Refine
Year of publication
Document Type
- Article (3149)
- Conference Proceeding (1016)
- Part of a Book (184)
- Book (144)
- Doctoral Thesis (30)
- Patent (25)
- Other (9)
- Report (9)
- Preprint (4)
- Poster (3)
- Talk (3)
- Master's Thesis (2)
- Working Paper (2)
- Bachelor Thesis (1)
- Contribution to a Periodical (1)
- Habilitation (1)
Language
- English (4583) (remove)
Has Fulltext
- no (4583) (remove)
Keywords
- Gamification (6)
- avalanche (6)
- Earthquake (5)
- Enterprise Architecture (5)
- MINLP (5)
- solar sail (5)
- Diversity Management (4)
- Energy storage (4)
- Engineering optimization (4)
- LAPS (4)
- Natural language processing (4)
- Papierkunst (4)
- Power plants (4)
- Seismic design (4)
- field-effect sensor (4)
- frequency mixing magnetic detection (4)
- hydrogen (4)
- metal structure (4)
- snow (4)
- steel (4)
Institute
- Fachbereich Medizintechnik und Technomathematik (1545)
- Fachbereich Elektrotechnik und Informationstechnik (686)
- IfB - Institut für Bioengineering (560)
- Fachbereich Energietechnik (552)
- INB - Institut für Nano- und Biotechnologien (532)
- Fachbereich Chemie und Biotechnologie (522)
- Fachbereich Luft- und Raumfahrttechnik (463)
- Fachbereich Maschinenbau und Mechatronik (261)
- Fachbereich Wirtschaftswissenschaften (196)
- Solar-Institut Jülich (160)
- Fachbereich Bauingenieurwesen (146)
- ECSM European Center for Sustainable Mobility (75)
- MASKOR Institut für Mobile Autonome Systeme und Kognitive Robotik (62)
- Fachbereich Gestaltung (24)
- Nowum-Energy (24)
- Institut fuer Angewandte Polymerchemie (23)
- Sonstiges (21)
- Fachbereich Architektur (20)
- Freshman Institute (18)
- Kommission für Forschung und Entwicklung (18)
Enceladus explorer - A maneuverable subsurface probe for autonomous navigation through deep ice
(2012)
Energieeffizienz und Energiemanagement : ein Überblick heutiger Möglichkeiten und Notwendigkeiten
(2012)
ETHICS is concerned with evaluating, measuring and making improvements in the thermal and energy performance of steel-clad and steel-framed buildings. It addresses basic building physics performance at a laboratory and full-scale level, and the preparation of design guidance for commercial, industrial and residential buildings. It includes the development of design tools to assist users in assessing whole-building performance, and calibrates these tools against whole-building measurements, which will be obtained from this research. Opportunities for renewable energy and other energy-saving features will be assessed. This project focuses on objectives that are of particular interest for the design of new steel constructions regarding energy efficiency. ETHICS investigates the as-built performance by on-site tests regarding air tightness and heat transfer properties of the building envelope and by monitoring the energy consumption and thermal comfort of selected up-to-date steel buildings. As energy efficiency is a key requirement for design and construction of buildings in the future, this project provides well-founded scientific data, which prove the high energy performance of current steel constructions and work out details for further improvements to maintain and extend the position of steel products in the construction sector.
New information regarding the influence of a stepped chute on the hydraulic performance of the United States Bureau of Reclamation (Reclamation) Type III hydraulic jump stilling basin is presented for design (steady) and adverse (decreasing tailwater) conditions. Using published experimental data and computational fluid dynamics (CFD) models, this paper presents a detailed comparison between smooth-chute and stepped-chute configurations for chute slopes of 0.8H:1V and 4H:1V and Froude numbers (F) ranging from 3.1 to 9.5 for a Type III basin designed for F = 8. For both stepped and smooth chutes, the relative role of each basin element was quantified, up to the most hydraulic extreme case of jump sweep-out. It was found that, relative to a smooth chute, the turbulence generated by a stepped chute causes a higher maximum velocity decay within the stilling basin, which represents an enhancement of the Type III basin’s performance but also a change in the relative role of the basin elements. Results provide insight into the ability of the CFD models [unsteady Reynolds-averaged Navier-Stokes (RANS) equations with renormalization group (RNG) k-ϵ turbulence model and volume-of-fluid (VOF) for free surface tracking] to predict the transient basin flow structure and velocity profiles. Type III basins can perform adequately with a stepped chute despite the effects steps have on the relative role of each basin element. It is concluded that the classic Type III basin design, based upon methodology by reclamation specific to smooth chutes, can be hydraulically improved for the case of stepped chutes for design and adverse flow conditions using the information presented herein.
The energy-efficiency of technical systems can be improved by a systematic design approach. Technical Operations Research (TOR) employs methods known from Operations Research to find a global optimal layout and operation strategy of technical systems. We show the practical usage of this approach by the systematic design of a decentralized water supply system for skyscrapers. All possible network options and operation strategies are modeled by a Mixed-Integer Nonlinear Program. We present the optimal system found by our approach and highlight the energy savings compared to a conventional system design.