Bøger i Green Energy and Technology serien

The text describes the main features of currently available heat pumps, focusing on system operation and interactions with external heat sources.

Sustainable Engineering: Concepts and Practices provides insights into current perspectives on sustainable engineering research. It highlights the drivers, motivations, and challenges affecting the development and adoption of sustainable engineering in various sectors of the economy and how they impact sustainable development. Contributions from researchers representing multiple branches of engineering in academia, government laboratories, and industry present alternative approaches to traditional engineering practices. These approaches effect change, making the design, construction, production, and management of products, processes, and systems more environmentally friendly, socially beneficial, and economically profitable. The book will be a trusted reference for graduate students, practicing engineers, and other professionals interested in developing or using sustainable products and systems.

This book is a comprehensive overview of the forest bioenergy, from feedstock production to end products. The book presents the state of the art of forest biomass production, assessment, characterization, and conversion into heat and power. It starts with forest sources of biomass and potential availability. Continues with the characterization of the forest stands and the availability of biomass for energy per stand structure, including stands managed for timber, non-wood products, and energy plantations. It follows with biomass evaluation and monitoring considering data sources, modeling methods, and existing models. are also addressed. After the initial focus on forest biomass production and estimation, this resource is assessed as a feedstock for energy conversion. Not only current, but also emerging biofuels obtained from forest biomass are considered. Established and emerging conversion technologies for the production of bio-heat and bio-power are examined and the impacts of the conversion systems presented.

This book assists in the adoption of the sustainable cross-sectoral nexus approach of agrivoltaics, which can provide a quite significant untapped potential for the sustainable development of humanity. Increasing demand for water, energy and food, due to population growth and urbanization, is aggravated by unprecedented extreme weather and climatic conditions. This situation is likely to undermine the sustainable and peaceful development of humanity. Today, more than ever, there is an imperative need to support the identification and development of practical solutions, where the use of a nexus approach can lead to improved outcomes in the integrated management of water¿energy¿food¿ecosystem (WEFE) resources. This book disseminates the current knowledge of the modern approach of agrivoltaics, providing a comprehensive state of the art on the field, discussing the current status, the challenges and the future perspectives for their further development. This new currently in-depth unexplored topic will be covered thoroughly by the present book, which will attract the readership of both the scientific and industrial research communities, even of people who are dealing with cultivations, promoting the development in the field, from conceptual designs to practical realizations.

This book gives you theory and design of PV/T systems. Are you interested in solar energy? If you are, you must have read about solar panels, or photovoltaics (PV). If you have installed a photovoltaic system, you must have noticed it not to generate the amount of power mentioned in its datasheet. A major issue that PV suffers from is its temperature, which causes a drop in its power. Among the solutions to this issue is to use active cooling methods, such as the hybrid photovoltaic thermal (PV/T) system. These systems can produce electrical and thermal energy simultaneously and within same area. The thermal collector serves to cool down the PV surface temperature, which negatively affects the PV efficiency, to reclaim the efficiency or bring it back close to standard testing conditions value. Moreover, the thermal collector will convey this heat using a working fluid and extract it as thermal energy. On the other hand, the electrical power generated from the PV can be utilized in standalone or grid-connected configuration. Moreover, the book presents a novel PV/T collector which can utilize nanofluids and nano-Phase Change Material (PCM) to enhance its performance in tropical climate conditions. The methods used to develop the heat transfer and energy balance equations are presented as well. PV/T collector numerical simulation using MATLAB and computational fluid dynamic (CFD) was also presented. Finally, the approach of life cycle cost analysis (LCCA) is presented to evaluate PV/T with nanofluid and nano-PCM, economically.

This book comprehensively describes the operating principles and theoretical foundations of solar chimneys. It covers current research results, including numerical analysis and mathematical models based on different assumptions. Complying with the application of renewable energy in sustainable buildings, solar chimney has received extensive attention as an indispensable part natural ventilation. This book is a guide to the application of solar chimneys from single zones to multi zones, and it provides a reference source of application for construction practitioners and engineering decision-makers. The design basis and the related basic principles of fluid mechanics and natural ventilation design strategies introduced in this book will also be beneficial to college students.

This book shows possible solutions to how a profitable energy supply can be implemented with almost no population resistance. Worldwide, more than 80 % of our energy needs are still covered by fossil fuels. Under these circumstances, can climate change still be stopped?Essential technologies for usage of wind energy with an emphasis on high-altitude wind utilization are presented. Airborne wind energy is one of the most promising technologies to enable a renewable energy turnaround in an economical way. The main problem of conventional renewable energy is the insufficient availability. To ensure a 100 % supply of renewable energy, enormous and very expensive storage capacities would have to be built up.How we can cover our entire energy needs (electricity, mobility and heat) in the future without fossil fuels, without risking the competitiveness of our economy, is shown in this book.

