Annual Report 2013 / Institute for Pulsed Power and Microwave Technology = Jahresbericht 2013 / Institut für Hochleistungsimpuls- und Mikrowellentechnik. (KIT Scientific Reports ; 7666)

The Institute for Pulsed Power and Microwave Technology (Institut für Hochleistungsimpuls- und Mikrowellentechnik - IHM) is doing research in the areas of pulsed power and high power microwave technologies. Both, research and development of high power sources as well as related applications are in the focus. Applications for pulsed power technologies are ranging from material processing to bioelectrics. Microwave technologies are focusing on RF sources for electron cyclotron resonance heating and on applications for material processing at microwave frequencies

Green Technologies for Production Processes

This book focuses on original research works about Green Technologies for Production Processes, including discrete production processes and process production processes, from various aspects that tackle product, process, and system issues in production. The aim is to report the state-of-the-art on relevant research topics and highlight the barriers, challenges, and opportunities we are facing. This book includes 22 research papers and involves energy-saving and waste reduction in production processes, design and manufacturing of green products, low carbon manufacturing and remanufacturing, management and policy for sustainable production, technologies of mitigating CO2 emissions, and other green technologies

Process Modeling in Pyrometallurgical Engineering

The Special Issue presents almost 40 papers on recent research in modeling of pyrometallurgical systems, including physical models, first-principles models, detailed CFD and DEM models as well as statistical models or models based on machine learning. The models cover the whole production chain from raw materials processing through the reduction and conversion unit processes to ladle treatment, casting, and rolling. The papers illustrate how models can be used for shedding light on complex and inaccessible processes characterized by high temperatures and hostile environment, in order to improve process performance, product quality, or yield and to reduce the requirements of virgin raw materials and to suppress harmful emissions

Nuclear Fusion Programme: Annual Report of the Association Karlsruhe Institute of Technology/EURATOM ; January 2011 - December 2011 (KIT Scientific Reports ; 7621)

The Karlsruhe Institute of Technology (KIT) is working in the framework of the European Fusion Programme on key technologies in the areas of superconducting magnets, microwave heating systems (Electron-Cyclotron-Resonance-Heating, ECRH), the deuterium-tritium fuel cycle, He-cooled breeding blankets, a He-cooled divertor and structural materials, as well as refractory metals for high heat flux applications including a major participation in the preparation of the international IFMIF project

Proceedings of the 20th Automotive Technology Development Contractors' Coordination Meeting

Thirty-four papers are included which cover the following topics: stirling technology, gas turbines, ceramics, heavy duty transport, industry perspectives, and alternative fuels

Advanced Technologies for Biomass

The use of biomass and organic waste material as a primary resource for the production of fuels, chemicals, and electric power is of growing significance in light of the environmental issues associated with the use of fossil fuels. For this reason, it is vital that new and more efficient technologies for the conversion of biomass are investigated and developed. Today, various advanced methods can be used for the conversion of biomass. These methods are broadly classified into thermochemical conversion, biochemical conversion, and electrochemical conversion. This book collects papers that consider various aspects of sustainability in the conversion of biomass into valuable products, covering all the technical stages from biomass production to residue management. In particular, it focuses on experimental and simulation studies aiming to investigate new processes and technologies on the industrial, pilot, and bench scales

