Recent advances in using nanofluids in renewable energy systems and the environmental implications of their uptake

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It has been more than two decades since the discovery of 'nanofluids' - mixtures of common liquids and solid nanoparticles with at least one dimension below 100 nm in size. While colloidal suspensions of particles (which include larger particles) have been studied for several decades, the term 'nanofluids' designates fluid systems that have enhanced thermal and optical properties. Although barriers to their commercial adoption remain, the field of nanofluids has continued to grow. Many studies have considered the effects of adding nanoparticles on the thermal efficiency and exergy efficiency of renewable energy systems particularly solar systems, however, few have investigated their potential for emission reductions. Critically, since renewable energy technologies aim to reduce the environmental impact of energy systems, this review focuses on whether nanofluids provide a net environmental benefit. Thus, in addition to providing a comprehensive overview of this body of literature from an environmental perspective, this review also highlights areas for future work that could help ensure that nanofluids have a net positive environmental impact in renewable energy systems going forward.
Publisher
ELSEVIER
Issue Date
2021-08
Language
English
Article Type
Review
Citation

NANO ENERGY, v.86

ISSN
2211-2855
DOI
10.1016/j.nanoen.2021.106069
URI
http://hdl.handle.net/10203/286956
Appears in Collection
ME-Journal Papers(저널논문)
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