TABLAS PSICROMÉTRICAS Y FORMULACIÓN DE LAS PROPIEDADES DEL AIRE HÚMEDO PARA CÁLCULO DE EQUIPOS E INSTALACIONES DE CONGELACIÓN Y OTROS PROCESOS INDUSTRIALES

Firstly the paper relates the scientific realization of psychrometric tables with wide ranges of temperatures and atmospheric pressures. Afterwards it offers the most important data according with the actual situation of investigation, and resolves the obtainment of original formulations of thermodynamic properties of moist air. The temperatures range selectioned is: From -50°C till 350°C. The altitudes range is: From -2400 m till 5000 m above sea level. The thermodynamic properties of moist air offered are: Humidity ratio, Enthalpy, Entropy, Exergy, Volume, Mixture density, Vapor pressure, Wet bulb temperature. The concordance with ASHRAE, HYLAND & WEXLER has been checked within the possible ranges. (For this work we have taken the HAAR, GALLAGHER & KELL data values for steam.)