written by Tomasz A. Kowalewski and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014-05-04 with Technology & Engineering categories.
Solid-liquid phase change phenomena are present in a large number of industrial applications and natural processes like material processing, crystal growth, heat storage, icebergs or magma eruption. Numerical modelling of strongly non-linear, moving boundary, thermal and fluid flow problems is a challenging task. The book gives a review of modelling methods of phase change problems, numerical and experimental methods used in the field. It combines experience of theoreticians with those using numerical tools for modelling problems of solidification. It offers researchers and engineers knowledge and critical assessment of numerical approaches, physical models and validation methods used in the field of modelling industrial problems. The book collects in an unique way most recent knowledge on modelling of phase change problems, from micro scale problems and the interface (growth of dendrites) to macro scale models.
Modeling Of The Phase Change Material Of A Hybrid Storage Using The Finite Element Method
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Author : Lukas Kasper
language : en
Publisher: TU Wien Academic Press
Release Date : 2020-09-03
Modeling Of The Phase Change Material Of A Hybrid Storage Using The Finite Element Method written by Lukas Kasper and has been published by TU Wien Academic Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-09-03 with Technology & Engineering categories.
To increase the efficiency of energy-intensive industrial processes, thermal energy storages can offer new possibilities. A novel approach is investigated in the project HyStEPs. In this concept, containers filled with PCM are placed at the shell surface of a Ruths steam storage, to increase storage efficiency. In this work, a two-dimensional model using the finite element method is developed to simulate the PCM of the hybrid storage as designed in the HyStEPs project. The apparent heat capacity method is applied in a MATLAB implementation, considering heat transfer by both conduction and natural convection. This successfully validated code can handle any desired layout of materials arranged on a rectangular domain. Furthermore, a parameter study of different dimensions and orientations of the PCM cavity was conducted. The impact of natural convection was found to lead to significantly varying behaviour of the studied cavities with different orientation during the charging process, while it was found to be negligible during the discharging process.
Computational Thermo Fluid Dynamics
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Author : Petr A. Nikrityuk
language : en
Publisher: John Wiley & Sons
Release Date : 2011-09-19
Computational Thermo Fluid Dynamics written by Petr A. Nikrityuk and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011-09-19 with Technology & Engineering categories.
Combining previously unconnected computational methods, this monograph discusses the latest basic schemes and algorithms for the solution of fluid, heat and mass transfer problems coupled with electrodynamics. It presents the necessary mathematical background of computational thermo-fluid dynamics, the numerical implementation and the application to real-world problems. Particular emphasis is placed throughout on the use of electromagnetic fields to control the heat, mass and fluid flows in melts and on phase change phenomena during the solidification of pure materials and binary alloys. However, the book provides much more than formalisms and algorithms; it also stresses the importance of good, feasible and workable models to understand complex systems, and develops these in detail. Bringing computational fluid dynamics, thermodynamics and electrodynamics together, this is a useful source for materials scientists, PhD students, solid state physicists, process engineers and mechanical engineers, as well as lecturers in mechanical engineering.
Recent Advances In Computational Engineering
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Author : Michael Schäfer
language : en
Publisher: Springer
Release Date : 2018-08-21
Recent Advances In Computational Engineering written by Michael Schäfer and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-08-21 with Mathematics categories.
This book comprises the proceedings of the 4th International Conference on Computational Engineering (ICCE 2017), held in Darmstadt, Germany on September 28-29, 2017. The conference is intended to provide an interdisciplinary meeting place for researchers and practitioners working on computational methods in all disciplines of engineering, applied mathematics and computer science. The aims of the conference are to discuss the state of the art in this challenging field, exchange experiences, develop promising perspectives for future research and initiate further cooperation. Computational Engineering is a modern and multidisciplinary science for computer-based modeling, simulation, analysis, and optimization of complex engineering applications and natural phenomena. The book contains an overview of selected approaches from numerics and optimization of Partial Differential Equations as well as uncertainty quantification techniques, typically in multiphysics environments. Where possible, application cases from engineering are integrated. The book will be of interest to researchers and practitioners of Computational Engineering, Applied Mathematics, Engineering Sciences and Computer Science.
Thermal Energy Storage
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Author : Ibrahim Dinçer
language : en
Publisher: John Wiley & Sons
Release Date : 2011-06-24
Thermal Energy Storage written by Ibrahim Dinçer and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011-06-24 with Science categories.
The ability of thermal energy storage (TES) systems to facilitate energy savings, renewable energy use and reduce environmental impact has led to a recent resurgence in their interest. The second edition of this book offers up-to-date coverage of recent energy efficient and sustainable technological methods and solutions, covering analysis, design and performance improvement as well as life-cycle costing and assessment. As well as having significantly revised the book for use as a graduate text, the authors address real-life technical and operational problems, enabling the reader to gain an understanding of the fundamental principles and practical applications of thermal energy storage technology. Beginning with a general summary of thermodynamics, fluid mechanics and heat transfer, this book goes on to discuss practical applications with chapters that include TES systems, environmental impact, energy savings, energy and exergy analyses, numerical modeling and simulation, case studies and new techniques and performance assessment methods.
Fundamentals Of Heat And Mass Transfer 6th Ed
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Author : Incropera
language : en
Publisher:
Release Date : 2010-08-01
Fundamentals Of Heat And Mass Transfer 6th Ed written by Incropera and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010-08-01 with categories.
