Study of hysteretic thermoelectric behavior in photovoltaic materials using the finite element method, extended thermodynamics and inverse problems
The main objective of the present work is to develop and prove a theoretical explanation based on the Extended Non-Equilibrium Thermodynamics (ENETs) for the hysteretical thermoelectric behavior observed in certain thin-film photovoltaic materials. The ENET introduces dissipative fluxes in the entro...
| Authors: | ; ; |
|---|---|
| Format: | Article |
| Publication date: | 2013 |
| Country: | España |
| Institution: | Universitat Politècnica de València (UPV) |
| Repository: | RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia |
| Language: | English |
| OAI Identifier: | oai:riunet.upv.es:10251/74281 |
| Online Access: | https://riunet.upv.es/handle/10251/74281 |
| Access Level: | Open access |
| Keyword: | Thin-film Thermoelectric Hysteresis Finite element method Extended thermodynamics Relaxation times Inverse problems MECANICA DE LOS MEDIOS CONTINUOS Y TEORIA DE ESTRUCTURAS |
| _version_ | 1878730882156593152 |
|---|---|
| author | Palma, Roberto |
| author2 | Pérez-Aparicio, José L. Bravo, R. |
| author2_role | author author |
| author_browse | Bravo, R. Palma, Roberto Pérez-Aparicio, José L. |
| author_facet | Palma, Roberto Pérez-Aparicio, José L. Bravo, R. |
| author_role | author |
| collection | RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia |
| description | The main objective of the present work is to develop and prove a theoretical explanation based on the Extended Non-Equilibrium Thermodynamics (ENETs) for the hysteretical thermoelectric behavior observed in certain thin-film photovoltaic materials. The ENET introduces dissipative fluxes in the entropy balance that could explain this behavior. To verify this explanation from a numerical point of view, results are generated using a Finite Element (FE) formulation based on the ENET and already developed in previous publications by the authors. In addition, an identification Inverse Problem (IP) is formulated; a cost function is defined as the quadratic difference between experimental and numerical results and the IP is solved minimizing the cost function using genetic algorithms. The conclusion is that the loop-like distributions are due to energy dissipation introduced by dissipative fluxes that are closely related with relaxation times. Also, the FE-IP combination permits to find an approximated characterization of properties for several materials from single experimental curves. Finally, several numerical simulations are proposed for laboratory experiments to further validate the theoretical interpretation and to confirm the relation between relaxation times and hysteresis. |
| eu_rights_str_mv | openAccess |
| format | article |
| id | ES_251c23ae766c5214c95c6f0da2e558ea |
| institution | Universitat Politècnica de València (UPV) |
| instname_str | Universitat Politècnica de València (UPV) |
| language | eng |
| network_acronym_str | ES |
| network_name_str | España |
| oai_identifier_str | oai:riunet.upv.es:10251/74281 |
| publishDate | 2013 |
| publishDateSort | 2013 |
| publisher | Elsevier |
| publisherStr | Elsevier |
| reponame_str | RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia |
| spelling | Study of hysteretic thermoelectric behavior in photovoltaic materials using the finite element method, extended thermodynamics and inverse problems Palma, Roberto Pérez-Aparicio, José L. Bravo, R. Thin-film Thermoelectric Hysteresis Finite element method Extended thermodynamics Relaxation times Inverse problems MECANICA DE LOS MEDIOS CONTINUOS Y TEORIA DE ESTRUCTURAS The main objective of the present work is to develop and prove a theoretical explanation based on the Extended Non-Equilibrium Thermodynamics (ENETs) for the hysteretical thermoelectric behavior observed in certain thin-film photovoltaic materials. The ENET introduces dissipative fluxes in the entropy balance that could explain this behavior. To verify this explanation from a numerical point of view, results are generated using a Finite Element (FE) formulation based on the ENET and already developed in previous publications by the authors. In addition, an identification Inverse Problem (IP) is formulated; a cost function is defined as the quadratic difference between experimental and numerical results and the IP is solved minimizing the cost function using genetic algorithms. The conclusion is that the loop-like distributions are due to energy dissipation introduced by dissipative fluxes that are closely related with relaxation times. Also, the FE-IP combination permits to find an approximated characterization of properties for several materials from single experimental curves. Finally, several numerical simulations are proposed for laboratory experiments to further validate the theoretical interpretation and to confirm the relation between relaxation times and hysteresis. This research was partially supported by the Grants CSD2008-00037 Canfranc Underground Physics, Excelencia Junta Andalucia P08-TEP-03641 and Polytechnic University of Valencia under programs PAID 02-11-1828 and 05-10-2674. Elsevier https://riunet.upv.es/handle/10251/74281 |
| spellingShingle | Study of hysteretic thermoelectric behavior in photovoltaic materials using the finite element method, extended thermodynamics and inverse problems Palma, Roberto Thin-film Thermoelectric Hysteresis Finite element method Extended thermodynamics Relaxation times Inverse problems MECANICA DE LOS MEDIOS CONTINUOS Y TEORIA DE ESTRUCTURAS |
| title | Study of hysteretic thermoelectric behavior in photovoltaic materials using the finite element method, extended thermodynamics and inverse problems |
| title_full | Study of hysteretic thermoelectric behavior in photovoltaic materials using the finite element method, extended thermodynamics and inverse problems |
| title_fullStr | Study of hysteretic thermoelectric behavior in photovoltaic materials using the finite element method, extended thermodynamics and inverse problems |
| title_full_unstemmed | Study of hysteretic thermoelectric behavior in photovoltaic materials using the finite element method, extended thermodynamics and inverse problems |
| title_short | Study of hysteretic thermoelectric behavior in photovoltaic materials using the finite element method, extended thermodynamics and inverse problems |
| title_sort | Study of hysteretic thermoelectric behavior in photovoltaic materials using the finite element method, extended thermodynamics and inverse problems |
| topic | Thin-film Thermoelectric Hysteresis Finite element method Extended thermodynamics Relaxation times Inverse problems MECANICA DE LOS MEDIOS CONTINUOS Y TEORIA DE ESTRUCTURAS |
| topic_facet | Thin-film Thermoelectric Hysteresis Finite element method Extended thermodynamics Relaxation times Inverse problems MECANICA DE LOS MEDIOS CONTINUOS Y TEORIA DE ESTRUCTURAS |
| url | https://riunet.upv.es/handle/10251/74281 |