Szczegóły publikacji
Opis bibliograficzny
Improvement of the solar thermoelectric generator performance using concentrated sunlight / Mykola MAKSYMUK, Taras PARASHCHUK, Anilkumar BOHRA, Wojciech NOWAK, Krzysztof T. WOJCIECHOWSKI // Applied Thermal Engineering ; ISSN 1359-4311. — 2025 — vol. 274 pt. A. art. no. 126606, s. 1-12. — Bibliogr. s. 11-12, Abstr. — Publikacja dostępna online od: 2025-04-25
Autorzy (5)
Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 160680 |
|---|---|
| Data dodania do BaDAP | 2025-08-08 |
| Tekst źródłowy | URL |
| DOI | 10.1016/j.applthermaleng.2025.126606 |
| Rok publikacji | 2025 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Creative Commons | |
| Czasopismo/seria | Applied Thermal Engineering |
Abstract
This study demonstrates the significant potential of solar thermoelectric generators (STEGs) to enhance the performance of hybrid PV-TEG solar systems. The proposed approach focuses on optimizing the temperature gradient across the thermoelectric converter to maximize the output energy parameters. The main idea to this optimization is the simultaneous use of a selective solar absorbing coating and an optimized number of thermoelectric modules combined with the advanced optical system. A physical model of the STEG was developed using heat balance equations solved by numerical modelling, which allowed the identification of the optimal design to maximize the output electrical power. The developed STEG prototype consists of a 50 cm × 50 cm absorber plate coated with a high absorptivity material to enhance irradiance absorption, and a commercially available thermoelectric module. Laboratory tests using a sunlight-imitating experimental setup showed that the STEG produces a maximum electrical power of 1.8 W, which is very close to the predicted data. Simulation results also showed that the combination of the advanced optical concentrator and an optimized number of thermoelectric modules can improve the energy parameters by two orders of magnitude, yielding 4 kW⋅m−2 of electricity and 73 kW⋅m−2 of output heat. This offers the possibility of obtaining ∼1 kW of electricity and 18 kW of heat power using ∼80 commercial thermoelectric modules, collecting 80 kW⋅m−2 of the input heat flux. This study emphasizes that the incorporation of an optimized STEG can significantly improve solar energy performance and overcome the limitations of traditional photovoltaic technology.
