1
Nano Chemical Eng. Dep., Faculty of Advanced Technologies, Shiraz University, Shiraz, I. R. Iran
2
Transport Phenomena & Nanotech. Lab., Engineering School, University of Tehran, I. R. Iran
Abstract
In this article CuO/water nanofluid was synthesized by using polyvinylpyrolidone (PVP) as the dispersant. Thenanofluid stability period and the heat transfer enhancement were determinedby measuring the thermal conductivities. To study the nano-fluid stability, zeta (ζ) potential, and absorbency were measured under different pH values and PVP surfactant concentrations; also thermal conductivity enhancement was measured based on different volume fraction of CuO nanoparticles and temperature. The results showed that the nano-fluid with PVP surfactant has a good stability of about a week in the optimum pH and PVP concentration which are 8 and 0.095,respectively. Furthermore, in the abovementioned concentration of pH and PVP, optimum CuO volume fraction of 6% was obtained, in which, the thermal conductivity enhancement is 17% at 25oC. Finally, with changing temperature at optimum values (for PVP surfactant and CuO nanoparticles), 31% increase in thermal conductivity was obtained at 50oC.
Sahooli,M , Sabbaghi,S and Shariaty Niassar,M . (2012). Preparation of CuO/Water Nanofluids Using Polyvinylpyrolidone and a Survey on Its Stability and Thermal Conductivity. International Journal of Nanoscience and Nanotechnology, 8(1), 27-34.
MLA
Sahooli,M , , Sabbaghi,S , and Shariaty Niassar,M . "Preparation of CuO/Water Nanofluids Using Polyvinylpyrolidone and a Survey on Its Stability and Thermal Conductivity", International Journal of Nanoscience and Nanotechnology, 8, 1, 2012, 27-34.
HARVARD
Sahooli M, Sabbaghi S, Shariaty Niassar M. (2012). 'Preparation of CuO/Water Nanofluids Using Polyvinylpyrolidone and a Survey on Its Stability and Thermal Conductivity', International Journal of Nanoscience and Nanotechnology, 8(1), pp. 27-34.
CHICAGO
M Sahooli, S Sabbaghi and M Shariaty Niassar, "Preparation of CuO/Water Nanofluids Using Polyvinylpyrolidone and a Survey on Its Stability and Thermal Conductivity," International Journal of Nanoscience and Nanotechnology, 8 1 (2012): 27-34,
VANCOUVER
Sahooli M, Sabbaghi S, Shariaty Niassar M. Preparation of CuO/Water Nanofluids Using Polyvinylpyrolidone and a Survey on Its Stability and Thermal Conductivity. International Journal of Nanoscience and Nanotechnology. 2012;8(1):27-34.
