TY  - CHAP
A1  - Rendon, Carlos
A1  - Schwager, Christian
A1  - Ghiasi, Mona
A1  - Schmitz, Pascal
A1  - Bohang, Fakhri
A1  - Chico Caminos, Ricardo Alexander
A1  - Teixeira Boura, Cristiano José
A1  - Herrmann, Ulf
T1  - Modeling and upscaling of a pilot bayonettube reactor for indirect solar mixed methane reforming
T2  - AIP Conference Proceedings
N2  - A 16.77 kW thermal power bayonet-tube reactor for the mixed reforming of methane using solar energy has been designed and modeled. A test bench for the experimental tests has been installed at the Synlight facility in Juelich, Germany and has just been commissioned. This paper presents the solar-heated reactor design for a combined steam and dry reforming as well as a scaled-up process simulation of a solar reforming plant for methanol production. Solar power towers are capable of providing large amounts of heat to drive high-endothermic reactions, and their integration with thermochemical processes shows a promising future. In the designed bayonet-tube reactor, the conventional burner arrangement for the combustion of natural gas has been substituted by a continuous 930 °C hot air stream, provided by means of a solar heated air receiver, a ceramic thermal storage and an auxiliary firing system. Inside the solar-heated reactor, the heat is transferred by means of convective mechanism mainly; instead of radiation mechanism as typically prevailing in fossil-based industrial reforming processes. A scaled-up solar reforming plant of 50.5 MWth was designed and simulated in Dymola® and AspenPlus®. In comparison to a fossil-based industrial reforming process of the same thermal capacity, a solar reforming plant with thermal storage promises a reduction up to 57 % of annual natural gas consumption in regions with annual DNI-value of 2349 kWh/m2. The benchmark solar reforming plant contributes to a CO2 avoidance of approx. 79 kilotons per year. This facility can produce a nominal output of 734.4 t of synthesis gas and out of this 530 t of methanol a day.
Y1  - 2020
U6  - https://doi.org/10.1063/5.0029974
N1  - SOLARPACES 2019: International Conference on Concentrating Solar Power and Chemical Energy Systems, 1–4 October 2019, Daegu, South Korea
IS  - 2303
SP  - 170012-1
EP  - 170012-9
ER  - 
TY  - CHAP
A1  - Rendon, Carlos
A1  - Dieckmann, Simon
A1  - Weidle, Mathias
A1  - Dersch, Jürgen
A1  - Teixeira Boura, Cristiano José
A1  - Polklas, Thomas
A1  - Kuschel, Marcus
A1  - Herrmann, Ulf
T1  - Retrofitting of existing parabolic trough collector power plants with molten salt tower systems
T2  - AIP Conference Proceedings
Y1  - 2018
U6  - https://doi.org/10.1063/1.5067030
VL  - 2033
IS  - 1
SP  - 030014-1
EP  - 030014-8
ER  - 
TY  - CHAP
A1  - Renault, Philippe
A1  - Butenweg, Christoph
A1  - Mistler, Michael
T1  - Seismic vulnerability assessment system for bridges
T2  - Proceedings of the Tenth International Conference on Civil, Structural and Environmental Engineering Computing : [Rome, Italy, 30. August - 2. September 2005] / ed. by B. H. V. Topping
Y1  - 2005
SN  - 1-905088-00-0
SP  - 1
EP  - 14
PB  - Civil-Comp Press
CY  - Stirling
ER  - 
TY  - CHAP
A1  - Renault, Philippe
A1  - Butenweg, Christoph
T1  - Seismic vulnerability assessment of bridges
T2  - First Munich Bridge Assessment Conference, MBAC 2005 : Munich, 20.-25. June 2005
Y1  - 2005
SP  - 1
EP  - 16
ER  - 
TY  - CHAP
A1  - Reke, Michael
A1  - Peter, Daniel
A1  - Schulte-Tigges, Joschua
A1  - Schiffer, Stefan
A1  - Ferrein, Alexander
A1  - Walter, Thomas
A1  - Matheis, Dominik
T1  - A Self-Driving Car Architecture in ROS2
T2  - 2020 International SAUPEC/RobMech/PRASA Conference, Cape Town, South Africa
N2  - In this paper we report on an architecture for a self-driving car that is based on ROS2. Self-driving cars have to take decisions based on their sensory input in real-time, providing high reliability with a strong demand in functional safety. In principle, self-driving cars are robots. However, typical robot software, in general, and the previous version of the Robot Operating System (ROS), in particular, does not always meet these requirements. With the successor ROS2 the situation has changed and it might be considered as a solution for automated and autonomous driving. Existing robotic software based on ROS was not ready for safety critical applications like self-driving cars. We propose an architecture for using ROS2 for a self-driving car that enables safe and reliable real-time behaviour, but keeping the advantages of ROS such as a distributed architecture and standardised message types. First experiments with an automated real passenger car at lower and higher speed-levels show that our approach seems feasible for autonomous driving under the necessary real-time conditions.
