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Thermal Comfort Assessment of Buildings
by Salvatore CarlucciA number of metrics for assessing human thermal response to climatic conditions have been proposed in scientific literature over the last decades. They aim at describing human thermal perception of the thermal environment to which an individual or a group of people is exposed. More recently, a new type of "discomfort index" has been proposed for describing, in a synthetic way, long-term phenomena. Starting from a systematic review of a number of long-term global discomfort indices, they are then contrasted and compared on a reference case study in order to identify their similarities and differences and strengths and weaknesses. Based on this analysis, a new short-term local discomfort index is proposed for the American Adaptive comfort model. Finally, a new and reliable long-term general discomfort index is presented. It is delivered in three versions and each of them is suitable to be respectively coupled with the Fanger, the European Adaptive and the American Adaptive comfort models.
Thermal Comfort in Hot Dry Climates: Traditional Dwellings in Iran (Routledge Research in Architecture)
by Ahmadreza ForuzanmehrWith increases in global temperatures, the risk of overheating is expected to rise around the world. This results in a much higher dependency upon energy-intensive cooling systems and air-conditioners to provide thermal comfort, but how sustainable is this in a world where problems with the production of electricity are predicted? Vernacular houses in hot and dry central Iran have been adapted to the climate through passive cooling techniques, and this book provides a valuable assessment of the thermal performance of such housing. Shedding new light on the ability of traditional housing forms to provide thermal comfort, Thermal Comfort in Hot Dry Climates identifies the main cooling systems and methods in traditional houses in central Iran, and examines how architectural elements such as central courtyards, distinct seasonal rooms, loggias, basements and wind-catchers can contribute to the provision of thermal comfort in vernacular houses.
Thermal Comfort Perception: A Questionnaire Approach Focusing on Children (Springerbriefs In Applied Sciences And Technology Ser.)
by Kristian FabbriThis book offers a comprehensive exploration of children's understanding and experiences of thermal comfort. The book provides a methodology for evaluating comfort that takes into account the unique perspectives of children. The first part of the book provides an overview of the history of thermal comfort, the human body and environmental parameters, and common thermal comfort indexes. It also offers guidelines for creating questionnaires that accurately assess children's perceptions of indoor thermal comfort. The book then delves into children's understanding of the concepts of comfort and energy, as well as the factors that influence their perception of these concepts. It addresses the psychological and pedagogical aspects of thermal comfort judgment, as well as the architectural and environmental characteristics that contribute to children's perceptions of comfort. First published as Indoor Thermal Comfort Perception, this updated edition also includes new sections on architecture and sensitivity, exploring the impact of classroom spaces on learning, and outdoor education and thermal comfort outdoors, based on qualitative research. These additions provide valuable insights for future studies on these topics. While physical parameter measurements and comfort indexes are useful in thermal comfort, the book emphasizes the importance of ergonomic assessments in the form of questionnaires, which offer unique insights into children's experiences. The book fills a critical gap in understanding children's perceptions of thermal comfort and is essential reading for HVAC engineers, architects, environmental psychologists, and researchers in the medical and cognitive fields.
Thermal Computations for Electronics: Conductive, Radiative, and Convective Air Cooling
by Gordon N. EllisonThe first edition of Thermal Computations for Electronics: Conductive, Radiative, and Convective Air Cooling was based on the author's lecture notes that he developed over the course of nearly 40 years of thermal design and analysis activity, the last 15 years of which included teaching a university course at the senior undergraduate and graduate levels. The subject material was developed from publications of respected researchers and includes topics and methods original to this author. Numerous students have contributed to both the first and second editions, the latter corrected, sections rewritten (e.g., radiation spatial effects, Green's function properties for thermal spreading, 1-D FEA theory and application), and some new material added. The flavor and organization of the first edition have been retained, whereby the reader is guided through the analysis process for systems and then components. Important new material has been added regarding altitude effects on forced and buoyancy driven airflow and heat transfer. The first 20% of the book is devoted to the prediction of airflow and well-mixed air temperatures in systems, circuit board channels, and heat sinks, followed by convective (PCB-mounted components included), radiative, and conductive heat transfer and the resultant temperatures in electronic equipment. Detailed application examples illustrate a variety of problems. Downloads (from the CRC website) include: MathcadTM text examples, exercise solutions (adopting professors only) plus PDF lecture aids (professors only), and a tutorial (Chapter 14) using free FEA software to solve a thermal spreading problem. This book is a valuable professional resource for self-study and is ideal for use in a course on electronics cooling. It is well-suited for a first course in heat transfer where applications are as important as theory.
