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Advances in Enhancing the Photothermal Performance of Nanofluid-Based Direct Absorption Solar Collectors
Zenghui Zhang1, Xuan Liang1, Dan Zheng1,2
1School of Energy and Environmental Engineering, Hebei University of Technology, Tianjin 300401, China.
Nanomaterials (Basel, Switzerland)
|September 26, 2025
Summary
This review analyzes nanofluids for solar energy, focusing on direct absorption mechanisms. Advanced nanofluids show promise for enhanced solar energy harvesting and low-carbon systems.
Area of Science:
- Materials Science
- Renewable Energy Engineering
- Nanotechnology
Background:
- Nanofluids enhance solar collector heat transfer, aiding the shift to low-carbon energy.
- A systematic understanding of nanofluid photothermal performance in direct absorption is needed.
Purpose of the Study:
- To critically review nanofluids' role in solar energy harvesting, emphasizing direct absorption mechanisms.
- To comparatively evaluate advanced nanofluids like magnetic, plasma, and nanophase change slurries.
Main Methods:
- Literature review and critical analysis of nanofluid photothermal performance.
- Comparative evaluation of different nanofluid types (magnetic, plasma, nanophase change slurries).
Main Results:
- Nanofluids improve solar absorption via nanoparticle light absorption, surface plasmon resonance, and scattering.
- Advanced nanofluids offer unique benefits in flow manipulation, thermal storage, and optical energy capture.
Conclusions:
- Nanofluids hold significant potential for next-generation solar energy systems.
- Further research on life cycle assessment, hybrid nanofluids, predictive modeling, and stability is crucial for practical application.
