COMPRESSED AIR THEORY
With the cooperation and under supervision of our past president  Ir. H. Ghys
Free air delivery: FAD	m3/min l /s	Capacity of compressor, expressed in free air volume at atmospheric conditions.
Air delivery	m3/min l /s	Volume of air delivery at the outletcoks of the compressor, in compressed air conditions.
		l/s = 1000/60 m3/min
Normal flow	m3/min	Volume of air delivery at following ambient conditions: 0°C and 1.013 bar(a)(sea level)
General gas law
P x v / T = R = constant  or  P x V/T = m x R'
Pressure Bar(a)(absolute)  V: volume (m3)  v: specific volume (m3/kg)	T : absolute temperature  °K m : mole mass (Kmol)	R : individual gas constant = 287,1 J/(Kg K)  R' : universal gas constant = 8314 (J/(Kmol K)  R = R'/m
Po x Vo/To = Pi x Vi/Ti
Po, Pi : Pressure in bar(a)  (absolute)		To, Ti : absolute temperature in K (K = 273 + t°C)  R = gasconstant = 287.1  J/(Kg K)
Calculation
input conditions:
Vo =   l/s	Po = bar(a)	to =    °C
outlet conditions:
	Pi = bar(a)	ti =    °C
air delivery Vi at outlet conditions  Vi =  l/s