Abstract
In current article, various sizes of copper oxide nano-powders on solidification phenomena through a tank with one sinusoidal adiabatic wall have been investigated. The shape of cold wall was circular and inside the tank filled with water. For enhancing the conduction mode, nanoparticles were dispersed in the PCM. FEM was utilized for simulation in which the region near the solid front has finer grid to capture the temperature gradient easier. The amplitude of adiabatic wall has been considered as another variable in simulations. Outcomes in view of isotherms and profiles were established. With growth of dp from 30 to 40 nm, the solidification time changes from 576.23 to 459.16 s. In addition, augmenting dp from 40 to 50 nm makes the required time to rise about 49.24%. As amplitude of adiabatic wall augments, the required time augments about 22.45%
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