An experimental comparative assessment of the energy and exergy efficacy of a ternary nanofluid-based photovoltaic/thermal system equipped with a sheet-and-serpentine tube collector

Journal of Cleaner Production(2023)

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摘要
The usability of water based GO-TiO2-Fe3O4 ternary nanofluid in a photovoltaic/thermal (PV/T) collector from both energy and exergy perspectives is inspected in the present experimental study. The effect of nanoadditive mixing ratio (σ = 1:1:1, 1:2:1, 1:1:2, and 2:1:1), nanofluid mass flow rate (m˙nf = 20, 40, 60 and 80 kg h−1) and nanoparticle volume concentration (φ = 0%, 0.25%, 0.5% and 1%) on the outcomes is investigated. The results revealed that the nanofluid with σ = 1:1:1 has the best performance from both energy and exergy viewpoints. Among the examined cases, the maximum overall energy and exergy efficiencies were 88.23 and 15.36%, respectively, both belonging to the case of σ = 1:1:1, m˙nf = 80 kg h−1, and φ = 1%. Finally, it was found that m˙nf and φ have an escalating effect on both the overall energy and exergy efficiencies.
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关键词
Hybrid nanofluid,Ternary nanofluid,Serpentine tube,PV/T collector,Energy efficiency,Exergy efficiency
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