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28 results on '"Minster, O."'

1. European Space Agency experiments on thermodiffusion of fluid mixtures in space

Author

Braibanti, M., Artola, P. A., Baaske, P., Bataller, H., Bazile, H. P., Bou-Ali, M. M., Cannell, D. S., Carpineti, M., Cerbino, R., Croccolo, F., Diaz, J., Donev, A., Errarte, A., Ezquerro, J. M., Frutos-Pastor, A., Galand, Q., Galliero, G., Gaponenko, Y., García Fernández, Loreto, Gavaldá, J., Giavazzi, F., Giglio, M., Giraudet, C., Hoang, H., Kufner, E., Köhler, W., Lapeira, E., Laverón-Simavilla, A., Legros, J. C., Lizarraga, I., Lyubimova, T., Mazzoni, S., Melville, N., Mialdun, A., Minster, O., Montel, F., Molster, F. J., Ortiz De Zárate Leira, José María, Rodríguez, J., Rousseau, B., Ruiz, X., Ryzhkov, I. I., Schraml, M., Shevtsova, V., Takacs, C. J., Triller, T., Van Vaerenbergh, S., Vailati, A., Verga, A., Vermorel, R., Vesovic, V., Yasnou, V., Xu, S., Zapf, D., Zhang, K, Braibanti, M., Artola, P. A., Baaske, P., Bataller, H., Bazile, H. P., Bou-Ali, M. M., Cannell, D. S., Carpineti, M., Cerbino, R., Croccolo, F., Diaz, J., Donev, A., Errarte, A., Ezquerro, J. M., Frutos-Pastor, A., Galand, Q., Galliero, G., Gaponenko, Y., García Fernández, Loreto, Gavaldá, J., Giavazzi, F., Giglio, M., Giraudet, C., Hoang, H., Kufner, E., Köhler, W., Lapeira, E., Laverón-Simavilla, A., Legros, J. C., Lizarraga, I., Lyubimova, T., Mazzoni, S., Melville, N., Mialdun, A., Minster, O., Montel, F., Molster, F. J., Ortiz De Zárate Leira, José María, Rodríguez, J., Rousseau, B., Ruiz, X., Ryzhkov, I. I., Schraml, M., Shevtsova, V., Takacs, C. J., Triller, T., Van Vaerenbergh, S., Vailati, A., Verga, A., Vermorel, R., Vesovic, V., Yasnou, V., Xu, S., Zapf, D., and Zhang, K

Abstract

This paper describes the European Space Agency (ESA) experiments devoted to study thermodiffusion of fluid mixtures in microgravity environment, where sedimentation and convection do not affect the mass flow induced by the Soret effect. First, the experiments performed on binary mixtures in the IVIDIL and GRADFLEX experiments are described. Then, further experiments on ternary mixtures and complex fluids performed in DCMIX and planned to be performed in the context of the NEUF-DIX project are presented. Finally, multi-component mixtures studied in the SCCO project are detailed., European Space Agency, Centre National d´Etudes Spatiales, Agenzia Spaziale Italiana, Helmholtz Association German Aerospace Centre, Belgian Federal Science Policy Office, ROSCOSMOS, NASA, CSU, Gobierno Vasco, Helmholtz Association German Aerospace Centre, Depto. de Estructura de la Materia, Física Térmica y Electrónica, Fac. de Ciencias Físicas, TRUE, pub

Published
2024

3. European Space Agency experiments on thermodiffusion of fluid mixtures in space

Author

Braibanti, M., Artola, P. -A., Baaske, P., Bataller, H., Bazile, J. -P., Bou-Ali, M. M., Cannell, D. S., Carpineti, M., Cerbino, R., Croccolo, F., Diaz, J., Donev, A., Errarte, A., Ezquerro, J. M., Frutos-Pastor, A., Galand, Q., Galliero, G., Gaponenko, Y., García-Fernández, L., Gavaldá, J., Giavazzi, F., Giglio, M., Giraudet, C., Hoang, H., Kufner, E., Köhler, W., Lapeira, E., Laverón-Simavilla, A., Legros, J. -C., Lizarraga, I., Lyubimova, T., Mazzoni, S., Melville, N., Mialdun, A., Minster, O., Montel, F., Molster, F. J., Ortiz de Zárate, J. M., Rodríguez, J., Rousseau, B., Ruiz, X., Ryzhkov, I. I., Schraml, M., Shevtsova, V., Takacs, C. J., Triller, T., Van Vaerenbergh, S., Vailati, A., Verga, A., Vermorel, R., Vesovic, V., Yasnou, V., Xu, S., Zapf, D., and Zhang, K.

