Experimental demonstration, modeling and analysis of a novel latent-heat thermal energy storage unit with a helical fin

It is argued that the suggested configuration may have a number of advantages in comparison with the existing fin-array systems. These advantages include enhanced melting, prevention of increased pressures in melting (or solidification if the material is anomalous like water) and voids in solidification, and highly-convenient handling and maintenance of the system. Also, the helical fin might be attached to the outer tube (shell), and a configuration in which the HTF flows across the shell is possible while preserving all important features of the unit explored.