Analysis of Flaws in Fuel Flow Pipelines Using Conventional Non-Destructive Testing Methods

This study analyses the detectability of various flaws in fuel flow pipelines by using conventional NDT methods. Non-Destructive Test (NDT) is used to detect defects in weldment as it does not affect, destroy, or disturb the main features of the product or material. Radiography test, Manual Ultrasonic Test and Magnetic Particle Test were conducted on the 2-, 6- and 10-inches pipes and the flaw lengths were recorded. The data were analysed statistically with Rstudios to ascertain the most suitable methods. The results showed that there was not much statistical difference between the Radiographic Test and Manual Ultrasonic Test in terms of flaws detection in 2-, 6- and 10-inches pipelines as they all recorded mean values of 19.75mm and 19.25mm defect length when compared with the purposely Inserted defect at 20mm. Additionally, the study revealed that both Radiography Test and Manual Ultrasonic Test could be used interchangeably. Magnetic Particle test was found to be more suitable at detecting flaws on the surface of the weld but less likely to detect flaws deeper in the weld.