Download or read book Thermal Behavior of Photovoltaic Devices written by Olivier Dupré and published by Springer. This book was released on 2016-12-02 with total page 142 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a comprehensive introduction to the thermal issues in photovoltaics. It also offers an extensive overview of the physics involved and insights into possible thermal optimizations of the different photovoltaic device technologies.In general, temperature negatively affects the efficiency of photovoltaic devices. The first chapter describes the temperature-induced losses in photovoltaic devices and reviews the strategies to overcome them. The second chapter introduces the concept of temperature coefficient, the underlying physics and some guidelines for reducing their negative impacts. Subsequent chapters offer a comprehensive and general thermal model of photovoltaic devices, and review how current and emerging technologies, mainly solar cells but also thermophotovoltaic devices, can benefit from thermal optimizations.Throughout the book, the authors argue that the energy yield of photovoltaic devices can be optimized by taking their thermal behavior and operating conditions into consideration in their design.
Download or read book Physics of the Thermal Behavior of Photovoltaic Devices written by Olivier Dupré and published by . This book was released on 2020 with total page 221 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Ph.D. thesis manuscript reports on a study about the physics of the thermal behavior of photovoltaic (PV) systems. While it is long known that the conversion efficiency of PV devices deteriorates when their temperature increases, a detailed analysis of all the mechanisms involved was not available to date in the literature. Part I of this manuscript gathers and extends the existing works on the topic in order to offer a comprehensive view of the physics involved in the temperature sensitivities of PV systems. First, temperature coefficients, which quantify the temperature dependences, are analyzed in the radiative limit (which is the fundamental limit for PV conversion). Then, the additional loss mechanisms of real PV devices are introduced and their impacts on the temperature coefficients are assessed. The existing theoretical expressions of the temperature coefficients of important solar cell parameters (namely open-circuit voltage, short-circuit current and fill factor) are reviewed. A new formulation of the temperature coefficient of the open-circuit voltage that incorporates the concept of External Radiative Efficiency (ERE) is proposed. The theoretical expressions are compared to experimental results on crystalline silicon cells from measurements made at the University of New South Wales (UNSW, Australia) and from the literature. Using the understanding of the relation between the temperature coefficients and device physics, the special cases of silicon heterojunction cells and cells made from compensated silicon are examined. Because temperature has a critical impact on the performances of PV devices, several studies aimed on the one hand at predicting the temperature of PV modules from their operating conditions and on the other hand at designing inexpensive cooling solutions. The goal of Part II of this manuscript is to propose an original approach to minimize the temperature-induced losses in PV systems. The idea is to include the operating conditions in the optimization of the system parameters in order to maximize the power produced in these conditions rather than in the Standard Test Conditions (STC). These original optimizations are based on a comprehensive thermal model of PV cells that captures all of the physical mechanisms involved in the generation of heat within the cell. Following the presentation of this thermal model, several examples of global optimization (i.e. a thermal criterion is added to the usual optical and electrical ones) are presented. Some of these examples apply to standard solar cells while others demonstrate that this kind of optimization can be applied to other PV systems such as thermophotovoltaic (TPV) converters (solar or near-field TPV). The recent trend of the PV industry towards the creation of products specifically adapted to a given use suggests that these original optimizations that take into account the system operating conditions could be implemented in the near future.
