INORGANIC MATERIALS AND CERAMIC MATRIX COMPOSITES |
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Finite Element Simulation and Design of Thermoelectric Generators Based on Bismuth Telluride Alloys |
WANG Yang1, ZHANG Xin1, LIU Hongliang1, WANG Yangzhong1, ZHANG Jiuxing1,2
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1 School of Materials Science and Engineering, Beijing University of Technology, Beijing 100022 2 School of Materials Science and Engineering, Hefei University of Technology, Hefei 230009 |
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Abstract Thermoelectric property and stress distribution were simulated by ANSYS software to provide the groundwork of device preparation based the material experiment. The computed results showed that the heat stress of the device was distributed on the contact surface of different mate-rials. It reached the highest refrigeration efficiency of 0.24 with the condition of current 9 A, 0 ℃ on the cold face and 50 ℃ difference. The hig-hest refrigeration capacity was 1.33 W with the current of 10 A and the shakeout temperature was equivalent. The refrigeration efficiency and capacity were sharply decreased considering the contact resistance. The thermoelectric efficiency was only 0.03 with 20 ℃ on the cold face and 10 ℃ difference. A planer thermoelectric device contained 7 pairs of thermoelectric couple was successfully fabricated after improving the fabrication process, which provide a theoretical direction for the subsequent fabrication of thermoelectric generators.
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Published: 29 August 2019
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About author:: Yang Wang, Ph.D. candidate. Graduated from Shijia-zhuang Railway University in July, 2013 and received bachelor’s degree in materials science and enginee-ring. Since September 2013, study in College of Mate-rial Science and Engineering, Beijing University of Technology, Key Laboratory of Functional Materials. Mainly research on new cathode electronic materials and thermoelectric materials.Xin Zhang, graduated from the Beijing University of Technology Materials Science January, 2006, he received his Ph.D. degree in engineering. In May of the same year, he began to engage in teaching and scienti-fic research in the School of Material Science and Engineering, Beijing University of Technology, mainly research on the study of thermoelectric energy conversion materials and devices. Presided over by the National Natural Science Foundation of China, Beijing Natural Science Foundation of China, Beijing Middle-aged Backbone Teachers Program, the school youth fund projects such as J. Appl. Phy., J. Alloy. Comp., J. Electr. Mater. and other international publications reviewers. |
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