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This document summarizes an experimental study on a direct absorption solar collector that uses Al2O3-H2O nanofluid as the working fluid. A full-scale collector with a gross area of 1.4 m2 was tested outdoors using four different volume fractions of Al2O3 nanoparticles (0.001%, 0.005%, 0.01%, and 0.05%) in water. The nanofluid improved the optical and thermophysical properties of the working fluid compared to plain water. Efficiency improvements of 22.1%, 39.6%, 24.6%, and 18.75% were observed for the diffe
- Author
- Hernan Mariani
- Language
- EN