An experimental study on the effect of Cu-synthesized/EG nanofluid on the efficiency of flat-plate solar collectors

Amirhossein Zamzamian, Mansoor KeyanpourRad, Maryam KianiNeyestani and Milad Tajik Jamal-Abad

Renewable Energy, 2014, vol. 71, issue C, 658-664

Abstract: An experimental study performed to investigate the effect of Cu nanoparticle on the efficiency of a flat-plate solar collector. The weight fractions of the nanoparticles tested in this study having average diameter of 10 nm, were 0.2% and 0.3% of the nanofluid. A one-step method was used to prepare copper nanofluid from reduction of CuSO4·5H2O with NaH2PO2·H2O in ethylene glycol as the solvent. The experiments were performed in different volume flow rates of the nanofluid from 0.016 to 0.050 kg/s and the standard of ASHRAE 93 was used to test the solar collector's performance. It was found that by increasing the nanoparticle weight fraction, the efficiency of the collector was improved. Also, the lowest removed energy parameter could be reached by using 0.3 wt% Cu/EG nanofluid at 1.5 Lit/min and the highest absorbed energy parameter was achieved under the same conditions.

Keywords: Cu/EG nanofluid; Flat-plate solar thermal collector; Thermal efficiency; Thermal conductivity (search for similar items in EconPapers)
Date: 2014
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Citations: View citations in EconPapers (26)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:renene:v:71:y:2014:i:c:p:658-664

DOI: 10.1016/j.renene.2014.06.003

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