Download or read book Photovoltaic Thermal PV T Systems written by Ali H. A. Al-Waeli and published by Springer Nature. This book was released on 2019-10-25 with total page 282 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides the most up-to-date information on hybrid solar cell and solar thermal collectors, which are commonly referred to as Photovoltaic/Thermal (PV/T) systems. PV/T systems convert solar radiation into thermal and electrical energy to produce electricity, utilize more of the solar spectrum, and save space by combining the two structures to cover lesser area than two systems separately. Research in this area is growing rapidly and is highlighted within this book. The most current methods and techniques available to aid in overall efficiency, reduce cost and improve modeling and system maintenance are all covered. In-depth chapters present the background and basic principles of the technology along with a detailed review of the most current literature. Moreover, the book details design criteria for PV/T systems including residential, commercial, and industrial applications. Provides an objective and decisive source for the supporters of green and renewable source of energy Discusses and evaluates state-of-the-art PV/T system designs Proposes and recommends potential designs for future research on this topic
Download or read book Ultra High Temperature Thermal Energy Storage Transfer and Conversion written by Alejandro Datas and published by Woodhead Publishing. This book was released on 2020-09-01 with total page 370 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ultra-High Temperature Thermal Energy Storage, Transfer and Conversion presents a comprehensive analysis of thermal energy storage systems operating at beyond 800°C. Editor Dr. Alejandro Datas and his team of expert contributors from a variety of regions summarize the main technological options and the most relevant materials and characterization considerations to enable the reader to make the most effective and efficient decisions.This book helps the reader to solve the very specific challenges associated with working within an ultra-high temperature energy storage setting. It condenses and summarizes the latest knowledge, covering fundamentals, device design, materials selection and applications, as well as thermodynamic cycles and solid-state devices for ultra-high temperature energy conversion.This book provides a comprehensive and multidisciplinary guide to engineers and researchers in a variety of fields including energy conversion, storage, cogeneration, thermodynamics, numerical methods, CSP, and materials engineering. It firstly provides a review of fundamental concepts before exploring numerical methods for fluid-dynamics and phase change materials, before presenting more complex elements such as heat transfer fluids, thermal insulation, thermodynamic cycles, and a variety of energy conversation methods including thermophotovoltaic, thermionic, and combined heat and power. Reviews the main technologies enabling ultra-high temperature energy storage and conversion, including both thermodynamic cycles and solid-state devices Includes the applications for ultra-high temperature energy storage systems, both in terrestrial and space environments Analyzes the thermophysical properties and relevant experimental and theoretical methods for the analysis of high-temperature materials
Download or read book Building Physics and Building Energy Systems written by Davide Astiaso Garcia and published by MDPI. This book was released on 2021-03-19 with total page 194 pages. Available in PDF, EPUB and Kindle. Book excerpt: The energy transition is one of the key approaches in the effort to halt climate changes, and it has become even more essential in the light of the recent COVID-19 pandemic. Fostering the energy efficiency and the energy independence of the building sector is a focal aim to move towards a decarbonized society. In this context, building physics and building energy systems are fundamental disciplines based on applied physics applications in civil, architectural, and environmental engineering, including technical themes related to the planning of energy and the environment, diagnostic methods, and mitigating techniques. This Special Issue contains information on experimental studies in the following research topics: renewable energy sources, building energy analysis, rational use of energy, heat transmission, heating and cooling systems, thermofluid dynamics, smart energy systems, and energy service management in buildings.
Download or read book Energy a Continuing Bibliography with Indexes written by and published by . This book was released on 1981 with total page 490 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Solar Energy Update written by and published by . This book was released on 1984 with total page 680 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Energy Research Abstracts written by and published by . This book was released on 1988 with total page 752 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Modelling and Design of Nanostructured Optoelectronic Devices written by Jagdish A. Krishnaswamy and published by Springer Nature. This book was released on 2022-04-02 with total page 293 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book approaches the design of functionally superior optoelectronic devices through the use of bio-inspired nanostructures and multiscale material structures through a step-by-step approach. The book combines both the fundamental theoretical concepts involved in understanding and numerically modelling optoelectronic devices and the application of such methods in addressing challenging research problems in nanostructured optoelectronic design and fabrication. The book offers comprehensive content in optoelectronic materials and engineering and can be used as a reference material by researchers in nanostructured optoelectronic design.
