Journal de Physique IV

Journal: Journal de Physique IV

Abbreviation

J. Phys. IV France

Publisher

EDP Sciences

ISSN

1155-4339
1764-7177

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Publications 1 - 10 of 13

The Solar-Driven Coal/Fe3O4 Redox System
Tamaura, Yutaka; Tsuji, M.; Ehrensberger, Köbi; et al. (1997)
Journal de Physique IV
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 ZrTe3
Perucchi, A.; Degiorgi, L.; Berger, H. (2005)
Journal de Physique IV
Antimony in aquatic systems
Filella, M.; Belzile, N.; Chen, Y.W.; et al. (2003)
Journal de Physique IV
Solar Energy Conversion into H2 Energy Using Ferrites
Tamaura, Y.; Hasegawa, N.; Tsuji, M.; et al. (1997)
Journal de Physique IV ~ 7th International Conference on Ferrites: ICF7 : Bordeaux, France, September 3-6, 1996
International R&D Collaboration in Developing Solar Thermal Technologies For Electric Power and Solar Chemistry: The SolarPACES Program of the International Energy Agency
Grasse, W.; Tyner, C.; Steinfeld, Aldo (1998)
Journal de Physique IV ~ Proceedings of the 9th SolarPACES International Symposium on Solar Thermal Concentrating Technologies: STCT 9: Font-Romeu, France, 22-26 June, 1998
The effect of composition and stress on the selection of epsilon ->tau transformation modes in MnAl-C
Sologubenko, Alla; Müllner, Peter; Heinrich, Helge; et al. (2003)
Journal de Physique IV
Magnetic field induced strains caused by different martensites in Ni-Mn-Ga alloys
Chernenko, V.A.; Müllner, P.; Woligarten, M.; et al. (2003)
Journal de Physique IV
Nucleation model for hcp martensite
Hesemann, H.Th.; Müllner, P.; Kraft, O.; et al. (2003)
Journal de Physique IV
Lead fall-out isotopic signal over French northern Alps
Arnaud, F.; Revel, M.; Winiarski, T.; et al. (2003)
Journal de Physique IV
Perspectives of laser-photoacoustic spectroscopy in trace gas sensing
Sigrist, M.W.; Fischer, C. (2005)
Journal de Physique IV

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Journal: Journal de Physique IV

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