Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
11011423 | Solar Energy | 2018 | 6 Pages |
Abstract
A pilot scaled solar collector was used to compare different heat transfer fluids, with a radiation source of a 1000â¯W halogen lamp, real time acquisition with a multiplexer and a Pt100 temperature control. The heat transfer fluid studied was a mixture of water and ethylene glycol 30% (w/w) with three different concentrations of nanographene (0.05, 0.08, 0.10â¯wt.%). The concentration that showed better results was used in a real test situation, without addition of dispersive agents. For both situations we report a higher efficiency of the collector, without visible clogging problems, due to the low nanomaterial concentration used.
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Authors
F.E.B. Bioucas, S.I.C. Vieira, M.J.V. Lourenço, F.J.V. Santos, C.A. Nieto de Castro,