An orifice meter was calibrated for dry air at T=90 F and P=1.3 atm. The calibration data are as follow:
dp(inches of water): 0,0.5,1.0,2.0,3.0,4.0,5.0
Q(ft^3/minute): 0,2.0,3.0,4.2,5.0,5.5,5.8
a- plot the calibration curve for this meter
b- Derive a mathematical relationship describing the calibration curve
c- Calculate the volumetric flow rate when the meter reads 4.5 inches of water
d- Calculate the mass flow rate of air in g/min