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Suche nach „[S: TC Freyung]“ hat 374 Publikationen gefunden
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    NachhaltigF: Angewandte InformatikS: TC Freyung

    Zeitschriftenartikel

    J. Schmidt, K. Gruber, M. Klingler, C. Klöckl, Luis Ramirez Camargo, P. Regner, O. Turkovska, S. Wehrle, E. Wetterlund

    A new perspective on global renewable energy systems: why trade in energy carriers matters

    Energy & Environmental Science, vol. 12, no. 7, pp. 2022-2029

    2019

    DOI: 10.1039/C9EE00223E

    Abstract anzeigen

    Recent global modelling studies suggest a decline of long-distance trade in energy carriers in future global renewable energy systems, compared to today's fossil fuel based system. In contrast, we identify four drivers that facilitate trade of renewable energy carriers. These drivers may lead to trade volumes remaining at current levels or even to an increase during the transition to an energy system with very high shares of renewables. First, new land-efficient technologies for renewable fuel production become increasingly available and technically allow for long-distance trade in renewables. Second, regional differences in social acceptance and land availability for energy infrastructure support the development of renewable fuel import and export streams. Third, the economics of renewable energy systems, i.e. the different production conditions globally and the high costs of fully renewable regional electricity systems, will create opportunities for spatial arbitrage. Fourth, a reduction of stranded investments in the fossil fuel sector is possible by switching from fossil fuels to renewable fuel trade. The impact of these drivers on trade in renewable energy carriers is currently under-investigated by the global energy systems research community. The importance of the topic, in particular as trade can redistribute profits and losses of decarbonization and may hence support finding new partners in climate change mitigation negotiations, warrants further research efforts in this area therefore.

    NachhaltigF: Angewandte InformatikS: TC Freyung

    Zeitschriftenartikel

    Javier Valdés, A. Poque González, Luis Ramirez Camargo, M. Valin Fenández, Y. Masip Macia, Wolfgang Dorner

    Industry, flexibility, and demand response: Applying German energy transition lessons in Chile

    Energy Research & Social Science, vol. 54, no. August, pp. 12-25

    2019

    DOI: 10.1016/j.erss.2019.03.003

    Abstract anzeigen

    Demand side management (DSM) contributes, among its other purposes, to provide stability and flexibility to energy systems that include a high proportion of variable renewable energy in pioneer countries and those which recently began their energy transition. Among DSM policies, implementation of measures and mechanisms for a demand response (DR) is not a trivial matter. This study presents a review and comparative analysis of the major energy policy developments in Germany and Chile. Based on i) the relevance of the industry sector in both countries, ii) the difficulty in implementing the regulatory framework and iii) the importance given to the industrial customers in the German legislation and DR literature, the following analysis will focus on both medium and large industrial customers. The goals are to review the challenges in untying the full DR potential of the productive industry and to provide recommendations for the promotion of DR in Chile. Emphasis is placed on the lessons learned in fitting the wide potential of DR in the German electricity markets. A review of the successes and failures of the German experience reveals the potential risk that poor policy implementation can have in both the short and long term.

    NachhaltigF: Angewandte InformatikS: TC Freyung

    Zeitschriftenartikel

    Luis Ramirez Camargo, Javier Valdés, Y. Masip Macia, Wolfgang Dorner

    Assessment of on-site steady electricity generation from hybrid renewable energy systems in Chile

    Applied Energy, vol. 250, no. 15 September 2019, pp. 1548-1558

    2019

    DOI: 10.1016/j.apenergy.2019.05.005

    Abstract anzeigen

    Chile has an immense renewable energy potential but its integration into the energy system constitutes a major challenge. The country has a complex topography that is expressed by a divided national grid with almost isolated subsystems and wide differences in the availability of renewable energy resources. The present study aims at evaluating the potentials of combining solar power, wind power and storage systems to provide steady loads already from the generation source. The analysis relies on an optimization model to size hybrid renewable energy systems and 10 years of weather data from the brand new ERA5 global reanalysis. Multiple scenarios are calculated and intercompared for all possible locations across the country. These scenarios include system sizing considering hourly weather data for the period 2008–2017 and for one year without major weather extreme events. In both analyses, the results are calculated for systems that generate 1 MWh of electricity at every time step and systems that have certain intraday flexibility. Results show that the necessary generation and storage capacities to provide a steady energy output are very high even for areas with exceptionally high renewable energy potential (in the Atacama desert the system configuration requirements could reach 10 MWp of photovoltaics and 10 MWh of storage). Intraday flexibility has direct effects on these results by reducing the total size of the systems but the effects on the sizes of the installations of the particular technologies depend on the individual geographical location.