Market_Desc: Mechanical, Chemical and Aerospace Engineers and Students and Instructors of Engineering. Special Features: · Covers new applications in bioengineering, fuel cells, and nanotechnology. · Incorporates 220 new problems to help reinforce key concepts. · Presents revised and streamlined content, including the removal of more advanced topics. · Explains how to develop representative models of real processes and systems and draw conclusions concerning process/systems design or performance from the attendant analysis. · Integrates extensive use of the first law of thermodynamics. About The Book: This bestselling book in the field provides a complete introduction to the physical origins of heat and mass transfer. Noted for its crystal clear presentation and easy-to-follow problem solving methodology, Incropera and Dewitt's systematic approach to the first law develops reader confidence in using this essential tool for thermal analysis. Readers will learn the meaning of the terminology and physical principles of heat transfer as well as how to use requisite inputs for computing heat transfer rates and/or material temperatures.
Thermal Energy Storage
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Author : Ibrahim Dincer
language : en
Publisher: John Wiley & Sons
Release Date : 2002-04-29
Thermal Energy Storage written by Ibrahim Dincer and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2002-04-29 with Science categories.
During the last two decades many research and development activities related to energy have concentrated on efficient energy use and energy savings and conservation. In this regard, Thermal Energy Storage (TES) systems can play an important role, as they provide great potential for facilitating energy savings and reducing environmental impact. Thermal storage has received increasing interest in recent years in terms of its applications, and the enormous potential it offers both for more effective use of thermal equipment and for economic, large-scale energy substitutions. Indeed, TES appears to provide one of the most advantageous solutions for correcting the mismatch that often occurs between the supply and demand of energy. Despite this increase in attention, no book is currently available which comprehensively covers TES. Presenting contributions from prominent researchers and scientists, this book is primarily concerned with TES systems and their applications. It begins with a brief summary of general aspects of thermodynamics, fluid mechanics and heat transfer, and then goes on to discuss energy storage technologies, environmental aspects of TES, energy and exergy analyses, and practical applications. Furthermore, this book provides coverage of the theoretical, experimental and numerical techniques employed in the field of thermal storage. Numerous case studies and illustrative examples are included throughout. Some of the unique features of this book include: * State-of-the art descriptions of many facets of TES systems and applications * In-depth coverage of exergy analysis and thermodynamic optimization of TES systems * Extensive new material on TES technologies, including advances due to innovations in sensible- and latent-energy storage * Key chapters on environmental issues, sustainable development and energy savings * Extensive coverage of practical aspects of the design, evaluation, selection and implementation of TES systems * Wide coverage of TES-system modelling, ranging in level from elementary to advanced * Abundant design examples, case studies and references In short, this book forms a valuable reference resource for practicing engineers and researchers, and a research-oriented text book for advanced undergraduate and graduate students of various engineering disciplines. Instructors will find that its breadth and structure make it an ideal core text for TES and related courses.
Cfd Applications In Nuclear Engineering
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Author : Wenxi Tian
language : en
Publisher: Frontiers Media SA
Release Date : 2023-08-21
Cfd Applications In Nuclear Engineering written by Wenxi Tian and has been published by Frontiers Media SA this book supported file pdf, txt, epub, kindle and other format this book has been release on 2023-08-21 with Technology & Engineering categories.
High fidelity nuclear reactor thermal hydraulic simulations are a hot research topic in the development of nuclear engineering technology. The three-dimensional Computational Fluid Dynamics (CFD) and Computational Multi-phase Fluid Dynamics (CMFD) methods have attracted significant attention in predicting single-phase and multi-phase flows under steady-state or transient scenarios in the field of nuclear reactor engineering. Compared with three-dimensional thermal hydraulic methods, the traditional one-dimensional system analysis method contains inherent defects in the required accuracy and spatial resolution for a number of important nuclear reactor thermal-hydraulic phenomena. At present the CFD method has been widely adopted in the nuclear industry, across both light water reactors and liquid metal cooled fast reactors, providing an effective solution for complex issues of thermal hydraulic analysis. However, the CFD method employs empirical models for turbulence simulation, heat transfer, multi-phase interaction and chemical reactions. Such models must be validated before they can be used with confidence in nuclear reactor applications. In addition, user practice guidelines play a critical role in achieving reliable results from CFD simulations.
Mathematical Models Of Convection
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Author : Victor K. Andreev
language : en
Publisher: Walter de Gruyter
Release Date : 2012-07-30
Mathematical Models Of Convection written by Victor K. Andreev and has been published by Walter de Gruyter this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-07-30 with Science categories.
Phenomena of convection are abundant in nature as well as in industry. This volume addresses the subject of convection from the point of view of both, theory and application. While the first three chapters provide a refresher on fluid dynamics and heat transfer theory, the rest of the book describes the modern developments in theory. Thus it brings the reader to the "front" of the modern research. This monograph provides the theoretical foundation on a topic relevant to metallurgy, ecology, meteorology, geo-and astrophysics, aerospace industry, chemistry, crystal physics, and many other fields.
Statistical Validation Of Engineering And Scientific Models
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Author : Richard Gene Hills
language : en
Publisher:
Release Date : 2003
Statistical Validation Of Engineering And Scientific Models written by Richard Gene Hills and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2003 with Computer software categories.