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Divertor Development for a Future Fusion Power Plant

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Book Series: Schriftenreihe des Instituts für Angewandte Materialien, Karlsruher Institut für Technologie ISSN: 21929963 ISBN: 9783866447387 Year: Volume: 1 Pages: VI, 136 p. DOI: 10.5445/KSP/1000024270 Language: ENGLISH
Publisher: KIT Scientific Publishing
Subject: Technology (General)
Added to DOAB on : 2019-07-30 20:02:00
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Nuclear fusion is considered as a future source of sustainable energy supply. Since the H-mode discovery in ASDEX experiment ""Divertor I"" in 1982, the divertor has been an integral part of all modern tokamaks and stellarators. The major goal of this thesis is to develop a feasible divertor design for a fusion power plant to be built after ITER. The thesis describes the approach in the conceptual development of a helium-cooled divertor and the methods of verification and validation of the design.

Future Space-Transport-System Components under High Thermal and Mechanical Loads

Authors: --- --- --- --- et al.
Book Series: Notes on Numerical Fluid Mechanics and Multidisciplinary Design ISBN: 9783030538477 Year: Pages: 419 DOI: 10.1007/978-3-030-53847-7 Language: English
Publisher: Springer Nature
Subject: Agriculture (General)
Added to DOAB on : 2020-11-19 00:20:02
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This open access book presents the findings of Collaborative Research Center Transregio 40 (TRR40), initiated in July 2008 and funded by the German Research Foundation (DFG). Gathering innovative design concepts for thrust chambers and nozzles, as well as cutting-edge methods of aft-body flow control and propulsion-component cooling, it brings together fundamental research undertaken at universities, testing carried out at the German Aerospace Center (DLR) and industrial developments from the ArianeGroup. With a particular focus on heat transfer analyses and novel cooling concepts for thermally highly loaded structures, the book highlights the aft-body flow of the space transportation system and its interaction with the nozzle flow, which are especially critical during the early phase of atmospheric ascent. Moreover, it describes virtual demonstrators for combustion chambers and nozzles, and discusses their industrial applicability. As such, it is a timely resource for researchers, graduate students and practitioners.

Optimization of Heat and Mass Exchange

Authors: --- ---
ISBN: 9783039287420 / 9783039287437 Year: Pages: 182 DOI: 10.3390/books978-3-03928-743-7 Language: eng
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Technology (General) --- General and Civil Engineering
Added to DOAB on : 2020-06-09 16:38:57
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This Special Issue of Processes operates on the basis of a rigorous peer-review with a single-blind assessment and at least two independent reviewers, thereby ensuring a high quality final product. I would like to thank our reviewers, for providing the authors with constructive comments, and Editorial Board, for their professional advice that led to the final decision. I am sure that, in coming years, readers of this Special Issue will find the scientific manuscripts interesting and beneficial to their research.

Approaches, Advances and Applications in Sustainable Development of Smart Cities

Authors: --- ---
ISBN: 9783039280124 / 9783039280131 Year: Pages: 308 DOI: 10.3390/books978-3-03928-013-1 Language: eng
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Economics
Added to DOAB on : 2020-06-09 16:38:57
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This book aims to contribute to the conceptual and practical knowledge pools in order to improve the research and practice on the sustainable development of smart cities by bringing an informed understanding of the subject to scholars, policymakers, and practitioners. This book seeks articles offering insights into the sustainable development of smart cities by providing in-depth conceptual analyses and detailed case study descriptions and empirical investigations. This way, the book will form a repository of relevant information, material, and knowledge to support research, policymaking, practice, and transferability of experiences to address aforementioned challenges. The scope of the book includes the following broad areas, with a particular focus on the approaches, advances, and applications in the sustainable development of smart cities: • Theoretical underpinnings and analytical and policy frameworks; • Methodological approaches for the evaluation of smart and sustainable cities; • Technological developments in the techno-enviro nexus; • Global best practice smart city case investigations and reports; • Geo-design and applications concerning desired urban outcomes; • Prospects, implications, and impacts concerning the future of smart and sustainable cities.

