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University of Bayreuth's institutional repository for digital research data

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Recent Submissions

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Research DataOpen Access
Ergänzende_Daten_Dissertation_Dollinger
(2025-06-25) Dollinger, Manfred Anton
Untersuchung des Verbrauchs und der Treibhausgasemissionen von batterieelektrischen und Brennstoffzellen-betriebenen Personen- und Lastkraftwagen mit modellgestützten Prognosen bis 2050 Anhang 01 Fahrzeugdaten der Modelle Anhang 02 Fahrroutendetails eigene Tests Anhang 03 Luftwiderstand der Modelle Anhang 04 Rollwiderstand der Modelle Anhang 05 T-Abhängigkeit Rollwiderstand Anhang 06 Fahrzyklen Anhang 07 Trägheitsmomente der rotierenden Massen Anhang 08 E-Motor Kennlinienfeld Anhang 09 H2-Speicherung Anhang 10 Antriebstechn. Daten der Modelle Anhang 11 Gewichtskonfiguration im Detail Anhang 12 Simulator komplett Anhang 13 FC-Kennlinienparametrierung Anhang 14 CH4-Motor, Kennlinien Anhang 15 Zubehör-Berechnungsbeispiel Anhang 16 Truck_Data Anhang 17 Zubehörberechnung_lKW Anhang 18 Truck_Modelldaten Anhang 19 FC_Characteristics Anhang 21 THG Anhang 22 Bevölkerungsstatistik Anhang 23 Ergebnisse PkW groß Details Anhang 24 Energieanteile für Vorheizen Batterie und FC Anhang 25 Vergleichstabelle ADAC/Hersteller Anhang 26 Verbrauchsanteile LkW Anhang 27 Transportrouten Anhang 28 Hoekstra_Papier
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Research DataOpen Access
Design strategies for stack-based piezoelectric energy harvesters near bridge bearings
(2025-06-24) Mattauch, Philipp; Schneider, Oliver; Fischerauer, Gerhard
FE data contains the Ansys Mechanical APDL input files (*.txt) and the recorded time series results for the different load cases and stiffnesses of the COMBIN14 element representing the piezoelectric Energy harvesting system (*.csv). A "," is used as a delimiter between the individual columns and a "." is used as the decimal separator. In addition the simulation results used to generate the figures 10, 12, 13 and 14 are provided as MATLAB *.mat files containing input Parameters, time series data and the converted energy. The traffic data is available from the Bundesamt für Strassenwesen (BaSt) online: https://www.bast.de/DE/ 352 Verkehrstechnik/Fachthemen/v2-verkehrszaehlung/Aktuell/zaehl_aktuell_node.html?cms_detail=9237&cms_map=0 (accessed on 5 May 2025).
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Research DataOpen Access
Datenraum_Dissertation_MRT_2025_06_25: Untersuchung des Verbrauchs und der Treibhausgasemissionen von batterieelektrischen und Brennstoffzellen-betriebenen Personen- und Lastkraftwagen mit modellgestützten Prognosen bis 2050
(2025-06-23) Dollinger, Manfred Anton
Datenraum_Dissertation_MRT_2025_06_25: Untersuchung des Verbrauchs und der Treibhausgasemissionen von batterieelektrischen und Brennstoffzellen-betriebenen Personen- und Lastkraftwagen mit modellgestützten Prognosen bis 2050 Inhalt Anhang 01 Fahrzeugdaten der Modelle Anhang 02 Fahrroutendetails eigene Fahrtests Anhang 03 Luftwiderstand Anhang 04 Rollreibwerte Asphalt Anhang 05 T-Abhängigkeit von cr Anhang 06 Drive Cycles, Höhenprofile Anhang 07 Trägheitsmomente der rotierenden Massen Anhang 08 eta Kennliniefeld E-Motor + Formeln Anhang 09 Speicherung von H2 (WUN H2 Riessner) Anhang 10 Antriebstechn. Daten der 3 generische Fahrzeugtypen Anhang 11 Gewichtskonfiguration im Detail Anhang 12 Simulator komplett Anhang 13 H2-FC-Wirkungsgradkennlinie Parameter Anhang 14 CH4-Motor, eta-Kennlinienermittlung + Drehmoment Anhang 15 Zubehörberechnungsbeispiel Anhang 16 Fahrzeugdaten LkW 1+2 Diesel Anhang 17 Zubehörverbräuche LkW Anhang 18 Fahrzeugmodelldaten BET, FCET, ICETR Details Anhang 19 H2-FC Weiterentwicklung eta Anhang 20 CNG-Weiterentwicklung Anhang 21 THG-Faktor Aktualisierung P3 Anhang 22 Bevölkerungsstatistik Anhang 23 Simulationsergebnisse PkW groß Details Anhang 24 Energieanteile für Vorheizen Batterie und FC Anhang 25 Vergleichstabelle Verbräuche ADAC Herstellertabelle +eigenen Modellwerte Anhang 26 Verbrauchsanteile LkW, Rekuperation Anhang 27 Referenztouren der Trucks - Details Anhang 28 Hoekstra-Papier: Vergleich der lebenslangen THG-Emisssionen von Elektroautos Anhang 29 wird noch festgelegt Anhang 30 wird noch festgelegt Anhang 31 wird noch festgelegt
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Research DataRestricted
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Research DataOpen Access
Data from: Greenhouse gas fluxes from two drained pond sediments: a mesocosm study
(2025-02-14) Borken, Werner
Ponds can store large amounts of organic matter (OM) in their sediments, often accumulated over long periods of time. Sediment OM is largely protected from aerobic mineralization under water saturated conditions but are vulnerable when exposed to oxygen during periods of drought. As climate change progresses, drought periods are likely to occur more frequently and may affect OM mineralization, and thus the release of greenhouse gases (GHGs) such as carbon dioxide (CO2), methane (CH4) and nitrous oxide (N2O) from pond ecosystems. Therefore, we aimed to test how GHG emissions and concentrations in the sediment respond to drought by gradually decreasing water levels to below the sediment surface. To this end, undisturbed sediment cores from two small ponds with distinct watershed and water chemistry characteristics were incubated in mesocosms for 118 days at 20°C. Water levels were sequentially tested at 3 cm above the sediment surface (Phase I) and at the level of the sediment surface (Phase II). In Phase III, water levels were continuously lowered either by evaporation or by active drainage including evaporation. Mean CH4 fluxes of both ponds were high (21 and 87 mmol m-2 d-1), contributing 90 and 96% to the GHG budget over the three phases. The highest CH4 fluxes occurred in Phase II, while active drainage strongly reduced CH4 fluxes in Phase III. A multivariate analysis suggests that dissolved organic carbon and sulphate were important drivers of CH4 fluxes in Phase III. CO2 and N2O fluxes also responded to declining water levels, but their contribution to the GHG budget was rather small. Both gases were primarily produced in the upper sediment layer as indicated by highest concentrations at 5 cm sediment depth. Compaction of sediment cores by water level lowering increased bulk density and maintained high water contents. This side effect, retarding the drying of the sediment surface, was possibly relevant for the GHG net emission of the sediments in Phase II and III. Overall, GHG fluxes from the sediments exhibited high sensitivity to falling water levels. This study suggests that drying pond sediments have great potential to emit large amounts of GHGs to the atmosphere in the event of drought, representing hot spots of GHGs in the landscape.