Part 4 - Calculating LOF - Flow Induced Vibration

Welcome to the end of Calculating LOF (Likelihood of Failure) - Flow Induced Vibration.

Our journey began with a crucial inquiry from the process department, requesting a calculation of LOF (Likelihood of Failure) for a resized orifice (RO).

We initially tackled the fundamental query: Does the system exhibit a kinetic energy exceeding 5000 kg/ms²? Addressing this led us to perform detailed calculations, culminating in an LOF value of 0.451.

Now, we're set to provide a clear direction for our team.

Our options are to;

1. The main line should (not shall) be redesigned [perhaps a thicker pipe]

2. Resupported [the length between support to be closer]

3. Or a detailed analysis of the main line should be conducted

4. Or vibration monitoring of the main line should be undertaken [reactive]

Given the current state of the plant—already constructed, commissioned, and operational—the first option might be less feasible. However, options 2, 3, and 4 remain viable.

Personally, I'm inclined towards option 4.

How about you? What's your take?

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