Keywords

tourist island --- innovation hub --- knowledge-based urban development --- knowledge and innovation economy --- smart city --- urban branding --- urban policy --- economic resilience --- Florianópolis --- Brazil --- city branding --- sustainable urban development --- rentier state --- Qatar --- emirates --- smart cities --- mobility --- visioning --- policy --- energy budget --- land cover ratio --- sensible heat flux --- heat mitigation --- thermal environment improvement --- sustainability --- in-situ validation --- spatial typification by heat flux --- smart cities --- commons --- digital commons --- governance --- e-government --- smart governance --- new public service --- Brazil --- smart cities --- smart display --- smart placemaking --- human–computer interaction --- user characteristics --- media façade --- intuitive interaction --- living-lab --- optimal cities --- energy autonomy --- low-carbon resources --- multi-energy networks --- parametric optimisation --- CO2 networks --- drinking water networks --- reliability --- economic cost --- model predictive control --- linear parameter varying --- smart city --- multi-agent systems --- gamification --- photovoltaics --- renewable energy systems --- spatial databases --- climate change --- climate emergency --- climate crisis --- global warming --- sustainable urban development --- sustainable development goals --- smart cities --- disasters --- urban health --- urban policy --- smart cities --- Shenzhen --- Chinese cities --- latecomer’s advantage --- sustainability --- smart city --- sustainable smart city --- smart infrastructure --- smart urban technology --- smart governance --- sustainable city --- sustainable urban development --- knowledge-based urban development --- climate change --- urban informatics --- urban policy

Continuous Casting

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ISBN: 9783039213214 9783039213221 Year: Pages: 250 DOI: 10.3390/books978-3-03921-322-1 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Technology (General) --- Chemical Engineering
Added to DOAB on : 2019-08-28 11:21:27
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Continuous casting is an industrial process whereby molten metal is solidified into a semi-finished billet, bloom, or slab for subsequent rolling in finishing mills; it is the most frequently used process to cast not only steel, but also aluminium and copper alloys. Since its widespread introduction for steel in the 1950s, it has evolved to achieve improved yield, quality, productivity and cost efficiency. It allows lower-cost production of metal sections with better quality, due to the inherently lower costs of continuous, standardized production of a product, as well as providing increased control over the process through automation. Nevertheless, challenges remain and new ones appear, as ways are sought to minimize casting defects and to cast alloys that could originally only be cast via other means. This Special Issue of the journal ""Metals"" consists of 14 research articles that cover many aspects of experimental work and theoretical modelling related to the ongoing development of continuous casting processes.

Keywords

slab continuous casting --- hybrid simulation model --- uneven secondary cooling --- numerical simulation --- molten steel flow --- solidification --- inclusion motion --- inclusion entrapment --- billet continuous casting --- swirling flow tundish --- multiphase flow --- heat transfer --- mold --- continuous casting --- numerical simulation --- round bloom --- continuous casting --- final electromagnetic stirring --- electromagnetic field --- polycrystalline model --- pores --- inclusions --- mechanism --- beam blank --- crystal --- propagation --- asymptotic analysis --- numerical simulation --- continuous casting --- air mist spray cooling --- continuous casting --- heat flux --- HTC --- secondary cooling --- thin-slab cast direct-rolling --- austenite grain coarsening --- grain growth control --- liquid core reduction --- secondary cooling --- two-phase pinning --- annular argon blowing --- upper nozzle --- flow behavior --- argon gas distribution --- tundish --- continuous casting --- bulge deformation --- thermomechanical coupling --- segmented roller --- finite element analysis --- steel tundish --- baffle --- flow field --- velocity --- PIV --- multi-source information fusion --- data stream --- continuous casting --- roll gap value --- prediction --- global optimization --- support vector regression --- variational mode decomposition --- empirical mode decomposition --- support vector regression --- mold level --- continuous casting --- magnetohydrodynamics --- fluid flow --- bubbles --- inclusions --- entrapment --- entrainment --- heat transfer --- solidification --- slab mold --- continuous casting --- n/a

Remote Sensing of Evapotranspiration (ET)

Authors: ---
ISBN: 9783039216024 9783039216031 Year: Pages: 240 DOI: 10.3390/books978-3-03921-603-1 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Technology (General) --- Biotechnology
Added to DOAB on : 2019-12-09 11:49:15
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Evapotranspiration (ET) is a critical component of the water and energy balances, and the number of remote sensing-based ET products and estimation methods has increased in recent years. Various aspects of remote sensing of ET are reported in the 11 papers published in this book. The major research areas covered by this book include inter-comparison and performance evaluation of widely used one- and two-source energy balance models, a new dual-source model (Soil Plant Atmosphere and Remote Sensing Evapotranspiration, SPARSE), and a process-based model (ETMonitor); assessment of multi-source (e.g., remote sensing, reanalysis, and land surface model) ET products; development or improvement of data fusion frameworks to predict continuous daily ET at a high spatial resolution (field-scale or 30 m) by fusing the advanced spaceborne thermal emission reflectance radiometer (ASTER), the moderate resolution imaging spectroradiometer (MODIS), and Landsat data; and investigating uncertainties in ET estimates using an ET ensemble composed of several land surface models and diagnostic datasets. The effects of the differences between ET products on water resources and ecosystem management were also investigated. More accurate ET estimates and improved understanding of remotely sensed ET products are crucial for maximizing crop productivity while minimizing water losses and management costs.

