Hochschule für Architektur, Bau und Geomatik FHNW

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Bereich: Suchergebnisse

Gerade angezeigt 1 - 10 von 12
  • Publikation
    Experimental demonstration of grid-supportive scheduling of a polygeneration system using economic-MPC
    (Elsevier, 12.11.2021) Sawant, Parantapa; Bürger, Adrian; Felsmann, Clemens; Pfafferott, Jens
    Drawing off the technical flexibility of building polygeneration systems to support a rapidly expanding renewable electricity grid requires the application of advanced controllers like model predictive control (MPC) that can handle multiple inputs and outputs, uncertainties in forecast data, and plant constraints amongst other features. In this original work, an economic-MPC-based optimal scheduling of a real-world building energy system is demonstrated and its performance is evaluated against a conventional controller. The demonstration includes the steps to integrate an optimisation-based supervisory controller into a standard building automation and control system with off-the-shelf HVAC components and usage of state-of-art algorithms for solving complex nonlinear mixed integer optimal control problems. With the MPC, quantitative benefits in terms of 6–12% demand-cost savings and qualitative benefits in terms of better controller adaptability and hardware-friendly operation are identified. Further research potential for improving the MPC framework in terms of field-level stability, minimising constraint violations, and inter-system communication for its deployment in a prosumer-network is also identified.
    01A - Beitrag in wissenschaftlicher Zeitschrift
  • Publikation
    EU-Richtlinie zur Gesamtenergieeffizienz von Gebäuden und nationale Umsetzung in der DIN 18599
    (Verlag Solarpraxis, 2007) Hoffmann, Caroline; Kerschberger, Alfred; Brillinger, Martin; Binder, Markus
    Thema des Buches ist die energetische Sanierung von Wohngebäuden im Bestand. Das Ziel des Buches ist es, das Realisierbare zu fördern und dem Planer den Überblick zu erleichtern. Es informiert umfassend über die richtigen Maßnahmen, mit denen ein Niedrigenergie-Standard auch bei Bestandsgebäuden erzielt werden kann.
    04A - Beitrag Sammelband
  • Publikation
    Energieeffiziente Büro- und Verwaltungsgebäude. Analysen und Erfahrungen im Kontext des Förderkonzepts Energieoptimiertes Bauen
    (Springer-VDI-Verlag GmbH & Co. KG, 01.07.2007) Voss, Karsten; Hoffmann, Caroline; Herkel, Sebastian; Wagner, Andeas; Löhnert, Günter
    Der Beitrag berichtet über erreichte Kennwerte von Demonstrationsprojekten für Nichtwohngebäude im Neubau und Erfahrungen mit dem Einsatz von Wärmepumpen.
    01B - Beitrag in Magazin oder Zeitung
  • Publikation
    Was wissen wir über den Gebäudebestand an Nichtwohn- und Bürogebäuden in Deutschland und Europa?– eine Literaturrecherche
    (R. Oldenbourg, 2006) Hoffmann, Caroline
    Der Artikel stellt die vorhandenen Daten zum Energieverbrauch und zum Bestand von Bürogebäuden in Deutschland und im europäischen Ausland zusammen. Da einige Angaben nicht speziell für Bürogebäude erhältlich sind, schließt die Betrachtung Nichtwohngebäude ein.
    01A - Beitrag in wissenschaftlicher Zeitschrift
  • Publikation
    Real-time generalization of point data in mobile and web mapping using quadtrees
    (Taylor & Francis, 29.04.2013) Bereuter, Pia; Weibel, Robert
    With a focus on mobile and web mapping, we propose several algorithms for on-the-fly generalization of point data, such as points of interest (POIs) or large point collections. In order to achieve real-time performance, we use a quadtree data structure. With their hierarchical subdivision structure and progressive levels of detail, indices of the quadtree family lend themselves as auxiliary data structures to support algorithms for generalization operations, including selection, simplification, aggregation, and displacement of point data. The spatial index can further be used to generate several local and global measures that can then serve to make educated guesses on the density and proximity of points across map scales, and thus enable control of the operation of the generalization algorithms. An implementation of the proposed algorithms has shown that, and thanks to the quadtree index, real-time performance can be achieved even for large point sets. Furthermore, the quadtree data structure can be extended into a caching structure, which can be used to store pre-computed generalizations; thus, a desired level of detail (LOD) can simply be retrieved from cache.
    01A - Beitrag in wissenschaftlicher Zeitschrift
  • Publikation
    Content zooming and information exploration for web and mobile maps. Adaptation of real-time map generalisation to the information seeking strategies of web and mobile users
    (Lovoisier, 2013) Bereuter, Pia; Weibel, Robert; Burchardt, Dirk
    In the context of the development of mobile map applications with capabilities for map generalisation and abstraction, we propose a methodology for content exploration that uses a technique that we term content zooming to change the degree of abstraction of map content independently of the map scale. Content zooming allows overriding the effects of ‘standard’ map generalisation, focusing on optimised content representation to aid the information seeking task of a mobile user. It is thus complementary to map generalisation. The paper defines content zooming operations and proposes technical solutions for each of these, illustrating them with examples from a research prototype.
    01A - Beitrag in wissenschaftlicher Zeitschrift
  • Publikation
    Generalisation operators
    (Springer, 08.07.2014) Stanislawski, Lawrence V.; Buttenfield, Barbara P.; Bereuter, Pia; Savino, Sandro; Brewer, Cynthia A.; Burghardt, Dirk; Duchêne, Cécile; Mackaness, William
    This chapter summarises cartographic generalisation operators used to generalise geospatial data. It includes a review of recent approaches that have been tested or implemented to generalise networks, points, or groups. Emphasis is placed on recent advances that permit additional flexibility to tailor generalisation processing in particular geographic contexts, and to permit more advanced types of reasoning about spatial conflicts, preservation of specific feature characteristics, and local variations in geometry, content and enriched attribution. Rather than an exhaustive review of generalisation operators, the chapter devotes more attention to operators associated with network generalisation, which illustrates well the logic behind map generalisation developments. Three case studies demonstrate the application of operators to road thinning, to river network and braid pruning, and to hierarchical point elimination. The chapter closes with some summary comments and future directions.
    04A - Beitrag Sammelband
  • Publikation
    Editorial
    (Taylor & Francis, 23.01.2020) Touya, Guillaume; Bereuter, Pia; Raposo, Paulo
    01A - Beitrag in wissenschaftlicher Zeitschrift