Thermal Conductivity 23
by Kenneth E. Wilkes; Ralph B. Dinwiddie; Ronald S. GravesThis book contains keynote lectures and 54 technical papers, presented at the 23rd International Thermal Conductivity Conference, on various topics, including techniques, coatings and films, theory, composites, fluids, metals, ceramics, and organics, related to thermal conductivity.
Thermal Conductivity Measurements in Atomically Thin Materials and Devices (SpringerBriefs in Applied Sciences and Technology)
by T. Serkan KasirgaThis book assesses the thermal feasibility of using materials with atomically thin layers such as graphene and the transition metal dichalcogenides family in electronics and optoelectronics applications. The focus is on thermal conductivity measurement techniques currently available for the investigation of thermal performance at the material and device level. In addition to providing detailed information on the available techniques, the book introduces readers to novel techniques based on photothermal effects.
Thermal Contact Conductance
by Chakravarti V. MadhusudanaThe work covers both theoretical and practical aspects of thermal contact conductance. The theoretical discussion focuses on heat transfer through spots, joints, and surfaces, as well as the role of interstitial materials (both planned and inadvertent). The practical discussion includes formulae and data that can be used in designing heat-transfer equipment for a variety of joints, including special geometries and configurations. All of the material has been updated to reflect the latest advances in the field.
Thermal Cracking in Concrete at Early Ages: Proceedings of the International RILEM Symposium
by R. SpringenschmidRestraint and intrinsic stresses in concrete at early ages are vitally important for concrete structures which must remain free of water-permeable cracks, such as water-retaining structures, tunnel linings, locks and dams. The development of hydration heat, stiffness and strength, also the degree of restraint and, especially for high-strength concr
Thermal Cracking of Massive Concrete Structures: State Of The Art Report Of The Rilem Technical Committee 254-cms (RILEM State-of-the-Art Reports #27)
by Miguel Azenha Eduardo M.R. FairbairnThis book provides a State of the Art Report (STAR) produced by RILEM Technical Committee 254-CMS ‘Thermal Cracking of Mas-sive Concrete Structures’. Several recent developments related to the old problem of understanding/predicting stresses originated from the evolution of the hydration of concrete are at the origin of the creation this technical committee. Having identified a lack in the organization of up-to-date scientific and technological knowledge about cracking induced by hydration heat effects, this STAR aims to provide both practitioners and scientists with a deep integrated overview of consolidated knowledge, together with recent developments on this subject.
Thermal Data for Natural and Synthetic Fuels
by Siddhartha Gaur Thomas B. Reed"Presents 100 samples of organic substances characterized under identical conditions by thermogravimetry (TG) and differential thermal analysis (DTA) in addition to proximate analysis-providing accurate information essential in research and engineering applications related to fuel preparation. Discusses nonisothermal kinetic techniques, mathematical models, and other parameter estimation procedures that facilitate the extrapolation of results obtained under various conditions-including the Gaur and Reed method, an important advance in understanding the kinetics of thermal data!"
Thermal Decomposition and Combustion of Explosives and Propellants
by G.B. ManelisThis unique book investigates the synthesis, kinetics, and thermal decomposition properties and processing of energy-producing materials used in propellants, explosives, pyrotechnic, and gas-generating compositions. Thermal Decomposition and Combustion of Explosives and Propellants provides several mechanisms and stages for the thermal deco
Thermal Degradation of Polymer Blends, Composites and Nanocomposites
by P. M. Visakh Yoshihiko AraoThis book delivers a deep insight into thermal polymer degradation features and put a particular emphasis on blends, composites and nanocomposites. It examines the thermal stability and the mechanism of degrading for every class of polymer substances and studies the effect on reinforcement to all classes. The book further explores the thermal stability when nano particles are added and summarizes the latest studies and application relevant results. This book offers a valuable reference source to graduate and post graduate students, engineering students, research scholars and polymer engineers from industry.
