A gas pipeline was dent caused by mechanical impact deformed plastically beyond repair. In order to know the actual integrity condition, fitness for services (FFS) analysis has been conducted. Based on field inspection the geometry and size of the damage pipe section has been quantified and fed to model the actual defect. A FFS level…
Risk based inspection (RBI) has became a major tool in inspection management for pressurized system, and it has already entered a mature stage, particularly in oil and gas, petrochemical, mining and power industries. For the last twenty years, numerous study and research have been conducted in major engineering universities leading to countless papers and journals…
Reliability is the likelihood of a equipment or system operating safely (failure-free) under specific operating conditions for a certain period of time. To ensure the reliability of a system or facility, a series of maintenance strategies are prepared and implemented. Reliability is measured in mean time between failures (MTBF) in years, or in the reliability…
Functional safety plays a crucial role in ensuring the reliability and effectiveness of safety-related systems. One of the key aspects of functional safety is SIL (Safety Integrity Level) and its verification. To understand it better, we will delve into the concept of SIL, its significance, and the process of SIL verification. 1. What is SIL?…
Reliability centred maintenance (RCM) is commonly conducted in process plants to generate the best maintenance strategy in the form of a detail inspection and test plan (ITP), or so called a task list, for each particular equipment including static, rotating and electrical equipment, and instrument and safety critical equipment, and so the reliability and availability…
Failure analysis had been conducted on an oil heater in a Refinery Plant. One of 6” OD tubes heater bulged and ruptured due to creep (high temperature deformation). Upon analysis it was found that the cause of failure is due to fire impingement on that tube causing a short term over heat (hot spot) and…
Remaining life based on finite element analysis: Table 1 Remaining life estimation at HIP turbine blade firtree-disk contact
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