Published
2019
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4. Columnar and Equiaxed Solidification of Al-7 wt.% Si Alloys in Reduced Gravity in the Framework of the CETSOL Project

Author

Zimmermann, G., Sturz, L., Nguyen-Thi, H., Mangelinck-Noel, N., Li, Y. Z., Gandin, C.-A., Fleurisson, R., Guillemot, G., McFadden, S., Mooney, R. P., Voorhees, P., Roosz, A., Ronaföldi, A., Beckermann, C., Karma, A., Chen, C.-H., Warnken, N., Saad, A., Grün, G.-U., Grohn, M., Poitrault, I., Pehl, T., Nagy, I., Todt, D., Minster, O., and Sillekens, W.

Published
2017
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8. First Investigations with the Protein Crystallisation Diagnostics Facility on board the International Space Station

Author

Pletser, V., Decanniere, K., Maes, D., Otalora, F., Jose A. Gavira, Patiño, L. D., Evrard, C., Weerdt, C., Mazzoni, S., Minster, O., Potthast, L., Bosch, R., Lautenschlager, P., and Structural Biology Brussels

Subjects
protein crystallization, crystal growth, Nucleation, PCDF, International Space Station, microgravity
Abstract

The Protein Crystallization Diagnostics Facility (PCDF) is an instrument developed by Astrium under an ESA contract to observe and study with advanced diagnostics nucleation and crystallisation processes of molecules from solutions in long duration microgravity on board the International Space Station. The first experiment PROTEIN flown on PCDF aimed at unraveling physical processes and relating the forma-tion of defects in crystals to their growth conditions. This PCDF experiment was flown on the ISS integrated in the European Drawer Rack and was followed and teleoperated by the supporting science teams from User Sup-port Operation Centers on ground. Future experiments will utilize the existing infrastructure to support advanced light scattering capabilities to en-able investigations of various solutions including proteins, zeolites and colloids. The paper recalls the PCDF design. The aim of the PROTEIN experiment is summarized and first results are presented. The future evolution of PCDF is addressed at the end.

Published
2009

9. FASTER: Facility for Adsorption and Surface Tension Research

Author

Vincent-Bonnieu S., Minster O., Schmidt-Harms C., Liggieri L., Loglio G., Miller R., Steinchen A., Antoni M., Clausse D., Del Gaudio L., Dalmazzone C., Karapantsios T., Dutschk V., Rubio R. G., and Simoncini M.

Subjects
dilational rheology, drop interfaces, tensiometry, emulsions, adsoprtion
Published
2007

11. Electromagnetic Levitation On Board the International Space Station

Author

Voss D., Minster O., Jarvis D., Manieri P., Dreier W., Kuhl R., Egry I., Herlach D., Kolbe M., Volkmann T., Lohoefer G., Holland-Moritz D., Loeser W., Hermann R., Gandin C., Battezzati L., Etay J., Fecht H., Wunderlich R., Ricci E., Pottlacher G., and Seethar

Subjects
Electromagnetic levitation, Material Science, ISS, Thermophysical properties, Levitation, EML
Published
2007

18. Non-equilibrium solidification, modelling for microstructure engineering of industrial alloys (NEQUISOL)

Author

Herlach, D. M., Klein, S., Peter Galenko, Gandin, C. -A, Tourret, D., Henein, H., Ilbagi, A., Garcia-Escorial, A., Minster, O., Voss, D., DLR Institut für Materialphysik im Weltraum, Deutsches Zentrum für Luft- und Raumfahrt [Köln] (DLR), Centre de Mise en Forme des Matériaux (CEMEF), MINES ParisTech - École nationale supérieure des mines de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS), Chemical and Materials Engineering Department, University of Alberta, Dept. Metalurgia Fisica, CENIM-CSIC, Directorate of Human Spaceflight and Operations, and European Space Agency (ESA)

Subjects
Condensed Matter::Materials Science, Al-based alloys, NEQUISOL, [SPI.MAT]Engineering Sciences [physics]/Materials
Abstract

