Výsledky vyhledávání - "Christian Rosskopf"

Mechanically induced phase transformation of zinc sulfide

Autor: Patrick Armstrong, Wolfgang Peukert, Christian Roßkopf, Cornelia Damm, Stefan Romeis

Publikováno v: Particuology. 18:1-10

Molecular dynamics (MD) simulations of the consecutive compression–decompression cycles of hexagonal zinc sulfide (wurtzite) nanoparticles predict an irreversible phase transformation to the cubic polymorph. The phase transformation commences at th

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::59f00d51a3d56a9e222564758aeca5f9
https://doi.org/10.1016/j.partic.2014.05.003

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The influence of gas–solid reaction kinetics in models of thermochemical heat storage under monotonic and cyclic loading

Autor: Marc Linder, Haibing Shao, Thomas Nagel, Antje Wörner, Olaf Kolditz, Christian Roßkopf

Publikováno v: Applied Energy. 136:289-302

Thermochemical reactions can be employed in heat storage devices. The choice of suitable reactive material pairs involves a thorough kinetic characterisation by, e.g., extensive thermogravimetric measurements. Before testing a material on a reactor l

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::010a17b6a2c628650f79b12a2f796e73
https://doi.org/10.1016/j.apenergy.2014.08.104

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Thermochemical Energy Storage in kW-scale based on CaO/Ca(OH)2

Autor: Marc Linder, Christian Roßkopf, Matthias Schmidt, Antje Wörner

Publikováno v: Energy Procedia. 49:888-897

In order to investigate thermochemical energy storage in larger scale, a test bench as well as a reactor containing around 20kg of reaction material has been built and brought into operation. This investigation is based on the reversible decompositio

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uSafe: A privacy-aware and participative mobile application for citizen safety in urban environments

Autor: Delphine Christin, Matthias Hollick, Christian Roßkopf

Publikováno v: Pervasive and Mobile Computing. 9:695-707

Recent mobile applications empower citizens to monitor noise pollution or report on features of their urban environment. One important aspect of urban life has, however, not been sufficiently addressed, namely the safety of citizens. We present a pri

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::23dd911f07754c568d3aecdce4ac1ca5
https://doi.org/10.1016/j.pmcj.2012.08.005

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Non-equilibrium thermochemical heat storage in porous media: Part 1 – Conceptual model

Autor: Norihiro Watanabe, Ashok Singh, Thomas Nagel, Marc Linder, Christian Roßkopf, Antje Wörner, Haibing Shao, Olaf Kolditz

Publikováno v: Nagel, T, Shao, H, Singh, A, Watanabe, N, Roßkopf, C, Linder, M, Wörner, A & Kolditz, O 2013, ' Non-equilibrium thermochemical heat storage in porous media : Part 1-Conceptual model ', Energy, vol. 60, pp. 254-270 . https://doi.org/10.1016/j.energy.2013.06.025

Thermochemical energy storage can play an important role in the establishment of a reliable renewable energy supply and can increase the efficiency of industrial processes. The application of directly permeated reactive beds leads to strongly coupled

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2f5b6d288cbf6fe629efff106a540425
https://doi.org/10.1016/j.energy.2013.06.025

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IncogniSense: An anonymity-preserving reputation framework for participatory sensing applications

Autor: Delphine Christin, Christian Rosskopf, Salil S. Kanhere, Leonardo A. Martucci, Matthias Hollick

Publikováno v: PerCom

Reputation systems rate the contributions to participatory sensing campaigns from each user by associating a reputation score. The reputation scores are used to weed out incorrect sensor readings. However, an adversary can deanonmyize the users even

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::0ff68f38d70f7e492d6b3197ac36b829
https://doi.org/10.1016/j.pmcj.2013.01.003

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Investigations of nano coated calcium hydroxide cycled in a thermochemical heat storage

Autor: Reinhard Trettin, S. Afflerbach, Marc Linder, T. Kowald, Matthias Schmidt, Christian Roßkopf, B. Görtz

Thermochemical heat storage systems are a promising new technology for concentrated solar power plants and can contribute to improve the efficiency of industrial processes Neveu et al. (2013) [21]. However, for example for the reaction system calcium

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::840fdf9ad7b57c6fa6898039ca532896
https://elib.dlr.de/95813/

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Non-equilibrium thermo-chemical heat storage in porous media: Part 2 – A 1D computational model for a calcium hydroxide reaction system

Autor: Olaf Kolditz, Haibing Shao, Thomas Nagel, Christian Roßkopf, Antje Wörner, Marc Linder

Thermal energy storage technologies can facilitate the transition to an energy system based largely on renewable sources and enable efficiency gains for industrial processes in general. Due to their specific advantages, various concepts of thermo-che

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::af832a545a8c81df88e6b7f8d5b37354
https://doi.org/10.1016/j.energy.2013.07.063

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