Symmetry and Fluid Mechanics

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ISBN: 9783039284269 9783039284276 Year: Pages: 446 DOI: 10.3390/books978-3-03928-427-6 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Technology (General) --- General and Civil Engineering
Added to DOAB on : 2020-04-07 23:07:09
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Since the 1980s, attention has increased in the research of fluid mechanics due to its wide application in industry and phycology. Major advances have occurred in the modeling of key topics such Newtonian and non-Newtonian fluids, nanoparticles, thermal management, and physiological fluid phenomena in biological systems, which have been published in this Special Issue on symmetry and fluid mechanics for Symmetry. Although, this book is not a formal textbook, it will be useful for university teachers, research students, and industrial researchers and for overcoming the difficulties that occur when considering the nonlinear governing equations. For such types of equations, obtaining an analytic or even a numerical solution is often more difficult. This book addresses this challenging job by outlining the latest techniques. In addition, the findings of the simulation are logically realistic and meet the standard of sufficient scientific value.

Keywords

stagnation point flow --- numerical solution --- magnetic field --- nanofuid --- unsteady rotating flow --- porous medium --- aqueous suspensions of CNT’s --- nonlinear thermal radiation --- viscous dissipation effect --- HAM --- chemical reaction --- activation energy --- peristalsis --- couple stress fluid --- nanoparticle --- Keller-box method --- Newtonian heating --- nonlinear thermal radiation --- nonlinear stretching cylinder --- homogeneous/heterogeneous reactions --- nanofluid --- steady laminar flow --- nanofluid --- heat source/sink --- magnetic field --- stretching sheet --- SWCNT/MWCNT nanofluid --- thin needle --- classical and fractional order problems --- APCM technique --- SWCNTs --- MWCNTs --- stretched surface --- rotating system --- nanofluid --- MHD --- thermal radiation --- HAM --- nonlinear hydroelastic waves --- uniform current --- thin elastic plate --- solitary waves --- PLK method --- Permeable walls --- suction/injection --- nanofluids --- porous medium --- mixed convection --- magnetohydrodynamic (MHD) --- dual solution --- stability analysis --- Darcy Forchheimer model --- nanofluid --- exponential sheet --- Jeffrey fluid --- laminar g-Jitter flow --- inclined stretching sheet --- heat source/sink --- Magnetohydrodynamic (MHD) --- Jefferey, Maxwell and Oldroyd-B fluids --- Cattaneo–Christov heat flux --- homogeneous–heterogeneous reactions --- analytical technique --- Numerical technique --- viscous fluid --- Caputo–Fabrizio time-fractional derivative --- Laplace and Fourier transformations --- side walls --- oscillating shear stress --- forced convection --- microducts --- Knudsen number --- Nusselt number --- artificial neural networks --- particle swarm optimization --- Casson fluid --- chemical reaction --- cylinder --- heat generation --- magnetohydrodynamic (MHD) --- slip --- Carreau fluid --- Cattaneo–Christov heat flux model --- convective heat boundary condition --- temperature dependent thermal conductivity --- homogeneous-heterogeneous reactions --- integer and non-integer order derivatives --- GO-W/GO-EG nanofluids --- Marangoni convection --- FDE-12 numerical method --- couple stress fluid --- Hafnium particles --- Couette–Poiseuille flow --- shooting method --- magnetic field --- Darcy–Brinkman porous medium --- viscous dissipation --- slip conditions --- porous dissipation --- permeable sheet --- stretchable rotating disk --- CNTs (MWCNTs and SWCNTs) --- velocity slip --- convective boundary condition --- OHAM --- Casson fluid model --- rotating rigid disk --- nanoparticles --- Magnetohydrodynamics (MHD) --- Oil/MWCNT nanofluid --- heat transfer --- finite volume method --- laminar flow --- slip coefficient --- microchannel --- arched surface --- nonlinear thermal radiation --- molecular diameter --- Al2O3 nanoparticles --- streamlines --- isotherms --- RK scheme --- peristaltic transport --- tapered channel --- porous medium --- smart pumping for hemodialysis --- thermal radiation --- compressible viscous flow --- symmetric linear equations --- generalized finite difference scheme --- kernel gradient free --- Lagrangian approach --- Newtonian and non-Newtonian fluids --- nanofluids and particle shape effects --- convective heat and mass transfer --- steady and unsteady flow problems --- multiphase flow simulations --- fractional order differential equations --- thermodynamics --- physiological fluid phenomena in biological systems

