Slug Force Calculation Spreadsheet

This is a simple Slug Force calculation for two phase flow. You can fill in your number on the grey box and the output will be shown down below.

The force normally will be input into CAESAR II Piping Stress Analysis calculation to see what the impact of the force into piping system and pipe support.

The formula is well known among the engineer working in EPC Company, and was taken from one of project experience I am working with in London.

Slug Flow Calculation Sheet
INPUT DATA
SYSTEM NO.SYSTEM#01
PIPE OUTSIDE DIAMETER168.3mm
PIPE WALL THICKNESS7.11mm
PIPE INSIDE DIAMETER154.08mm
SLUG DENSITY1000kg/cu.m
AREA INSIDE PIPE0.019sqr. m
SLUG VELOCITY8m/s
BEND ANGLE90deg.
GRAVITATIONAL ACCELERATION9.81m/sqr. s
DYNAMIC AMPLIFICATION FACTOR2.0DAF
FORMULA
SLUG FLOW REACTION FORCE CALCULATION
RESULTANT FORCE, Fr3439.3674kg
3.4394KN
RESULTANT FORCES COMPONENT2.432KN

One thought on “Slug Force Calculation Spreadsheet

  • Thank you Danny,
    How can you have the slug velocity. Process only gave me velocity gas and velocity of liquid separately.

    Reply

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