TY - JOUR TI - Contribution study of the thermodynamics properties of the ammonia-water mixtures AU - Kherris Sahraoui AU - Makhlouf Mohammed AU - Zebbar Djallel AU - Sebbane Omar JN - Thermal Science PY - 2013 VL - 17 IS - 3 SP - 891 EP - 902 PT - Article AB - The full thermodynamic study of the absorption refrigeration units requires the knowledge of the thermodynamic properties of the used mixture. The present work deals with the mathematical modeling of the thermodynamic properties of ammonia-water mixtures using various models. The presented model covers high vapor-liquid equilibrium pressures up to 110 [bar] and temperatures from 230 to 600 [K]. Furthermore, the calculation of the thermodynamic properties of the ammonia-water mixtures and their pure components was carried out. The obtained results were compared with results given in the literature. This shows a good concordance.