    DigitalF: Angewandte InformatikS: TC Freyung

    Vortrag

    Mariann Juha

    Orientierungshilfe für Touristen. Aufwertung von Themenwegen und Kulturgütern durch digitale Navigationsunterstützung und Virtual Reality

    Posterpräsentation

    6. Tag der Forschung, Deggendorf

    2019

    DigitalF: Angewandte InformatikS: TC Freyung

    Vortrag

    Mariann Juha

    Peregrinus Silva Bohemica. A Digital Travel Guide for Navigation Assistance

    2019 9th International Conference on Advanced Computer Information Technologies (ACIT'2019), České Budějovice, Czech Republic

    2019

    DigitalF: Angewandte InformatikS: TC Freyung

    Beitrag (Sammelband oder Tagungsband)

    K. Horníčková, J. Fesl, L. Dostálek, Wolfgang Dorner, M. Vohnoutová, K. Preusz, M. Preusz, Anne Weinfurtner, L. Závitkovská

    Photostruk – Uniting Science and Humanities for the Reconstruction of Lost Cultural Heritage Sites and Landscape

    2019 9th International Conference on Advanced Computer Information Technologies (ACIT'2019) [Ceske Budejovice, Czech Republic, June 5-7, 2019]

    2019

    ISBN: 978-1-7281-0449-2

    DigitalF: Angewandte InformatikS: TC Freyung

    Vortrag

    Anja Braehmer, Anne Weinfurtner

    Digital Technologies for Cross-Cultural and Cross-Medial Museum Work

    2019 9th International Conference on Advanced Computer Information Technologies (ACIT'2019), České Budějovice, Czech Republic

    2019

    DigitalF: Angewandte InformatikS: TC Freyung

    Vortrag

    Anne Weinfurtner

    How to Better Find Historical Photographs in an Archive Geographic Driven Reverse Search for Photographs

    Digital Humanities Conference 2019 (DH2019), Utrecht, The Netherlands

    2019

    DigitalF: Angewandte InformatikS: TC Freyung

    Beitrag (Sammelband oder Tagungsband)

    Anne Weinfurtner, Wolfgang Dorner, Simon Graf

    How to Better Find Historical Photographs in an Archive Geographic Driven Reverse Search for Photographs

    Digital Humanities Conference 2019 (DH2019)

    2019

    Abstract anzeigen

    Historical photographs are important sources for documenting the past of humanity. They can serve as evidence of our society’s history but are also objects of research themselves. Today, the standard format for describing the geographical origin of a photograph is to assign a geoname or point coordinate of the location of the photographer to the image. In view of historical photographs, we are dealing within this operation with spatial uncertainty. In most cases it is not possible to define the exact location of the photographer in form of coordinates in e.g. regions that afflicted strong environmental changes over time. The aspect of spatial uncertainty is also present, when describing the location of the photograph`s origin by a so-called geoname. A geoname can be comprehended to different extents. For example, it can name a region, a city or just a small part of a city. Therefore the question of the exact spatial origin cannot be answered by solely using a geoname. Such aspects of uncertainty in the localization of historical photographs complicate the retrievability in archives for spatially oriented search. Since the photographs cannot be found by entering search queries in the archive, their potential to serve as a data source for research cannot be fully exploited.

