Ciftja arjan (6 risultati)

Taschenbuch. Condizione: Neu. Solar silicon refining | Inclusions, settling, filtration, wetting | Arjan Ciftja | Taschenbuch | 176 S. | Englisch | 2010 | LAP LAMBERT Academic Publishing | EAN 9783838307381 | Verantwortliche Person für die EU: preigu GmbH & Co. KG, Lengericher Landstr. 19, 49078 Osnabrück, mail[at]preigu[dot]de | Anbieter: preigu.…

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Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -The main objective of the present work is the removal of inclusions from silicon scrap and metallurgical grade silicon. To reach this goal, two various routes are investigated. First, settling of SiC particles from molten silicon followed by directional solidification is reported in this book. Then, removal of SiC and Si3N4 inclusions in silicon scrap by filtration with foam filters and wettabilities of silicon on graphite materials are studied. To supply the increasing needs of the PV industry it is necessary to produce a low cost silicon feedstock. The high carbon content of the metallurgical grade silicon in the form of SiC particles, needs to be removed before the silicon could be used as a feedstock to PV industry. The difference in density between the particles and the melt gives the SiC particles a relatively high settling velocity leading to a high removal efficiency. However, higher removal efficiencies are required. Filtration with foam filters appears to be very efficient and the removal efficiency for a 30 ppi SiC filter is more than 99%. A new filtration model named branch model is developed in this work. 176 pp. Englisch.…

Taschenbuch. Condizione: Neu. nach der Bestellung gedruckt Neuware - Printed after ordering - The main objective of the present work is the removal of inclusions from silicon scrap and metallurgical grade silicon. To reach this goal, two various routes are investigated. First, settling of SiC particles from molten silicon followed by directional solidification is reported in this book. Then, removal of SiC and Si3N4 inclusions in silicon scrap by filtration with foam filters and wettabilities of silicon on graphite materials are studied. To supply the increasing needs of the PV industry it is necessary to produce a low cost silicon feedstock. The high carbon content of the metallurgical grade silicon in the form of SiC particles, needs to be removed before the silicon could be used as a feedstock to PV industry. The difference in density between the particles and the melt gives the SiC particles a relatively high settling velocity leading to a high removal efficiency. However, higher removal efficiencies are required. Filtration with foam filters appears to be very efficient and the removal efficiency for a 30 ppi SiC filter is more than 99%. A new filtration model named branch model is developed in this work.…

Condizione: New. Dieser Artikel ist ein Print on Demand Artikel und wird nach Ihrer Bestellung fuer Sie gedruckt. The main objective of the present work is the removal of inclusions from silicon scrap and metallurgical grade silicon. To reach this goal, two various routes are investigated. First, settling of SiC particles from molten silicon followed by directional sol. …

Taschenbuch. Condizione: Neu. This item is printed on demand - Print on Demand Titel. Neuware -The main objective of the present work is the removal of inclusions from silicon scrap and metallurgical grade silicon. To reach this goal, two various routes are investigated. First, settling of SiC particles from molten silicon followed by directional solidification is reported in this book. Then, removal of SiC and Si3N4 inclusions in silicon scrap by filtration with foam filters and wettabilities of silicon on graphite materials are studied. To supply the increasing needs of the PV industry it is necessary to produce a low cost silicon feedstock. The high carbon content of the metallurgical grade silicon in the form of SiC particles, needs to be removed before the silicon could be used as a feedstock to PV industry. The difference in density between the particles and the melt gives the SiC particles a relatively high settling velocity leading to a high removal efficiency. However, higher removal efficiencies are required. Filtration with foam filters appears to be very efficient and the removal efficiency for a 30 ppi SiC filter is more than 99%. A new filtration model named branch model is developed in this work.VDM Verlag, Dudweiler Landstraße 99, 66123 Saarbrücken 176 pp. Englisch.…