Computer Subroutines for Rapid Calculation of the Liquid Entropies of Ammonia/NaSCN and Ammonia/LiNO3 Solutions

This paper proposes an alternative for the calculation of liquid entropy binary solutions is proposed in this form correlation equations with higher computation speed. These were obtained by using both least squares method modelling reference and a classical matrix computer solving modeling entropy. Goodness-of-fit parameters such as sum estimation errors (SSE), Pearson's factor (R-squared), root mean square error (RMSE) relative (ε) computed different results compared those digitized data. The suggested correlations showed good accuracy estimating ammonia/NaSCN ammonia/LiNO3 solutions, average SSE 1.23.10^(-4), R-squared 0.99, RMSE 2.90.10^(-3) ε 0.59 % ammonia/LiNO3, 1.57.10^(-4), 3.2.10^(-3) 0.83 ammonia/NaSCN. are temperature range from 0 to 100 °C, decision support tools combined systems waste heat recovering at very low which couples ammonia / NaSCN LiNO3 must be used.