This book discusses power electronics, signal processing and communication systems applications in smart grids (SG). Smart grids can be considered an evolution of the classic energy model to allow a more efficient management of the relationship between supply and demand, in order to overcome the contingency problems of the modern world. To achieve their goals, they use advanced technologies of information and communication, power electronics and signal processing, and can be used to integrate renewable energy sources.The book is divided into two main parts. The first part presents the application of power electronics technologies in renewable energy systems, while the second part presents some telecommunications, signal processing and energy capture technologies within the context of SGs. The chapters are written by invited expert authors, according to their research areas.

This book discusses topics such as solar energy, heat transfer, solar cell and photovoltaic module, greenhouse-integrated semi-transparent photovoltaic thermal (GiSPVT) system for agriculture and aquaculture, GiSPVT solar dryer, and PVT water and air collector for water heating, air heating, biogas heating and swimming pool heating, etc. The book also discusses energy matrices, including EPBT, EPF, and LCCE. It includes pedagogical elements such as exercises, tables, and figures including problems and objective questions at the end of each chapter. Further, it includes the unit conversion from FPS system to SI unit of each parameter, namely length, energy, power, velocity, pressure force, etc., and some standard constants used in examples. Quasi steady state and periodic modeling of PVT technology described in the book is a useful reference for students, researchers, and academicians to design solar energy-based technology.

This book collects the best papers presented at a recent conference organized by SIEV (Italian Society of Appraisal and Valuation) to promote the interaction between Appraisal and Valuation and other social sciences to study the effects of migration on value and social, spatial and economic systems in a multicultural city. The book consists of seventeen papers in two parts. The first part, "e;Values and Relational Systems in Multicultural Societies"e;, features how social sciences--including appraisal and valuation, urban planning, philosophy, psychology, and geography--take different approaches to studying values and relationships, converging to form a unified mosaic of complementary and interconnected knowledge. The second part, "e;Permeability and Permanence of Values in a Contemporary Multicultural City"e;, highlights the most crucial topics on which appraisals and models focus to interpret and represent the influence of migration on the real estate market in different urban and territorial contexts, from historical centers, small towns, to tourist cities, also taking into account sustainability, maintenance and regeneration of cities.

This book reviews the history and evolution of district heating networks, with a focus on current and future issues of the district heating sector. Novel developments in the field of low temperature district heating are studied, limitations for safe operation and avoidance of bacteria are considered, and the associated improved performance of the system with fewer network losses is presented.This book showcases how the evolution of district heating networks is linked to the increased use of renewables and de-carbonized heat sources with specific focus to waste heat streams and solar energy systems. Considering the novelty of these technologies, technological developments and funding schemes for these investments are still immature to some extent. For that reason, a comprehensive review of the main aspects of energy planning as well as district heating economics and financing schemes for large-scale investments in renewable energy systems for district energy systems is performed.In the light of digitalization, networks are increasingly monitored, allowing for a drastic change in the approach for network operation. This book also explores the increased digitization and monitoring of networks and how this impacts network operation.This book is of interest to engineers, academics and officials interested in energy systems, presenting readers with the key concepts and tools to adapt to the evolution of district heating into an integrated, digitized and higher performing system.

This book highlights recent progress on the advancements toward optimization of major biorefinery processes, including biomass pretreatment and fractionation, saccharification of sugars, and conversion of sugars and lignin into fuels and chemical precursors. The continual improvement of these processes and their integration in the format of a modern biorefinery is paving the way for a sustainable bio-economy that will displace large portions of petroleum-derived fuels and chemicals with renewable substitutes. Written by leading researchers from academia and well-renowned industry professionals, this book provides a comprehensive review of various aspects related to the recent developments in biomass conversion and biorefinery, aimed at successfully implementing the circular economy principles in various industries.

This book is a must-read for those interested in the aging phenomenon of materials used in new energy systems, such as photovoltaic and electric vehicles. It provides a fundamental framework for this topic and important basic data and references for insulation materials used in these systems. It covers the aging of photovoltaic systems installed in different environments, including space, as well as the aging of the discharge present in the drive motors of electric vehicles. This book is suitable for researchers and students interested in green energy systems and can be used for teaching, research, and science popularization.

This book highlights sustainable methods with photocatalytic activities to remediate environment and for energy conversion. The related photocatalytic materials are discussed in detail. Some significant photocatalytic applications in degrading industrial pollutants that include different organic dyes, purifying the polluted air, converting CO2 to alcohol fuels, storing energy from sunlight as ammonia by converting N2 to NH3, and splitting water by optimizing the oxygen evolution process are thoroughly elucidated. The chapters introduce the necessary materials and results, leading to a better conceptualization in order to work in the field of photocatalysis. Some related perspectives and outlooks are discussed in the last chapter for possible future developments.

This book describes for first time the synthesis and intensified process design in the production of top biofuels. The production of biofuels is not new. In 2019, global biofuel production levels reached 1,841 thousand barrels of oil equivalent per day, in stark comparison to the 187 thousand barrels of oil equivalent per day that was produced in 2000. Growth has largely been driven by policies that encourage the use and production of biofuels due to the perception that it could provide energy security and reduce greenhouse gas emissions in relevant sectors. From a technical point of view, almost all fuels from fossil resources could be substituted by their bio-based counterparts. However, the cost of bio-based production in many cases exceeds the cost of petrochemical production. Also, biofuels must be proven to perform at least as good as the petrochemical equivalent they are substituting and to have a lower environmental impact. The low price of crude oil acted as a barrier to biofuels production and producers focussed on the specific attributes of biofuels such as their complex structure to justify production costs. Also, the consumer demand for environmentally friendly products, population growth and limited supplies of non-renewable resources has now opened new windows of opportunity for biofuels. The industry is increasingly viewing chemical production from renewable resources as an attractive area for investment. This book uniquely introduces the application of new process intensification techniques that will allow the generation of clean, efficient and economical processes for biofuels in a competitive way in the market.

