Analytical and Numerical Study for the Determination of a Thermoelectric Generator’s Internal Resistance
The conversion of residual thermal energy into electricity using TEGs (Thermoelectric Generators) arises as a promising technological alternative for increasing energy efficiency and power generation. In order to optimize the performance of TEGs, it is known that the maximum output power is obtained...
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MDPI AG
2019-08-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/12/16/3053 |
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| author | Loise Rissini Kramer Anderson Luis Oliveira Maran Samara Silva de Souza Oswaldo Hideo Ando Junior |
| author_facet | Loise Rissini Kramer Anderson Luis Oliveira Maran Samara Silva de Souza Oswaldo Hideo Ando Junior |
| author_sort | Loise Rissini Kramer |
| collection | DOAJ |
| description | The conversion of residual thermal energy into electricity using TEGs (Thermoelectric Generators) arises as a promising technological alternative for increasing energy efficiency and power generation. In order to optimize the performance of TEGs, it is known that the maximum output power is obtained by matching the impedances between the TEG and the connected load. Therefore, the objective of this work is to present the development of a numerical and a simplified analytical model to determine the internal resistance (<i>R<sub>int</sub></i>) and predict the open circuit voltage, charge voltage, current and power values of TEGs. The models have used as reference the thermoelectric module TEHP 1263-1.5 (Thermonamic), with the analytical one being based on the classical theory of electrical circuit analysis and, for the numerical one, a three-dimensional geometric model was developed and the set of equations were solved in the COMSOL Multiphysics<sup>®</sup> tool by the finite element method. The <i>R<sub>int</sub></i> obtained by the analytical and numerical models were, respectively, 3.157 Ω and 6.027 Ω, and the value supplied by the supplier is 3.154 Ω. Therefore, the analytical model is indicated as a reference to estimate <i>R<sub>int</sub></i> of the TEG, allowing optimizing its use by choosing the load resistance that will result in the maximum power. |
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| format | Article |
| id | doaj.art-da29b9eade1849f78f935118372d2ad3 |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-04-14T01:40:41Z |
| publishDate | 2019-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-da29b9eade1849f78f935118372d2ad32022-12-22T02:19:45ZengMDPI AGEnergies1996-10732019-08-011216305310.3390/en12163053en12163053Analytical and Numerical Study for the Determination of a Thermoelectric Generator’s Internal ResistanceLoise Rissini Kramer0Anderson Luis Oliveira Maran1Samara Silva de Souza2Oswaldo Hideo Ando Junior3Department of Renewable Energies, UNILA, Federal University of Latin American Integration, Av. Sílvio Américo Sasdelli, 1842, Foz do Iguaçu, PR 85866-000, BrazilDepartment of Renewable Energies, UNILA, Federal University of Latin American Integration, Av. Sílvio Américo Sasdelli, 1842, Foz do Iguaçu, PR 85866-000, BrazilDepartment of Renewable Energies, UNILA, Federal University of Latin American Integration, Av. Sílvio Américo Sasdelli, 1842, Foz do Iguaçu, PR 85866-000, BrazilDepartment of Renewable Energies, UNILA, Federal University of Latin American Integration, Av. Sílvio Américo Sasdelli, 1842, Foz do Iguaçu, PR 85866-000, BrazilThe conversion of residual thermal energy into electricity using TEGs (Thermoelectric Generators) arises as a promising technological alternative for increasing energy efficiency and power generation. In order to optimize the performance of TEGs, it is known that the maximum output power is obtained by matching the impedances between the TEG and the connected load. Therefore, the objective of this work is to present the development of a numerical and a simplified analytical model to determine the internal resistance (<i>R<sub>int</sub></i>) and predict the open circuit voltage, charge voltage, current and power values of TEGs. The models have used as reference the thermoelectric module TEHP 1263-1.5 (Thermonamic), with the analytical one being based on the classical theory of electrical circuit analysis and, for the numerical one, a three-dimensional geometric model was developed and the set of equations were solved in the COMSOL Multiphysics<sup>®</sup> tool by the finite element method. The <i>R<sub>int</sub></i> obtained by the analytical and numerical models were, respectively, 3.157 Ω and 6.027 Ω, and the value supplied by the supplier is 3.154 Ω. Therefore, the analytical model is indicated as a reference to estimate <i>R<sub>int</sub></i> of the TEG, allowing optimizing its use by choosing the load resistance that will result in the maximum power.https://www.mdpi.com/1996-1073/12/16/3053Seebeck effectenergy harvestingmaximum powerimpedanceTEG |
| spellingShingle | Loise Rissini Kramer Anderson Luis Oliveira Maran Samara Silva de Souza Oswaldo Hideo Ando Junior Analytical and Numerical Study for the Determination of a Thermoelectric Generator’s Internal Resistance Energies Seebeck effect energy harvesting maximum power impedance TEG |
| title | Analytical and Numerical Study for the Determination of a Thermoelectric Generator’s Internal Resistance |
| title_full | Analytical and Numerical Study for the Determination of a Thermoelectric Generator’s Internal Resistance |
| title_fullStr | Analytical and Numerical Study for the Determination of a Thermoelectric Generator’s Internal Resistance |
| title_full_unstemmed | Analytical and Numerical Study for the Determination of a Thermoelectric Generator’s Internal Resistance |
| title_short | Analytical and Numerical Study for the Determination of a Thermoelectric Generator’s Internal Resistance |
| title_sort | analytical and numerical study for the determination of a thermoelectric generator s internal resistance |
| topic | Seebeck effect energy harvesting maximum power impedance TEG |
| url | https://www.mdpi.com/1996-1073/12/16/3053 |
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