The period of melting process should be managed according to application. The rate of melting can be increased with improvement of the geometry of container and melting the properties of paraffin. The current storage unit utilizes spiral tubes filled with hot hybrid nanomaterial, which is heated by the sun. To efficiently use this heat, a spiral pipe filled with paraffin was employed in the storage unit. Two configurations, both with equal paraffin volume, were implemented using this setup. The present study employed spiral tubes as a storage unit filled with hot hybrid nanomaterial, which was heated by solar energy. To optimize heat transfer, a spiral pipe was used instead of a straight one. Two configurations with equal paraffin volume were tested, differing only in the location where the hybrid fluid exits the unit. Both types have the same volume of paraffin. The inlet and outlet section exist in top left side in type 1 while the type 2 represent the arrangement which inlet section is position in left bottom side while outlet section is positioned in right upper side. In the current study, two geometries have been examined. In the first geometry (Type 1), the nanofluid section's inlet and outlet were positioned on the left side. In the second geometry (Type 2), the inlet section was located on the right side, while the outlet section remained on the left side. The governing equations were achieved based on approximation of single phase model for nanomaterial. For simulating of this unsteady problem, finite volume method has been implemented which is verified based on previous publication. The grid independency and optimized value of time step have been applied. The outcomes were analyzed to determine the most effective configuration. In Type 1 configuration, the SF changed from 0.638 to 0.094 as the time increased from 10 to 30 min.