TY  - JOUR
A1  - Ayed, Anis Haj
A1  - Kusterer, Karsten
A1  - Funke, Harald
A1  - Keinz, Jan
T1  - CFD Based Improvement of the DLN Hydrogen Micromix Combustion Technology at Increased Energy Densities
JF  - American Scientific Research Journal for Engineering, Technology, and Sciences (ASRJETS)
N2  - Combined with the use of renewable energy sources for its production, Hydrogen represents a possible alternative gas turbine fuel within future low emission power generation. Due to the large difference in the physical properties of Hydrogen 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. Thus, the development of DLN combustion technologies is an essential and challenging task for the future of Hydrogen fuelled gas turbines. The DLN Micromix combustion principle for hydrogen fuel has been developed to significantly reduce NOx-emissions. This combustion principle is based on cross-flow mixing of air and gaseous hydrogen which reacts in multiple miniaturized diffusion-type flames. The major advantages of this combustion principle are the inherent safety against flash-back and the low NOx-emissions due to a very short residence time of reactants in the flame region of the micro-flames. The Micromix Combustion technology has been already proven experimentally and numerically for pure Hydrogen fuel operation at different energy density levels. The aim of the present study is to analyze the influence of different geometry parameter variations on the flame structure and the NOx emission and to identify the most relevant design parameters, aiming to provide a physical understanding of the Micromix flame sensitivity to the burner design and identify further optimization potential of this innovative combustion technology while increasing its energy density and making it mature enough for real gas turbine application. The study reveals great optimization potential of the Micromix Combustion technology with respect to the DLN characteristics and gives insight into the impact of geometry modifications on flame structure and NOx emission. This allows to further increase the energy density of the Micromix burners and to integrate this technology in industrial gas turbines.
Y1  - 2016
SN  - 2313-4402
VL  - 26
IS  - 3
SP  - 290
EP  - 303
PB  - GSSRR
ER  - 
TY  - PAT
A1  - Artmann, Gerhard
A1  - Linder, Peter
A1  - Bayer, Robin
A1  - Gossmann, Matthias
T1  - Celldrum electrode arrangement for measuring mechanical stress [Patent of invention]
N2  - The invention pertains to a CellDrum electrode arrangement for measuring mechanical stress, comprising a mechanical holder (1 ) and a non-conductive membrane (4), whereby the membrane (4) is at least partially fixed at its circumference to the mechanical holder (1), keeping it in place when the membrane (4) may bend due to forces acting on the membrane (4), the mechanical holder (1) and the membrane (4) forming a container, whereby the membrane (1) within the container comprises an cell- membrane compound layer or biological material (3) adhered to the deformable membrane 4 which in response to stimulation by an agent may exert mechanical stress to the membrane (4) such that the membrane bending stage changes whereby the container may be filled with an electrolyte, whereby an electric contact (2) is arranged allowing to contact said electrolyte when filled into to the container, whereby within a predefined geometry to the fixing of the membrane (4) an electrode (7) is arranged, whereby the electrode (7) is electrically insulated with respect to the electric contact (2) as well as said electrolyte, whereby mechanical stress due to an agent may be measured as a change in capacitance.
Y1  - 2017
N1  - Patent auch unter EP3403090, CN109477828, US2019033245 und LU92948 veröffentlicht.
PB  - WIPO
CY  - Geneva
ER  - 
TY  - BOOK
A1  - Appel, Wolfgang
A1  - Brähler, Hermann
A1  - Dahlhaus, Ulrich
A1  - Esch, Thomas
A1  - Kopp, Stephan
A1  - Rhein, Bernd
T1  - Nutzfahrzeugtechnik : Grundlagen, Systeme, Komponenten. 6., überarb. Aufl.
Y1  - 2010
SN  - 978-3-8348-9757-2
PB  - Vieweg + Teubner
CY  - Wiesbaden
ER  - 
TY  - BOOK
A1  - Appel, Wolfgang
A1  - Brähler, Hermann
A1  - Breuer, Stefan
A1  - Dahlhaus, Ulrich
A1  - Esch, Thomas
A1  - Hoepke, Erich
A1  - Kopp, Stephan
A1  - Rhein, Bernd
T1  - Nutzfahrzeugtechnik : Grundlagen, Systeme, Komponenten. 7., überarb. u. erw. Aufl.
Y1  - 2013
SN  - 978-3-8348-2224-6
PB  - Vieweg + Teubner
CY  - Wiesbaden
ER  - 
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  - BOOK
ED  - Ley, Wilfried
ED  - Hallmann, Willi
ED  - Wittmann, Klaus
T1  - Handbuch der Raumfahrttechnik
Y1  - 2019
SN  - 978-3-446-45429-3
N1  - gedruckt in der Bereichsbibliothek Eupener Str. vorhanden
PB  - Hanser
CY  - München
ET  - 5. Auflage
ER  -