Future Energy: Challenge, Opportunity, and Sustainability presents new advances and research results in the fields of theoretical, experimental, and practical sustainable energy engineering. The book¿s chapters are based on selected research papers presented at the 2023 7th International Conference on Sustainable Energy Engineering (ICSEE 2023). Contributions cover case studies to explore and analyze technological advancements alongside practical applications to help readers better understand the relevant concepts and solutions necessary to achieve clean energy and sustainable development. The book brings together the latest developments in the emerging areas of intelligent power systems, green energy, and technology. It offers approaches to help engineers and researchers working in sustainable energy engineering technologies solve practical problems affecting their daily work.

This book examines the role of the evaluation models in decision-making processes for the construction of circular cities in the digital revolution. In particular, the book explores the need for a rethinking of development models proposed by the circular economy which requires the valorization of natural, social and economic capital. Urban environment represents a crucial field of analysis in which applying the circular-economy principles in order to steer a course towards a sustainable economy characterized by processes meant to create value instead of extracting it, which put a step forward in the pathway towards a better future in terms of economic, environmental and social effects and desirable outcomes. In this context, the design of urban regeneration processes and housing environments requires the adoption of inclusive analysis/assessment models combined with the structuring and organization of public/private investments that can contribute to creating positive natural and social impacts as well as economic and financial returns. This fundamental paradigm shift is accentuated in the current context, in which the digital revolution is reinventing the future and calls for a rethinking and reformulation of value systems in the era of technological process innovations, while respecting economic, natural and social ecosystems.

This book brings together important new contributions covering electric vehicle smart charging (EVSC) from a multidisciplinary group of global experts, providing a comprehensive look at EVSC and its role in meeting long-term goals for decarbonization of electricity generation and transportation. This multidisciplinary reference presents practical aspects and approaches to the technology, along with evidence from its applications to real-world energy systems. Electric Vehicle Integration via Smart Charging is suitable for practitioners and industry stakeholders working on EVSC, as well as researchers and developers from different branches of engineering, energy, transportation, economic, and operation research fields. 

This multi-disciplinary book presents the most recent advances in exergy, energy, and environmental issues. Volume 2 focuses on fundamentals in the field and covers current problems, future needs, and prospects in the area of energy and environment from researchers worldwide. Based on some selected lectures from the Eleventh International Exergy, Energy and Environmental Symposium (IEEES-11) and complemented by further invited contributions, this comprehensive set of contributions promote the exchange of new ideas and techniques in energy conversion and conservation in order to exchange best practices in "e;energetic efficiency."e; Included are fundamental and historical coverage of the green transportation and sustainable mobility sectors, especially regarding the development of sustainable technologies for thermal comforts and green transportation vehicles. Furthermore, contributions on renewable and sustainable energy sources, strategies for energy production, and the carbon-free society constitute an important part of this book.

This book describes improvements to the electronics topology of current modular reconfigurable storages by integrating parallel connectivity, reducing the semiconductor count by eliminating irrelevant states, and improving the monitoring techniques through higher function integration. The author also discusses each topology's main advantages and disadvantages at the micro and macro levels. Moreover, the presented modeling of modular reconfigurable storage systems with different storages helps in better understanding the dynamics of the system.The book establishes novel optimum or near-optimum methods for exploiting the DOF (degrees of freedom) to achieve higher efficiency, more function integration, better balancing, or output quality. Additionally, through a detailed analysis of different modulation techniques, this book presents novel modulation methods, enhances the state-of-the-art, or in some cases, simplifies the complexity of implementation.The concept of interconnected multi-port systems through integrating novel modulation techniques and the acquired understanding of the behavior of modular dynamically reconfigurable storages is explained. The presented concepts can significantly reduce the number of energy conversion stages as well as the final footprint of the system, reduce the number of required controlled semiconductors, and save costs. It also presents novel monitoring techniques based on estimators that can significantly reduce the number of required sensors and the required data-communication bandwidth.

The book covers practical applications and experimental results of integrating renewable energy technologies, energy storage facilities, and intelligent control and operation techniques into building energy systems. It introduces practical approaches to improving the energy systems of buildings in order to reduce energy consumption and cost. Renewable Energy for Buildings is suitable for retrofit engineers, energy engineers, and professionals, as well as researchers and developers in electrical engineering, architectural engineering, and mechanical engineering. Moreover, it can be used by undergraduate and graduate students to become familiar with the most recent developments in building energy systems.Examines the most recent developments in building energy systems;Looks at practical applications and theoretical aspects; Includes case studies.