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Auflistung nach Autor:in "Widok, Andi H."

1 - 4 von 4
  • Konferenzbeitrag
    Aggregation and Measurement of Social Sustainability and Social Capital with a Focus on Human Health
    (Advances and New Trends in Environmental Informatics - Stability, Continuity, Innovation, 2016) Widok, Andi H.; Wohlgemuth, Volker
  • Konferenzbeitrag
    Implementation of a modular web-based multi-method Tool for the Assessment of Biofuel Sustainability Standards
    (Innovations in Sharing Environmental Observations and Information, 2011) Widok, Andi H.; Ziep, Tobias; Wohlgemuth, Volker
    This paper deals with the scope and technical features of a tool that manages the evaluation of the impacts of biofuel production on the environment. It consists out of different modules that calculate a range of different lifecycle-based indicators (for example Greenhouse Gas emissions, hereafter GHG emissions). The data needed for the evaluation process consists of two parts. The first part is provided by the user in a webbased questionnaire. The second part contains LCI material and energy flow data and impact factors from the ecoinvent database and other scientific studies. The LCI data is imported into the database via an XML interface. To ensure easy and worldwide accessibility the tool is implemented as a web-based, database-assisted application. It was developed as combination of multiple modules for the web-content management system Drupal. The evaluation process covers the whole lifecycle of biofuels including cultivation, processing, blending and transportation cycles. These aspects of the lifecycle can be calculated separately, as they are implemented in different modules. For a combination of the modules and total evaluation the user has to provide information about the crop type / feedstock, the country, the climatic circumstances, the used fertilizers, pesticides, energy and material data for further processing to name but a few. Depending on the users choices the emissions and material flows for the given scenario are calculated for each phase. The results of each phase are cumulated, related to reference data and visualized.
  • Konferenzbeitrag
    Simulating Sustainability
    (Proceedings of the 27th Conference on Environmental Informatics - Informatics for Environmental Protection, Sustainable Development and Risk Management, 2013) Widok, Andi H.; Wohlgemuth, Volker
    This paper highlights specific steps considering the inclusion of a holistic sustainability approach in manufacturing companies by focusing especially on the integration of social criteria in an existing Environmental Management Information System (EMIS). This EMIS combines discrete event simulation (DES), life cycle analysis (LCA) as well as material flow analysis (MFA) and thus already encompasses the main aspects of the economical and the environmental perspective at least for the consideration in the production phase itself. The contribution will focus on the reasons for an integrated approach and the demarcation/mapping of social aspects and indicators for the integration in a single simulation software where the other two perspectives already exist. Moreover, methodologies picking up on holistic approaches on the sustainability assessment of the whole life cycle of products are highlighted.
  • Konferenzbeitrag
    Verbesserung der Nutzerfreundlichkeit einer Simulationssoftware für die integrierte Betrachtung verschiedener Nachhaltigkeitsperspektiven in Produktionssystemen
    (Proceedings of the 28th Conference on Environmental Informatics - Informatics for Environmental Protection, Sustainable Development and Risk Management, 2014) Widok, Andi H.; Wohlgemuth, Volker
    This paper depicts the design and development of an EMIS which is used for the modelling and simulation of sustainability aspects of production systems. The main intention of the development was the integration of different sustainability perspectives into a single model, which reduces the workload needed for the modelling of the production relevant entities. In this regard this contribution will shortly present the convictions that have led to the development and consequently the key features resulting from it. In addition it will highlight changes made to the software to enhance usability aspects further. Finally, it will conclude with a summary and present an outlook of future steps.