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In einem Solarturmkraftwerk werden hunderte bis tausende Spiegel (sogenannte Heliostate) einzeln der Sonne nachgeführt, sodass das Sonnenlicht auf die Spitze eines Turmes konzentriert wird. Dort befindet sich der Receiver, der die Solarstrahlung absorbiert und an das Wärmeträgermedium weitergibt. Große thermische Energiespeicher erlauben die ganztägige Stromproduktion (auch Nachts). In aktuellen Solarturmkraftwerken kommen als Wärmeträger- und Speichermedium häufig flüssige Nitratsalze wie Solar Salt zum Einsatz. Aufgrund ihrer hohen Wärmekapazität und den geringen Kosten eignen sie sich sehr gut zur thermischen Energiespeicherung, jedoch bringen sie auch einige Nachteile mit sich. Flüssigmetalle weisen in vielen Punkten Vorteile gegenüber den Flüssigsalzen auf. In der vorliegenden Arbeit werden die Eigenschaften von Flüssigmetallen detailliert analysiert und mit Solar Salt verglichen. Zur Bewertung werden die Jahreserträge bzw. die Stromgestehungskosten (LCOE) herangezogen. Die Ergebnisse zeigen ein Potenzial zur Reduktion der Stromgestehungskosten mit Flüssigmetallen um bis zu 16 % gegenüber dem Referenzsystem mit Solar Salt, ohne dabei den Kraftwerksblock und den thermischen Speicher zu verändern.

Technology. --- Solarturmkraftwerk --- Flüssigmetalle --- Flüssigsalz --- Wärmeübertragung --- Concentrated solar power

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The depletion of fossil fuels, the increase of energy demands, and the concerns over climate change are the major driving forces for the development of renewable energy, such as solar energy and wind power. However, the intermittency of renewable energy has hindered the deployment of large-scale intermittent renewable energy, which, therefore, has necessitated the development of advanced large-scale energy storage technologies. The use of large-scale energy storage can effectively improve the efficiency of energy resource utilization, and increase the use of variable renewable resources, the energy access, and the end-use sector electrification (e.g., electrification of transport sector). This Special Issue will provide a platform for presenting the latest research results on the technology development of large-scale energy storage. We welcome research papers about theoretical, methodological and empirical studies, as well as review papers, that provide critical overview on the state of the art of technologies. This special issue is open to all types of energy, such as thermal energy, mechanical energy, electrical energy and chemical energy, using different types of systems, such as phase change materials, batteries, supercapacitors, fuel cells, compressed air, etc., which are applicable to various types of applications, such as heat and power generation, electrical/hybrid transportation, etc.

Solar energy. --- Solar power --- Force and energy --- Renewable energy sources --- Solar radiation

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A wide variety of detail regarding genuine and proprietary research from distinguished authors is presented, ranging from new means of evaluation of the local solar irradiance to the manufacturing technology of photovoltaic cells. Also included is the topic of biotechnology based on solar energy and electricity generation onboard space vehicles in an optimised manner with possible transfer to the Earth. The graphical material supports the presentation, transforming the reading into a pleasant and instructive labor for any interested specialist or student.

Solar energy. --- Solar power --- Force and energy --- Renewable energy sources --- Solar radiation --- Alternative & renewable energy sources & technology

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A collective engages and mirrors the critical need for energy justice and transformation. Solarities considers the possibilities of organizing societies and economies around solar energy, and the challenges of a just and equitable transition away from fossil fuels. Far from presenting solarity as a utopian solution to the climate crisis, it critically examines the ambiguous potentials of solarities: plural, situated, and often contradictory. Here, a diverse collective of activists, scholars, and practitioners critically engage a wide range of relationships and orientations to the sun. They consider the material and infrastructural dimensions of solar power, the decolonial and feminist promises of decentralized energy, solarian relations with more-than-human kin, and the problem of oppressive and weaponized solarities. Solarities imagines-and demands- possibilities for energy justice in this transition.

Solar energy. --- Solar power --- Force and energy --- Renewable energy sources --- Solar radiation --- Social forecasting, future studies --- Solar energy --- Social aspects.

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The overall energy sector calls for a transformation from a fossil-based system to a low-carbon one. At a technology level, significant efforts have been made to provide energy solutions that contribute to a sustainable energy system. However, the actual suitability of these solutions is often not checked. In this sense, the assessment of energy systems from a life-cycle perspective is of paramount importance when it comes to effectively planning the energy sector. While environmental issues are commonly addressed through the use of the Life Cycle Assessment (LCA) methodology, the comprehensive evaluation of the economic and social aspects of energy systems often remains ignored or underdeveloped. This book consists of a set of scientific works addressing the analysis of energy systems from a (life-cycle) technical, economic, environmental and/or social standpoint. Case studies at and beyond the technology level are included, some of them involving a combination of life cycle and non-life cycle approaches for the thorough evaluation of energy systems under the umbrella of sustainability.

zinc (Zn) --- electrowinning (EW) --- activated Carbons (ACs) --- adsorbate --- liquid phase space velocity (LHSV) --- temperature --- bioeconomy --- life cycle assessment --- multi-criteria decision analysis --- sustainability --- thermal energy --- wood --- LCC optimization --- building energy simulation --- energy system optimization --- energy renovation --- historic building district --- district heating system --- biobutanol --- clean combustion --- Scilab simulations --- SimaPro --- CO2 emission --- fuel production management --- environmental impact --- non-edible resources for biofuel production --- GIS --- concentrated solar power --- solar thermochemistry --- life-cycle costs --- cost supply --- geographical potential --- sustainable --- alternative