TY  - CHAP
A1  - Adams, Moritz
A1  - Losekamm, Martin J.
A1  - Czupalla, Markus
T1  - Development of the Thermal Control System for the RadMap Telescope Experiment on the International Space Station
T2  - International Conference on Environmental Systems
Y1  - 2020
N1  - The proceedings for the 2020 International Conference on Environmental Systems, ICES-2020-179
SP  - 1
EP  - 10
ER  - 
TY  - CHAP
A1  - Ayed, Anis Haj
A1  - Striegan, Constantin J. D.
A1  - Kusterer, Karsten
A1  - Funke, Harald
A1  - Kazari, M.
A1  - Horikawa, Atsushi
A1  - Okada, Kunio
T1  - Automated design space exploration of the hydrogen fueled "Micromix" combustor technology
N2  - Combined with the use of renewable energy sources for
its production, Hydrogen represents a possible alternative gas
turbine fuel for future low emission power generation. Due to
its different physical properties compared to other fuels such
as natural gas, well established gas turbine combustion
systems cannot be directly applied for Dry Low NOx (DLN)
Hydrogen combustion. This makes the development of new
combustion technologies an essential and challenging task
for the future of hydrogen fueled gas turbines.
The newly developed and successfully tested “DLN
Micromix” combustion technology offers a great potential to
burn hydrogen in gas turbines at very low NOx emissions.
Aiming to further develop an existing burner design in terms
of increased energy density, a redesign is required in order to
stabilise the flames at higher mass flows and to maintain low
emission levels.
For this purpose, a systematic design exploration has
been carried out with the support of CFD and optimisation
tools to identify the interactions of geometrical and design
parameters on the combustor performance. Aerodynamic
effects as well as flame and emission formation are observed
and understood time- and cost-efficiently. Correlations
between single geometric values, the pressure drop of the
burner and NOx production have been identified as a result.
This numeric methodology helps to reduce the effort of
manufacturing and testing to few designs for single
validation campaigns, in order to confirm the flame stability
and NOx emissions in a wider operating condition field.
Y1  - 2017
N1  - Proceedings of the 1st Global Power and Propulsion Forum
GPPF 2017, Jan 16-18, 2017, Zurich, Switzerland
SP  - 1
EP  - 8
ER  - 
TY  - CHAP
A1  - Baader, Fabian
A1  - Keller, Denis
A1  - Lehmann, Raphael
A1  - Gerber, Lukas
A1  - Reiswich, Martin
A1  - Dachwald, Bernd
A1  - Förstner, Roger
T1  - Operating melting probes for ice penetration under sublimation  conditions and in reduced gravity on a sounding rocket
T2  - Proceedings of the 24th ESA Symposium on European Rocket and Balloon Programmes and related Research
Y1  - 2019
SN  - 0379-6566
N1  - 24th PAC Symposium 2019
ER  - 
TY  - CHAP
A1  - Baader, Fabian
A1  - Reiswich, M.
A1  - Bartsch, M.
A1  - Keller, D.
A1  - Tiede, E.
A1  - Keck, G.
A1  - Demircian, A.
A1  - Friedrich, M.
A1  - Dachwald, Bernd
A1  - Schüller, K.
A1  - Lehmann, R.
A1  - Chojetzki, R.
A1  - Durand, C.
A1  - Rapp, L.
A1  - Kowalski, Julia
A1  - Förstner, R.