    DigitalNachhaltigF: Angewandte InformatikS: TC Freyung

    Vortrag

    Siegfried Hildebrand

    Smart Grid Technologies for Rural Areas and SMEs

    Posterpräsentation

    9th Energy Colloquium of the Munich School of Engineering, Shaping a Sustainable Energy Future, München

    2019

    DigitalNachhaltigF: Angewandte InformatikS: TC Freyung

    Beitrag (Sammelband oder Tagungsband)

    Siegfried Hildebrand, Christina Sigl, Andreas Berl

    Smart Grid Technologies for Rural Areas and SMEs

    Shaping a Sustainable Energy Future: 9th Colloquium of the Munich School of Engineering (August 1, 2019)

    2019

    DigitalNachhaltigF: Angewandte InformatikS: TC Freyung

    Vortrag

    Siegfried Hildebrand, Christina Sigl

    Introduction to Smart Grid - Practical Training

    Smart Grid: Systems and Technologies: Summer School 2019, České Budějovice, Czech Republic

    2019

    DigitalF: Angewandte InformatikS: TC Freyung

    Beitrag (Sammelband oder Tagungsband)

    Wolfgang Dorner, Luis Ramirez Camargo, Peter Hofmann

    Can Geoinformation Help to Better Protect Informal Settlements? - A Concept For the City of Medellín

    Gi4DM 2019 – GeoInformation for Disaster Management, vol. XLII-3/W8

    2019

    DOI: 10.5194/isprs-archives-XLII-3-W8-115-2019

    Abstract anzeigen

    New contributions to disaster research need to address the increasing vulnerability of informal settlements in a changing climate situation. Informal settlements are frequently built in hazardous areas and are often left out of traditional disaster risk management concepts. Hence, formal and informal societal structures, as well as technical systems to warn against, handle or mitigate natural hazards, need to evolve. Within the project Inform@Risk we are addressing these issues based on a case study in Medellín (Colombia). Here, as a result of civil conflicts informal dwellings were partly constructed by people displaced from rural areas. They are mainly located in the urban peripheral areas along steep and unstable slopes, where the resettlement of all inhabitants at risk of landslides is unfeasible. This contribution presents the technical infrastructure and the concept to incorporate geodata from different sources in an integrated landslide early warning system for some selected informal settlements of Medellin. Special attention is given to possibilities on how building societal institutions, supported by information systems, increases local resilience. Using geoformation as a basis, we will combine classical participatory planning methods with digitally assisted concepts. These include combining satellite and UAS based remote sensing data with terrestrial sensor networks, crowd sourcing and citizen science to collect volunteered geographic information about the settlement and its environmental parameters, as well as distribute this information and disseminate warnings to the local population.

    NachhaltigF: Angewandte InformatikS: TC Freyung

    Beitrag (Sammelband oder Tagungsband)

    Jane Wuth, Luis Ramirez Camargo

    Assessing Middle and Low Voltage Grid Requirements in Bavaria for the Decades to Come

    Shaping a Sustainable Energy Future: 9th Colloquium of the Munich School of Engineering (August 1, 2019)

