Flare Piping Design

Line Segment
Pipe outlet abs. pressure, p2    psia
Temperature, Tf    deg.F
Mol wt of gas, M    lb/lbmol
Viscosity of gas, mu    cP
Mass flow rate, qm    lb/hr
Mass heat capacity at const press, Cpm    Btu/(lb*F)
Pipe Size and Schedule, PS
Pipe ID, d_in    in
Mach number at the pipe outlet, Ma2_1
Moody friction factor, f
Length of pipe, l    ft
Qty of 90 deg. std elbows (K = 30*f), n_e
Equivalent length of pipe and fittings, l_eq    ft
Pipe inlet abs. pressure (initial guess), p1_in    psia
Pipe inlet abs. pressure, p1    psia
Critical Pressure, Pcrit (for p2)    psia
Root of the equation, x
Number of iterations, n_iter
Verify1: Verify if the solution converged
Density of the gas, rho    lb/ft3
Actual volumetric flow rate of the gas, Q    ft3/min
Gas velocity, V    ft/s
Reynolds Number, Re

Help

General Notes:

Note: Refer to the "Terms and Conditions" in the 'About' section before using the software.

1) "Flare Piping Design" is a software program that can be used to estimate the pressure, other properties in a flare system.

2) The piping configuration should match the sketch shown.

3) The fluid inside the piping is assumed to be ideal gas.

4) Flow considered is isothermal, compressible flow of gas.

5) Pipe friction data considered for clean commercial steel pipe with flow in zone of complete turbulence.

6) If the solver does not converge, adjust the values in "Pipe inlet abs. pressure (initial guess), p1_in" and try again.

7) Calculations are based on API 521 and simplified assumptions and are considered approximate.

8) User needs to enter all values in white boxes / select pipe sizes in white boxes.
Some of the pre-populated information needs to be updated based on the user's design conditions.

9) Values / numbers need to be entered without any characters such as commas.

10) For example, if BDV-1 or PSV-2 are not applicable, the corresponding flow rate can be set to a small value, say 0.001.

11) If you notice any error, please let us know, so that can be rectified.

12) Contact us with any comments / questions : engineeringstream11@gmail.com

13) Visit us for more software programs at https://engineering-stream.com

Flare Piping Design (Beta Version)

Configuration

Flare Piping Design

General Notes:

Note: Refer to the "Terms and Conditions" in the 'About' section before using the software.