Thermal Design: Heat Sinks, Thermoelectrics, Heat Pipes, Compact Heat Exchangers, and Solar Cells
by HoSung LeeThermal Design Discover a new window to thermal engineering and thermodynamics through the study of thermal design Thermal engineering is a specialized sub-discipline of mechanical engineering that focuses on the movement and transfer of heat energy between two mediums or altered into other forms of energy. Thermal engineers must have a strong knowledge of thermodynamics and the processes that convert generated energy from thermal sources into chemical, mechanical, or electrical energy — as such, thermal engineers can be employed in many industries, particularly in automotive manufacturing, commercial construction, and the HVAC industry. As part of their job, thermal engineers often have to improve a current system to make it more efficient, and so must be aware of a wide array of variables and familiar with a broad sweep of systems to ensure the work they do is economically viable. In this significantly updated new edition, Thermal Design details the physical mechanisms of standard thermal devices while integrating essential formulas and detailed derivations to give a practical understanding of the field to students. The textbook examines the design of thermal devices through mathematical modeling, graphical optimization, and occasionally computational-fluid-dynamic (CFD) simulation. Moreover, it presents information on significant thermal devices such as heat sinks, thermoelectric generators and coolers, heat pipes, and heat exchangers as design components in larger systems — all of which are increasingly important and fundamental to numerous fields such as microelectronic cooling, green or thermal energy conversion, and thermal control and management in space. Readers of the Second Edition of Thermal Design will also find: A new chapter on thermoelectrics that reflects the latest modern technology that has recently been developed More problems and examples to help clarify points throughout the book A range of appendices, including new additions, that include more specifics on topicscovered in the book, tutorials for applications, and computational work A solutions manual provided on a companion website Thermal Design is a useful reference for engineers and researchers in me chanical engineering, as well as senior undergraduate and graduate students in mechanical engineering.
Thermal Design of Electronic Equipment (Electronics Handbook Series #6)
by Ralph RemsburgIn a field where change and growth is inevitable, new electronic packaging problems continually arise. Smaller, more powerful devices are prone to overheating, causing intermittent system failures, corrupted signals, lower MTBF, and outright system failure. Since convection cooling is the heat transfer path most engineers take to deal with thermal problems, it is appropriate to gain as much understanding about the underlying mechanisms of fluid motion as possible. Thermal Design of Electronic Equipment is the only book that specifically targets the formulas used by electronic packaging and thermal engineers. It presents heat transfer equations dealing with polyalphaolephin (PAO), silicone oils, perfluorocarbons, and silicate ester-based liquids. Instead of relying on theoretical expressions and text explanations, the author presents empirical formulas and practical techniques that allow you to quickly solve nearly any thermal engineering problem in electronic packaging.
Thermal Distribution Principle and Nonlinear Optimal Control for HVAC Water System (Indoor Environment and Sustainable Building)
by Tianyi Zhao Jiaming Wang Yiting WangThis book introduces the intelligent control technology of heating ventilation and air conditioning (HVAC) water system in detail, studying its thermal distribution characteristics and optimal control methods combining the nonlinearity, strong coupling and delay characteristics to improve the overall operation and maintenance level as well as the energy efficiency of HVAC water system. Intelligent control technology of HVAC water systems involves various fields such as electrical, mechanical, environmental and civil engineering. The book establishes a basic research framework for this topic using a sub-total approach, emphasizing the importance of thermodynamic properties and the significant influence of nonlinear properties in the optimal control of the system. This book is intended for undergraduate and postgraduate students interested in automated control of HVAC water systems, researchers investigating methods for system energy conservation and optimization and design engineers working on intelligent operation and maintenance of HVAC water system.
Thermal Effects in Supercapacitors
by Guoping Xiong Arpan Kundu Timothy S. FisherThis Brief reviews contemporary research conducted in university and industry laboratories on thermal management in electrochemical energy storage systems (capacitors and batteries) that have been widely used as power sources in many practical applications, such as automobiles, hybrid transport, renewable energy installations, power backup and electronic devices. Placing a particular emphasis on supercapacitors, the authors discuss how supercapacitors, or ultra capacitors, are complementing and replacing, batteries because of their faster power delivery, longer life cycle and higher coulombic efficiency, while providing higher energy density than conventional electrolytic capacitors. Recent advances in both macro- and micro capacitor technologies are covered. The work facilitates systematic understanding of thermal transport in such devices that can help develop better power management systems.
