TY - JOUR
T1 - Dynamic simulation of temperature and iron distributions in a casting process for crystalline silicon solar cells with a global model
AU - Liu, Lijun
AU - Nakano, Satoshi
AU - Kakimoto, Koichi
N1 - Funding Information:
This work was supported by a NEDO project, a Grant-in-Aid for Scientific Research (B) 14350010 and a grant-in-aid for the creation of innovation through business-academy-public sector cooperation from the Japanese Ministry of Education, Science, Sports and Culture.
PY - 2006/7/1
Y1 - 2006/7/1
N2 - The casting method is a key method for large-scale production of multi-crystalline silicon for use in highly efficient solar cells in the photovoltaic industry. Since the efficiency of solar cells depends on the quality of the multi-crystalline silicon, it is important to optimize the casting process to control temperature and iron distributions in a silicon ingot. We developed a new transient global model for the casting process and carried out simulations to study the temperature and iron distributions in a silicon ingot during solidification. Conductive heat transfer and radiative heat exchange in a casting furnace and convective heat transfer in the melt in a crucible are coupled to each other. These heat exchanges were solved iteratively by a finite-volume method in a transient way. Time-dependent distributions of iron and temperature in a silicon ingot during the casting process were numerically studied.
AB - The casting method is a key method for large-scale production of multi-crystalline silicon for use in highly efficient solar cells in the photovoltaic industry. Since the efficiency of solar cells depends on the quality of the multi-crystalline silicon, it is important to optimize the casting process to control temperature and iron distributions in a silicon ingot. We developed a new transient global model for the casting process and carried out simulations to study the temperature and iron distributions in a silicon ingot during solidification. Conductive heat transfer and radiative heat exchange in a casting furnace and convective heat transfer in the melt in a crucible are coupled to each other. These heat exchanges were solved iteratively by a finite-volume method in a transient way. Time-dependent distributions of iron and temperature in a silicon ingot during the casting process were numerically studied.
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U2 - 10.1016/j.jcrysgro.2006.04.060
DO - 10.1016/j.jcrysgro.2006.04.060
M3 - Article
AN - SCOPUS:33745825155
VL - 292
SP - 515
EP - 518
JO - Journal of Crystal Growth
JF - Journal of Crystal Growth
SN - 0022-0248
IS - 2
ER -