Hydraulic Analysis

Gas Compressibility Factor

This web application determine Gas Compressibility factor based on California Natural Gas Association (CNGA) Method and Standing-Katz Method.

Gas Data

 
kPag
°C

CNGA Method

\displaystyle \displaystyle Z = {\left( 1 + \left(\frac{P_{avg}*344400*\left(10\right)^{1.785*G}}{T_f^{3.825}}\right)\right)}^{-1}

where, Pavg is Gas Pressure in psig, Tf is Gas Temperature in °R and G is Gas Gravity.

Standing-Katz Method

Reference

  1. Transmissions Pipeline Calculations and Simulations Manual by E. Shashi Menon, 2015 (Link)
  2. Gas Pipeline Hydraulics - CED Engineering