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《能源前沿(英文)》 >> 2013年 第7卷 第2期 doi: 10.1007/s11708-013-0253-y

Experimental investigation and feasibility analysis of a thermophotovoltaic cogeneration system in high-temperature production processes

1. Department of Thermal Science and Energy Engineering, University of Science and Technology of China, Hefei 230027, China; 2. Department of Thermal Science and Energy Engineering, University of Science and Technology of China, Hefei 230027, China; School of Physics Science and Technology, Soochow University, Suzhou 215006, China; 3. School of Physics Science and Technology, Soochow University, Suzhou 215006, China

发布日期: 2013-06-05

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摘要

The experimental - characteristics of a Si cell module in a thermophotovoltaic (TPV) system were investigated using SiC or Yb O radiator. The results demonstrate that the short-circuit current increases while the open-circuit voltage, along with the fill factor, decreases with the cell temperature when the radiator temperature increases from 1273 to 1573 K, leading to a suppressed increase of the output power of the system. The maximum output power density of the cell module is 0.05 W/cm when the temperature of the SiC radiator is 1573 K, while the electrical efficiency of the system is only 0.22%. The efficiency is 1.3% with a Yb O radiator at the same temperature, however, the maximum output power density drops to 0.03 W/cm . The values of the open-circuit voltage and the maximum output power obtained from the theoretical model conform to the experimental ones. But the theoretical short-circuit current is higher because of the existence of the contact resistance inside the cell module. In addition, the performance and cost of TPV cogeneration systems with the SiC or Yb O radiator using industrial high-temperature waste heat were analyzed. The system electrical efficiency could reach 3.1% with a Yb O radiator at 1573 K. The system cost and investment recovery period are 6732 EUR/kWel and 14 years, respectively.

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