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Abstract
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| This work aims at understanding the energy loss in the polysilicon deposition reactor during the production of solar grade silicon. First, three state-of-the-art reactor configurations (36 rods in three rings, 48 rods in three rings and 60 rods in four rings) are explained, detailing the particular radiation transfer of each rod toward the wall. Based on this analysis, some proposals for diminishing the energy loss are proposed: enlarge the reactor capacities and improve the properties of the reactor wall. The impact of each proposal on the energy savings is quantified. If the reactor capacity is enlarged from 36 to 60 rods, the energy savings are around 8 kWh per kg of polysilicon produced (kWh kg-1). Increasing the reflectivity of the wall, the savings are around 12 kWh kg-1. | |
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International
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No |
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Congress
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Silicon for the Chemical and Solar Industry X |
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960 |
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Place
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A¿lesund - Geiranger, Norway |
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Reviewers
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Si |
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ISBN/ISSN
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0000-0000 |
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Start Date
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28/06/2010 |
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End Date
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02/07/2010 |
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From page
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1 |
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To page
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7 |
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Proceedings |