Zobrazeno 1 - 10
of 41
pro vyhledávání: '"Lassi Karvonen"'
Autor:
Hannu Niemistö, Ville Ylä-Outinen, Ville Hovi, Timo Pättikangas, Sirpa Kallio, Lassi Karvonen, Ismo Karppinen, Marko Huttunen, Sami Tuuri
Publikováno v:
Hovi, V, Huttunen, M, Karppinen, I, Pättikangas, T, Niemistö, H, Karvonen, L, Kallio, S, Tuuri, S & Ylä-Outinen, V 2017, ' Integrated transient simulation of a BFB boiler with CFD models for the BFB furnace and dynamic system models for the steam cycle and boiler operation ', Energy Procedia, vol. 120, no. August, pp. 508-515 . https://doi.org/10.1016/j.egypro.2017.07.186
An approach for integrated transient simulation of a BFB boiler furnace and the coupled steam cycle is presented. The BFB furnace is simulated with in-house CFD models implemented in the ANSYS Fluent® software. The boiler steam cycle with control lo
Publikováno v:
Huttunen, M, Peltola, J, Kallio, S, Karvonen, L, Niemi, T & Ylä-Outinen, V 2017, ' Analysis of the processes in fluidized bed boiler furnaces during load changes ', Energy Procedia, vol. 120, pp. 580-587 . https://doi.org/10.1016/j.egypro.2017.07.175
Due to increased share of intermittent renewable energy production, flexibility demands for boiler based energy production have increased in the form of required faster ramp rates and lower allowed minimum loads. To illustrate the effects of changes
Publikováno v:
Journal of Alloys and Compounds. 644:297-303
Li3MnO4, a lithium rich phase containing manganese (V), is a promising cathode material for Li-ion batteries due to its very high theoretical capacity (698 A h kg−1). Li3MnO4 was synthesized from freeze dried precursors at 398 K. Combined structura
Autor:
Jagoda Kuc, Santhosh Kumar Matam, Yucheng Zhang, Lassi Karvonen, Anke Weidenkaff, Rolf Erni, Songhak Yoon
Publikováno v:
physica status solidi (RRL) - Rapid Research Letters. 9:282-287
The self-regenerative property of LaCo1–x –yPdx Zny O3±δ and LaFe1–x –yPdx Zny O3±δ solid solutions with monometallic Pd or bimetallic Pd/Zn substituents for Co or Fe is studied under a redox cycle by high angular annular dark-field scann
Publikováno v:
Solid State Ionics. 266:36-43
Calcium manganate Ruddlesden–Popper phases Ca2MnO4–δ were prepared by soft chemistry and treated with acid to extract a part of the calcium ions. Combined structural, morphological and spectroscopic analyses by XRD, SEM/EDX, TEM and Raman reveal
Autor:
Kaspar R. Daellenbach, Imad El-Haddad, Lassi Karvonen, Athanasia Vlachou, Joel C. Corbin, Jay G. Slowik, Maarten F. Heringa, Emily A. Bruns, Samuel M. Luedin, Jean-Luc Jaffrezo, Sönke Szidat, Andrea Piazzalunga, Raquel Gonzalez, Paola Fermo, Valentin Pflueger, Guido Vogel, Urs Baltensperger, André S. H. Prévôt
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6a9a747db583b534b1e17903d989caf4
https://doi.org/10.5194/acp-2017-683-supplement
https://doi.org/10.5194/acp-2017-683-supplement
Autor:
Theresa Magorian-Friedlmeier, Carolin M. Sutter-Fella, Lukas Kranz, Alexander R. Uhl, Songhak Yoon, Alexandra Rieger, Harald Hagendorfer, Fabio Lamattina, Debora Keller, Erik Ahlswede, Dirk Vangenechten, Fabian Pianezzi, Lassi Karvonen, Peter Fuchs, Yaroslav E. Romanyuk, Fabrice Stassin, Ayodhya N. Tiwari
Publikováno v:
Progress in Photovoltaics: Research and Applications. 23:1110-1119
Large-grained CuInSe2 absorber layers are synthesized using a non-vacuum process based on nanoparticle ink precursors and selenization by rapid thermal processing (RTP). The use of hydroxide-based particles in organic solvents allows for the conversi
Autor:
Lassi Karvonen, Jürg Hulliger, Leyre Sagarna, Alessandra Beni, Anke Weidenkaff, Patrik Schmutz, Sascha Populoh, Krzysztof Gałązka, Wenjie Xie
Publikováno v:
physica status solidi (a). 211:1259-1266
Thermoelectric half-Heusler compounds with the nominal composition (Ti0.33Zr0.33Hf0.33)NiSn were synthesized and exposed to operating conditions, i.e., elevated temperatures and oxidizing atmosphere. As-prepared samples were found to be a stable mult
Autor:
Leyre Sagarna, Sascha Populoh, Anke Weidenkaff, Matthias Schrade, Roland Hauert, Alexandra E. Maegli, Lassi Karvonen, Andrey Shkabko, James Eilertsen
Publikováno v:
The Journal of Physical Chemistry C. 118:7821-7831
The electronic transport properties of perovskite-type oxides with promising thermoelectric properties can be tuned by cationic substitutions as well as by creating oxygen vacancies. Here, two series of SrxEu1–xTiO3-δ (x = 0.00, 0.03, 0.25, 0.75,
Autor:
Andrey Shkabko, Peter Jakes, Simone Pokrant, Rüdiger-A. Eichel, Lassi Karvonen, Stefan G. Ebbinghaus, Krzysztof Gałązka, Songhak Yoon, Anke Weidenkaff, Sascha Populoh, Myriam H. Aguirre, Leyre Sagarna, Alexandra E. Maegli
Publikováno v:
Zeitschrift für anorganische und allgemeine Chemie. 640:797-804
Perovskite-type LaVO2.78N0.10 powder was synthesized by thermal ammonolysis of the oxide precursor LaVO4. By X-ray, neutron, and electron diffraction an orthorhombic crystal structure with space group Pnma was identified. XANES spectra showed that th