Answer to Question #212823 in Mechanical Engineering for Kennymoore

Question

Atmospheric air at a pressure of 760 mm Hg has a temperature of 32^oC and a percentage saturation as 

determined from a psychrometric chart of 52%. Calculate 

(i) The partial pressure of the vapour and the dry air 

(ii) The specific humidity 

(iii) The dew point 

(iv) The density of the mixture.

Answer 1

Given:-

Dry Bulb Temperature= 32°C

Relative Humidity= 52%

Using Psychometric chart, the value of other parameter are as follows

(i) The partial pressure of the vapour and the dry air = 2475 Pa

(ii) The specific humidity =0.0156 kg/kg

(iii) The dew point = 20.93 °C

(iv) The density of the mixture = 1.15 Kg / m³