Journal: Journal de Physique IV
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Abbreviation
J. Phys. IV France
Publisher
EDP Sciences
13 results
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Publications 1 - 10 of 13
- The Solar-Driven Coal/Fe3O4 Redox SystemItem type: Other Conference Item
Journal de Physique IVTamaura, Yutaka; Tsuji, M.; Ehrensberger, Köbi; et al. (1997)The solar-driven endothermic reaction of coal and magnetite was studied for mixing solar and fossil energies. The overall reaction can be represented by CHx + Fe3O4 = CO + 3FeO + 1/2xH2 where x depends on the coal(x= 0.2 in our study). Laboratory experimental studies with an equimolar mixture of anthracite coal and Fe3O4 powder using an infrared furnace showed rapid gas evolution above about 1200°C and 1bar, producing FeO(s) and a gas mixture containing a CO/CO2 molar ratio of 4.5. Solar-driven experiments were conducted using a high-flux solar furnace. Samples were directly exposed for short time intervals to a solar flux irradiation of 300 W/cm2. The carbon content decreased rapidly after only 1 second exposure, suggesting efficient heat transfer and chemical conversion by direct absorption of concentrated solar energy at the reaction site. The proposed solar thermochemical process offers the possibility of performing simultaneously the gasification of coal and reduction of iron oxide, and for producing a fuel with an upgraded calorific value. - Charge density wave gap in ZrTe3Item type: Other Conference Item
Journal de Physique IVPerucchi, A.; Degiorgi, L.; Berger, H. (2005) - Antimony in aquatic systemsItem type: Other Conference Item
Journal de Physique IVFilella, M.; Belzile, N.; Chen, Y.W.; et al. (2003) - Solar Energy Conversion into H2 Energy Using FerritesItem type: Conference Paper
Journal de Physique IV ~ 7th International Conference on Ferrites: ICF7 : Bordeaux, France, September 3-6, 1996Tamaura, Y.; Hasegawa, N.; Tsuji, M.; et al. (1997) - International R&D Collaboration in Developing Solar Thermal Technologies For Electric Power and Solar Chemistry: The SolarPACES Program of the International Energy AgencyItem type: Conference Paper
Journal de Physique IV ~ Proceedings of the 9th SolarPACES International Symposium on Solar Thermal Concentrating Technologies: STCT 9: Font-Romeu, France, 22-26 June, 1998Grasse, W.; Tyner, C.; Steinfeld, Aldo (1998) - The effect of composition and stress on the selection of epsilon ->tau transformation modes in MnAl-CItem type: Conference Paper
Journal de Physique IVSologubenko, Alla; Müllner, Peter; Heinrich, Helge; et al. (2003) - Magnetic field induced strains caused by different martensites in Ni-Mn-Ga alloysItem type: Conference Paper
Journal de Physique IVChernenko, V.A.; Müllner, P.; Woligarten, M.; et al. (2003) - Nucleation model for hcp martensiteItem type: Conference Paper
Journal de Physique IVHesemann, H.Th.; Müllner, P.; Kraft, O.; et al. (2003) - Lead fall-out isotopic signal over French northern AlpsItem type: Journal Article
Journal de Physique IVArnaud, F.; Revel, M.; Winiarski, T.; et al. (2003) - Perspectives of laser-photoacoustic spectroscopy in trace gas sensingItem type: Conference Paper
Journal de Physique IVSigrist, M.W.; Fischer, C. (2005)
Publications 1 - 10 of 13