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Numerische Untersuchung des Wärmeübertragungsverhaltens in unterschiedlichen porösen Medien

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Book Series: Schriftenreihe des Instituts für Angewandte Materialien, Karlsruher Institut für Technologie ISSN: 21929963 ISBN: 9783731502524 Year: Volume: 42 Pages: VI, 225 p. DOI: 10.5445/KSP/1000042451 Language: GERMAN
Publisher: KIT Scientific Publishing
Subject: Technology (General)
Added to DOAB on : 2019-07-30 20:01:57
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This presentation deals with simulation studies that will be interpreted as numerical experiments. Porous structures are modelled in three dimensions (microstructure models). Heat transfer and pressure drop of the flow through a porosity is analysed using the numerical solution of the Navier-Stokes equations (CFD). Empirical correlations for simplified calculations are presented that can be used by engineers for rough estimates and design of components with porosities like metal foam.

Numerical analysis of Lattice Boltzmann Methods for the heat equation on a bounded interval

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ISBN: 9783866440692 Year: Pages: VII, 190 p. DOI: 10.5445/KSP/1000005304 Language: ENGLISH
Publisher: KIT Scientific Publishing
Subject: Mathematics
Added to DOAB on : 2019-07-30 20:02:02

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Lattice Boltzmann methods are a promising approach for the numerical solution of fluid-dynamic problems. We consider the one-dimensional Goldstein-Taylor model with the aim to answer some of the questions concerning the numerical analysis of lattice Boltzmann schemes. Discretizations for the solution of the heat equation are presented for a selection of boundary conditions. Stability and convergence of the solutions are proved by employing energy estimates and explicit Fourier representations.

Anpassungsrelevante Klimaänderungen für städtische Baustrukturen und Wohnquartiere

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Book Series: Wissenschaftliche Berichte des Instituts für Meteorologie und Klimaforschung des Karlsruher Instituts für Technologie ISSN: 1795619 ISBN: 9783731507710 Year: Volume: 77 Pages: XI, 305 p. DOI: 10.5445/KSP/1000080685 Language: GERMAN
Publisher: KIT Scientific Publishing
Subject: Physics (General)
Added to DOAB on : 2019-07-28 18:37:01
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The influence of climate change on urban heat island intensity is analyzed for the city of Karlsruhe, southwestern Germany. First, its present diurnal and seasonal as well as spatial modes of variability are characterized by means of different meteorological observation datasets. One focus is on temperature differences during heat events. Second, high-resolution regional climate model data allow for projecting the future development of the urban heat island.

Analyse und Bewertung des Elektrizitätssystems und des Wärmesystems der Wohngebäude in Deutschland

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Book Series: Produktion und Energie / Karlsruher Institut für Technologie, Institut für Industriebetriebslehre und industrielle Produktion u. Deutsch-Französisches Institut für Umweltforschung ISSN: 21942404 ISBN: 9783731506362 Year: Volume: 21 Pages: XLIII, 373 p. DOI: 10.5445/KSP/1000066148 Language: GERMAN
Publisher: KIT Scientific Publishing
Subject: Business and Management
Added to DOAB on : 2019-07-28 18:37:01
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The present work investigates the evolution of the electricity system and the heat system of the residential buildings in Germany until 2050. The aim of the research work relates to the analysis of the temporal evolution of the investigated energy systems as well as of the potential of innovative technologies at the interface of electricity and heat along with the assessment of the goals of climate and energy policy in the heat system of the residential sector.

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.

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