TY - CONF A1 - Romero-Navarrete, José A. A1 - Otremba, Frank T1 - A computational scheme for assessing driving N2 - The systematization of the analysis, based on the software proposed in this paper, could contribute to integrally improve the sustain ability of the transportation. T2 - Computing Conference 2019 CY - London, UK DA - 15.07.2019 KW - Computational KW - Scheme KW - Assessing KW - Driving PY - 2019 AN - OPUS4-48587 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Romero-Navarrete, José A. A1 - Otremba, Frank A1 - Sklorz, Christian A1 - Madrid, M. M. T1 - A convex bottom tank for atmospheric road tankers N2 - An analysis has been presented pertaining to the use of a convex bottom tank shape instead of an elliptical, for a road tanker. Two analyses have been made, concerning the static and the dynamic relative performance expectations of such tank shape when compared with the elliptical shape performance. The outputs of both analyses suggest that the level of average benefit due to using the proposed shape, is around 10%, with a maximum benefit observed in the dynamic performance in the case of the minimum fill level. Correlation between static and dynamic outputs. Manufacturing. T2 - CONiiN XV International Engineering Congress CY - Santiago de Queretáro, Mexico DA - 13.05.2019 KW - Conveux KW - Tank KW - Atmospheric PY - 2019 AN - OPUS4-48114 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Otremba, Frank A1 - Romero-Navarrete, José A. T1 - A real-time GPS scheme to assess safe driving skills N2 - Avoiding road crashes has been the purpose behind many specialized software and hardware systems, involving both active and passive safety principles. Global Positioning technologies were incorporated into the transportation systems with the main purpose of acquiring the position of the vehicle under a continuous basis, for security and economy purposes. However, the GPS data can also be used for assessing the level of safety at which the vehicle is driven. On the basis of the essential data available from commercial GPS devices, in this paper we propose a combined performance measurement to assess the road safety level at which the vehicle is being driven. Such performance measure uses GPS data of the vehicle displacement, including the speed and the acceleration, as well as the course (latitude and longitude coordinates), in an integral driving assessment formulation that can run in real time. Results from the experimental use of this formulation suggest that the level of safety in the driving is time dependent, and that there are risky situations when different factors converge. T2 - ICASAT – 2019 – IEEE international Conference on Applied Science and Advanced Technology CY - Queretaro, México DA - 27.11.2019 KW - GPS Scheme KW - Safe KW - Driving PY - 2019 AN - OPUS4-49982 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Romero-Navarrete, José A. A1 - Otremba, Frank T1 - A testing facility to assess railway car infrastructure damage N2 - A testing device and respective procedure have been proposed to assess the railway damage potentials of the railway cars The operational principles of the device consist of simple physical phenomena. Outputs from a preliminary test suggest that the device could have a good sensitivity. T2 - COMPRAIL 2020 - 17th International Conference on Railway Engineering Design & Operation 2020 CY - Online meeting DA - 01.07.2020 KW - Wheel rail forces KW - Friction PY - 2020 AN - OPUS4-51127 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Romero-Navarrete, José A. A1 - Otremba, Frank T1 - A testing facility to assess railway car infrastructure damage. A conceptual design N2 - A testing device and respective procedure have been proposed to assess the railway damage potentials of the railway cars The operational principles of the device consist of simple physical phenomena. Outputs from a preliminary test suggest that the device could have a good sensitivity T2 - COMPRAIL 2020 - 17th International Conference on Railway Engineering Design & Operation 2020 CY - Online meeting DA - 01.07.2020 KW - Railway KW - Infrastrucute KW - Demage PY - 2020 AN - OPUS4-51166 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Romero-Navarrete, José A. A1 - Otremba, Frank T1 - A testing rig to study vehicle-track interaction N2 - Preliminary data of accidents, pointing out about rail fracture potentials of sloshing cargoes. Testing rig, designed to characterize the effect of vehicle characteristics and infrastructure design, on the forces exerted on the rail. The corresponding mathematical model will be. T2 - Joint Rail Conference CY - Pittsburgh, PA, USA DA - 18.04.2018 KW - Vehicle-track KW - Interaction PY - 2018 AN - OPUS4-44815 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Romero-Navarrete, José A. A1 - Otremba, Frank T1 - A variable friction centre plate N2 - The proposed mechanism is based on a cam design and is independent of any external energy source. Conclusions Issue 1: An accelerated wear tip of the cam shaped journal . Issue 2: The spherical rollers proposed for the bearings would be underused, as the contact force will be downwards, and such bearing has supporting capacity in both vertical directions. T2 - IFToMM world congress CY - Krakow, Poland DA - 30.06.2019 KW - Variable friction KW - Centre plate PY - 2019 AN - OPUS4-48458 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Camplese, D. A1 - Chianese, C. A1 - Scarponi, G. E. A1 - Eberwein, Robert A1 - Otremba, Frank A1 - Cozzani, V. T1 - Analysis of high temperature degradation of multi-layer insulation (MLI) systems for liquid hydrogen storage tanks N2 - The interest in hydrogen-based green energy is increasing worldwide, and the same is true for hydrogen-powered vehicles. Among the possible solutions to store hydrogen in such vehicles, cryogenic tanks equipped with multi-layer insulation (MLI) are the most promising to increase the amount of energy stored per unit volume. However, MLI is affected by severe deterioration when exposed to an external source of heat such as a fire following a car accident, leaving the tank unprotected and leading to failure in a relatively short time. In this work, a one-dimensional model to evaluate MLI thermal degradation when a liquid hydrogen tank is exposed to fire is presented. The relevance of taking MLI degradation into account when simulating the pressure increase due to external fire exposure is here demonstrated through the analysis of several case studies. The results show that MLI systems performance depletes within a few minutes of exposure to hydrocarbon poolfire. T2 - ICheaP 16 CY - Naples, Italy DA - 21.05.2023 KW - LH2 KW - MLI KW - Fire KW - Tank PY - 2023 AN - OPUS4-57553 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Soszynska, A. A1 - Säuberlich, T. A1 - Fischer, C. A1 - Borch, Jörg A1 - Otremba, Frank A1 - Reulke, R. T1 - Analysis of the gas flare flame with infrared cameras N2 - Greenhouse gas emissions caused by human activities remain one of the most important subjects of international discussions. The routine gas flaring has been estimated to be responsible for as much as 1% of global carbon dioxide emission per year. Gas flaring analysis is one of the key-interest subjects in remote sensing community. Some of the existing publications use remote sensing techniques with satellite imagery to derive information about flame temperature and further about to estimate the volume of the flared gas. The often missing element is an in-situ measurement analysis of gas flames, combining signals recorded by a camera on-ground and data on flared gas volume, temperature and gas type. In order to address this problem, an experiment was conducted, in which the gas flame was recorded by thermal cameras on-ground, simultaneously to an aerial survey and the gas flow was measured at the same time on-ground. The measurement setup was designed in cooperation between Institute of Optical Sensor Systems of German Aerospace Center (DLR) and German Federal Institute for Materials Research and Testing (BAM). Cameras recording in thermal and mid-wave IR wavelengths were used to record the burning gas on-ground and from the aerial survey. All the measurements have been compared and statistically analysed with respect to the recorded temperature. The purpose of the examination was to describe the signal changes in thermal imagery with respect to changes in energy, emitted by the burning process. This approach will allow for later calculation of the amount of energy in form of thermal radiation sent from the flame to the satellite. T2 - Processing Methodologies I CY - Strasbourg, France DA - 10.09.2019 KW - Gas flaring KW - Thermal remote sensing KW - Thermal radiation KW - Aerial survey PY - 2019 AN - OPUS4-48988 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Würsig, Andreas A1 - Werner, Jan T1 - Beförderung gefährlicher Güter in Tanks N2 - Tanks sind für normale Beförderungsbedingungen gebaut und zugelassen! Tankkörper müssen nach Normen (siehe 6.8.2.6 RID/ADR) oder nach einem von der zuständigen Behörde anerkannten technischen Regelwerk entworfen und gebaut werden Schweißverbindungen müssen nach Regeln der Technik ausgeführt werden. Unterdruck im Tank ist zu berücksichtigen (Berechnung, Vakuumventil). Beständigkeit – Gefahrgut darf mit Tankwerkstoff nicht gefährlich reagieren oder die Werkstoffe merklich schwächen! T2 - Besuch chinesischer Delegation CY - BAM, Berlin, Germany DA - 13.11.2019 KW - Beförderung KW - Güter KW - Tanks KW - Zulassungen PY - 2019 AN - OPUS4-49672 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -