Research


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Research project (§ 26 & § 27)
Duration : 2015-10-01 - 2019-09-30

When dealing with emergency, two issues with fully different time requirements and operational objectives, and thus different methods and tools, have to be considered: emergency preparedness and emergency response. This project will address both issues by combining the efforts of organizations active in these two areas to make already identified deterministic reference tools and methods a decisive step toward. In particular capabilities of these methods and tools will be extended to tackle main categories of accident scenarios in main types of operating or foreseen water-cooled NPPs in Europe, including Spent Fuel Pools. A first task will be the identification of these categories of scenario, the proposition of a methodology for their description and the development of a database of scenarios. Building this database will constitute a first important step in the harmonisation goal defended in this project. Promising probabilistic approaches based on Bayesian Belief Networks (BBN) are currently developed to complement operational deterministic methodologies and tools by contributing to diagnosis accidental situations. The development of the methodologies will be pursued in this project with the extension of the existing deterministic ones to European reactors. Both approaches will be assessed against the above mentioned database of scenarios. Finally a comprehensive set of emergency exercises will be developed and proposed to be run by a large set of partners. A first series of exercises will address source term evaluations that will be compared to the reference source terms from the scenarios database. Then a second series of exercises will be proposed on the same scenarios that will be used for the first series but accounting for the main emergency objective : to protect the populations. Progresses made by the methods and tools developed within this project will be notably assessed by comparing the results obtained in these two series of exercises.
Research project (§ 26 & § 27)
Duration : 2017-04-01 - 2020-03-31

Soil erosion processes are highly dependent on the rainfall energy which is a function of the size and falling velocity of raindrops. Interactions between raindrop size, velocity and shape, wind speed and the intensity of the thunderstorm control the power of the erosive storm. As raindrops increase in size, their terminal velocity and momentum increase. Increasing raindrop size increases their kinetic energy which affects soil detachment and transport processes. Limited data on raindrop characteristics are available; most studies were performed in a laboratory or field setting covering only a few storms. Objectives of this study are to 1) quantify and compare drop size distributions of rainfall events at comparable locations in Austria, Czech Republic, and New Zealand, 2) derive rainfall kinetic energy (KE) - intensity (I) relationships for rainfall erosivity estimation, 3) evaluate temporal/seasonal distribution of the KE-I relationship, and 4) investigate the relationship between rainfall erosivity and soil erosion. At several sites in Austria, Czech Republic and New Zealand disdrometers will be installed to determine the erosive force of rainstorms. Relationships between rainfall kinetic energy and intensity will be determined with respect to seasonal/monthly variability. For those sites with measured wind data, the impact of wind speed and direction will be evaluated. Next to the disdrometers small erosion plots will be installed to register the erosive force of the rainfall events. Based on the obtained results we will check and possibly modify and adapt the existing correlations between rainfall energy and soil detachment and transport.
Research project (§ 26 & § 27)
Duration : 2017-01-01 - 2018-06-30

Research showed that in secondary school waste, waste prevention and especially food waste prevention is not introduced in curricula and therefore is no topic at the moment. This is also true for tourism schools. Therefore, within this projectdata on the knowledge of pupils in tourism schools on food waste and food waste prevention will be collected. Based on the outcomes of an extended inquiry teaching material will be developed and a lecture on food waste prevention will be implemented. The effect of this food waste prevention lecture will be evaluated.

Supervised Theses and Dissertations