Thermoelectric Energy Conversion in a Lid-Driven Cavity Microgenerator Using Nanofluids.
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| Title: | Thermoelectric Energy Conversion in a Lid-Driven Cavity Microgenerator Using Nanofluids. |
|---|---|
| Authors: | Gonzalez-Zamudio, Edgar Alexandro1 (AUTHOR), Olivares-Robles, Miguel Angel1 (AUTHOR) olivares@ipn.mx, Andrade-Vallejo, Andres Alfonso1 (AUTHOR) |
| Source: | Nanomaterials (2079-4991). Sep2025, Vol. 15 Issue 18, p1409. 20p. |
| Subjects: | Thermoelectric conversion, Thermoelectric generators, Fluid dynamics, Numerical analysis, Nanofluids, Electric power production, Thermocouples |
| Abstract: | The present research seeks to characterize and evaluate a lid-driven cavity–TEG system to harness residual energy. Therefore, the behavior of water and a nanofluid ( S i O 2 ) in a rectangular lid-driven cavity is numerically studied. The Navier–Stokes and energy conservation equations are solved using the finite difference method in Python. The fluid behavior is analyzed with a Reynolds number of 100, Richardson number of 100-77 and variable lid direction. Likewise, a thermoelectric module is integrated in the cavity, and the power generated by varying the size and number of thermocouples is studied. The results obtained contribute to the characterization of applicable thermal systems for their optimization. In the cavity, when the lid direction is positive, its interaction with the buoyant flow generates a vortex on the right side, and multiple vortices when it is in the negative direction; the isotherms present horizontal and vertical stratification in both cases. μ TEG generates the most power with a 0.07 mm thermocouple size in the negative lid direction case, with an inlet gradient temperature of 8 K. S i O 2 (Ri = 77) showed a 23% increase in power output compared to water (0.318 μW/cm2 and 0.461 μW/cm2, respectively). With a 30% higher inlet gradient temperature ( S i O 2 at Ri = 100, Δ T = 10.4 K, 0.569 μW/cm2), it generated 79% more power output compared to water. [ABSTRACT FROM AUTHOR] |
| Copyright of Nanomaterials (2079-4991) is the property of MDPI and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
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| Header | DbId: egs DbLabel: Engineering Source An: 188323491 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Thermoelectric Energy Conversion in a Lid-Driven Cavity Microgenerator Using Nanofluids. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Gonzalez-Zamudio%2C+Edgar+Alexandro%22">Gonzalez-Zamudio, Edgar Alexandro</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Olivares-Robles%2C+Miguel+Angel%22">Olivares-Robles, Miguel Angel</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> olivares@ipn.mx</i><br /><searchLink fieldCode="AR" term="%22Andrade-Vallejo%2C+Andres+Alfonso%22">Andrade-Vallejo, Andres Alfonso</searchLink><relatesTo>1</relatesTo> (AUTHOR) – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Nanomaterials+%282079-4991%29%22">Nanomaterials (2079-4991)</searchLink>. Sep2025, Vol. 15 Issue 18, p1409. 20p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Thermoelectric+conversion%22">Thermoelectric conversion</searchLink><br /><searchLink fieldCode="DE" term="%22Thermoelectric+generators%22">Thermoelectric generators</searchLink><br /><searchLink fieldCode="DE" term="%22Fluid+dynamics%22">Fluid dynamics</searchLink><br /><searchLink fieldCode="DE" term="%22Numerical+analysis%22">Numerical analysis</searchLink><br /><searchLink fieldCode="DE" term="%22Nanofluids%22">Nanofluids</searchLink><br /><searchLink fieldCode="DE" term="%22Electric+power+production%22">Electric power production</searchLink><br /><searchLink fieldCode="DE" term="%22Thermocouples%22">Thermocouples</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: The present research seeks to characterize and evaluate a lid-driven cavity–TEG system to harness residual energy. Therefore, the behavior of water and a nanofluid ( S i O 2 ) in a rectangular lid-driven cavity is numerically studied. The Navier–Stokes and energy conservation equations are solved using the finite difference method in Python. The fluid behavior is analyzed with a Reynolds number of 100, Richardson number of 100-77 and variable lid direction. Likewise, a thermoelectric module is integrated in the cavity, and the power generated by varying the size and number of thermocouples is studied. The results obtained contribute to the characterization of applicable thermal systems for their optimization. In the cavity, when the lid direction is positive, its interaction with the buoyant flow generates a vortex on the right side, and multiple vortices when it is in the negative direction; the isotherms present horizontal and vertical stratification in both cases. μ TEG generates the most power with a 0.07 mm thermocouple size in the negative lid direction case, with an inlet gradient temperature of 8 K. S i O 2 (Ri = 77) showed a 23% increase in power output compared to water (0.318 μW/cm2 and 0.461 μW/cm2, respectively). With a 30% higher inlet gradient temperature ( S i O 2 at Ri = 100, Δ T = 10.4 K, 0.569 μW/cm2), it generated 79% more power output compared to water. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Nanomaterials (2079-4991) is the property of MDPI and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.3390/nano15181409 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 20 StartPage: 1409 Subjects: – SubjectFull: Thermoelectric conversion Type: general – SubjectFull: Thermoelectric generators Type: general – SubjectFull: Fluid dynamics Type: general – SubjectFull: Numerical analysis Type: general – SubjectFull: Nanofluids Type: general – SubjectFull: Electric power production Type: general – SubjectFull: Thermocouples Type: general Titles: – TitleFull: Thermoelectric Energy Conversion in a Lid-Driven Cavity Microgenerator Using Nanofluids. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Gonzalez-Zamudio, Edgar Alexandro – PersonEntity: Name: NameFull: Olivares-Robles, Miguel Angel – PersonEntity: Name: NameFull: Andrade-Vallejo, Andres Alfonso IsPartOfRelationships: – BibEntity: Dates: – D: 15 M: 09 Text: Sep2025 Type: published Y: 2025 Identifiers: – Type: issn-print Value: 20794991 Numbering: – Type: volume Value: 15 – Type: issue Value: 18 Titles: – TitleFull: Nanomaterials (2079-4991) Type: main |
| ResultId | 1 |
