Skip to main content

Posts

Showing posts with the label Relative Humidity

8 Steps to read Psychometric Chart , Psychometric Conversion Chart & related important terms.

Psychometrics (H ygrometry)- ·          It is the study of the properties of mixtures of air and water vapour. ·          It’s a determination of physical and thermodynamic properties of gas-vapor mixtures . ·          Atmospheric air is a mixture of many gases plus water vapour and a number of pollutants. Composition of standard air are listed below- Constituent Molecular Weight Molecular fraction Oxygen 32.000 0.2095 Nitrogen 28.016 0.7809 Argon 39.944 0.0093 Carbon dioxide 44.010 0.0003 ·                 The amount of water vapour and pollutants vary from place to place. The concentration of water vapour and pollutants decrease with altitude, and above an altitude of about 10 km...