International audience; Within NEQUISOL project, crystallisation kinetics and microstructure evolution in undercooled melts of Al-based alloys is investigated. Different techniques are applied for containerless processing of the different alloys. These allow for undercooling a liquid far below its equilibrium melting temperature. An undercooled melt is in a metastable state giving access of different solidification pathways the system can take. Solidification starts with nucleation and is completed by subsequent growth of crystals. The negative temperature gradient in front of the solid-liquid interface and the concentration gradient in alloys destabilize a planar interface leading to dendrite growth. Dendrite growth dynamics and microstructure evolution in undercooled melts is investigated on drops undercooled by Electro-Magnetic Levitation (EML). The speed of the propagating solidification front is monitored by means of a high-speed camera with a maximum frequency of 120 000 pictures per second. Under Earth conditions strong alternating electromagnetic fields are needed to compensate the gravitational force. This, in turn, causes forced convection due to the strong stirring effects. Therefore, equivalent experiments are conducted under microgravity conditions using the TEMPUS facility for electromagnetic levitation in reduced gravity during parabolic flights and during TEXUS sounding rocket missions. Experiments on four selected alloys, Al 40Ni 60, Al 70Ni 30, Al 65Ni 35 and Al 89Cu 11 are in preparation to be performed on board the ISS using the Electro-Magnetic Levitator currently under development by DLR/ESA. In addition atomization facilities are operated that combines containerless processing with large cooling rates and reduced gravity on Earth. Atomization is an industrial processing route to produce metastable materials in large amount. We present a comparison of first experiments conducted in reduced gravity (parabolic flight, TEXUS) and reference experiments on Earth of measurements of the growth velocity as a function of undercooling of the congruently melt-ing Al 50Ni 50 alloy and the Raney type alloy Al 68.5Ni 31.5. The latter one is of special interest for industry because of its extraordinary potency as a catalyst. The experiments clearly demonstrate how important convection is in heat and mass transport processes which control dendrite growth dynamics and, hence, microstructure evolution. A sharp interface theory is presented that takes into account heat and mass transport by forced convection. This mesoscopic model is able to predict the dendrite growth kinetics obtained both on Earth as well as in reduced gravity. In addition, mesoscopic modelling is combined with macroscopic modelling to describe the entire solidification process involving several recalescences and the non-equilibrium solidification of several solid microstructures.

23. Large scale experiments on spacecraft fire safety

Author

Urban, D. L., Ruff, G. A., Minster, O., Fcrnandez-Pello, A. C., T Ien, J. S., Jose Torero, Legros, G., Eigenbrod, C., Smirnov, N., Fujita, O., Cowlard, A. J., Rouvreau, S., Toth, B., and Jomaas, C.

26. Thermodiffusion in multicomponent n -alkane mixtures.

Author

Galliero G, Bataller H, Bazile JP, Diaz J, Croccolo F, Hoang H, Vermorel R, Artola PA, Rousseau B, Vesovic V, Bou-Ali MM, Ortiz de Zárate JM, Xu S, Zhang K, Montel F, Verga A, and Minster O

Abstract

Compositional grading within a mixture has a strong impact on the evaluation of the pre-exploitation distribution of hydrocarbons in underground layers and sediments. Thermodiffusion, which leads to a partial diffusive separation of species in a mixture due to the geothermal gradient, is thought to play an important role in determining the distribution of species in a reservoir. However, despite recent progress, thermodiffusion is still difficult to measure and model in multicomponent mixtures. In this work, we report on experimental investigations of the thermodiffusion of multicomponent n -alkane mixtures at pressure above 30 MPa. The experiments have been conducted in space onboard the Shi Jian 10 spacecraft so as to isolate the studied phenomena from convection. For the two exploitable cells, containing a ternary liquid mixture and a condensate gas, measurements have shown that the lightest and heaviest species had a tendency to migrate, relatively to the rest of the species, to the hot and cold region, respectively. These trends have been confirmed by molecular dynamics simulations. The measured condensate gas data have been used to quantify the influence of thermodiffusion on the initial fluid distribution of an idealised one dimension reservoir. The results obtained indicate that thermodiffusion tends to noticeably counteract the influence of gravitational segregation on the vertical distribution of species, which could result in an unstable fluid column. This confirms that, in oil and gas reservoirs, the availability of thermodiffusion data for multicomponent mixtures is crucial for a correct evaluation of the initial state fluid distribution.

Published
2017
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