A-80 Volumetric Flow Rate Calculations

A-80

reflects non-ideal mixing effects.

Standard Gas FlowStandard gas flow is based on the molar volume of an ideal gas

at standard conditions. It is a direct conversion from the

stream's molar flow rate, based on the following:

• Ideal Gas at 60°F and 1 atm occupies 379.46 ft3/lbmole

• Ideal Gas at 15°C and 1 atm occupies 23.644 m3/kgmole

Actual Gas FlowThis volumetric flow rate is calculated using a rigorous vapour

density calculation at the actual stream T and P conditions, and

reflects non-ideal mixing and compressibility effects.

A.6.4 Volumetric Flow Rates as Specifications

If you require that the flow rate of your stream be specified

based on actual density or standard density as opposed to

Standard Ideal Mass Liquid density, you must use one of the

following procedures:

(A.68)

(A.69)

Actual Volume FlowMolar Flow MW

Density---------------------------------------------=

Actual Gas FlowMolar Flow MW

Density---------------------------------------------=