الملخص الإنجليزي
The repeated motion of a particle about its mean position is termed as vibration. Vibration
is present in all rotating, and reciprocating machinery. Vibrations cannot be eradicated but
can be minimized and kept within reasonable limits. Vibration Analysis of piping
elements in Oil & Gas process industries like Mina' Al Fahal is very significant. Vibration
can be a significant threat to plants and might cause a shutdown, besides threatening the
safety of the employees as well as the surrounding environment. The vibration can be
directly related to the flow of the main process fluid through the piping system. This study
aims to investigate and analyze the flow induced vibration in the piping system within
Mina' Al Fahal. Direct measurements of vibration (both magnitude, and frequency) were
conducted for this purpose, and at different locations within the Mina'Al Fahal. The effect
of different operating conditions for fully opened and partially opened flow has been
examined. Twelve pipelines of different sizes varying from 2-inch diameter to 40-inch
diameter and Carbon Steel &Stainless-Steel materials have been monitored and recorded
for vibrations. It is proposed that pipes of larger diameter (40-inch) showed a peak
amplitude value of 9.4m/s2
and lower diameter pipe (6-inch) showed a peak amplitude
value of 9.73m/s2
, the results can be utilized for forecasting the failure of the piping system
as a result of induced vibration. Various countermeasures are suggested to reduce the
vibrations. Moreover, measured vibration data were compared with theoretical relations
and very minimum error is observed between experimental and theoretical results with
error less than 4%.