Y1  - 2020
SN  - 978-1-7281-4162-6
U6  - https://doi.org/10.1109/SAUPEC/RobMech/PRASA48453.2020.9041020
N1  - 2020 International SAUPEC/RobMech/PRASA Conference, 29-31 Jan. 2020, Cape Town, South Africa
SP  - 1
EP  - 6
PB  - IEEE
CY  - New York, NY
ER  - 
TY  - JOUR
A1  - Reißel, Martin
A1  - Wick, J.
T1  - Eddy Current Computation / Reissel, M. ; Wick, J.
JF  - Proceedings of the Fifth European  Conference on Mathematics in Industry : June 6 - 9, 1990 Lahti / ed. by Matti Heiliö
Y1  - 1991
SN  - 3-519-02176-5
N1  - European Conference on Mathematics in Industry <5, 1990, Lahti>
SP  - 335
EP  - 338
PB  - Teubner
CY  - Stuttgart
ER  - 
TY  - JOUR
A1  - Reißel, Martin
A1  - Takei, T.
A1  - Brune, M.
A1  - Köttgen, V.
T1  - FEM Based Durability Analysis of the Knuckle of a Passenger Car / Takei, T. ; Brune, M. ; Köttgen, V. ; Reissel, M.
JF  - Proceedings. JSAE Annual Congress (1999)
Y1  - 1999
SN  - 0919-1364
SP  - 17
EP  - 20
ER  - 
TY  - JOUR
A1  - Reißel, Martin
A1  - Quell, P.
T1  - On the Vanishing Displacement Current Limit for Eddy-Current Problems / Quell, P. ; Reißel, M.
JF  - ZAMM - Zeitschrift für Angewandte Mathematik und Mechanik. 76 (1996), H. S2
Y1  - 1996
SN  - 0044-2267
N1  - ICIAM/GAMM 95 Applied Analysis
SP  - 649
EP  - 650
ER  - 
TY  - JOUR
A1  - Reißel, Martin
A1  - Lustfeld, H.
A1  - Steffen, B.
A1  - Schmidt, U.
T1  - Reconstruction of Electric Currents in a Fuel Cell by Magnetic Field Measurements / Lustfeld, H. ; Reißel, M. ; Steffen, B. ; Schmidt, U.
JF  - Journal of fuel cell science and technology
Y1  - 2009
SN  - 1550-624X
VL  - Vol. 6
IS  - Iss. 2
SP  - 021012-1
EP  - 021012-8
ER  - 
TY  - JOUR
A1  - Reißel, Martin
A1  - Lustfeld, H.
A1  - Hirschfeld, J.
A1  - Steffen, B.
T1  - Uniqueness of magnetotomography for fuel cells and fuel cell stacks / Lustfeld, H. ; Hirschfeld, J. ; Reißel, M ; Steffen, B.
JF  - Journal of Physics A: Mathematical and Theoretical. 42 (2009), H.  495205
Y1  - 2009
SN  - 0022-3689
SP  - 9 S.
ER  - 
TY  - JOUR
A1  - Reißel, Martin
A1  - Hirschfeld, J. A.
A1  - Lustfeld, H.
A1  - Steffen, B.
T1  - Magnetotomography and Electric Currents in a Fuel Cell / Lustfeld, H. ; Reißel, M. ; Steffen, B.
JF  - Fuel Cells. 9 (2009), H. 4
Y1  - 2009
SN  - 1615-6854
SP  - 474
EP  - 481
PB  - Wiley-VCH
CY  - Weinheim
ER  - 
TY  - JOUR
A1  - Reißel, Martin
A1  - Herbst, Michael
A1  - Gottschalk, Swen
A1  - Hardelauf, Horst
T1  - On preconditioning for a parallel solution of the Richards equation / Herbst, Michael ; Gottschalk, Swen ; Reißel, Martin ; Hardelauf, Horst ; Kasteel, Roy ; Javaux, Matthieu ; Vanderborght, Jan ; Vereecken, Harry
JF  - Computers & Geosciences. 34 (2008), H. 12
Y1  - 2008
SN  - 0098-3004
SP  - 1958
EP  - 1963
ER  - 
TY  - JOUR
A1  - Reißel, Martin
A1  - Bitsch, G.
