Nanofluids can be applied to increase the thermal efficiency of a parabolic trough solar collector (PTC) substituting the heat transfer base fluid. In this work, dynamic viscosity and thermal conductivity of a nanofluid made by Al2O3 nanoparticles in water were measured in a temperature range between 50 and 80 °C. We present the results obtained from a simulation environment suitable to calculate the yearly yield of a PTC, using experimental data as input for the numerical simulation. In particular, we provide a direct comparison with the base fluid in order to verify the convenience in the adoption of certain concentrations of nanofluid.
Thermophysical properties measurements and numerical simulation of the yearly yield of a parabolic trough solar collector using nanofluids
L Colla;L Fedele;S Bobbo
2015
Abstract
Nanofluids can be applied to increase the thermal efficiency of a parabolic trough solar collector (PTC) substituting the heat transfer base fluid. In this work, dynamic viscosity and thermal conductivity of a nanofluid made by Al2O3 nanoparticles in water were measured in a temperature range between 50 and 80 °C. We present the results obtained from a simulation environment suitable to calculate the yearly yield of a PTC, using experimental data as input for the numerical simulation. In particular, we provide a direct comparison with the base fluid in order to verify the convenience in the adoption of certain concentrations of nanofluid.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
