thermal measurements and inverse techniques heat transfer

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Thermal Measurements And Inverse Techniques

Author : Helcio R.B. Orlande
ISBN : 9781439845561
Genre : Science
File Size : 67. 34 MB
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With its uncommon presentation of instructional material regarding mathematical modeling, measurements, and solution of inverse problems, Thermal Measurements and Inverse Techniques is a one-stop reference for those dealing with various aspects of heat transfer. Progress in mathematical modeling of complex industrial and environmental systems has enabled numerical simulations of most physical phenomena. In addition, recent advances in thermal instrumentation and heat transfer modeling have improved experimental procedures and indirect measurements for heat transfer research of both natural phenomena and manmade applications. These new resources and methods help theoretical, computational, and experimental researchers synergistically interact to better understand the physical phenomena being studied. This book explores how inverse analysis can be used to increase understanding of interactions between technological systems and nature, by bridging the gap between data derived from measurements and information from theoretical predictions. Assembled in three parts—Modeling and Measurements in Heat Transfer, Inverse Heat Transfer Problems, and Applications—this self-contained resource: Explores theoretical background and examples Outlines practical applications, including sample test cases Presents inverse techniques to estimate spatially and time-varying functions (such as heat sources, fluxes, and thermophysical properties), as well as constant parameters in heat transfer problems Written by international experts, this book assumes basic heat transfer knowledge, presenting a balanced approach suitable for advanced undergraduates and graduate students, as well as practicing engineers and academic and industrial researchers. With coverage of modeling at the micro- and nanoscales, this book covers classic and novel approaches to help readers understand and solve heat transfer problems of all kinds.

Inverse Heat Transfer

Author : M.Necat Ozisik
ISBN : 9781351436397
Genre : Science
File Size : 64. 5 MB
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This book introduces the fundamental concepts of inverse heat transfer problems. It presents in detail the basic steps of four techniques of inverse heat transfer protocol, as a parameter estimation approach and as a function estimation approach. These techniques are then applied to the solution of the problems of practical engineering interest involving conduction, convection, and radiation. The text also introduces a formulation based on generalized coordinates for the solution of inverse heat conduction problems in two-dimensional regions.

Heat Transfer In Polymer Composite Materials

Author : Nicolas Boyard
ISBN : 9781119285090
Genre : Science
File Size : 23. 18 MB
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This book addresses general information, good practices and examples about thermo-physical properties, thermo-kinetic and thermo-mechanical couplings, instrumentation in thermal science, thermal optimization and infrared radiation.

Theory And Applications Of Heat Transfer In Humans

Author : Devashish Shrivastava
ISBN : 9781119127314
Genre : Science
File Size : 30. 88 MB
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An authoritative guide to theory and applications of heat transfer in humans Theory and Applications of Heat Transfer in Humans 2V Set offers a reference to the field of heating and cooling of tissue, and associated damage. The author—a noted expert in the field—presents, in this book, the fundamental physics and physiology related to the field, along with some of the recent applications, all in one place, in such a way as to enable and enrich both beginner and advanced readers. The book provides a basic framework that can be used to obtain ‘decent’ estimates of tissue temperatures for various applications involving tissue heating and/or cooling, and also presents ways to further develop more complex methods, if needed, to obtain more accurate results. The book is arranged in three sections: The first section, named ‘Physics’, presents fundamental mathematical frameworks that can be used as is or combined together forming more complex tools to determine tissue temperatures; the second section, named ‘Physiology’, presents ideas and data that provide the basis for the physiological assumptions needed to develop successful mathematical tools; and finally, the third section, named ‘Applications’, presents examples of how the marriage of the first two sections are used to solve problems of today and tomorrow. This important text is the vital resource that: Offers a reference book in the field of heating and cooling of tissue, and associated damage. Provides a comprehensive theoretical and experimental basis with biomedical applications Shows how to develop and implement both, simple and complex mathematical models to predict tissue temperatures Includes simple examples and results so readers can use those results directly or adapt them for their applications Designed for students, engineers, and other professionals, a comprehensive text to the field of heating and cooling of tissue that includes proven theories with applications. The author reveals how to develop simple and complex mathematical models, to predict tissue heating and/or cooling, and associated damage.