Innovation Issues in Water, Agriculture and Food

Authors: ---
ISBN: 9783039211654 9783039211661 Year: Pages: 406 DOI: 10.3390/books978-3-03921-166-1 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Science (General) --- Biology --- Agriculture (General) --- Environmental Sciences
Added to DOAB on : 2019-08-28 11:21:27
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In a worldwide context of ever-growing competition for water and land, climate change, droughts and man-made water scarcity, and less-participatory water governance, agriculture faces the great challenge of producing enough food for a continually increasing population. In this line, this book provides a broad overview of innovation issues in the complex water–agriculture–food nexus, thus also relative to their interconnections and dependences. Issues refer to different spatial scales, from the field or the farm to the irrigation system or the river basin. Multidisciplinary approaches are used when analyzing the relationships between water, agriculture, and food security. The covered issues are quite diverse and include: innovation in crop evapotranspiration, crop coefficients and modeling; updates in research relative to crop water use and saving; irrigation scheduling and systems design; simulation models to support water and agricultural decisions; issues to cope with water scarcity and climate change; advances in water resource quality and sustainable uses; new tools for mapping and use of remote sensing information; and fostering a participative and inclusive governance of water for food security and population welfare. This book brings together a variety of contributions by leading international experts, professionals, and scholars in those diverse fields. It represents a major synthesis and state-of-the-art on various subjects, thus providing a valuable and updated resource for all researchers, professionals, policymakers, and post-graduate students interested in the complex world of the water–agriculture–food nexus.

Keywords

drought classes --- Standardized Precipitation and Evapotranspiration Index (SPEI) --- Standardized Precipitation Index (SPI) --- North Atlantic Oscillation (NAO) --- log-linear modeling --- persistence --- surface irrigation modelling --- precise land levelling --- irrigation systems design --- beneficial water use --- decision support systems (DSS) --- inflow rates --- cut-off time --- crop water requirements --- latent heat flux --- remote sensing --- olive orchard --- spatial variability --- agriculture --- impact --- measures --- nitrogen --- Sensitive Zones --- Tagus River Basin --- Vulnerable Zones --- basal crop coefficients --- crop coefficient curves --- crop transpiration --- Kcb from ground cover --- SIMDualKc model --- soil evaporation --- soil moisture --- soil temperature --- soil nutrient --- crop yield --- Corn --- Black soil --- deficit irrigation --- Fiesta grapes --- drip irrigation --- dried on the vine --- sustained deficit irrigation --- regulated deficit irrigation --- water–energy–food nexus --- policy-making --- stakeholder engagement --- fuzzy cognitive maps --- Spain --- Andalusia --- calibration --- irrigation district --- evapotranspiration --- crop growth --- validation --- Lycopersicon esculentum Mill. --- crop transpiration --- soil evaporation --- drip and basin irrigation --- deficit irrigation --- reform --- Participatory Irrigation Management --- Transfer --- water users association --- biomass --- crop transpiration --- direct forcing --- leaf area index --- soil evaporation --- soil temperature --- soil water storage depletion --- root growth --- maize yield --- semi-arid region --- actual evapotranspiration --- Pampa biome --- eddy covariance --- evaporative fraction --- hysteresis loops --- dry drainage system --- water and salt balance --- groundwater --- evaporation --- salinity --- irrigation scheduling --- wheat --- soil water balance --- new technologies --- smartphone application --- reference evapotranspiration --- local advection --- aridity effects --- satellite observations --- Evapotranspiration --- Irrigation --- Density coefficient --- Dual crop coefficients --- Row crops --- water and land management --- water users’ organization --- water balance --- supply–demand balance model --- organizational analysis --- participatory management --- pressurized irrigation systems --- on-demand operation --- perturbation --- unsteady flow --- hydrant risk indicator --- relative pressure exceedance --- agricultural intensification --- DPSIR --- nitrogen --- pressures --- policies --- surface water pollution --- water-agriculture-food nexus --- crop water use and evapotranspiration --- irrigation scheduling --- design of irrigation systems --- simulation models --- droughts --- irrigation water governance --- economic and environmental issues

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