Simple Equations for Predicting Entropy of Ammonia-Water Mixture
作者： G. Soleimani Alamdari
DOI:
关键词: Curve fitting 、 Mass fraction 、 Vapor pressure 、 Thermodynamics 、 Chemistry 、 Ammonia 、 Vapor–liquid equilibrium
摘要: This work presents a set of three simple and explicit equations as function temperature, pressure, mass fraction for calculation the entropy ammonia-water mixture in saturated super heated conditions. They are intended use optimization second law efficiency absorption processes. The constructed by least square method curve fitting using valid available data literature. presented liquid vapor within -40 ≤ T 140oC, 0.1 P 10 MPa Tsat(P) 350oC, entire composition range. obtained results compared with graphical statistical forms, comparisons reveal that deviations ±0.05 kJ/kg.K mixture, − 0.04 to +0.06 0.08 + 0.02 region.
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