Conference Proceeding
Refine
Year of publication
Institute
- Fachbereich Luft- und Raumfahrttechnik (198) (remove)
Has Fulltext
- no (198) (remove)
Document Type
- Conference Proceeding (198) (remove)
Keywords
- hydrogen (4)
- solar sail (4)
- MASCOT (3)
- GOSSAMER-1 (2)
- Hydrogen (2)
- Micromix (2)
- NOx emissions (2)
- PCM (2)
- Spacecraft (2)
- Trajectory Optimization (2)
- combustor development (2)
- fuels (2)
- industrial gas turbine (2)
- multiple NEA rendezvous (2)
- small spacecraft (2)
- Aircraft design (1)
- Antarctica (1)
- Asteroid Deflection (1)
- Attitude dynamics (1)
- Automated Optimization (1)
- Bumblebees (1)
- Capacity Building Higher Education (1)
- Correlations (1)
- Design rules (1)
- Drag (1)
- ESATAN (1)
- Electrical Flight (1)
- Emissions (1)
- Erasmus+ United (1)
- European Framework and South East Asia (1)
- Evolutionary Neurocontrol (1)
- Flame residence time (1)
- Flame temperature (1)
- Flight Mechanics (1)
- Flight Tests (1)
- Flight control (1)
- Fuel-flexibility (1)
- GEO (1)
- Gas turbine combustion (1)
- Geometry (1)
- Gossamer (1)
- Gossamer structures (1)
- Green aircraft (1)
- Guide Tube (1)
- Hybrid Propellants (1)
- Hybrid-electric aircraft (1)
- ITS (1)
- Inflight Regeneration, Recuperation (1)
- Infused Thermal Solutions (1)
- Interplanetary flight (1)
- Jupiter (1)
- Kalman filter (1)
- LEO (1)
- Low-Thrust Propulsion (1)
- MAV (1)
- Malaysian Automotive Industry (1)
- Malaysian automotive industry (1)
- Mars (1)
- Multiphase (1)
- NOx (1)
- Nozzle (1)
- Obstacle avoidance (1)
- Orbital dynamics (1)
- PEM fuel cells (1)
- PHILAE (1)
- Planetary Protection (1)
- Planetary exploration (1)
- Propeller Aerodynamics (1)
- Reusable Rocket Engines (1)
- Sequence-Search (1)
- Small Solar System Body Lander (1)
- Small Spacecraft (1)
- Solar Power Sail (1)
- Solar Sail (1)
- Solar sail (1)
- Spacecraft Trajectory Optimization (1)
- Statistics (1)
- Suction (1)
- TICTOP (1)
- Technology Transfer (1)
- UAV (1)
- UTeM Engineering Knowledge Transfer Unit (1)
- Unmanned Air Vehicle (1)
- aircraft engine (1)
- asteroid lander (1)
- asteroid sample return (1)
- avalanche (1)
- aviation application (1)
- combustion (1)
- combustor (1)
- control system (1)
- electrically driven compressors (1)
- electro mobility (1)
- emission (1)
- emission index (1)
- engine demonstration (1)
- flotilla missions (1)
- fuel cell (1)
- fuel cell systems (1)
- gas turbine (1)
- habitability (1)
- health management systems (1)
- heliosphere (1)
- ice moons (1)
- icy moons (1)
- internal combustion engine (1)
- ion propulsion (1)
- latent heat (1)
- lattice (1)
- life detection (1)
- low-thrust (1)
- low-thrust trajectory optimization (1)
- near-Earth asteroid (1)
- nitric oxides (1)
- passive thermal control (1)
- planetary defence (1)
- responsive space (1)
- sample return (1)
- small solar system body characterisation (1)
- small spacecraft asteroid lander (1)
- small spacecraft solar sail (1)
- snow (1)
- solar sails (1)
- solar system (1)
- space missions (1)
- star tracker (1)
- subroutine (1)
- system engineering (1)
- technology transfer (1)
- thermo-physical (1)
- underwater vehicle (1)
In Anbetracht weltweit zunehmend strengerer klimapolitischer
Ziele steigt auch der Druck für Nutzfahrzeughersteller, effizientere und umweltfreundlichere
Technologien zu entwickeln. Den Blick bei der Bewertung dieser
ausschließlich auf die Fahrzeugnutzung zu richten, ist längst nicht mehr zufriedenstellend.
