Radiation heat savings in polysilicon production: validation of results through a CVD laboratory prototype

Ramos Cabal, Alba; Cañizo Nadal, Carlos del; Valdehita Torija, Javier; Zamorano Saavedra, Juan Carlos y Luque López, Antonio (2013). Radiation heat savings in polysilicon production: validation of results through a CVD laboratory prototype. "Journal of Crystal Growth", v. 374 ; pp. 5-10. ISSN 0022-0248. https://doi.org/10.1016/j.jcrysgro.2013.03.043.

Descripción

Título: Radiation heat savings in polysilicon production: validation of results through a CVD laboratory prototype
Autor/es:
  • Ramos Cabal, Alba
  • Cañizo Nadal, Carlos del
  • Valdehita Torija, Javier
  • Zamorano Saavedra, Juan Carlos
  • Luque López, Antonio
Tipo de Documento: Artículo
Título de Revista/Publicación: Journal of Crystal Growth
Fecha: Julio 2013
Volumen: 374
Materias:
Palabras Clave Informales: A1. Radiation; A3. Chemical vapor deposition processes; B1. Polysilicon; B2. Solar grade silicon
Escuela: Instituto de Energía Solar (IES) (UPM)
Departamento: Otro
Licencias Creative Commons: Reconocimiento - Sin obra derivada - No comercial

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Resumen

This work aims at a deeper understanding of the energy loss phenomenon in polysilicon production reactors by the so-called Siemens process. Contributions to the energy consumption of the polysilicon deposition step are studied in this paper, focusing on the radiation heat loss phenomenon. A theoretical model for radiation heat loss calculations is experimentally validated with the help of a laboratory CVD prototype. Following the results of the model, relevant parameters that directly affect the amount of radiation heat losses are put forward. Numerical results of the model applied to a state-of-the-art industrial reactor show the influence of these parameters on energy consumption due to radiation per kilogram of silicon produced; the radiation heat loss can be reduced by 3.8% when the reactor inner wall radius is reduced from 0.78 to 0.70 m, by 25% when the wall emissivity is reduced from 0.5 to 0.3, and by 12% when the final rod diameter is increased from 12 to 15 cm.

Más información

ID de Registro: 26089
Identificador DC: http://oa.upm.es/26089/
Identificador OAI: oai:oa.upm.es:26089
Identificador DOI: 10.1016/j.jcrysgro.2013.03.043
URL Oficial: http://www.sciencedirect.com/science/article/pii/S0022024813002327
Depositado por: Memoria Investigacion
Depositado el: 19 May 2014 18:19
Ultima Modificación: 01 Ago 2015 22:56
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