kth.sePublications KTH
Operational message
There are currently operational disruptions. Troubleshooting is in progress.
Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Enhancing Air-Based PVT Performance: A numerical and experimental assessment of V-Baffle designs
KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Building Technology and Design.ORCID iD: 0009-0008-9829-0312
KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Sustainable Buildings.ORCID iD: 0000-0003-0550-1149
KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Building Technology and Design. Uponor AB, Hackstavägen 1, Västerås, 721 32, Sweden, Hackstavägen 1.ORCID iD: 0000-0001-6266-8485
2025 (English)In: Applied Thermal Engineering, ISSN 1359-4311, E-ISSN 1873-5606, Vol. 262, article id 125175Article in journal (Refereed) Published
Abstract [en]

The efficiency and lifetime of Photovoltaic cells degrade with elevated temperature levels over time. Cooling the cells contributes positively to their performance and their lifespan. Heat transfer enhancement techniques using thermal inserts, such as baffles, have been investigated widely within Solar Air Heater research. However, these strategies have not yet been applied to Photovoltaic Thermal technology for such cooling purposes, despite their potential benefits. In this study, V-shaped baffles inspired from Solar Air Heaters are evaluated in the context of Air-Based Photovoltaic Thermal for the first time. A prototype was experimentally tested to validate a Computational Fluid Dynamics model. To further improve the thermohydraulic performance of baffles, a novel design was developed, that of smooth V-baffles. In general, a decrease of 8 C° on average was achieved by the cooling baffles. The new design exhibited a higher Thermal Enhancement Factor than that of the straight edge equivalents, up to 22% higher. Additionally, it was indicated that the use of baffles can be beneficial for Photovoltaic Thermal systems, by achieving a more uniform temperature distribution of the photovoltaic cells, up to 47%. This minimizes the formation of hot zones along the photovoltaic surface.

Place, publisher, year, edition, pages
Elsevier BV , 2025. Vol. 262, article id 125175
Keywords [en]
Air-Based, Baffle, CFD, Experimental, PVT, Validation
National Category
Energy Engineering
Identifiers
URN: urn:nbn:se:kth:diva-358165DOI: 10.1016/j.applthermaleng.2024.125175ISI: 001411461100001Scopus ID: 2-s2.0-85212127596OAI: oai:DiVA.org:kth-358165DiVA, id: diva2:1924792
Note

QC 20250226

Available from: 2025-01-07 Created: 2025-01-07 Last updated: 2025-02-26Bibliographically approved

Open Access in DiVA

No full text in DiVA

Other links

Publisher's full textScopus

Authority records

Aspetakis, GiorgosWang, CongWang, Qian

Search in DiVA

By author/editor
Aspetakis, GiorgosWang, CongWang, Qian
By organisation
Building Technology and DesignSustainable Buildings
In the same journal
Applied Thermal Engineering
Energy Engineering

Search outside of DiVA

GoogleGoogle Scholar

doi
urn-nbn

Altmetric score

doi
urn-nbn
Total: 146 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf