Abstract
Variations of needed time for full solidification with impose of fins and various sizes of nanoparticles is main goal of current article. Not only the needed time values but also, contours and solid front configurations were depicted in outputs which were obtained from (Finite element method) FEM modeling. Diameter of particles has various impact of thermal features and finding the best design needs considering various values of dp. Time increases about 16.09% with augment of dp from 30 to 50 nm. So, it is not recommended to rise dp upper than 40 nm. Selecting dp = 40 nm instead of 30 nm results in 16.91% augmentation in solidification rate. To reduce the time of discharging to 614.8 s, the case with greatest length and dp = 40 nm should be selected. There was about 5.86% reduction in discharging time with augment of L. The minimum temperature of storage unit was obtained for dp = 40 nm and same behavior is examined for values of energy.