Space Resources Roundtable Six

Covers developing and utilizing the resources of space, including the Moon, Mars, and asteroids.Sponsored by: Colorado School of Mines, Lunar and Planetary Institute, Space Resources Roundtable, Inc.Steering Committee: Joe Burris, WorldTradeNetwork, R. Scott Baird, NASA Johnson Space Center, David Criswell, University of Houston, Michael B. Duke, Colorado School of Mines, Stephen Mackwell, Lunar and Planetary Institute, Clyde Parish, NASA Kennedy Space Center, Sanders Rosenberg, InSpace Propulsion, Inc., Frank Schowengerdt, NASA Headquarters, G. Jeffrey Taylor, University of Hawai'i, Lawrence Taylor, University a/Tennessee.PARTIAL CONTENTS: Dielectric Constant Measurements on Lunar Soils and- Terrestrial Minerals / R. C. Anderson, M. G. Buehler, S. Seshardri, and M. G. Schaap--Dust Mitigation of Astronaut Spacesuits / H. Angel, P. Thanh, and M Nakagawa--Toward a Sustainable Mars Infrastructure / R. L. Ash--Granular Materials and Risks In ISRU / R. P. Behringer and R. A. Wilkinson--ISRU Technology Modeling and Analysis / B. R. Blair, J. Diaz, B. Ruiz, and M. B. Duke--Costs and Benefits of ISRU-Based Human Space Exploration / B. R. Blair, M. B. Duke, J. Diaz, and B. Ruiz--Report on the Construction and Testing of a Bucket Wheel Excavator / D. S. Boucher and J Richard--The Lunar Polar Illumination Environment: What We Know & What We Don't / D. B. J. Bussey and P. D. Spudis--Lunar Simulants: JSC-l is Gone; The Need for New Standardized Root Simulants / J. L. Carter, D. S. McKay, L. A. Taylor, and W. D. Carrier III--Space Transportation for a Lunar Resources Base (LRB) / H. P. Davis

Additive Manufacturing of Tungsten via Selective Laser Melting and Electron Beam Melting

This thesis explores powder bed Additive Layer Manufacturing (ALM) of pure tungsten. Two ALM processes were investigated; Selective Laser Melting (SLM) and Electron Beam Melting (EBM). An optimal experimental design approach was adopted to investigate the effect of process parameters on parts produced. Analysis of the SLM process was carried out using a Response Surface Methodology (RSM). The beam power in SLM significantly effected porosity; a laser power of at least 400 Watts was required to produce near dense parts (0.23% porosity). A valid response model could not be fitted to the SLM experimental data. Cracks propagated throughout SLM components as the porosity was reduced. This was attributed to stress imparted during processing and an operating temperature below the Ductile to Brittle Transition Temperature (DBTT). An Arcam EBM system was modified in order to reduce the build volume, allowing small volume materials development. A RSM was adopted to model the effects of EBM process parameters on defects within parts. Specifically, hatch spacing, beam current, and beam speed were investigated and shown to all have a significant effect on porosity and geometric accuracy. Second order models were generated to fit the experiential data, representing the response well (R^2 = 99% and R^2 = 93%) a minimum porosity of 0.04% was achieved. The properties of EBM tungsten were characterised; three point bending and Weibull analysis was used to determine characteristic strength (340MPa). Hardness and modulus was measured via nanoidentation was found to vary as a function of the position within samples. This was attributed to residual stress imparted during processing. EBSD revealed a strong [111]texture. This was attributed to the angle of thermal gradients in the melt pool

Materials Science and Technology

Materials are important to mankind because of the benefits that can be derived from the manipulation of their properties, for example electrical conductivity, dielectric constant, magnetization, optical transmittance, strength and toughness. Materials science is a broad field and can be considered to be an interdisciplinary area. Included within it are the studies of the structure and properties of any material, the creation of new types of materials, and the manipulation of a material's properties to suit the needs of a specific application. The contributors of the chapters in this book have various areas of expertise. therefore this book is interdisciplinary and is written for readers with backgrounds in physical science. The book consists of fourteen chapters that have been divided into four sections. Section one includes five chapters on advanced materials and processing. Section two includes two chapters on bio-materials which deal with the preparation and modification of new types of bio-materials. Section three consists of three chapters on nanomaterials, specifically the study of carbon nanotubes, nano-machining, and nanoparticles. Section four includes four chapters on optical materials

Друга міжнародна конференція зі сталого майбутнього: екологічні, технологічні, соціальні та економічні питання (ICSF 2021). Кривий Ріг, Україна, 19-21 травня 2021 року

Second International Conference on Sustainable Futures: Environmental, Technological, Social and Economic Matters (ICSF 2021). Kryvyi Rih, Ukraine, May 19-21, 2021.Друга міжнародна конференція зі сталого майбутнього: екологічні, технологічні, соціальні та економічні питання (ICSF 2021). Кривий Ріг, Україна, 19-21 травня 2021 року