Numerical Investigation on the Electrical Performance Optimization of a Tubular Thermoelectric Generator for Waste Heat Recovery
In the waste heat utilization of automobile exhaust, the tubular thermoelectric generator (TTEG) has structural advantages compared with the flat-plate thermoelectric generator. A kind of TTEG that is composed of Bi0.5Sb1.5Te3 and Ni conical rings alternately attracts researchers' attention, an...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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EDP Sciences
2021-01-01
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| Series: | E3S Web of Conferences |
| Online Access: | https://www.e3s-conferences.org/articles/e3sconf/pdf/2021/97/e3sconf_icchmt2021_02003.pdf |
| _version_ | 1819259696853286912 |
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| author | Chen Leisheng Yu Zuyi Zhang Jingwen Lee Jaeyoung |
| author_facet | Chen Leisheng Yu Zuyi Zhang Jingwen Lee Jaeyoung |
| author_sort | Chen Leisheng |
| collection | DOAJ |
| description | In the waste heat utilization of automobile exhaust, the tubular thermoelectric generator (TTEG) has structural advantages compared with the flat-plate thermoelectric generator. A kind of TTEG that is composed of Bi0.5Sb1.5Te3 and Ni conical rings alternately attracts researchers' attention, and it generates electrical power based on the transverse thermoelectric effect. However, the electrical performance of such TTEG still needs to be improved for industrial utilization. In this study, the performance of TTEG was optimized through numerical simulation by changing its related structural parameters, including the tilt angle, the thickness of the conical ring, and the relative content of Ni. It is confirmed that the optimal tilt angle with maximum open-circuit voltage (OCV) is 27.3°; on this basis, it is found that a thinner thickness corresponds to a larger OCV; furthermore, when using a conical rings’ thickness of 0.75 mm and increasing the relative content of Ni in the Bi0.5Sb1.5Te3/Ni layered pair from 10% to 90%, the OCV decreases from 198mV to 105mV while the power density increases from 413W/m2 to 1350W/m2. It is believed that these findings can help to develop TTEGs with better electrical performance. |
| first_indexed | 2024-12-23T19:14:07Z |
| format | Article |
| id | doaj.art-233dfe3c1bbe445bb751f0168ea4f607 |
| institution | Directory Open Access Journal |
| issn | 2267-1242 |
| language | English |
| last_indexed | 2024-12-23T19:14:07Z |
| publishDate | 2021-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | E3S Web of Conferences |
| spelling | doaj.art-233dfe3c1bbe445bb751f0168ea4f6072022-12-21T17:34:21ZengEDP SciencesE3S Web of Conferences2267-12422021-01-013210200310.1051/e3sconf/202132102003e3sconf_icchmt2021_02003Numerical Investigation on the Electrical Performance Optimization of a Tubular Thermoelectric Generator for Waste Heat RecoveryChen Leisheng0Yu Zuyi1Zhang Jingwen2Lee Jaeyoung3College of Mechanical & Electrical Engineering, Shaanxi University of Science & TechnologyCollege of Mechanical & Electrical Engineering, Shaanxi University of Science & TechnologySchool of Electronic Science & Engineering, Xi’an Jiaotong UniversitySchool of Mechanical & Control Engineering, Handong Global UniversityIn the waste heat utilization of automobile exhaust, the tubular thermoelectric generator (TTEG) has structural advantages compared with the flat-plate thermoelectric generator. A kind of TTEG that is composed of Bi0.5Sb1.5Te3 and Ni conical rings alternately attracts researchers' attention, and it generates electrical power based on the transverse thermoelectric effect. However, the electrical performance of such TTEG still needs to be improved for industrial utilization. In this study, the performance of TTEG was optimized through numerical simulation by changing its related structural parameters, including the tilt angle, the thickness of the conical ring, and the relative content of Ni. It is confirmed that the optimal tilt angle with maximum open-circuit voltage (OCV) is 27.3°; on this basis, it is found that a thinner thickness corresponds to a larger OCV; furthermore, when using a conical rings’ thickness of 0.75 mm and increasing the relative content of Ni in the Bi0.5Sb1.5Te3/Ni layered pair from 10% to 90%, the OCV decreases from 198mV to 105mV while the power density increases from 413W/m2 to 1350W/m2. It is believed that these findings can help to develop TTEGs with better electrical performance.https://www.e3s-conferences.org/articles/e3sconf/pdf/2021/97/e3sconf_icchmt2021_02003.pdf |
| spellingShingle | Chen Leisheng Yu Zuyi Zhang Jingwen Lee Jaeyoung Numerical Investigation on the Electrical Performance Optimization of a Tubular Thermoelectric Generator for Waste Heat Recovery E3S Web of Conferences |
| title | Numerical Investigation on the Electrical Performance Optimization of a Tubular Thermoelectric Generator for Waste Heat Recovery |
| title_full | Numerical Investigation on the Electrical Performance Optimization of a Tubular Thermoelectric Generator for Waste Heat Recovery |
| title_fullStr | Numerical Investigation on the Electrical Performance Optimization of a Tubular Thermoelectric Generator for Waste Heat Recovery |
| title_full_unstemmed | Numerical Investigation on the Electrical Performance Optimization of a Tubular Thermoelectric Generator for Waste Heat Recovery |
| title_short | Numerical Investigation on the Electrical Performance Optimization of a Tubular Thermoelectric Generator for Waste Heat Recovery |
| title_sort | numerical investigation on the electrical performance optimization of a tubular thermoelectric generator for waste heat recovery |
| url | https://www.e3s-conferences.org/articles/e3sconf/pdf/2021/97/e3sconf_icchmt2021_02003.pdf |
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