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

Sajjad Mahmoudi Nezhad, Daniel Cotfas, Petru Cotfas, Enok Johannes Haahr Skjølstrup, Kjeld Pedersen, Lasse Rosendahl, Alireza Rezaniakolaei

Research output: Contribution to journalJournal articleResearchpeer-review

20 Citations (Scopus)

Abstract

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.
Original languageEnglish
Article number121988
JournalEnergy
Volume238
Issue numberPart C
ISSN0360-5442
DOIs
Publication statusPublished - 2022

Keywords

  • Photovoltaic
  • Thermoelectric generator
  • Spectrum beam splitting
  • Hybrid system
  • Power conversion efficiency

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