A1  - Stamm, H.
T1  - A Stern Door Slam Fatigue Calculation / Bitsch, G. ; Reißel, M. ; Stamm, H.
JF  - Proceedings of the 18. CAD-FEM Users Meeting
Y1  - 2000
ER  - 
TY  - JOUR
A1  - Reißel, Martin
A1  - Bitsch, G.
A1  - Mawick, G.
A1  - Tokar, G.
T1  - Transient FEM Simulation of a Door Closing Process and Application to Fatigue / Bitsch, G. ; Mawick, G. ; Reißel, M. ; Tokar, G.
JF  - Proceedings of the 20. CAD-FEM Users Meeting, 2002
Y1  - 2002
N1  - 2.11.10
SP  - 1
EP  - 8
ER  - 
TY  - JOUR
A1  - Reißel, Martin
T1  - Three-dimensional eddy-current computation using Krylov subspace methods / Reissel, Martin
JF  - IMA Journal of Mathematics Applied in Business and Industry. 8 (1997), H. 2
Y1  - 1997
SN  - 1471-678X
SP  - 99
EP  - 121
ER  - 
TY  - JOUR
A1  - Reißel, Martin
T1  - On a transmission boundary-value problem for the time-harmonic Maxwell equations without displacement currents / Martin Reissel
Y1  - 1992
N1  - Bericht der Arbeitsgruppe Technomathematik ; 84 ; Vorabdruck
SP  - 19 S.
ER  - 
TY  - JOUR
A1  - Reißel, Martin
T1  - On a Transmission Boundary Value Problem for the Time-Harmonic Maxwell Equations without Displacement Currents / Martin Reissel
JF  - SIAM Journal on Mathematical Analysis. 24 (1993), H. 6
Y1  - 1993
SN  - 0036-1410
SP  - 1440
EP  - 1457
ER  - 
TY  - GEN
A1  - Reiswich, Martin
A1  - Brandt, Hannes
A1  - Czupalla, Markus
T1  - Passive thermal control by integration of phase change material into additively manufactured structures
T2  - E2. 47th Student conference
N2  - Optical Instruments require an extremely stable thermal surrounding to prevent loss of data quality by misalignments of the instrument components resulting from material deformation due to temperature f luctuations (e.g. from solar intrusion). Phase Change Material (PCM) can be applied as a thermal damper to achieve a more uniform temperature distribution. The challenge of this method is, among others, the integration of PCM into affected areas. If correctly designed, incoming heat is latently absorbed during phase change of the PCM, i.e. the temperature of a structure remains almost constant. In a cold phase, the heat during phase change is released again latently until the PCM returns to its original state of aggregation. Thus, the structure is thermally stabilized. At FH Aachen– University of Applied Sciences research is conducted to apply PCM directly into the structures of affected components (baffles, optical benches, electronic boxes, etc.). Through the application of Additive Manufacturing, the necessary voids are directly printed into these structures and filled later with PCM. Additive Manufacturing enables complex structures that would not have been possible with conservative manufacturing methods. A corresponding Breadboard was developed and manufactured by Selective Laser Melting (SLM). The current state of research includes the handling and analysis of the Breadboard, tests and a correlation of the thermal model. The results have shown analytically and practically that it is possible to use PCM as an integral part of the structure as a thermal damper. The results serve as a basis for the further development of the technology, which should maximize performance and enable the integration of PCM into much more complex structures.
Y1  - 2019
N1  - 70th International Astronautical Congress, 21. - 25. Oktober 2019, Washington D.C., United States
ER  - 
TY  - CHAP
A1  - Reisgen, Uwe
A1  - Schoene, Jens
A1  - Schleser, Markus
A1  - Jerabek, Jakub
A1  - Keil, Allessandra
ED  - Brameshuber, Wolfgang
T1  - Theoretical and experimental investigations on textile-reinforced concrete spalling behavior
T2  - Textile reinforced concrete : 2nd ICTRC : International RILEM Conference on Material Science : Aachen Germany, September 6 - 8, 2010. Vol. 1. (RILEM Proceedings PRO ;  75)
Y1  - 2010
SN  - 978-2-35158-106-3
SP  - 153
EP  - 162
PB  - RILEM Publ.
CY  - Bagneux
ER  - 
TY  - CHAP
A1  - Reisgen, Uwe
A1  - Schoene, Jens
A1  - Schleser, Markus
A1  - Gries, Thomas
A1  - Glowania, Michael
T1  - Impregnated textile reinforcements for concrete applications
T2  - European Coatings Congress : Nürnberg, Germany, 30.3. - 1.4. 2009
Y1  - 2009
ER  -