Using of Thermoelectric Devices in Photovoltaic Cells in Order to Increase Efficiency
Publish place: 1st Iranian National Conference Electerical Engineering
Publish Year: 1392
نوع سند: مقاله کنفرانسی
زبان: English
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شناسه ملی سند علمی:
INCEE01_037
تاریخ نمایه سازی: 25 تیر 1393
Abstract:
Outdoor performance of photovoltaic (PV) modules suffers from elevated temperatures. Conversion efficiency losses of up to about ٢٥٪ canresult, depending on the type of integration of the modules in the roof. Cooling of modules would therefore enhance global PV performance. Instead ofmodule cooling we propose to use the thermal waste by attaching thermoelectric (TE) converters to the back of PV modules, to form a PV–TE hybrid module. A new approach to thermoelectric power generation using large area pn-junctions is presented. Thermally generated electron-hole pairs are separated by the builtin potential gradient of the pn-junction. A temperature gradient applied along this pn-junction causes a flux of both carrier types from the hot to the cold region, which has higher efficiency and lower cost than convention methods of thermoelectric power generation. The use of thermoelectric devices based on silicon material results in increasing efficiency of PV cell from ٦.٨٪ up to ١٠.٩٢٪ at ٨٣oC.
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Authors
Shirin ahadi
M. Sc. student, Electronics Department, Arak branch, Islamic Azad University, Arak, Iran
HamidReza Hoseini
Faculty member, Electronics Department, Arak branch, Islamic Azad University ,Arak, Iran
Rahim Faez
Associate Proffesor , Electronics Department, Sharif University of Technology, Tehran, Iran
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