T1  - VIPER - Student research on extraterrestrical ice penetration technology
T2  - Proceedings of the 2nd Symposium on Space Educational Activities
N2  - Recent analysis of scientific data from Cassini and earth-based observations gave evidence for a global ocean under a surrounding solid ice shell on Saturn's moon Enceladus. Images of Enceladus' South Pole showed several fissures in the ice shell with plumes constantly exhausting frozen water particles, building up the E-Ring, one of the outer rings of Saturn. In this southern region of Enceladus, the ice shell is considered to be as thin as 2 km, about an order of magnitude thinner than on the rest of the moon. Under the ice shell, there is a global ocean consisting of liquid water. Scientists are discussing different approaches the possibilities of taking samples of water, i.e. by melting through the ice using a melting probe. FH Aachen UAS developed a prototype of maneuverable melting probe which can navigate through the ice that has already been tested successfully in a terrestrial environment. This means no atmosphere and or ambient pressure, low ice temperatures of around 100 to 150K (near the South Pole) and a very low gravity of 0,114 m/s^2 or 1100 μg. Two of these influencing measures are about to be investigated at FH Aachen UAS in 2017, low ice temperature and low ambient pressure below the triple point of water. Low gravity cannot be easily simulated inside a large experiment chamber, though. Numerical simulations of the melting process at RWTH Aachen however are showing a gravity dependence of melting behavior. Considering this aspect, VIPER provides a link between large-scale experimental simulations at FH Aachen UAS and numerical simulations at RWTH Aachen. To analyze the melting process, about 90 seconds of experiment time in reduced gravity and low ambient pressure is provided by the REXUS rocket. In this time frame, the melting speed and contact force between ice and probes are measured, as well as heating power and a two-dimensional array of ice temperatures. Additionally, visual and infrared cameras are used to observe the melting process.
Y1  - 2018
SP  - 1
EP  - 6
ER  - 
TY  - CHAP
A1  - Bagheri, Mohsen
A1  - Schleupen, Josef
A1  - Dahmann, Peter
A1  - Kallweit, Stephan
T1  - A multi-functional device applying for the safe maintenance at high-altitude on wind turbines
T2  - 20th International Conference on Composite Materials : Copenhagen, 19 - 24th July 2015
Y1  - 2015
SP  - 1
EP  - 6
ER  - 
TY  - CHAP
A1  - Ballmann, Josef
A1  - Dafnis, Athanasios
A1  - Braun, Carsten
A1  - Korsch, Helge
A1  - Reimerdes, Hans-Günther
A1  - Braun, Carsten
A1  - Ballmann, Josef
T1  - The HIRENASD project: High Reynolds number aerostructural dynamics experiments in the European Transonic Wind Tunnel (ETW)
T2  - ICAS 2006 proceedings : 25th Congress of the International Council of the Aeronautical Sciences ; Hamburg, Germany, 3 - 8 September, 2006 : 25th International Congress of Aeronautical Sciences
Y1  - 2006
SN  - 0-9533991-7-6
SP  - Paper No. 2006-5.11.2
PB  - Optimage
CY  - Edinburgh
ER  - 
TY  - CHAP
A1  - Barnat, Miriam
A1  - Bosse, Elke
T1  - The challenge of creating meta-inferences: Combining data representing institutional and individual perspectives on first-year support in higher education
T2  - 9th Conference on Social Science Methodology of the International Sociological Association, Leicester, UK
Y1  - 2016
N1  - RC33 Conference 2016
SP  - 1
EP  - 20
ER  - 
TY  - CHAP
A1  - Barnat, Miriam
A1  - Bosse, Elke
A1  - Mergner, Julia
A1  - Jänsch, Vanessa
T1  - Entwicklung studienrelevanter Kompetenzen im Zusammenspiel mit Studieneinstiegsangeboten
T2  - KoBF-Auswertungsworkshop 31.05.-01.06.2017
Y1  - 2017
ER  - 
TY  - CHAP
A1  - Barnat, Miriam
A1  - Knutzen, S.
ED  - Mai, Andreas
T1  - Erfolgsstrategien für organisationales Lernen
T2  - Hochschulwege 2015 : Wie verändern Projekte die Hochschulen? ; Dokumentation der Tagung in Weimar im März 2015
Y1  - 2017
SN  - 978-3-7439-1763-7
SP  - 91
EP  - 108
PB  - tredition
CY  - Hamburg
ER  - 
TY  - CHAP
A1  - Barnat, Miriam
A1  - Mergner, Julia
T1  - Forschungsbasierte Qualitätsentwicklung am Beispiel der Analyse von Lernprozessen und der Wirksamkeit von Förderprogrammen
T2  - 3. Internationale Tagung für Qualitätsmanagement und Qualitätsentwicklung im Hochschulbereich 2.-3. Februar 2017
Y1  - 2017
ER  -