@article{KuertenMottaghyZiegler2015, author = {K{\"u}rten, Sylvia and Mottaghy, Darius and Ziegler, Martin}, title = {Design of plane energy geostructures based on laboratory tests and numerical modelling}, series = {Energy and Buildings}, volume = {107}, journal = {Energy and Buildings}, publisher = {Elsevier}, address = {Amsterdam}, issn = {0378-7788}, doi = {10.1016/j.enbuild.2015.08.039}, pages = {434 -- 444}, year = {2015}, language = {en} } @article{HoffstadtCheenakulaNikolauszetal.2023, author = {Hoffstadt, Kevin and Cheenakula, Dheeraja and Nikolausz, Marcell and Krafft, Simone and Harms, Hauke and Kuperjans, Isabel}, title = {Design and construction of a new reactor for flexible biomethanation of hydrogen}, series = {Fermentation}, volume = {9}, journal = {Fermentation}, number = {8}, publisher = {MDPI}, address = {Basel}, issn = {2311-5637}, doi = {10.3390/fermentation9080774}, pages = {1 -- 16}, year = {2023}, abstract = {The increasing share of renewable electricity in the grid drives the need for sufficient storage capacity. Especially for seasonal storage, power-to-gas can be a promising approach. Biologically produced methane from hydrogen produced from surplus electricity can be used to substitute natural gas in the existing infrastructure. Current reactor types are not or are poorly optimized for flexible methanation. Therefore, this work proposes a new reactor type with a plug flow reactor (PFR) design. Simulations in COMSOL Multiphysics ® showed promising properties for operation in laminar flow. An experiment was conducted to support the simulation results and to determine the gas fraction of the novel reactor, which was measured to be 29\%. Based on these simulations and experimental results, the reactor was constructed as a 14 m long, 50 mm diameter tube with a meandering orientation. Data processing was established, and a step experiment was performed. In addition, a kLa of 1 h-1 was determined. The results revealed that the experimental outcomes of the type of flow and gas fractions are in line with the theoretical simulation. The new design shows promising properties for flexible methanation and will be tested.}, language = {en} } @article{FoersterRosePietschetal.1995, author = {F{\"o}rster, Arnold and Rose, D. and Pietsch, U. and Metzger, T. H.}, title = {Depth resolved investigations of the relaxation behaviour in strained GaInAs/GaAs superlattices using grazing incidence X-ray diffraction / Rose, D. ; Pietsch, U. ; F{\"o}rster, A. ; Metzger, T. H.}, series = {Nuclear instruments and methods in physics research / Section B, Beam interactions with materials and atoms. 97 (1995), H. 1-4}, journal = {Nuclear instruments and methods in physics research / Section B, Beam interactions with materials and atoms. 97 (1995), H. 1-4}, isbn = {0168-583X}, pages = {333 -- 336}, year = {1995}, language = {en} } @article{FoersterRosePietschetal.1994, author = {F{\"o}rster, Arnold and Rose, D. and Pietsch, U. and Metzger, H.}, title = {Depth resolved investigation of the relaxation behaviour in strained GaInAs/GaAs superlattices / Rose, D. ; Pietsch, U. ; F{\"o}rster, A. ; Metzger, H....}, series = {Physica B: condensed matter. 198 (1994), H. 1-3}, journal = {Physica B: condensed matter. 198 (1994), H. 1-3}, isbn = {0921-4526}, pages = {256 -- 258}, year = {1994}, language = {en} } @article{FoersterIndlekoferLueth2002, author = {F{\"o}rster, Arnold and Indlekofer, K.M. and L{\"u}th, H.}, title = {Density-matrix description of a quantum dot system with variable lateral confinement in the single-electron tunneling regime. Indlekofer, K.M.; F{\"o}rster, A.; L{\"u}th, H.}, series = {Physica B: Condensed Matter. 314 (2002), H. 1-4}, journal = {Physica B: Condensed Matter. 314 (2002), H. 1-4}, isbn = {0921-4526}, pages = {499 -- 502}, year = {2002}, language = {en} } @article{BreitbachSchmidtPlutkaSchubertetal.1993, author = {Breitbach, Gerd and Schmidt-Plutka, A. and Schubert, F. and Nickel, H.}, title = {Deformation behaviour of structures exposed at very high temperatures to cyclic thermal and mechanical loadings}, series = {Structural mechanics in reactor technology : transactions of the 12th International Conference on Structural Mechanics in Reactor Technology, Stuttgart, Germany, 15-20 August 1993 / ed. Karl F. Kussmaul. - Bd. L : Inelastic behaviour of solids and structures}, journal = {Structural mechanics in reactor technology : transactions of the 12th International Conference on Structural Mechanics in Reactor Technology, Stuttgart, Germany, 15-20 August 1993 / ed. Karl F. Kussmaul. - Bd. L : Inelastic behaviour of solids and structures}, publisher = {Elsevier}, address = {Amsterdam [u.a.]}, isbn = {0-444-81515-5}, pages = {203 -- 208}, year = {1993}, language = {en} } @article{FoersterDarmoDubeckyetal.1994, author = {F{\"o}rster, Arnold and Darmo, J. and Dubeck{\´y}, F. and Kordos, P.}, title = {Deep-level states and electrical properties of GaAs grown at 250 °C / J. Darmo ; F. Dubeck{\´y} ; P. Kordos ; A. F{\"o}rster ...}, series = {Materials science and engineering B: Solid\&\#150; state materials for advanced technology. 28 (1994), H. 1-3}, journal = {Materials science and engineering B: Solid\&\#150; state materials for advanced technology. 28 (1994), H. 1-3}, isbn = {0921-5107}, pages = {393 -- 396}, year = {1994}, language = {en} } @article{HelsperFissanKapadietal.1982, author = {Helsper, Christoph and Fißan, H. J. and Kapadi, A. and Liu, B. Y. H.}, title = {Data Inversion by Simplex Minimization for the Electrical Aerosol Analyzer}, series = {Aerosol Science and Technology. 1 (1982), H. 1982}, journal = {Aerosol Science and Technology. 1 (1982), H. 1982}, isbn = {0278-6826}, pages = {136 -- 146}, year = {1982}, language = {en} } @article{FoersterVergheseZamdmeretal.1997, author = {F{\"o}rster, Arnold and Verghese, S. and Zamdmer, N. and Hu, Qing}, title = {Cryogenic picosecond sampling using fiber-coupled photoconductive switch / S. Verghese ; N. Zamdmer ; Qing Hu ; A. F{\"o}rster}, series = {Applied physics letters. 70 (1997), H. 20}, journal = {Applied physics letters. 70 (1997), H. 20}, isbn = {0003-6951}, pages = {2644 -- 2646}, year = {1997}, language = {en} } @article{TillmannFoerster2000, author = {Tillmann, K. and F{\"o}rster, Arnold}, title = {Critical dimensions for the formation of interfacial misfit dislocations of In0.6Ga0.4As islands on GaAs(001)}, series = {Thin Solid Films. 368 (2000), H. 1}, journal = {Thin Solid Films. 368 (2000), H. 1}, isbn = {0040-6090}, pages = {93 -- 104}, year = {2000}, language = {en} }