Experimental study and computational approach prediction on thermal performance of eutectic salt inside a latent heat storage prototype

•Performance of the melting and solidification phenomena of eutectic molten salt was predicted.•Multilayered perceptron feed-forward ANN with BP was implemented.•Stabilization period of melting is faster than solidification.•Predicted energy rate during melting process was around of 1.4/0.77 kW.hr.•Predicted energy rate during solidification process was around of 1.9/0.97.