Download or read book Proceedings of the TMS Middle East Mediterranean Materials Congress on Energy and Infrastructure Systems MEMA 2015 written by Ibrahim Karaman and published by Springer. This book was released on 2016-12-06 with total page 532 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is a collection of papers presented at The TMS Middle East - Mediterranean Materials Congress on Energy and Infrastructure Systems (MEMA 2015), a conference organized by The Minerals, Metals & Materials Society (TMS) and held in Doha, Qatar. The event focused on new materials research and development in applications of interest for Qatar and the entire Middle East and Mediterranean region. The papers in this collection are divided into five sections: (1) Sustainable Infrastructure Materials; (2) Computational Materials Design; (3) Materials for Energy Conversion and Storage; (4) Lightweight and High Performance Materials; and (5) Materials for Energy Extraction and Storage: Shape Memory Alloys.
Download or read book Proceedings of I4SDG Workshop 2021 written by Giuseppe Quaglia and published by Springer Nature. This book was released on 2021-10-13 with total page 657 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume contains the papers of the 1st Workshop IFToMM for Sustainable Development Goals (I4SDG), held online on November 25-26, 2021. The main topics of the workshop include the aspects of theory, design and practice of mechanism and machine science which are instrumental in reaching a sustainable development, such as: biomechanical engineering, sustainable energy systems, robotics and mechatronics, green tribology, computational kinematics, dynamics of machinery, industrial applications of mechanism design, gearing and transmissions, multibody dynamics rotor dynamics, vibrations, humanitarian engineering, and socio-technical systems for sustainable and inclusive development. The contributions, which were selected by means of a rigorous international peer-review process, highlight numerous exciting ideas that will spur novel research directions and foster multidisciplinary collaboration among different specialists, demonstrating that medical and service robotics will drive the technological and societal change in the coming decades.
Download or read book Organic Photovoltaics written by Christoph Brabec and published by John Wiley & Sons. This book was released on 2011-09-22 with total page 597 pages. Available in PDF, EPUB and Kindle. Book excerpt: Providing complementary viewpoints from academia as well as technology companies, this book covers the three most important aspects of successful device design: materials, device physics, and manufacturing technologies. It also offers an insight into commercialization concerns, such as packaging technologies, system integration, reel-to-reel large scale manufacturing issues and production costs. With an introduction by Nobel Laureate Alan Heeger.
Download or read book Molecular Devices for Solar Energy Conversion and Storage written by Haining Tian and published by Springer. This book was released on 2017-09-14 with total page 539 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book shows the different molecular devices used for solar energy conversion and storage and the important characterization techniques for this kind of device. It has five chapters describing representative molecule-based solar cells, such as organic solar cells, dye-sensitized solar cells and hybrid solar cells (perovskite solar cell and quantum dots solar cells). It also includes two chapters demonstrating the use of molecular devices in the areas of solar fuel, water splitting and carbon dioxide reduction. There are further two chapters with interesting examples of solar energy storage related devices, like solar flow battery, solar capacitor and solar energy-thermal energy storage. Three chapters introduce important techniques used to characterize, investigate and evaluate the mechanism of molecular devices. The final chapter discusses the stability of perovskite solar cells. This book is relevant for a wide readership, and is particularly useful for students, researchers and industrial professionals who are working on molecular devices for solar energy utilization.
Download or read book Progress in Solar Energy Technology and Applications written by Umakanta Sahoo and published by John Wiley & Sons. This book was released on 2019-10-01 with total page 378 pages. Available in PDF, EPUB and Kindle. Book excerpt: Energy is one of the most important topics of our time, and renewable energy has been a long and still-unfolding story that has taken decades to bring us to where we are today. Even after so much progress, engineers and scientists are always still developing new and innovative techniques, processes, equipment, and materials to further the science and fulfill the mission of generating cleaner, renewable energy for the world’s consumption. This new groundbreaking series, Advances in Renewable Energy, covers these topics across the spectrum, including solar, wind, and other renewable energy sources. This first volume in the series focuses on solar energy, probably the fastest-growing and developing area of renewable energy. With new materials and processes constantly coming online, it is important for engineers and scientists to stay abreast of the state-of-the-art in the field, and this volume does just that. Covering not just the basics of the technology and technological advances, the contributors delve into the financial aspects of solar energy systems as well. They look at total costs, not just initial costs, but the costs of maintenance, as well, Covering nearly every aspect of solar energy systems and the latest advances in the field, this is a must-have volume for any engineer, scientist, student, or educator working in or studying solar energy.
