In the framework of research collaboration with the company Hella Saturnus studies of flow and heat transfer fields in fog lamps with LED sources were performed. A special attention was devoted to interaction between solid (LED diode with electronics) and air, as well as to the influence of spectral zones on radiation absorption in plastic lens.The developed models enable faster and more accurate process of fog lamp design.
F.11 Development of a new service
COBISS.SI-ID: 17161494The energy utilization of municipal solid waste is possible with the appropriate integrated waste management system and utilization of appropriate technologies. In the process of development of a suitable Waste-to-Energy technology, the application of advanced engineering computer simulation tools (CFD) should become standard for every R&D in W-t-E technology design. CFD can provide results, comparable to tests on full scale equipment, and can therefore significantly shorten the development time of W-t-E technolgies. The developed processes enable faster and more economical introduction of solid waste utilization technologies.
F.10 Improvements to an existing technological process or technology
COBISS.SI-ID: 16760854Three different trashrack designs were examined and compared regarding energy losses. The river’s flow from 200 m upstream of the hydropower plant to the turbine inlet was simulated by 3D CFD simulations in order to predict the correct velocity field ahead of the trashrack. The local head-losses caused by the trashrack were then calculated using an empirical formula at each point of the velocity field, and finally integrated to obtain the gross head-loss caused by the specific trashrack design operating under selected flow rate. Annual losses during electricity production were predicted using experimentally-obtained river flow-rate data and the net profit loss calculated which served for the final study of the particular trashrack design’s economics.
F.11 Development of a new service
COBISS.SI-ID: 16979222The study presents the starting points for development of long term and integral management of sediments on Hydro power plants on river Drava in Slovenia, specifically in pumped storage HPP Kozjak. The study includes data of Slovenian Environment Agency in connection with hydrological monitoring of surface waters in Slovenia, reccomendations of World Meteorological Organization for monitoring, detailed descriptions of standardized sampling and analysis methods of suspended sediments. The basic aim of the study is to propose and argument suitable means of sediment control, which would enable long term reduction of negative influences on accumulation reservoirs.
F.23 Development of new system-wide, normative and programme solutions, and methods
COBISS.SI-ID: 16897814