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| 1 | Separating polydisperse particles using electrostatic precipitators with wire and spiked-wire discharge electrode design显示文摘 | Soren Sander Steffen Gawor Udo Fritsching | 2018 | Particuology2018，16，3： | 3 |
| 2 | Particle penetration in fiber filters显示文摘Particle separation from gases is an important unit operation in manifold industrial applications,such as those conducted in environmental protection.For analysis of particle penetration and separation in fiber filters,standard dust particles (Al2O3)were loaded in the gas flow of a filter test facility and deposited within new and uncharged fiber filters.The loaded filters were analyzed by micro-computer tomography and scanning electron microscopy.Three-dimensional tomograms of the samples show an exponential decay of the penetration depth of the particles.This dependency is confirmed by simulations conducted using the discrete element method coupled with computational fluid dynamics within unloaded and loaded fiber structures.Microscale processes of particle separation at the fibers as well as the filtration efficiency and time-dependent filtering process are derived from the simuiations.Local particle clustering in the filter medium and partial filter clogging are thus identified. | Norbert Riefler Martina Ulrich Marko Morshaiuser Udo Fritsching | 2018 | Particuology2018，16，5： | 3 |
| 3 | Dynamic flowsheet simulation of re-entrainment from particle layers formed inside electrostatic precipitators显示文摘Electrostatic precipitators clean away the particulate matter of exhaust gases in manifold industrial processes.Parameter studies of particle separation in the size range of several 100 nm to 25μm is of particular interest for the prediction of precipitation efficiencies and emissions.Models typically cover the transport of particles towards walls of the precipitator.However,no model yet covers the possible re-entrainment of particles from layers formed at the walls back into the gas flow.This study presents the implementation of a new time-resolving model for electrostatic precipitation utilizing a re-entrainment model.Experimental data support the results of modelling.The model uses a statistical approach based on properties of the particulate layer forming at the precipitator walls.The model is used for the analysis of the redispersion of particles in a laboratory-scale electrostatic precipitator(Sander,Gawor,&Fritsching,2018).Results show reduced precipitation efficiencies for particles larger than 5μm as particles have higher kinetic impact energies and lower bounding energy at the layer surface.Time dynamics reveal a steady-state behavior of the separation for CaCO3(limestone,trademark'Ulmer WeissR')while Al2O3(trademark'Pural NFR')precipitation is affected by layer buildup at the walls increasing over several minutes. | Soren Sander Udo Fritsching | 2020 | Particuology2020，18，6： | 2 |
| 4 | A mathematical model for cooling and rapid solidification of molten metal droplets 显示文摘 | Dirk Bergmann Udo Fritsching Klaus Bauckhage | 2000 | International Journal of Thermal Science2000，39，： | 1 |
| 5 | Mathematical modeling of spray forming process of tubular performs 显示文摘 | Cui Chengsong Fritsching Udo Sehulz | 2005 | Acta Mater2005，53，9： | 1 |
| 6 | Control of cooling during spray forming of bearing steel billets显示文摘 | Chengsong Cui Udo Fritsching Alwin Schulz | 2004 | Materials Science and Engineering A2004，383，： | 1 |
| 7 | In-situ particle temperature,velocity and size measurements in the spray forming process显示文摘 | Michaela Krauss Dirk Bergmann Udo Fritsching Klaus Bauckhage | 2002 | Materials Science and Engineering2002，326，： | 1 |
| 8 | In-situ particle temperature, velocity and size measurements in the spray forming process 显示文摘 | Michaela Krauss Dirk Bergmann Udo Fritsching* Klaus Bauckhage | 2002 | Materials Science and Engineering2002，，326： | 1 |
| 9 | DROPLETS AND PARTICLES IN SPRAYS: TAILORING PARTICLE PROPERTIES WITHIN SPRAY PROCESSES显示文摘Particle generation via atomization and spray processes is a widely applied method for powder production.By means of atomization processes, the relevant particle properties may be tailored to the powder user's need in a wide range. Understanding and control of the main subprocesses of atomization is a key feature for choosing a suitable type of spray process and operation conditions. Tailoring particle properties and extending the applications of particle production beyond the current limits is also possible in this way. This contribution highlights some features of spray processes for powder production, namely the gas- and fluid-dynamic processes involved, the materials-related subprocesses, and the formation of the multiphase flow in the spray. As an example, the production of fibre- or sphere-shaped particles from melt atomization is discussed. | Udo Fritsching | 2005 | China Particuology2005，3，1： | 1 |
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