Download or read book Photovoltaic and Thermal Properties of Hybrid Organic inorganic Metal Halide Perovskites written by Anton Kovalsky and published by . This book was released on 2017 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt: This dissertation focuses on intrinsic and emergent properties of a novel crystalline compound, methylammonium lead iodide perovskite, a material that has been at the center of intense research for the last decade due both to its unusual hybrid organic-inorganic crystal structure and its promising photovoltaic performance. The research contained herein approaches this material from two distinct perspectives. The first half of this thesis aims to provide a rigorous characterization of the perovskite’s behavior as a light absorber and photoconverter within the context of a thin film solar cell. By systematically tracking the wavelength-dependent light harvesting and photocoversion efficiencies of perovskite-based solar, and by comparing these efficiencies across perovskite-based solar cells with certain architectural modifications, we acquire a more complete understanding of the originof photovoltaic action of the perovskite, and are thus able to determine some clear design rules that maximize the emergent properties for which this material has become so well known.Importantly, in this first half of the dissertation, we provide detailed instructions on how to perform such rigorous analysis of solar cell technology in general. This analytical paradigm, known as combined optical and electronic loss analysis, can be used to build a thorough understanding of the specific strengths and weaknesses of either individual solar cells or entire classes of solar cells. Our analysis of perovskite-based solar cells that employ TiO2 as the electron-transporting layer provides insight both into the limitations of popular photovoltaic motifs – namely that of the ubiquitous mesoporous solar cell – for this important class of absorber, as well as the limitations of the analysis itself, and we discuss in detail the importance of correctly accounting for the effects of diffuse light scattering.The second half of this dissertation explores the intrinsic thermal properties of methylammonium lead iodide. Bulk thermal conductivity measurements performed on pellets of compressed methylammonium lead iodide, as well as some reference materials, yield a wealth of information on the vibrational properties of the perovskite’s unique unit cell. Our work represents a much needed definitive empirical demonstration of the effect of molecular motion of the methylammonium cation onthermal transport in the perovskite lattice.Furthermore, the organic-inorganic compound’s intrinsic thermal instability is also explored using thermal analysis. The thermal instability of methylammonium lead halides is a widely discussed problem in the field of perovskite-based solar cells, and is perhaps the greatest hurdle that this technology must overcome for costeffective commercialization. One of the key factors that exacerbates this issue is the extremely low thermal conductivity of methylammonium lead iodide. We use thermal analysis and crystallographic characterization to show that it is potentially possible tomitigate this issue. In the last chapter of this dissertation, we present a proof-of conceptstudy that suggests that a controlled partial degradation can significantly raise a bulk perovskite’s thermal conductivity, even while most of the perovskite lattice remains intact.Taken together, our analyses of methylammonium lead iodide either as a light absorber or as a heat (non-)conductor point towards a plethora of possible nanoengineering strategies that can improve the stability and photocurrent generation in this important new class of photovoltaic material.
Download or read book Advanced Intelligent Systems for Sustainable Development AI2SD 2018 written by Mostafa Ezziyyani and published by Springer. This book was released on 2019-02-04 with total page 442 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book gathers papers presented at the International Conference on Advanced Intelligent Systems for Sustainable Development (AI2SD-2018), which was held in Tangiers, Morocco on 12–14 July 2018. In addition to the latest research in the field of energy, it offers new solutions, tools and effective techniques, and provides essential information on smart grids, renewable and economical energy. Further, it addresses modeling, storage management and decision support in the field of energy, offering a valuable guide for researchers, professionals and all those who are interested in the development of advanced intelligent systems in the energy sector.