Thermal Measurements

Author : L. A. Gritzo
ISBN : 0803134517
Genre : Electronic book
File Size : 54. 3 MB
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Annotation Presenting the proceedings of a symposium of the same name as the volume, held in December 2001 as part of the E-5 Fire Standards Committee meeting in Dallas, Texas, this volume contains 11 contributions representing recent work in a variety of thermal measurement topics. These include temperature uncertainties for bare- bead and aspirated thermocouple measurements in fire environments; Sandia heat flux gauge thermal response and uncertainty models; and thermal measurements for fire fighters' protective clothing. Lacks a subject index. Annotation copyrighted by Book News, Inc., Portland, OR.

Inverse Heat Conduction

Author : James V. Beck
ISBN : 0471083194
Genre : Science
File Size : 77. 42 MB
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Here is the only commercially published work to deal with the engineering problem of determining surface heat flux and temperature history based on interior temperature measurements. Provides the analytical techniques needed to arrive at otherwise difficult solutions, summarizing the findings of the last ten years. Topics include the steady state solution, Duhamel's Theorem, ill-posed problems, single future time step, and more.

Numerical Methods For Diffusion Phenomena In Building Physics

Author : Nathan Mendes
ISBN : 9788568324769
Genre : Science
File Size : 53. 38 MB
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This book intends to stimulate research in simulation of diff usion problems in building physics, by fi rst providing an overview of mathematical models and numerical techniques such as the fi nitediff erence and fi nite-element methods traditionally used in building simulation tools. Then, nonconventional methods such as reduced order models, boundary integral approaches and spectral methods are presented, which might be considered in the next generation of building-energy-simulation tools. The advantage of these methods includes the improvement of the numerical solution of diff usion phenomena, especially in large domains relevant to building energy performance analysis.

Thermal Conductivity 28

Author : David L. Mcelroy
ISBN : 9781932078596
Genre : Technology & Engineering
File Size : 49. 74 MB
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TABLE OF CONTENTS Preface CHAPTER 1—INSULATION · Detecting Resin Pre-Gelation in Hydro Generator Stator Bar Insulation · Thermal Insulation Using Fullerenes · Determination of Thermal Conductivity of Insulating Gels Using the Inverse Heat Transfer Method · Thermodynamic Analysis of High-Temperature, Multilayer Thermal Insulations CHAPTER 2—COMPOSITES AND POROUS MATERIALS · Measurement of the Thermophysical Properties of Magnesia-Carbon Refractory Materials · Effect of Interfacial Separation on Composite Thermal Conductivity · Method for Analyzing Thermal Conductivity of Heterogeneous Materials · Heat Conduction in Ceramics: Pores, Cracks and Splat Boundaries · The Long-Term Thermal Performance of Foams having Non-Uniform Density · Analysis of Flash Diffusivity Experiments Performed on Semi-Porous Materials · Measurement of Thermophysical Properties of Porous Ceramic Blocks by the Flash Method CHAPTER 3—THERMAL EXPANSION · Technique for Volumetric Expansion of Liquids and Solids from 200–400K · Negative Thermal Expansion · Variation of the Linear Coefficient of Thermal Expansion of Polymers Subject to Tension and Compression CHAPTER 4—MODELLING · Repeated Reflections of Acoustic Phonons in Hexagonal Crystals · Measurement and Microstructure-Based Modeling of the Thermal Conductivity of Fire Resistive Materials · Reflection Effects on the Thermal Conductivity of Dielectric Crystals in the Boundary-Scattering Regime CHAPTER 5—GASES AND FLUIDS · Thermal Conductivity of Methane—Revised Correlation of Experimental Data CHAPTER 6—EXPERIMENTAL TECHNIQUES · Infrared Imaging during Hot Disk Thermal Conductivity Measurements · High-Temperature Guarded Hot Plate Apparatus—Control of Edge Heat Loss · Determination of the Thermal and Electrical Contact Resistances at Elevated Temperatures · Fabrication of a Guarded-Hot-Plate Apparatus for Use Over an Extended Temperature Range and in a Controlled Gas Atmosphere · Determining Thermal Properties of Low-Density Porous Materials Using a Transient Inverse Heat Transfer Approach · Effusivity Sensor Package (ESP) System for Process Monitoring and Control · Radiation Calorimeter for Measurement of Thermophysical Properties of Solids from 400 to 800 K · New Transient Hot Bridge Sensor to Measure the Thermal Conductivity · JANUS: High Temperature Transient Hot Bridge Sensor · Improved Transient Hot Strip Sensor Design by Means of FEM Simulations · Rumination on Design and Build of an ASTM D-5470 Thermal Interface Test Instrument · A Mathis Type Microprobe for Thermal Anisotropy Measurements · Modified Line Heat Source Technique for Measurement of Thermal Properties on Mars · Fast Measurements of Absolute Thermal Conductivity Excluding Thermal Contact Resistance · All-Optical Measurement of Local Thermal Diffusivity in Opaque and Transparent Liquids and Solids CHAPTER 7—APPLICATIONS · Thermophysical Properties of Tobacco and Cigarettes · Thermogravimetric Methods: Applications to Determination of Residual Moisture in Freeze-Dried Biological Products · Evaluation of Thermal Interface Materials Using the Modified Hot Wire Technique · The Significance of Thermal Conductivity on Nuclear Fuel Oxidation Modelling · Radiative Heat Transfer Across Sugarcane and Coconut Fiber CHAPTER 8—NANOMATERIALS · An Optimized Thermo-Reflectance Technique for Thermal Conductivity Measurements of Thin-Film Electronic Materials · Thermal Interface Control: Thermal Performance and Structural Correlations for a Microscale Composite with Dispersed Nanoscale Filler Material · Measurement of the Thermal Diffusivity of Metallic Thin Films: Sn, Mo, and Al0.97Ti0.03 Alloy · Heat Flow in Nanowires · Thermal Conductivity of Heat Spread Films: Effect of Film ·Thickness and Deposition Temperature · High-Temperature Guarded Hot Plate Apparatus: Optimal Locations ·of Circular Heaters · Thermal Conductivity Based on Modified Laser Flash Measurement CHAPTER 9—GENERAL · Measurement of Thermal Expansion of High Temperature Resistant Alloys · Laser Flash Thermal Diffusivity Measurements of Isotropic Graphite and Glass-Like Carbon · Influence of Free Electrons on Thermal Conductivity: Thomson Effect · Thermal Conductivity and Heat Capacity Measurements of Paraffin Embedded in a Porous Matrix · Preliminary Investigations on Some Potential Applications of Thermal Effusivity Measurements in the Animal Feed Industry · Mathematical Model of the Structure of Heterogeneous Materials with Interpenetrating Components Author Index Subject Index Closure

