Influence of fiber hollowness on the local thermo-electro-elastic field in a thermoelectric composite
The fiber geometry is one of the important parameters in the effective conversion performance and local strength of thermoelectric composites. In this study, the plane problem of a hollow fiber embedded within a non-linear thermoelectric medium in the presence of a uniform remote in-plane electric c...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Frontiers Media S.A.
2023-04-01
|
| Series: | Frontiers in Energy Research |
| Subjects: | |
| Online Access: | https://www.frontiersin.org/articles/10.3389/fenrg.2023.1181191/full |
| _version_ | 1827964654409744384 |
|---|---|
| author | Chuanbin Yu Haoxin Liu Chaofan Du Shichao Xing Shichao Xing Shichao Xing |
| author_facet | Chuanbin Yu Haoxin Liu Chaofan Du Shichao Xing Shichao Xing Shichao Xing |
| author_sort | Chuanbin Yu |
| collection | DOAJ |
| description | The fiber geometry is one of the important parameters in the effective conversion performance and local strength of thermoelectric composites. In this study, the plane problem of a hollow fiber embedded within a non-linear thermoelectric medium in the presence of a uniform remote in-plane electric current and a uniform remote energy flux is investigated based on the complex variable method. Closed-form expressions for all the potential functions characterizing the thermoelectric field and the associated thermal stress field in both the matrix and fiber are obtained by solving the corresponding boundary value problem. Numerical examples are presented to illustrate the effect of hollowness ratio of the fiber on the local energy conversion efficiency and interfacial thermal stress concentration. It is found that a higher conversion efficiency and a lower amount of thermal stress concentration around a hollow fiber than that around a solid fiber could be achieved simultaneously by appropriate selection of the hollowness ratio of the fiber. The results can be directly used for performance optimization and reliability evaluation in design of thermoelectric composites in engineering. |
| first_indexed | 2024-04-09T17:19:56Z |
| format | Article |
| id | doaj.art-ddd123b40ab94b2d910e1cd29d41f6b2 |
| institution | Directory Open Access Journal |
| issn | 2296-598X |
| language | English |
| last_indexed | 2024-04-09T17:19:56Z |
| publishDate | 2023-04-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Energy Research |
| spelling | doaj.art-ddd123b40ab94b2d910e1cd29d41f6b22023-04-19T04:56:28ZengFrontiers Media S.A.Frontiers in Energy Research2296-598X2023-04-011110.3389/fenrg.2023.11811911181191Influence of fiber hollowness on the local thermo-electro-elastic field in a thermoelectric compositeChuanbin Yu0Haoxin Liu1Chaofan Du2Shichao Xing3Shichao Xing4Shichao Xing5College of Architectural Science and Engineering, Yangzhou University, Yangzhou, Jiangsu, ChinaCollege of Architectural Science and Engineering, Yangzhou University, Yangzhou, Jiangsu, ChinaCollege of Architectural Science and Engineering, Yangzhou University, Yangzhou, Jiangsu, ChinaSchool of Mechanical Engineering, Tongling University, Tongling, Anhui, ChinaKey Laboratory of Construction Hydraulic Robots of Anhui Higher Education Institutes, Tongling University, Tongling, Anhui, ChinaKey Laboratory of Additive Manufacturing of Tongling City, Tongling University, Tongling, Anhui, ChinaThe fiber geometry is one of the important parameters in the effective conversion performance and local strength of thermoelectric composites. In this study, the plane problem of a hollow fiber embedded within a non-linear thermoelectric medium in the presence of a uniform remote in-plane electric current and a uniform remote energy flux is investigated based on the complex variable method. Closed-form expressions for all the potential functions characterizing the thermoelectric field and the associated thermal stress field in both the matrix and fiber are obtained by solving the corresponding boundary value problem. Numerical examples are presented to illustrate the effect of hollowness ratio of the fiber on the local energy conversion efficiency and interfacial thermal stress concentration. It is found that a higher conversion efficiency and a lower amount of thermal stress concentration around a hollow fiber than that around a solid fiber could be achieved simultaneously by appropriate selection of the hollowness ratio of the fiber. The results can be directly used for performance optimization and reliability evaluation in design of thermoelectric composites in engineering.https://www.frontiersin.org/articles/10.3389/fenrg.2023.1181191/fullthermoelectric materialscomplex variable methodhollow fiberconversion efficiencythermal stress |
| spellingShingle | Chuanbin Yu Haoxin Liu Chaofan Du Shichao Xing Shichao Xing Shichao Xing Influence of fiber hollowness on the local thermo-electro-elastic field in a thermoelectric composite Frontiers in Energy Research thermoelectric materials complex variable method hollow fiber conversion efficiency thermal stress |
| title | Influence of fiber hollowness on the local thermo-electro-elastic field in a thermoelectric composite |
| title_full | Influence of fiber hollowness on the local thermo-electro-elastic field in a thermoelectric composite |
| title_fullStr | Influence of fiber hollowness on the local thermo-electro-elastic field in a thermoelectric composite |
| title_full_unstemmed | Influence of fiber hollowness on the local thermo-electro-elastic field in a thermoelectric composite |
| title_short | Influence of fiber hollowness on the local thermo-electro-elastic field in a thermoelectric composite |
| title_sort | influence of fiber hollowness on the local thermo electro elastic field in a thermoelectric composite |
| topic | thermoelectric materials complex variable method hollow fiber conversion efficiency thermal stress |
| url | https://www.frontiersin.org/articles/10.3389/fenrg.2023.1181191/full |
| work_keys_str_mv | AT chuanbinyu influenceoffiberhollownessonthelocalthermoelectroelasticfieldinathermoelectriccomposite AT haoxinliu influenceoffiberhollownessonthelocalthermoelectroelasticfieldinathermoelectriccomposite AT chaofandu influenceoffiberhollownessonthelocalthermoelectroelasticfieldinathermoelectriccomposite AT shichaoxing influenceoffiberhollownessonthelocalthermoelectroelasticfieldinathermoelectriccomposite AT shichaoxing influenceoffiberhollownessonthelocalthermoelectroelasticfieldinathermoelectriccomposite AT shichaoxing influenceoffiberhollownessonthelocalthermoelectroelasticfieldinathermoelectriccomposite |