    2019

    Abstract anzeigen

    Increased urbanization and rural depopulation processes are going to produce a high impact on the future electric grid. The impact of these developments on the shape and characteristics of the electricity transmission and distribution systems is however today not discussed as much as the transition to renewable energies. Current research dedicated to electrical grids focuses on the integration of renewables and the related necessary measures to increase stability and reliability. Topics such as the changes in the shape and length of grid as well as redundant infrastructure issues due to demographic changes are barely studied in previous literature. The present work is a pioneer attempt to address these issues using a spatially explicit approach for the state of Bavaria in Germany. The main consequence emerging from depopulation is not only the increase on size and number of very low populated regions but also growing city-sizes, which up to now already have difficulties of being supplied with sufficient energy. Especially the difference in needs for the electricity grid length per person is going to be even more pronounced than already today. The resulting costs per person to provide everyone with a reliable electricity supply will diverge similarly between urbanized and rural regions. The medium and low voltage grids should be capable of delivering sufficient electricity to users and simultaneously allow the integration of distributed renewable generation installations. While data for analysing the transmission systems (high voltage grids) are widely available, spatial and attribute data of the medium and mainly the low voltage grids are scarce. The first step for the analysis of urbanization and rural depopulation effects on the future Bavarian low and medium voltage grid therefore is the estimation of todays’ electric grid. The present study proposes a method that relies on a) a data set that estimates the topology of the medium and low voltage grids of Bavaria (Germany) based on a minimum spanning tree principle, and b) data from the LUISA territorial modelling platform of the European Commission to calculate grid requirements for the years 2030 and 2050. Two alternative paths are proposed to carry out grid requirement estimations. The first is based on population data and the second on land use data. Grid length typologies are created based on population thresholds or land use types for 2010. The same typologies are afterwards used to extrapolate grid requirements for the future, which follow the population and land use changes of the LUISA data set. The future estimations are therefore in conformity with the forecasts utilized by the European Commission. As a reference base map for comparing grid estimations based on population or land use clusters, the length of the grid calculated based on a) is cumulated for each square kilometer so that the resolution and extend match the LUISA data for Bavaria (the map on the left is the reference map for the medium voltage grid). Results show that when estimating the current electricity grid based on land use clustering, it is not possible to get close to the beforehand calculated reference map. Using population density clusters on the other hand, makes it feasible to estimate the current electric grid based on mean or median grid lengths per cluster category. When comparing statistics as well as the resulting maps, the best method to produce a grid map based on clusters, is when using the median grid length per population cluster category (e.g. map on the right for the medium voltage grid). When using the mean of each category, the results seem not to be as precise. In the particular case of Bavaria, the forecast shows that total grid length requirements will decrease until 2030 and 2050. In rather urbanized regions, the grid needs to be prepared for expansions, while in rural regions existent grid infrastructure will become unnecessary. Hot-spots of such changes can be located using the results of the presented methodology.

    NachhaltigF: Angewandte InformatikS: TC Freyung

    Vortrag

    Luis Ramirez Camargo

    Assessing Middle and Low Voltage Grid Requirements in Bavaria for the Decades to Come

    9th Energy Colloquium of the Munich School of Engineering, Shaping a Sustainable Energy Future, Garching Hochbrück

    2019

    NachhaltigF: Angewandte InformatikS: TC Freyung

    Vortrag

    Luis Ramirez Camargo

    Electricity demand forecast for Bavaria and the Czech Republic until 2050: can variable renewables cope with it?

    11th International Conference on Applied Energy (ICAE2019), Västerås, Sweden

    2019

    NachhaltigF: Angewandte InformatikS: TC Freyung

    Vortrag

    Javier Valdés

    Generating consumer load profiles to assess demand side management potential of industries.

    11th International Conference on Applied Energy (ICAE2019), Västerås, Sweden

    2019

    NachhaltigF: Angewandte InformatikS: TC Freyung

    Vortrag

    Javier Valdés

    The role of policy on the Chilean sustainable energy transition in historical perspective

    Energy and Society in Transition: 2nd International Conference on Energy Research and Social Science, Tempe, AZ, USA

    2019

    DigitalF: Angewandte InformatikS: TC Freyung

    Vortrag

    Anja Braehmer, Anne Weinfurtner

    Museum Uploaded. Digital technologies for cross-cultural museum work

    2019 9th International Conference on Advanced Computer Information Technologies (ACIT), České Budějovice, Czech Republic

    2019

    DigitalF: Angewandte InformatikS: TC Freyung

    Beitrag (Sammelband oder Tagungsband)

    Anja Braehmer, Wolfgang Dorner, Anne Weinfurtner

    Digital Technologies for Cross-Cultural and Cross-Medial Museum Work

    2019 9th International Conference on Advanced Computer Information Technologies (ACIT'2019) [Ceske Budejovice, Czech Republic, June 5-7, 2019]

    2019

    ISBN: 978-1-7281-0449-2

    DOI: 10.1109/ACITT.2019.8779854

    Abstract anzeigen

    This paper argues that a digital infrastructure is vital to the work of cultural institutions today. In order to develop a well running system for smaller museums, which are hardly ever center of focus of donating companies and sponsors, we develop four measures, an integrated content management and digital signage system, an application for smart phones and a 3D city model, that will allow the visitors to connect with the city's history, virtually and physically.