Im Rahmen dieser Analyse wird ein gegenwärtig auf dem Markt erwerblicher
und in deutschen Städten bereits seit Jahren betriebener Hybridbus
energetisch und ökologisch mit einem konventionell angetriebenen, nahezu baugleichen
Modell entlang des Lebensweges bewertet.
Nach Definition von Ziel und Untersuchungsrahmen wird ein Überblick auf bereits
durchgeführte Lebenszyklusanalysen zu Hybridbussen im Stadtverkehr gegeben
und Schlussfolgerungen für die anschließende Analyse abgeleitet. Diese
wird im Rahmen einer energetischen und ökologischen Bewertung beider Produktsysteme
anhand der Parameter "Primärenergieeinsatz" und "CO2äq Emissionen"
praktiziert. Der Fahrzeugrumpf beider Fahrzeuge des gleichen Modells
wird dabei als einheitlich angenommen, sodass bei dem Vergleich der Herstellung
vereinfacht nur die sich unterscheidenden Komponenten des Antriebstranges
berücksichtigt werden. Die Resultate der Wirkungsabschätzung werden als
Differenz des Hybridbusses gegenüber dem Referenzfahrzeug über die einzelnen
Lebenszyklusphasen dargestellt. Schließlich werden Prognosen getroffen, ab
welcher Strecke die bei der Herstellung erzeugten höheren CO2äq Emissionen
des Hybridantriebstranges gegenüber dem Referenzmodell ausgeglichen werden.
Development and Testing of a Low NOx Micromix Combustion Chamber for an Industrial Gas Turbine
(2015)
Attitude and Orbital Dynamics Modeling for an Uncontrolled Solar-Sail Experiment in Low-Earth Orbit
(2015)
Numerical Study on Increased Energy Density for the DLN Micromix Hydrogen Combustion Principle
(2014)
Enceladus explorer - A maneuverable subsurface probe for autonomous navigation through deep ice
(2012)
Euler-based induced drag estimation for highly non-planar lifting systems during conceptional design
(2013)
Wing weight estimation methodology for highly non-planar lifting systems during conceptual design
(2013)
Auslegung der CFK-Sandwich-Rumpfstruktur eines Hubschraubers mit der Methode der Finiten Elemente
(1994)
Hydrostatic propeller drive
(2011)
Computational aeroelastic analysis and design of the HIRENASD wind tunnel wing model and tests
(2007)
Numerical models have become an essential part of snow avalanche engineering. Recent
advances in understanding the rheology of flowing snow and the mechanics of entrainment and
deposition have made numerical models more reliable. Coupled with field observations and historical
records, they are especially helpful in understanding avalanche flow in complex terrain. However, the
application of numerical models poses several new challenges to avalanche engineers. A detailed
understanding of the avalanche phenomena is required to specify initial conditions (release zone
dimensions and snowcover entrainment rates) as well as the friction parameters, which are no longer
based on empirical back-calculations, rather terrain roughness, vegetation and snow properties. In this
paper we discuss these problems by presenting the computer model RAMMS, which was specially
designed by the SLF as a practical tool for avalanche engineers. RAMMS solves the depth-averaged
equations governing avalanche flow with first and second-order numerical solution schemes. A
tremendous effort has been invested in the implementation of advanced input and output features.
Simulation results are therefore clearly and easily visualized to simplify their interpretation. More
importantly, RAMMS has been applied to a series of well-documented avalanches to gauge model
performance. In this paper we present the governing differential equations, highlight some of the input
and output features of RAMMS and then discuss the simulation of the Gatschiefer avalanche that
occurred in April 2008, near Klosters/Monbiel, Switzerland.