Thermal Radiation Heat Transfer 5th Edition

Author : John R. Howell
ISBN : 9781439894552
Genre : Technology & Engineering
File Size : 34. 87 MB
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Providing a comprehensive overview of the radiative behavior and properties of materials, the fifth edition of this classic textbook describes the physics of radiative heat transfer, development of relevant analysis methods, and associated mathematical and numerical techniques. Retaining the salient features and fundamental coverage that have made it popular, Thermal Radiation Heat Transfer, Fifth Edition has been carefully streamlined to omit superfluous material, yet enhanced to update information with extensive references. Includes four new chapters on Inverse Methods, Electromagnetic Theory, Scattering and Absorption by Particles, and Near-Field Radiative Transfer Keeping pace with significant developments, this book begins by addressing the radiative properties of blackbody and opaque materials, and how they are predicted using electromagnetic theory and obtained through measurements. It discusses radiative exchange in enclosures without any radiating medium between the surfaces—and where heat conduction is included within the boundaries. The book also covers the radiative properties of gases and addresses energy exchange when gases and other materials interact with radiative energy, as occurs in furnaces. To make this challenging subject matter easily understandable for students, the authors have revised and reorganized this textbook to produce a streamlined, practical learning tool that: Applies the common nomenclature adopted by the major heat transfer journals Consolidates past material, reincorporating much of the previous text into appendices Provides an updated, expanded, and alphabetized collection of references, assembling them in one appendix Offers a helpful list of symbols With worked-out examples, chapter-end homework problems, and other useful learning features, such as concluding remarks and historical notes, this new edition continues its tradition of serving both as a comprehensive textbook for those studying and applying radiative transfer, and as a repository of vital literary references for the serious researcher.

Heat Conduction

Author : M. Necati Ozisik
ISBN : 0471532568
Genre : Technology & Engineering
File Size : 79. 55 MB
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This Second Edition for the standard graduate level course in conduction heat transfer has been updated and oriented more to engineering applications partnered with real-world examples. New features include: numerous grid generation--for finding solutions by the finite element method--and recently developed inverse heat conduction. Every chapter and reference has been updated and new exercise problems replace the old.

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