Thermal Effects of High Power Laser Energy on Materials
by Bahman ZohuriThis book offers a tutorial on the response of materials to lasers, with an emphasis on simple, intuitive models with analytical and mathematical solutions, using techniques such as Laplace Transformation to solve most complex heat conduction equations. It examines the relationship between existing thermal parameters of simple metals and looks at the characteristics of materials and their properties in order to investigate and perform theoretical analysis from a heat conduction perspective mathematically. Topics discussed include optical reflectivity of metals at infrared (IR) wavelengths, laser-induced heat flow in materials, the effects of melting and vaporization, the impulse generated in materials by pulsed radiation, and the influence of the absorption in the blow-off region in irradiated material. Written for engineers, scientists, and graduate-level engineering and physics students, Thermal Effects of High Power Laser Energy on Materials provides an in-depth look at high energy laser technology and its potential industrial and commercial applications in such areas as precision cutting, LIDAR and LADAR, and communications. The knowledge gained from this allows you to apply spaced-based relay mirror in order to compensate laser beam divergence back to its original coherency by preventing further thermal blooming that takes place during laser beam propagation through the atmosphere.Examines the state-of-the-art in currently available high energy laser technologies;Includes computer codes that deal with the response of materials to laser radiation;Provides detailed mathematical solutions of thermal response to laser radiation.
Thermal Energy: Sources, Recovery, and Applications (Sustainable Energy Strategies)
by Yatish T. ShahThe book details sources of thermal energy, methods of capture, and applications. It describes the basics of thermal energy, including measuring thermal energy, laws of thermodynamics that govern its use and transformation, modes of thermal energy, conventional processes, devices and materials, and the methods by which it is transferred. It covers 8 sources of thermal energy: combustion, fusion (solar) fission (nuclear), geothermal, microwave, plasma, waste heat, and thermal energy storage. In each case, the methods of production and capture and its uses are described in detail. It also discusses novel processes and devices used to improve transfer and transformation processes.
Thermal Energy: Applications, Innovations, and Future Directions
by Amritanshu Shukla Atul Sharma Karunesh KantThis book presents the essentials of thermal energy storage techniques along with recent innovations and covers in-depth knowledge of thermal energy applications. Different aspects of thermal energy storage systems are covered, ranging from fundamentals to case studies. Major topics covered include application of thermal energy in water heating, solar cooking and solar pond, thermal energy storage materials for indoor comfort in buildings, thermal management of battery, hydrogen production, reducing carbon footprints, and so forth. Key features: Presents current research and technological updates along with applications and market scenarios in thermal energy storage, thermal management, and applications of thermal energy Explores sensible, latent, and thermochemical energy storage aspects Emphasizes the need and adequate utilization of abundant heat energy for clean energy perspectives Reviews use of thermal energy in hydrogen production, the oil and gas sector, along with market analysis Includes pertinent case studies This book is aimed at researchers and graduate students in energy and mechanical engineering, energy storage, and renewables.
Thermal Energy Harvesting for Application at MEMS Scale
by Steven Percy Chris Knight Scott Mcgarry Alex Post Tim Moore Kate CavanaghThis book discusses the history of thermal heat generators and focuses on the potential for these processes using micro-electrical mechanical systems (MEMS) technology for this application. The main focus is on the capture of waste thermal energy for example from industrial processes, transport systems or the human body to generate useable electrical power. A wide range of technologies is discussed, including external combustion heat cycles at MEMS ( Brayton, Stirling and Rankine), Thermoacoustic, Shape Memory Alloys (SMAs), Multiferroics, Thermionics, Pyroelectric, Seebeck, Alkali Metal Thermal, Hydride Heat Engine, Johnson Thermo Electrochemical Converters, and the Johnson Electric Heat Pipe.
