How do you calculate the volume of a air cylinder when I know the temperature and pressure? - how to calibrate air temperature
I have a cylinder (6Litres), is filled with regular air, the temperature is 20 ° C ± 2 ° C.
I'm trying to calibrate a rotameter flow meter with standard conditions of 1013 mbar abs and 20 ° C, which through the rotameter in a cylinder, which has been calibrated, but I know that the pressure affects the volume. If this pressure, 1025 mbar abs so that the volume of the cylinder with?
Wednesday, February 3, 2010
How To Calibrate Air Temperature How Do You Calculate The Volume Of A Air Cylinder When I Know The Temperature And Pressure?
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2 comments:
Take advantage of the relationship between the actual pressure at calibration pressure for use as a correction factor.
PV / T = PV = constant T
V = T / P
T = 20, P = 1013; calculate V (verify the compatibility of the units) at 20 ° C. V = 20/1013.
For T = 20 and P = 1025, V has a new value. V = 20/1025, a smaller volume.
Check out the first formula for a T equal to cases of elevated P, V must be reduced.
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