Pipeline Toolbox
Function Reference Manual
Early Public Release DD-00011-000

3.4.6 cnga - United States Natural Gas Association of California (CNGA) formula
z = cnga(p,t,g=1)

Computes the compressebility factor Z using the United States Natural Gas Association of California (CNGA) formula.

Arguments

p

Average pressure Pavg   (Pa  ).

t

Average temperature Tavg   (◦K  ).

g

Gas gravity (gair= 1  ).

Returns Compressebility factor Z .

Possible Errors

CNGA unknown number of arguments

The given number of arguments is unknown.