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

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

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.

Suggested Citation

  • Zamzamian, Amirhossein & KeyanpourRad, Mansoor & KianiNeyestani, Maryam & Jamal-Abad, Milad Tajik, 2014. "An experimental study on the effect of Cu-synthesized/EG nanofluid on the efficiency of flat-plate solar collectors," Renewable Energy, Elsevier, vol. 71(C), pages 658-664.
    • Handle: RePEc:eee:renene:v:71:y:2014:i:c:p:658-664
    DOI: 10.1016/j.renene.2014.06.003
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    References listed on IDEAS

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    1. Yousefi, Tooraj & Veysi, Farzad & Shojaeizadeh, Ehsan & Zinadini, Sirus, 2012. "An experimental investigation on the effect of Al2O3–H2O nanofluid on the efficiency of flat-plate solar collectors," Renewable Energy, Elsevier, vol. 39(1), pages 293-298.
    2. Ho, C.D. & Chen, T.C., 2006. "The recycle effect on the collector efficiency improvement of double-pass sheet-and-tube solar water heaters with external recycle," Renewable Energy, Elsevier, vol. 31(7), pages 953-970.
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