Experimental investigation on spectrum beam splitting photovoltaic–thermoelectric generator under moderate solar concentrations

An experimental study is carried out to investigate performance of three different solar energy harvesting systems. The critical electrical outputs of a photovoltaic (PV) cell and a thermoelectric generator (TEG) namely voltage, current and maximum power generation are obtained in a PV-only and a TE...

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Bibliographic Details
Published in:Energy (Oxford) 2022-01, Vol.238, p.121988, Article 121988
Main Authors: Mahmoudinezhad, S., Cotfas, D.T., Cotfas, P.A., Skjølstrup, Enok J.H., Pedersen, K., Rosendahl, L., Rezania, A.
Format: Article
Language:English
Subjects:
Beam splitters
Energy harvesting
Hybrid system
Hybrid systems
Maximum power
Performance evaluation
Photovoltaic
Photovoltaic cells
Photovoltaics
Power conversion efficiency
Solar energy
Spectrum beam splitting
Splitting
Thermoelectric generator
Thermoelectric generators
Thermoelectricity
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Summary:An experimental study is carried out to investigate performance of three different solar energy harvesting systems. The critical electrical outputs of a photovoltaic (PV) cell and a thermoelectric generator (TEG) namely voltage, current and maximum power generation are obtained in a PV-only and a TEG-only system. The results are compared with performance of a hybrid photovoltaic-thermoelectric generator-beam splitter (PV-TEG-BS) system. The impact of spectral beam splitting technique on performance of the hybrid system is investigated. The results show that, although using the beam splitting technique decreases power generation of the TEG compared to the TEG-only case, it significantly enhances power generation of the PV cell in the hybrid PV-TEG-BS system and provides a higher overall power generation. By showing remarkable impact of the spectrum splitting technique on performance of the PV, the results of this study provide a guideline for performance evaluation of hybrid PV-TEG-BS systems. •An experimental study is carried out to investigate of PV-TEG-BS hybrid module.•Impact of spectral beam splitter on performance of hybrid module is explored.•Voltage, current and maximum output power are obtained.•Using beam splitting technique enhances overall power generation.
ISSN:0360-5442
1873-6785
DOI:10.1016/j.energy.2021.121988