Thermal Energy Management in Vehicles (Automotive Series)
by Gerard Olivier Vincent Lemort Georges de PelsemaekerTHERMAL ENERGY MANAGEMENT IN VEHICLES Comprehensive coverage of thermal energy management systems and components in vehicles In Thermal Energy Management in Vehicles, a team of distinguished researchers delivers a robust and authoritative account of thermal energy management systems and components in vehicles. Covering three main areas—the thermal management of internal combustion engines, mobile air-conditioning, and thermal management of hybrid electric vehicles and electric vehicles—the book discusses and proposes simulation models for many of the components and systems introduced in the book. The authors also cover state-of-the-art and emerging technologies, as well as likely future industry trends, and offer an accompanying website with supplementary materials like downloadable models. Readers will also find: Material that bridges the gap between academia and industry Proposed simulation models for vehicular components and systems Fulsome discussions of industry trends likely to take hold in the near future Accompanying online resources, including downloadable simulation models, on a complimentary website Perfect for researchers, graduate students, and practitioners in automotive engineering, Thermal Energy Management in Vehicles will also benefit anyone seeking a comprehensive treatment of vehicular thermal energy management systems and components.
Thermal Energy Storage: Storage Techniques, Advanced Materials, Thermophysical Properties and Applications
by Hafiz Muhammad Ali Furqan Jamil Hamza BabarThis book covers various aspects of thermal energy storage. It looks at storage methods for thermal energy and reviews the various materials that store thermal energy and goes on to propose advanced materials that store energy better than conventional materials. The book also presents various thermophysical properties of advanced materials and the role of thermal energy storage in different applications such as buildings, solar energy, seawater desalination and cooling devices. The advanced energy storage materials have massive impact on heat transfer as compared to conventional energy storage materials. A concise discussion regarding current status, leading groups, journals and the countries working on advanced energy storage materials has also been provided. This book is useful to researchers, professionals and policymakers alike.
Thermal Energy Storage for Medium and High Temperatures: Concepts and Applications
by Wolf-Dieter SteinmannThis book provides a descriptive classification of the various concepts, giving characteristic performance data and design fundamentals. Systems based on sensible heat storage, latent heat storage and thermo-chemical processes are presented, including the state of maturity and innovative solutions. Essential for the effective integration of thermal storage systems is the optimal adaption to the specific requirements of an application. This is shown in the second part, where storage solutions for conventional and solar thermal power plants are described. Further examples show the integration into batch processes, mobile applications or options to support the utilization of waste heat. Systems using thermal energy storage for facility scale storage of electricity are also described.Storage systems for medium and high temperatures are an emerging option to improve the energy efficiency of power plants and industrial facilities. Reflecting the wide area of applications in the temperature range from 100 °C to 1200 °C, a large number of storage concepts has been developed.
Thermal Energy Storage Using Phase Change Materials
by Amy S. FleischerThis book presents a comprehensive introduction to the use of solidliquid phase change materials to store significant amounts of energy in the latent heat of fusion. The proper selection of materials for different applications is covered in detail, as is the use of high conductivity additives to enhance thermal diffusivity. Dr. Fleischer explores how applications of PCMS have expanded over the past 10 years to include the development of high efficiency building materials to reduce heating and cooling needs, smart material design for clothing, portable electronic systems thermal management, solar thermal power plant design and many others. Additional future research directions and challenges are also discussed.
Thermal Energy Storage with Phase Change Materials
by Mohammed Farid Amar Auckaili Gohar GholamibozanjaniThis book focuses on latent heat storage, which is one of the most efficient ways of storing thermal energy. Unlike the sensible heat storage method, the latent heat storage method provides much higher storage density with a smaller difference between storing and releasing temperatures. Thermal Energy Storage with Phase Change Materials is structured into four chapters that cover many aspects of thermal energy storage and their practical applications. Chapter 1 reviews selection, performance, and applications of phase change materials. Chapter 2 investigates mathematical analyses of phase change processes. Chapters 3 and 4 present passive and active applications for energy saving, peak load shifting, and price-based control heating using phase change materials. These chapters explore the hot topic of energy saving in an overarching way, and so they are relevant to all courses. This book is an ideal research reference for students at the postgraduate level. It also serves as a useful reference for electrical, mechanical, and chemical engineers and students throughout their work. FEATURES Explains the technical principles of thermal energy storage, including materials and applications in different classifications Provides fundamental calculations of heat transfer with phase change Discusses the benefits and limitations of different types of phase change materials (PCM) in both micro- and macroencapsulations Reviews the mechanisms and applications of available thermal energy storage systems Introduces innovative solutions in hot and cold storage applications