| dc.description.abstract | ABSTRACT
This project explores whether some of the Pressure Relief Devices (PRDs) installed on
PETRONAS Gas Berhad’s liquid transmission pipelines can be safely removed to cut
down on maintenance costs. PRDs play a key role in preventing dangerous pressure build-
up but maintaining them across a vast pipeline network can be costly. Following the
success of earlier studies that showed certain PRDs in gas pipelines were no longer needed,
this study examines if the same approach can work for liquid pipelines.
We focused on 64 PRDs located at scrapper and metering stations across the Peninsular
Gas Utilization (PGU) pipeline network. By reviewing historical pressure data and
assessing various overpressure scenarios like blocked outlets, external fires, and
temperature changes, we aimed to determine if these safety devices are still necessary.
Our findings indicate that the risk of overpressure is minimal, thanks to the design of the
pipeline system, which naturally controls pressure through the discharge limits of
compressors and pumps.
The study concludes that discontinuing certain PRDs in low-risk areas could lead to
significant cost savings without compromising safety, as long as the existing integrity
programs and regular inspections continue. These insights could help PGB GTR
streamline its operations and focus resources on more critical areas, ensuring a safe and
efficient pipeline system for the future. | en_US |
